True plug and play MS

[vabreaker20011]

wish this was out last year when i had all the problems with my MS i picked up!!! looks great might pick one up for the 323 gtx

[pikespeakgtx]

As far as requirements go for the computer needed to tune the MS1, can you run Linux or Windows 95/98/2000 or do you need XP?

We have a 800mhz Pentium 3 with 64megs of ram currently running Linux. Will this work out? Do we need to change OS or do we need a better all around Computer?

[stylingtwagon]

ya i dont want to look back 3 pages lex did u figure out a avarage price yet ?
how easy are these things to ajust from lets say like smog check time to drag strip time i dont know alot about theses so please enlighten me ?

[Lex]

As far as requirements go for the computer needed to tune the MS1, can you run Linux or Windows 95/98/2000 or do you need XP?

We have a 800mhz Pentium 3 with 64megs of ram currently running Linux. Will this work out? Do we need to change OS or do we need a better all around Computer?

I believe you can with some tuning software solutions but with Megatune which is what I include with my kits, a Windows system is required - preferably not Vista as it does some funky stuff with the program files. The laptop is just fine - I used a PII with WIN2k to tune with no issues. Actually, having a laptop with a native serial port will save you a lot of trouble. If you have to use USB it's best to go with an older laptop with USB 1.1 ports because most Serial-USB converters are flaky.

More info on megatune:

http://www.megamanual.com/megatune.htm#mt

As for price, no exact price yet (that will come around the end of the month as promised) but it will be around 500 for the basic system. You will be able to tune your car as desired be it for the strip or emissions - it's capable of doing both just fine.

[pikespeakgtx]

I can run high or low impedance injectors with the MS right?

I'd really like to avoid the pintle type and the high impedance as they're just well old technology And the video below shows how badly they suck.

I could prolly step it up to those fancy pants new style long skinny ones, the gen3 bosch or comparable. I need to find out what fits the intake without fuss.

I thought this interesting. It's a slow motion test of several injector styles.
The guy has heaps of other injector porn.

http://www.youtube.com/watch?v=NIz5c9MLCls&feature=related

[atomicEGT]

For the new style injectors that fit our heads, check out www.deatschwerks.com

[pikespeakgtx]

http://cgi.ebay.com/ebaymotors/Mazda-Miata-MX-5-550cc-Injectors-550-cc-MX_W0QQcmdZViewItemQQcategoryZ33554QQihZ027QQitemZ400020731998QQrdZ1QQsspagenameZWDVW

[Lex]

I can run high or low impedance injectors with the MS right?

I'd really like to avoid the pintle type and the high impedance as they're just well old technology And the video below shows how badly they suck.

I could prolly step it up to those fancy pants new style long skinny ones, the gen3 bosch or comparable. I need to find out what fits the intake without fuss.

I thought this interesting. It's a slow motion test of several injector styles.
The guy has heaps of other injector porn.

http://www.youtube.com/watch?v=NIz5c...eature=related

You are not limited to high imp injectors. HOWEVER, the code I put on the MSI units I ship is the high resolution code. This means you get 3 times the PW resolution of normal MSI (0.1ms) but you lose the ability to run peak and hold injectors unless you run them with an injector resistor box. This is what I do in my car with my 550cc RC injectors.

If you don't like the resistor box and still want high impedence injectors, you can opt for the normal MSnSExtra code but deal with the normal 0.1ms resolution.

MSII has a much higher resolution (0.001 ms) and can run both high and low impedence injectors.

[pikespeakgtx]

Alex I don't mind a resistor box. Do I need anything special or can I take a box off of a early 90's honda, rx-7, GTR or what? How much is a resistor pack $40?

I think the peak and hold style is more ideal. And having the extra pulse width resolution is good measure.

1986-87 RX-7 195500-1370 Peak and Hold 550cc Tan Top
1988 RX-7 195500-1370 Saturated 550cc Purple Top
1989-91 RX-7 195500-2020 Saturated 550cc Purple Top

I wonder about those Tan Tops... might could get a cheap set of decent injectors.
I have stock GTX injectors in now. And a set of 195500-2010's (460s) sitting around the garage. But 550 seems to be the way to go.

If you use the stock ecu for idle control then it runs rough because you have larