some people may know about this but it has some good info http://www.mazdaspeedforums.org/foru...bo-down-39833/..... and just in case that link ever fails ....
posted by DarkSun280 over at mazdaspeedforums.org
''In light of recent talk of even bigger and bigger turbos being used on our platform I felt the need to put more info out there about turbo sizing in general. This original post will be up dated more and more as I have free time.
Honestly this is pointed more at Me, Su Mark, and the Race roots crew cause I got the rude awakening that my 60-1 was actually SLIGHTLY bigger then a standard gt35r. Some times you think you've done all your home work on some thing and months later you find out you haven't. I just want to add that when trying to size a turbo there are companies Like AGP you can call and ask them questions on sizing vs displacement and about your power goals if your ever Iffy on something.
Now on to the info.
So Lucky for us we a similar displacement to the srt-4 so much of their turbo info can apply to us if we ignore the DI, PI factor. This info is from AGP in regards to SRT-4's. Any of this info can be found by searching on the internet.
"50 trim: Good all around turbo. Spools fast, and will make great power. This turbo is perfect for those wanting to run lower boost, and those who run only pump gas. If you plan to run nothing but pump gas, and want a good street turbo, then this is your turbo. Full boost should be right around 3100-3200rpms with a .63 A/R turbine housing. On our test cars, we've pulled over 420whp on pump gas at 23psi. The maximum boost is around 31-32psi where we have seen 500whp. If these numbers are big enough for you, then look no further and order a 50 trim. Its a $300 option because it is a custom built turbo, but well worth it.
57 Trim: The 57 trim is not a turbo we really recommend. Its basically a less efficient 50 trim. If you want something that spools faster than a 60, then get a 50 trim. If you want a bit more power, get a 60 trim. If you think you need a 57 trim because some other guy told you it was the best wheel out there, you can convince us to sell you one. (It would be the same price as the base kit.)
60 trim: Slightly larger than a 50 trim and will support another 10-25hp. The turbo is slightly laggier than the 50 trim so full boost is around 3200-3300. The turbo wiill make support a hair over 30psi and also a good street turbo. Below 20psi, at the same boost, a 50 trim will make more power, but at higher levels, the 60 trim has a slight edge.
60-1: Now were getting into the big turbos. A 60-1 will make upper 500whp, support well into the 30s, and be a nasty turbo. Full boost is around 3400-3500 in a .63 A/R turbine housing. This is a good in-between turbo. Not huge, but not small. Good blend of street and race. (Darksun note: Mine with a ceramic bearing option was spooling about 3200-3300 in 3rd gear.)
GT40/T350 (Smaller then small child SU Mark has trapped under his hood) This is a big turbo. Mid to upper 600hp is possible. Full boost around 3600-3700. The stage 5 turbine wheel is needed on this turbo to get all the air out. Its not needed on the smaller turbos, and will just add unwanted lag to the smaller ones. The smaller ones operate at an acceptable backpressure ratio with a stage 3 . This big bad boy on the other hand, flows so much air, that a stage 5 wheel is needed. This is for someone wanting to run 10s. This combination can be used on a street car, but the additional lag is not that fun, then again, the additional power may bring a smile to your face. You can run well over 35psi on this turbo. Big injectors are needed; minimum 750cc.
There are plenty of other options we can do for you. If you want a T61, T67, or even bigger, we can do it. We also offer a polished compressor housing ($100) as well as polishing the stainless steel heat shield($50). We are now offering ceramic coating to the manifold, turbine housing, o2 housing, and dump tube for those who want the ultra 'bling' setup for an additional $400. Polishing and ceramic coating may add additional build time to your order.
Includes: AGP T3 manifold, Turbonetics Evolution wastegate, dump tube, AGP 3147 turbo in a .63 A/R T31 turbine housing, 2.5" to 3" O2 housing, oil feed and drain lines, gaskets, nuts and bolts, Stainless Steel heatshield, overflow bottle. Available turbine housings - .48, .63, .82. Optional turbine wheels - 76 trim T31, 76 trim T350."
Ok for those who need a visual here's a sizing chart from Garrett on there turbos with a displacement size and a minim maximum you should be using the turbo for power wise
SU Mark. Your my boy but you were about 10whp away from getting a turbo intervention done on your ass.
As for the RR boys the T67 turbo they are using claiming it spools at 4200 on our 2.3 liter motor with no cam but...
In fo wise it's is a Mitsu turbo heres just a size visual
Personally I've seen that turbo do 800's at 40-42 Psi on a multi color primer door "whap whap" civic on the dyno. RR IS going to get a turbo intervention but since its actually a customers car blame may not be completely on them. Some times it's the whole "It's what the customer wants" thing happening.
Now for a reality check here is just a random thread back from 0 ****ing 6 of srt-4 guys nonchalantly talking about which turbo to use a GT40 or a T67
Gt40 ???? - SRT Forums - SRT4, SRT6, SRT8, SRT10 & Dodge Forum
Even when they talk about holding back for the sake of a stock motor the lowest HP cap they talk about is 450 whp.
And now for just random turbo information taken form a SUbie site. This applies to SUBies but the numbers are a bit lower for the turbos and more realistic
( Warning alot of info)
" Wink What Turbo should I get?? Read this before asking...
Got bored so I'm "Stealing" Turbo Information from other sites and compilng it here..
Mitsubishi TD04L-13T ( my friend makes 330whp MAXED out on this one at 28 psi. SRt-4 guys get to about 300-315)
(390cfm at 14.7psi, 200-275whp, Bolt-On)
This is the standard equipment turbocharger used on the USDM Subaru Impreza WRX. It can be found on all the current model years from 2002-2007.
Expect to achieve full boost with the proper mods and a quality tune between 2500-3000rpms.
Blouch Upgrade
Deadbolt Upgrade
Forced Performance Upgrade (490cfm at 18.0psi)
IHI VF10
This is the standard equipment turbocharger used on the USDM Legacy 4EAT MY91-94. No other information known at this time.
IHI VF11
This is the standard equipment turbocharger used on the USDM Legacy 5MT MY91-94. No other information known at this time.
IHI VF12
This is the standard equipment turbocharger used on the JDM Legacy RS MY89-93. No other information known at this time.
IHI VF13
This is the standard equipment primary turbocharger used on the JDM Legacy MY93-95. No other information known at this time.
IHI VF14
This is the standard equipment secondary turbocharger used on the JDM Legacy MY93-95. No other information known at this time.
IHI VF18
This is the standard equipment primary turbocharger used on the JDM Legacy MY96. No other information known at this time.
IHI VF19
This is the standard equipment secondary turbocharger used on the JDM Legacy MY96. No other information known at this time.
IHI VF20
This is the standard equipment turbocharger used on the JDM Legacy MY97. No other information known at this time.
IHI VF22
(490cfm at 18.0psi, 250-325whp, Bolt-On)
This is the standard equipment turbocharger used on the JDM V3 Subaru Impreza WRX and optional on the JDM Subaru Impreza WRX STi 22b. Of all the IHI models, the VF22 has the largest potential for peak horsepower, and is capable of supporting the highest boost levels. It is capable of running up to 25 psi. The VF22 is a roller bearing turbo that utilizes the P20 exhaust housing.
Expect to achieve full boost with the proper mods and a quality tune between 3200-3700rpms. 2002-2005 WRX owners will need fuel upgrades for this turbocharger and proper engine management is highly recommended for all vehicles.
IHI VF23
(388cfm at 18psi, 250-325whp, Bolt-On)
This is the standard equipment turbocharger used on the JDM Subaru Impreza WRX STi 22b. The VF23 is a ball bearing turbocharger that utilizes the P20 exhaust housing like the VF22. This housing is mated with the smaller compressor housing of the VF24 for fast response and excellent low and mid-range performance. It does not have the same top end power of the VF22, but spools up slightly quicker.
Expect to achieve full boost with the proper mods and a quality tune between 2800-3300rpms. 2002-2005 WRX owners will need fuel upgrades for this turbocharger and proper engine management is highly recommended for all vehicles.
IHI VF24
(425cfm at 18psi, 250-325whp, Bolt-On)
This is the standard equipment turbocharger used on the JDM V4 Subaru Impreza WRX STi. This turbo shares its compressor housing with the VF23, however, this housing is mated with a smaller (P18) exhaust side. The smaller characteristics of this turbo allow it to provide ample bottom end power and quick spool. This turbo is very popular for Imprezas with automatic transmissions and Group-N rally cars.
Expect to achieve full boost with the proper mods and a quality tune between 2800-3300rpms. 2002-2005 WRX owners will need fuel upgrades for this turbocharger and proper engine management is highly recommended for all vehicles.
IHI VF25
This is the standard equipment primary turbocharger used on the JDM Legacy B4. Utilizes a thrust-bearing design and a P12 exhaust housing. No other information known at this time.
IHI VF26
(400cfm at 18psi)
This is the standard equipment primary turbocharger used on the JDM Legacy B4. Utilizes a divided thrust-bearing design and a B14 exhaust housing. No other information known at this time.
IHI VF27
(420cfm at 18psi)
This is the standard equipment secondary turbocharger used on the JDM Legacy. Utilizes a ball-bearing design and a P18 exhaust housing. No other information known at this time.
IHI VF28
(425cfm at 18psi, 250-325whp, Bolt-On)
This is the standard equipment turbocharger used on the JDM V5 Subaru Impreza WRX STi.
Expect to achieve full boost with the proper mods and a quality tune between 2800-3300rpms. 2002-2005 WRX owners will need fuel upgrades for this turbocharger and proper engine management is highly recommended for all vehicles.
IHI VF29
(425cfm at 18psi, 250-325whp, Bolt-On)
This is the standard equipment turbocharger on the JDM V6 Subaru Impreza WRX STi. The VF29 is nearly identical to the VF24, with the same compressor and exhaust housings. However, the compressor wheel in the VF29 has been changed slightly. The changes made to the compressor wheel in this model are generally viewed as improvements, and as such, this unit is typically chosen over the VF24. Has a different location for the pressure hose on the wastegate actuator.
Expect to achieve full boost with the proper mods and a quality tune between 2900-3300rpms. 2002-2005 WRX owners will need fuel upgrades for this turbocharger and proper engine management is highly recommended for all vehicles.
IHI VF30
(460cfm at 18psi, 250-325whp, Bolt-On)
This is the standard equipment turbocharger used on the JDM V7 Subaru Impreza WRX STi. The VF30 is a thrust-bearing turbo that utilizes the P18 exhaust housing of a VF24 and the compressor housing sized between a VF23 and a VF22.
Expect to achieve full boost with the proper mods and a quality tune between 3000-3500rpms. 2002-2005 WRX owners will need fuel upgrades for this turbocharger and proper engine management is highly recommended for all vehicles.
IHI VF31
Utilizes a P11 exhaust housing. No other information known at this time.
IHI VF32
This is the standard equipment primary turbocharger used on the JDM Legacy. It utilizes a ball-bearing design. No other information known at this time.
IHI VF33
This is the standard equipment primary turbocharger used on the JDM Legacy. It utilizes a P11 exhaust housing and a divided thrust-bearing design. No other information known at this time.
IHI VF34
(460cfm at 18psi, 250-325whp, Bolt-On)
This is the standard equipment turbocharger used on the JDM V7 Subaru Impreza WRX STi Spec-C. The VF34 is nearly identical to the VF30 but has improved spool up due to its roller bearing design. It also utilizes a P18 exhaust housing.
Expect to achieve full boost with the proper mods and a quality tune between 3000-3500rpms. 2002-2005 WRX owners will need fuel upgrades for this turbocharger and proper engine management is highly recommended for all vehicles.
IHI VF35
(425cfm, 250-325whp, Bolt-On)
This is the standard equipment turbocharger used on the JDM Subaru Impreza WRX. The VF35 is similar to the VF34. It utilizes the same compressor housing and the same compressor inducer size. The differences are in the divided thrust-bearing design and the P15 exhaust housing. This allows the VF35 to spool slightly quicker than the VF34 at the cost of less top-end performance.
Expect to achieve full boost with the proper mods and a quality tune between 2800-3300rpms. 2002-2005 WRX owners will need fuel upgrades for this turbocharger and proper engine management is highly recommended for all vehicles.
IHI VF36
(430cfm, 250-325whp, Modification Required)
This is the standard equipment turbocharger used on the JDM V8-V9 Subaru Impreza WRX STI Spec-C Type RA. The VF36 is a twin-scroll turbocharger that utilizes a ball bearing design, a P25 exhaust housing, and Titanium (possibly TiAl?) compressor wheel for improved spool. It is essentially a fast spooling VF34.
Expect to achieve full boost with the proper mods and a quality tune between 2800-3300rpms. 2002-2005 WRX owners will need fuel upgrades for this turbocharger and proper engine management is highly recommended for all vehicles.
IHI VF37
(430cfm, 250-325whp, Modification Required)
This is the standard equipment turbocharger used on the JDM V8-V9 Subaru Impreza WRX STI. The VF37 is a twin-scroll turbocharger that utilizes a thrust bearing design and a P25 exhaust housing. It is essentially a fast spooling VF30.
Expect to achieve full boost with the proper mods and a quality tune between 2800-3300rpms. 2002-2005 WRX owners will need fuel upgrades for this turbocharger and proper engine management is highly recommended for all vehicles.
IHI VF38
The VF38 is a twin-scroll that utilizes a Titanium turbine and shaft. This turbocharger yields tremendous spool-up but offers less top-end than the VF36/VF37. The spool capabilities of this turbo are demonstrated on the JDM Legacy GT, which reaches peak torque at 2400RPM.
IHI VF39
(250-325whp, Bolt-On)
This is the standard equipment turbocharger used on the USDM Subaru Impreza WRX STI. It can be found on all model years from 2004-2006. The VF39 utilizes a thrust bearing design and the P18 exhaust housing.
Expect to achieve full boost with the proper mods and a quality tune between 3000-3500rpms. 2002-2005 WRX owners will need fuel upgrades for this turbocharger and proper engine management is highly recommended for all vehicles that utilize this turbo aftermarket. Though they are prone to cracking, VF39’s can be had for very cheap if bought used.
IHI VF39
Aspect ratio 18
Turbine Impeller Dia ID 48mm/ OD 53mm, 11 blades
Compressor Impeller Dia 46.48mm/60mm, 6+6 blades
Equipped with compressor blade sealing
Wastegate port 25mm dia
WG Port open 77.7 kPa @ 2mm, 89.9 @ 4mm
IHI VF40
This is the standard equipment turbocharger used on the USDM Subaru Legacy GT. It can be found on all the current model years from 2005-2006.
Deadbolt Upgrade
IHI VF41
This is the standard equipment turbocharger used on the JDM Subaru Forester STI. It utilizes a P18 exhaust housing.
IHI VF42
This is the standard equipment turbocharger used on the JDM Subaru Impreza WRX STi S203 and S204. The VF42 features a twin-scroll design with a slightly larger compressor than the VF36/VF37 turbos and different turbine design (more blades). The VF42 is a roller-bearing turbo and is similar in size to the VF22 turbo, but the twin-scroll exhaust housing yields faster spool-up and a superior top-end.
IHI VF43
(250-325whp, Bolt-On)
This is the standard equipment turbocharger used on the MY07 USDM Subaru Impreza WRX STI. It can be found on both base STI's and STI Limited's. The VF43 utilizes a thrust bearing design and the P18 exhaust housing. The difference between the VF43 and the VF39 used previously on STI's is the size of the wastegate. The VF43 has a larger wastegate designed to reduce boost creep issues.
Expect to achieve full boost with the proper mods and a quality tune between 3000-3500rpms. 2002-2005 WRX owners will need fuel upgrades for this turbocharger and proper engine management is highly recommended for all vehicles that utilize this turbo aftermarket.
IHI VF46
This is the standard equipment turbocharger used on the USDM Subaru Legacy GT MY07. The VF46 utilizes a new five-arc scroll design to improve low and midrange performance over the previous VF40.
Forced Performance Standard 16G
(510cfm, 275-330whp, Bolt-On)
This water cooled direct fit TD05H-16G-7cm2 turbocharger has a compressor flow rating of 510cfm and an unheard of compressor efficiency of 77%! This makes it the perfect low-cost easy install option for your 330whp 2.0 Subaru project.
The inlet and outlet flanges of the turbocharger are a perfect match for the stock flanges and high quality carbon steel studs are included so you don't have to scramble for hardware during installation.
The compressor inlet of the turbocharger is 2.4", so it is directly compatible with the factory air inlet tube and doesn't require expensive aftermarket intake tubes to install. The 2.4" inlet is ASME spec bell machined to maximize laminar flow into the compressor wheel to reduce inlet turbulence and improve compressor efficiency.
The FP16G comes fitted with brand new coolant lines and an 8psi wastegate actuator. The oil inlet thread is 10mm x 1.5mm just like stock, the water threads are 14mm x 1.5, and the oil drain flange is the same size and bolt pattern as the factory TD04, TD05, and VF series turbochargers allowing the use of any of these oil drain tubes.
Expect to achieve full boost with the proper mods and a quality tune between 3200-3700rpms. 2002-2005 WRX owners will need fuel upgrades for this turbocharger and proper engine management is highly recommended for all vehicles.
Forced Performance Big16G
(550cfm, 36 lb/min, 275-360whp, Bolt-On)
FP doesn’t have specific text for their Big16G: This water cooled direct fit TD05H-16G-7cm2 turbocharger has a compressor flow rating of 510cfm and an unheard of compressor efficiency of 77%! This makes it the perfect low-cost easy install option for your 330whp 2.0 Subaru project.
The inlet and outlet flanges of the turbocharger are a perfect match for the stock flanges and high quality carbon steel studs are included so you don't have to scramble for hardware during installation.
The compressor inlet of the turbocharger is 2.4", so it is directly compatible with the factory air inlet tube and doesn't require expensive aftermarket intake tubes to install. The 2.4" inlet is ASME spec bell machined to maximize laminar flow into the compressor wheel to reduce inlet turbulence and improve compressor efficiency.
The FP16G comes fitted with brand new coolant lines and an 8psi wastegate actuator. The oil inlet thread is 10mm x 1.5mm just like stock, the water threads are 14mm x 1.5, and the oil drain flange is the same size and bolt pattern as the factory TD04, TD05, and VF series turbochargers allowing the use of any of these oil drain tubes.
Expect to achieve full boost with the proper mods and a quality tune between 3200-3700rpms. 2002-2005 WRX owners will need fuel upgrades for this turbocharger and proper engine management is highly recommended for all vehicles.
Forced Performance Evo3 16G
(575cfm, 275-375whp, Bolt-On)
FP doesn’t have specific text for their Evo3 16G: This water cooled direct fit TD05H-16G-7cm2 turbocharger has a compressor flow rating of 510cfm and an unheard of compressor efficiency of 77%! This makes it the perfect low-cost easy install option for your 330whp 2.0 Subaru project.
The inlet and outlet flanges of the turbocharger are a perfect match for the stock flanges and high quality carbon steel studs are included so you don't have to scramble for hardware during installation.
The compressor inlet of the turbocharger is 2.4", so it is directly compatible with the factory air inlet tube and doesn't require expensive aftermarket intake tubes to install. The 2.4" inlet is ASME spec bell machined to maximize laminar flow into the compressor wheel to reduce inlet turbulence and improve compressor efficiency.
The FP16G comes fitted with brand new coolant lines and an 8psi wastegate actuator. The oil inlet thread is 10mm x 1.5mm just like stock, the water threads are 14mm x 1.5, and the oil drain flange is the same size and bolt pattern as the factory TD04, TD05, and VF series turbochargers allowing the use of any of these oil drain tubes.
Expect to achieve full boost with the proper mods and a quality tune between 3200-3700rpms. 2002-2005 WRX owners will need fuel upgrades for this turbocharger and proper engine management is highly recommended for all vehicles.
Forced Performance 18G
(605cfm, 275-390whp, Bolt-On)
FP doesn’t have specific text for their 18G: This water cooled direct fit TD05H-16G-7cm2 turbocharger has a compressor flow rating of 510cfm and an unheard of compressor efficiency of 77%! This makes it the perfect low-cost easy install option for your 330whp 2.0 Subaru project.
The inlet and outlet flanges of the turbocharger are a perfect match for the stock flanges and high quality carbon steel studs are included so you don't have to scramble for hardware during installation.
The compressor inlet of the turbocharger is 2.4", so it is directly compatible with the factory air inlet tube and doesn't require expensive aftermarket intake tubes to install. The 2.4" inlet is ASME spec bell machined to maximize laminar flow into the compressor wheel to reduce inlet turbulence and improve compressor efficiency.
The FP16G comes fitted with brand new coolant lines and an 8psi wastegate actuator. The oil inlet thread is 10mm x 1.5mm just like stock, the water threads are 14mm x 1.5, and the oil drain flange is the same size and bolt pattern as the factory TD04, TD05, and VF series turbochargers allowing the use of any of these oil drain tubes.
Expect to achieve full boost with the proper mods and a quality tune between 3300-3800rpms. 2002-2005 WRX owners will need fuel upgrades for this turbocharger and proper engine management is highly recommended for all vehicles.
Forced Performance 20G
(44 lb/min, 330-440whp, Bolt-On)
In typical Forced Performance fashion, a new breed of high horsepower turbos are now available for the Subaru WRX and STI in bolt on configuration. The FP2006 or FPWRX20G features a 44lb minute compressor and huge TDO6 turbine wheel. The FPWRX20G typically produces 350-380WHP with astounding spool up response and efficiency.
The FPWRX20G’s 7cm ported exhaust housing retains the stock Subaru flange patterns. An internal wastegate is standard on the FP20G with an adjustable 15psi high pressure actuator and is capable of filling the Subaru motor with over 25 psi of boost if called upon. Install is simple and straightforward, allowing use of existing exhaust and intercooler components.
This 20g turbo offers similar pump gas performance to our FPGreen model, while reducing the boost threshold by a couple hundred RPM due to its slightly smaller compressor wheel. These slightly smaller lower interia rotating components benefit applications where pump gas is the primary fuel used and boost pressures do not exceed 22psi. Applications requiring higher power output above 22psi would select the FPGreen model over this 20G.
This unit operates very effectively in the 18-25psi range on the 2.5 STi engine, but is slightly lower in maximum power output on race gas (boost above 22psi) compared to our FPGreen model. Many daily driver applications will find that the slight reduction in boost threshold is more than a fair trade for the slightly lower power output on race gas that they never plan on running anyway.
Porting, new coolant lines and internal wastegate are already included in the price of this turbocharger and do not result in additional charges!
For pump gas applications we have added the option to select a larger 34mm wastegate flapper valve. This larger flapper valve increases the wastegate flow volume and allows boost to be set below 20psi dependably over the entire RPM range. Do not select this option if you intend to run race gas and boost pressure above 28psi.
Limited quantities of 8CM turbine housing are now in stock. To upgrade your turbo to the more powerful 8CM housing, please call your order in. There is a $100 fee for the upgrade to 8CM housing. 10/02/06
Expect to achieve full boost with the proper mods and a quality tune between 3500-4000rpms. Fuel upgrades for this turbocharger and proper engine management should be considered necessary for all vehicles.
Forced Performance Green
(49 lb/min, 350-490whp, Bolt-On)
In typical Forced Performance, fashion a new breed of high horsepower turbos are now available for the Subaru WRX and STI in bolt on configuration. The “FPGreen” features a 49lb minute compressor and huge TDO6 turbine wheel. The FPGreen typically produces 400-450 WHP with astounding spool up response and efficiency. The term "Green Model" or "Green turbo" are trademark protected terms used to describe this specific combination of turbocharger components which includes our proprietary thrust bearing system. Forced Performance designed, developed and manufactured this unique combination of parts. Forced Performance Inc. is the sole source for the "Green Model" turbocharger. Nothing beats the original.
The FPGreen’s 7cm ported exhaust housing retains the stock Subaru flange patterns. An internal wastegate is standard on the FPGreen with an adjustable 15psi high pressure actuator and is capable of filling the Subaru motor with over 30 psi of boost if called upon. Install is simple and straightforward, allowing use of existing exhaust and intercooler components. This turbo features a 2.4" compressor housing inlet as standard spec or an optional 3" cover can be selected for those intending to run 3" air inlet tubes such as the Perrin tube.
Like all Forced Performance Mitsubishi race turbos, the FPGreen is fitted with FP’s proprietary severe duty bearing system which increases surface area to deal with the loads of high boost pressure found in racing applications. No other vendor can offer this thrust bearing system. Forced Performance also carries stainless steel high flow oil feed lines to complete your installation.
For those of you that run 3" air inlet tubes for your turbochargers, we can now offer the FPGreen model with the 3" inlet compressor housing. This has shown to significantly reduce lag and deliver more whp by reducing the Page Ranking the compressor section must operate at to achieve a given boost pressure. The corresponding reduction in turbine backpressure is the key to this improvement.
For pump gas applications, we have added the option to select a larger 34mm wastegate flapper valve. This larger flapper valve increases the wastegate flow volume and allows boost to be set below 20psi dependably over the entire RPM range. Do not select this option if you intend to run race gas and boost pressure above 28psi.
Expect to achieve full boost with the proper mods and a quality tune between 3800-4300rpms. Fuel upgrades for this turbocharger and proper engine management should be considered necessary for all vehicles.
Forced Performance Red
(65 lb/min, 400-650whp, May Require Modification)
Internal wastegate is now a ZERO $$ option. That's right! If you want it internally gated, you can have it internally gated for FREE, Nada, Zip. For pump gas applications we have added the option to select a larger 34mm wastegate flapper valve. This larger flapper valve increases the wastegate flow volume and allows boost to be set below 20psi dependably over the entire RPM range. Do not select this option if you intend to run race gas and boost pressure above 28psi.
Perrin makes an intake tube that fits this.
This turbo can be special ordered with a dry bearing housing that allows you to eliminate the water connections to the turbo. The standard configuration uses a Subaru type water cooled bearing housing with both water connections on the same side of the CHRA.
The thread specifications for the wet housing are as follows: Oil inlet - 10mm x 1.5mm, Water in/out 14mm x 1.5 (same side).
Expect to achieve full boost with the proper mods and a quality tune between 4500-5000rpms. Fuel upgrades for this turbocharger and proper engine management should be considered necessary for all vehicles.
Turbochargers.com Big 16G
(550cfm, 275-350whp, Bolt-On)
This turbo includes all coolant and oil lines needed to bolt right on. Brand new, direct bolt-on turbo, with no oil or water line problems. We have seen cars go as fast as 12.70 with this turbo and supporting mods.
Expect to achieve full boost with the proper mods and a quality tune between 3300-3800rpms. 2002-2005 WRX owners will need fuel upgrades for this turbocharger and proper engine management is highly recommended for all vehicles.
posted by DarkSun280 over at mazdaspeedforums.org
''In light of recent talk of even bigger and bigger turbos being used on our platform I felt the need to put more info out there about turbo sizing in general. This original post will be up dated more and more as I have free time.
Honestly this is pointed more at Me, Su Mark, and the Race roots crew cause I got the rude awakening that my 60-1 was actually SLIGHTLY bigger then a standard gt35r. Some times you think you've done all your home work on some thing and months later you find out you haven't. I just want to add that when trying to size a turbo there are companies Like AGP you can call and ask them questions on sizing vs displacement and about your power goals if your ever Iffy on something.
Now on to the info.
So Lucky for us we a similar displacement to the srt-4 so much of their turbo info can apply to us if we ignore the DI, PI factor. This info is from AGP in regards to SRT-4's. Any of this info can be found by searching on the internet.
"50 trim: Good all around turbo. Spools fast, and will make great power. This turbo is perfect for those wanting to run lower boost, and those who run only pump gas. If you plan to run nothing but pump gas, and want a good street turbo, then this is your turbo. Full boost should be right around 3100-3200rpms with a .63 A/R turbine housing. On our test cars, we've pulled over 420whp on pump gas at 23psi. The maximum boost is around 31-32psi where we have seen 500whp. If these numbers are big enough for you, then look no further and order a 50 trim. Its a $300 option because it is a custom built turbo, but well worth it.
57 Trim: The 57 trim is not a turbo we really recommend. Its basically a less efficient 50 trim. If you want something that spools faster than a 60, then get a 50 trim. If you want a bit more power, get a 60 trim. If you think you need a 57 trim because some other guy told you it was the best wheel out there, you can convince us to sell you one. (It would be the same price as the base kit.)
60 trim: Slightly larger than a 50 trim and will support another 10-25hp. The turbo is slightly laggier than the 50 trim so full boost is around 3200-3300. The turbo wiill make support a hair over 30psi and also a good street turbo. Below 20psi, at the same boost, a 50 trim will make more power, but at higher levels, the 60 trim has a slight edge.
60-1: Now were getting into the big turbos. A 60-1 will make upper 500whp, support well into the 30s, and be a nasty turbo. Full boost is around 3400-3500 in a .63 A/R turbine housing. This is a good in-between turbo. Not huge, but not small. Good blend of street and race. (Darksun note: Mine with a ceramic bearing option was spooling about 3200-3300 in 3rd gear.)
GT40/T350 (Smaller then small child SU Mark has trapped under his hood) This is a big turbo. Mid to upper 600hp is possible. Full boost around 3600-3700. The stage 5 turbine wheel is needed on this turbo to get all the air out. Its not needed on the smaller turbos, and will just add unwanted lag to the smaller ones. The smaller ones operate at an acceptable backpressure ratio with a stage 3 . This big bad boy on the other hand, flows so much air, that a stage 5 wheel is needed. This is for someone wanting to run 10s. This combination can be used on a street car, but the additional lag is not that fun, then again, the additional power may bring a smile to your face. You can run well over 35psi on this turbo. Big injectors are needed; minimum 750cc.
There are plenty of other options we can do for you. If you want a T61, T67, or even bigger, we can do it. We also offer a polished compressor housing ($100) as well as polishing the stainless steel heat shield($50). We are now offering ceramic coating to the manifold, turbine housing, o2 housing, and dump tube for those who want the ultra 'bling' setup for an additional $400. Polishing and ceramic coating may add additional build time to your order.
Includes: AGP T3 manifold, Turbonetics Evolution wastegate, dump tube, AGP 3147 turbo in a .63 A/R T31 turbine housing, 2.5" to 3" O2 housing, oil feed and drain lines, gaskets, nuts and bolts, Stainless Steel heatshield, overflow bottle. Available turbine housings - .48, .63, .82. Optional turbine wheels - 76 trim T31, 76 trim T350."
Ok for those who need a visual here's a sizing chart from Garrett on there turbos with a displacement size and a minim maximum you should be using the turbo for power wise
SU Mark. Your my boy but you were about 10whp away from getting a turbo intervention done on your ass.
As for the RR boys the T67 turbo they are using claiming it spools at 4200 on our 2.3 liter motor with no cam but...
In fo wise it's is a Mitsu turbo heres just a size visual
Personally I've seen that turbo do 800's at 40-42 Psi on a multi color primer door "whap whap" civic on the dyno. RR IS going to get a turbo intervention but since its actually a customers car blame may not be completely on them. Some times it's the whole "It's what the customer wants" thing happening.
Now for a reality check here is just a random thread back from 0 ****ing 6 of srt-4 guys nonchalantly talking about which turbo to use a GT40 or a T67
Gt40 ???? - SRT Forums - SRT4, SRT6, SRT8, SRT10 & Dodge Forum
Even when they talk about holding back for the sake of a stock motor the lowest HP cap they talk about is 450 whp.
And now for just random turbo information taken form a SUbie site. This applies to SUBies but the numbers are a bit lower for the turbos and more realistic
( Warning alot of info)
" Wink What Turbo should I get?? Read this before asking...
Got bored so I'm "Stealing" Turbo Information from other sites and compilng it here..
Mitsubishi TD04L-13T ( my friend makes 330whp MAXED out on this one at 28 psi. SRt-4 guys get to about 300-315)
(390cfm at 14.7psi, 200-275whp, Bolt-On)
This is the standard equipment turbocharger used on the USDM Subaru Impreza WRX. It can be found on all the current model years from 2002-2007.
Expect to achieve full boost with the proper mods and a quality tune between 2500-3000rpms.
Blouch Upgrade
Deadbolt Upgrade
Forced Performance Upgrade (490cfm at 18.0psi)
IHI VF10
This is the standard equipment turbocharger used on the USDM Legacy 4EAT MY91-94. No other information known at this time.
IHI VF11
This is the standard equipment turbocharger used on the USDM Legacy 5MT MY91-94. No other information known at this time.
IHI VF12
This is the standard equipment turbocharger used on the JDM Legacy RS MY89-93. No other information known at this time.
IHI VF13
This is the standard equipment primary turbocharger used on the JDM Legacy MY93-95. No other information known at this time.
IHI VF14
This is the standard equipment secondary turbocharger used on the JDM Legacy MY93-95. No other information known at this time.
IHI VF18
This is the standard equipment primary turbocharger used on the JDM Legacy MY96. No other information known at this time.
IHI VF19
This is the standard equipment secondary turbocharger used on the JDM Legacy MY96. No other information known at this time.
IHI VF20
This is the standard equipment turbocharger used on the JDM Legacy MY97. No other information known at this time.
IHI VF22
(490cfm at 18.0psi, 250-325whp, Bolt-On)
This is the standard equipment turbocharger used on the JDM V3 Subaru Impreza WRX and optional on the JDM Subaru Impreza WRX STi 22b. Of all the IHI models, the VF22 has the largest potential for peak horsepower, and is capable of supporting the highest boost levels. It is capable of running up to 25 psi. The VF22 is a roller bearing turbo that utilizes the P20 exhaust housing.
Expect to achieve full boost with the proper mods and a quality tune between 3200-3700rpms. 2002-2005 WRX owners will need fuel upgrades for this turbocharger and proper engine management is highly recommended for all vehicles.
IHI VF23
(388cfm at 18psi, 250-325whp, Bolt-On)
This is the standard equipment turbocharger used on the JDM Subaru Impreza WRX STi 22b. The VF23 is a ball bearing turbocharger that utilizes the P20 exhaust housing like the VF22. This housing is mated with the smaller compressor housing of the VF24 for fast response and excellent low and mid-range performance. It does not have the same top end power of the VF22, but spools up slightly quicker.
Expect to achieve full boost with the proper mods and a quality tune between 2800-3300rpms. 2002-2005 WRX owners will need fuel upgrades for this turbocharger and proper engine management is highly recommended for all vehicles.
IHI VF24
(425cfm at 18psi, 250-325whp, Bolt-On)
This is the standard equipment turbocharger used on the JDM V4 Subaru Impreza WRX STi. This turbo shares its compressor housing with the VF23, however, this housing is mated with a smaller (P18) exhaust side. The smaller characteristics of this turbo allow it to provide ample bottom end power and quick spool. This turbo is very popular for Imprezas with automatic transmissions and Group-N rally cars.
Expect to achieve full boost with the proper mods and a quality tune between 2800-3300rpms. 2002-2005 WRX owners will need fuel upgrades for this turbocharger and proper engine management is highly recommended for all vehicles.
IHI VF25
This is the standard equipment primary turbocharger used on the JDM Legacy B4. Utilizes a thrust-bearing design and a P12 exhaust housing. No other information known at this time.
IHI VF26
(400cfm at 18psi)
This is the standard equipment primary turbocharger used on the JDM Legacy B4. Utilizes a divided thrust-bearing design and a B14 exhaust housing. No other information known at this time.
IHI VF27
(420cfm at 18psi)
This is the standard equipment secondary turbocharger used on the JDM Legacy. Utilizes a ball-bearing design and a P18 exhaust housing. No other information known at this time.
IHI VF28
(425cfm at 18psi, 250-325whp, Bolt-On)
This is the standard equipment turbocharger used on the JDM V5 Subaru Impreza WRX STi.
Expect to achieve full boost with the proper mods and a quality tune between 2800-3300rpms. 2002-2005 WRX owners will need fuel upgrades for this turbocharger and proper engine management is highly recommended for all vehicles.
IHI VF29
(425cfm at 18psi, 250-325whp, Bolt-On)
This is the standard equipment turbocharger on the JDM V6 Subaru Impreza WRX STi. The VF29 is nearly identical to the VF24, with the same compressor and exhaust housings. However, the compressor wheel in the VF29 has been changed slightly. The changes made to the compressor wheel in this model are generally viewed as improvements, and as such, this unit is typically chosen over the VF24. Has a different location for the pressure hose on the wastegate actuator.
Expect to achieve full boost with the proper mods and a quality tune between 2900-3300rpms. 2002-2005 WRX owners will need fuel upgrades for this turbocharger and proper engine management is highly recommended for all vehicles.
IHI VF30
(460cfm at 18psi, 250-325whp, Bolt-On)
This is the standard equipment turbocharger used on the JDM V7 Subaru Impreza WRX STi. The VF30 is a thrust-bearing turbo that utilizes the P18 exhaust housing of a VF24 and the compressor housing sized between a VF23 and a VF22.
Expect to achieve full boost with the proper mods and a quality tune between 3000-3500rpms. 2002-2005 WRX owners will need fuel upgrades for this turbocharger and proper engine management is highly recommended for all vehicles.
IHI VF31
Utilizes a P11 exhaust housing. No other information known at this time.
IHI VF32
This is the standard equipment primary turbocharger used on the JDM Legacy. It utilizes a ball-bearing design. No other information known at this time.
IHI VF33
This is the standard equipment primary turbocharger used on the JDM Legacy. It utilizes a P11 exhaust housing and a divided thrust-bearing design. No other information known at this time.
IHI VF34
(460cfm at 18psi, 250-325whp, Bolt-On)
This is the standard equipment turbocharger used on the JDM V7 Subaru Impreza WRX STi Spec-C. The VF34 is nearly identical to the VF30 but has improved spool up due to its roller bearing design. It also utilizes a P18 exhaust housing.
Expect to achieve full boost with the proper mods and a quality tune between 3000-3500rpms. 2002-2005 WRX owners will need fuel upgrades for this turbocharger and proper engine management is highly recommended for all vehicles.
IHI VF35
(425cfm, 250-325whp, Bolt-On)
This is the standard equipment turbocharger used on the JDM Subaru Impreza WRX. The VF35 is similar to the VF34. It utilizes the same compressor housing and the same compressor inducer size. The differences are in the divided thrust-bearing design and the P15 exhaust housing. This allows the VF35 to spool slightly quicker than the VF34 at the cost of less top-end performance.
Expect to achieve full boost with the proper mods and a quality tune between 2800-3300rpms. 2002-2005 WRX owners will need fuel upgrades for this turbocharger and proper engine management is highly recommended for all vehicles.
IHI VF36
(430cfm, 250-325whp, Modification Required)
This is the standard equipment turbocharger used on the JDM V8-V9 Subaru Impreza WRX STI Spec-C Type RA. The VF36 is a twin-scroll turbocharger that utilizes a ball bearing design, a P25 exhaust housing, and Titanium (possibly TiAl?) compressor wheel for improved spool. It is essentially a fast spooling VF34.
Expect to achieve full boost with the proper mods and a quality tune between 2800-3300rpms. 2002-2005 WRX owners will need fuel upgrades for this turbocharger and proper engine management is highly recommended for all vehicles.
IHI VF37
(430cfm, 250-325whp, Modification Required)
This is the standard equipment turbocharger used on the JDM V8-V9 Subaru Impreza WRX STI. The VF37 is a twin-scroll turbocharger that utilizes a thrust bearing design and a P25 exhaust housing. It is essentially a fast spooling VF30.
Expect to achieve full boost with the proper mods and a quality tune between 2800-3300rpms. 2002-2005 WRX owners will need fuel upgrades for this turbocharger and proper engine management is highly recommended for all vehicles.
IHI VF38
The VF38 is a twin-scroll that utilizes a Titanium turbine and shaft. This turbocharger yields tremendous spool-up but offers less top-end than the VF36/VF37. The spool capabilities of this turbo are demonstrated on the JDM Legacy GT, which reaches peak torque at 2400RPM.
IHI VF39
(250-325whp, Bolt-On)
This is the standard equipment turbocharger used on the USDM Subaru Impreza WRX STI. It can be found on all model years from 2004-2006. The VF39 utilizes a thrust bearing design and the P18 exhaust housing.
Expect to achieve full boost with the proper mods and a quality tune between 3000-3500rpms. 2002-2005 WRX owners will need fuel upgrades for this turbocharger and proper engine management is highly recommended for all vehicles that utilize this turbo aftermarket. Though they are prone to cracking, VF39’s can be had for very cheap if bought used.
IHI VF39
Aspect ratio 18
Turbine Impeller Dia ID 48mm/ OD 53mm, 11 blades
Compressor Impeller Dia 46.48mm/60mm, 6+6 blades
Equipped with compressor blade sealing
Wastegate port 25mm dia
WG Port open 77.7 kPa @ 2mm, 89.9 @ 4mm
IHI VF40
This is the standard equipment turbocharger used on the USDM Subaru Legacy GT. It can be found on all the current model years from 2005-2006.
Deadbolt Upgrade
IHI VF41
This is the standard equipment turbocharger used on the JDM Subaru Forester STI. It utilizes a P18 exhaust housing.
IHI VF42
This is the standard equipment turbocharger used on the JDM Subaru Impreza WRX STi S203 and S204. The VF42 features a twin-scroll design with a slightly larger compressor than the VF36/VF37 turbos and different turbine design (more blades). The VF42 is a roller-bearing turbo and is similar in size to the VF22 turbo, but the twin-scroll exhaust housing yields faster spool-up and a superior top-end.
IHI VF43
(250-325whp, Bolt-On)
This is the standard equipment turbocharger used on the MY07 USDM Subaru Impreza WRX STI. It can be found on both base STI's and STI Limited's. The VF43 utilizes a thrust bearing design and the P18 exhaust housing. The difference between the VF43 and the VF39 used previously on STI's is the size of the wastegate. The VF43 has a larger wastegate designed to reduce boost creep issues.
Expect to achieve full boost with the proper mods and a quality tune between 3000-3500rpms. 2002-2005 WRX owners will need fuel upgrades for this turbocharger and proper engine management is highly recommended for all vehicles that utilize this turbo aftermarket.
IHI VF46
This is the standard equipment turbocharger used on the USDM Subaru Legacy GT MY07. The VF46 utilizes a new five-arc scroll design to improve low and midrange performance over the previous VF40.
Forced Performance Standard 16G
(510cfm, 275-330whp, Bolt-On)
This water cooled direct fit TD05H-16G-7cm2 turbocharger has a compressor flow rating of 510cfm and an unheard of compressor efficiency of 77%! This makes it the perfect low-cost easy install option for your 330whp 2.0 Subaru project.
The inlet and outlet flanges of the turbocharger are a perfect match for the stock flanges and high quality carbon steel studs are included so you don't have to scramble for hardware during installation.
The compressor inlet of the turbocharger is 2.4", so it is directly compatible with the factory air inlet tube and doesn't require expensive aftermarket intake tubes to install. The 2.4" inlet is ASME spec bell machined to maximize laminar flow into the compressor wheel to reduce inlet turbulence and improve compressor efficiency.
The FP16G comes fitted with brand new coolant lines and an 8psi wastegate actuator. The oil inlet thread is 10mm x 1.5mm just like stock, the water threads are 14mm x 1.5, and the oil drain flange is the same size and bolt pattern as the factory TD04, TD05, and VF series turbochargers allowing the use of any of these oil drain tubes.
Expect to achieve full boost with the proper mods and a quality tune between 3200-3700rpms. 2002-2005 WRX owners will need fuel upgrades for this turbocharger and proper engine management is highly recommended for all vehicles.
Forced Performance Big16G
(550cfm, 36 lb/min, 275-360whp, Bolt-On)
FP doesn’t have specific text for their Big16G: This water cooled direct fit TD05H-16G-7cm2 turbocharger has a compressor flow rating of 510cfm and an unheard of compressor efficiency of 77%! This makes it the perfect low-cost easy install option for your 330whp 2.0 Subaru project.
The inlet and outlet flanges of the turbocharger are a perfect match for the stock flanges and high quality carbon steel studs are included so you don't have to scramble for hardware during installation.
The compressor inlet of the turbocharger is 2.4", so it is directly compatible with the factory air inlet tube and doesn't require expensive aftermarket intake tubes to install. The 2.4" inlet is ASME spec bell machined to maximize laminar flow into the compressor wheel to reduce inlet turbulence and improve compressor efficiency.
The FP16G comes fitted with brand new coolant lines and an 8psi wastegate actuator. The oil inlet thread is 10mm x 1.5mm just like stock, the water threads are 14mm x 1.5, and the oil drain flange is the same size and bolt pattern as the factory TD04, TD05, and VF series turbochargers allowing the use of any of these oil drain tubes.
Expect to achieve full boost with the proper mods and a quality tune between 3200-3700rpms. 2002-2005 WRX owners will need fuel upgrades for this turbocharger and proper engine management is highly recommended for all vehicles.
Forced Performance Evo3 16G
(575cfm, 275-375whp, Bolt-On)
FP doesn’t have specific text for their Evo3 16G: This water cooled direct fit TD05H-16G-7cm2 turbocharger has a compressor flow rating of 510cfm and an unheard of compressor efficiency of 77%! This makes it the perfect low-cost easy install option for your 330whp 2.0 Subaru project.
The inlet and outlet flanges of the turbocharger are a perfect match for the stock flanges and high quality carbon steel studs are included so you don't have to scramble for hardware during installation.
The compressor inlet of the turbocharger is 2.4", so it is directly compatible with the factory air inlet tube and doesn't require expensive aftermarket intake tubes to install. The 2.4" inlet is ASME spec bell machined to maximize laminar flow into the compressor wheel to reduce inlet turbulence and improve compressor efficiency.
The FP16G comes fitted with brand new coolant lines and an 8psi wastegate actuator. The oil inlet thread is 10mm x 1.5mm just like stock, the water threads are 14mm x 1.5, and the oil drain flange is the same size and bolt pattern as the factory TD04, TD05, and VF series turbochargers allowing the use of any of these oil drain tubes.
Expect to achieve full boost with the proper mods and a quality tune between 3200-3700rpms. 2002-2005 WRX owners will need fuel upgrades for this turbocharger and proper engine management is highly recommended for all vehicles.
Forced Performance 18G
(605cfm, 275-390whp, Bolt-On)
FP doesn’t have specific text for their 18G: This water cooled direct fit TD05H-16G-7cm2 turbocharger has a compressor flow rating of 510cfm and an unheard of compressor efficiency of 77%! This makes it the perfect low-cost easy install option for your 330whp 2.0 Subaru project.
The inlet and outlet flanges of the turbocharger are a perfect match for the stock flanges and high quality carbon steel studs are included so you don't have to scramble for hardware during installation.
The compressor inlet of the turbocharger is 2.4", so it is directly compatible with the factory air inlet tube and doesn't require expensive aftermarket intake tubes to install. The 2.4" inlet is ASME spec bell machined to maximize laminar flow into the compressor wheel to reduce inlet turbulence and improve compressor efficiency.
The FP16G comes fitted with brand new coolant lines and an 8psi wastegate actuator. The oil inlet thread is 10mm x 1.5mm just like stock, the water threads are 14mm x 1.5, and the oil drain flange is the same size and bolt pattern as the factory TD04, TD05, and VF series turbochargers allowing the use of any of these oil drain tubes.
Expect to achieve full boost with the proper mods and a quality tune between 3300-3800rpms. 2002-2005 WRX owners will need fuel upgrades for this turbocharger and proper engine management is highly recommended for all vehicles.
Forced Performance 20G
(44 lb/min, 330-440whp, Bolt-On)
In typical Forced Performance fashion, a new breed of high horsepower turbos are now available for the Subaru WRX and STI in bolt on configuration. The FP2006 or FPWRX20G features a 44lb minute compressor and huge TDO6 turbine wheel. The FPWRX20G typically produces 350-380WHP with astounding spool up response and efficiency.
The FPWRX20G’s 7cm ported exhaust housing retains the stock Subaru flange patterns. An internal wastegate is standard on the FP20G with an adjustable 15psi high pressure actuator and is capable of filling the Subaru motor with over 25 psi of boost if called upon. Install is simple and straightforward, allowing use of existing exhaust and intercooler components.
This 20g turbo offers similar pump gas performance to our FPGreen model, while reducing the boost threshold by a couple hundred RPM due to its slightly smaller compressor wheel. These slightly smaller lower interia rotating components benefit applications where pump gas is the primary fuel used and boost pressures do not exceed 22psi. Applications requiring higher power output above 22psi would select the FPGreen model over this 20G.
This unit operates very effectively in the 18-25psi range on the 2.5 STi engine, but is slightly lower in maximum power output on race gas (boost above 22psi) compared to our FPGreen model. Many daily driver applications will find that the slight reduction in boost threshold is more than a fair trade for the slightly lower power output on race gas that they never plan on running anyway.
Porting, new coolant lines and internal wastegate are already included in the price of this turbocharger and do not result in additional charges!
For pump gas applications we have added the option to select a larger 34mm wastegate flapper valve. This larger flapper valve increases the wastegate flow volume and allows boost to be set below 20psi dependably over the entire RPM range. Do not select this option if you intend to run race gas and boost pressure above 28psi.
Limited quantities of 8CM turbine housing are now in stock. To upgrade your turbo to the more powerful 8CM housing, please call your order in. There is a $100 fee for the upgrade to 8CM housing. 10/02/06
Expect to achieve full boost with the proper mods and a quality tune between 3500-4000rpms. Fuel upgrades for this turbocharger and proper engine management should be considered necessary for all vehicles.
Forced Performance Green
(49 lb/min, 350-490whp, Bolt-On)
In typical Forced Performance, fashion a new breed of high horsepower turbos are now available for the Subaru WRX and STI in bolt on configuration. The “FPGreen” features a 49lb minute compressor and huge TDO6 turbine wheel. The FPGreen typically produces 400-450 WHP with astounding spool up response and efficiency. The term "Green Model" or "Green turbo" are trademark protected terms used to describe this specific combination of turbocharger components which includes our proprietary thrust bearing system. Forced Performance designed, developed and manufactured this unique combination of parts. Forced Performance Inc. is the sole source for the "Green Model" turbocharger. Nothing beats the original.
The FPGreen’s 7cm ported exhaust housing retains the stock Subaru flange patterns. An internal wastegate is standard on the FPGreen with an adjustable 15psi high pressure actuator and is capable of filling the Subaru motor with over 30 psi of boost if called upon. Install is simple and straightforward, allowing use of existing exhaust and intercooler components. This turbo features a 2.4" compressor housing inlet as standard spec or an optional 3" cover can be selected for those intending to run 3" air inlet tubes such as the Perrin tube.
Like all Forced Performance Mitsubishi race turbos, the FPGreen is fitted with FP’s proprietary severe duty bearing system which increases surface area to deal with the loads of high boost pressure found in racing applications. No other vendor can offer this thrust bearing system. Forced Performance also carries stainless steel high flow oil feed lines to complete your installation.
For those of you that run 3" air inlet tubes for your turbochargers, we can now offer the FPGreen model with the 3" inlet compressor housing. This has shown to significantly reduce lag and deliver more whp by reducing the Page Ranking the compressor section must operate at to achieve a given boost pressure. The corresponding reduction in turbine backpressure is the key to this improvement.
For pump gas applications, we have added the option to select a larger 34mm wastegate flapper valve. This larger flapper valve increases the wastegate flow volume and allows boost to be set below 20psi dependably over the entire RPM range. Do not select this option if you intend to run race gas and boost pressure above 28psi.
Expect to achieve full boost with the proper mods and a quality tune between 3800-4300rpms. Fuel upgrades for this turbocharger and proper engine management should be considered necessary for all vehicles.
Forced Performance Red
(65 lb/min, 400-650whp, May Require Modification)
Internal wastegate is now a ZERO $$ option. That's right! If you want it internally gated, you can have it internally gated for FREE, Nada, Zip. For pump gas applications we have added the option to select a larger 34mm wastegate flapper valve. This larger flapper valve increases the wastegate flow volume and allows boost to be set below 20psi dependably over the entire RPM range. Do not select this option if you intend to run race gas and boost pressure above 28psi.
Perrin makes an intake tube that fits this.
This turbo can be special ordered with a dry bearing housing that allows you to eliminate the water connections to the turbo. The standard configuration uses a Subaru type water cooled bearing housing with both water connections on the same side of the CHRA.
The thread specifications for the wet housing are as follows: Oil inlet - 10mm x 1.5mm, Water in/out 14mm x 1.5 (same side).
Expect to achieve full boost with the proper mods and a quality tune between 4500-5000rpms. Fuel upgrades for this turbocharger and proper engine management should be considered necessary for all vehicles.
Turbochargers.com Big 16G
(550cfm, 275-350whp, Bolt-On)
This turbo includes all coolant and oil lines needed to bolt right on. Brand new, direct bolt-on turbo, with no oil or water line problems. We have seen cars go as fast as 12.70 with this turbo and supporting mods.
Expect to achieve full boost with the proper mods and a quality tune between 3300-3800rpms. 2002-2005 WRX owners will need fuel upgrades for this turbocharger and proper engine management is highly recommended for all vehicles.
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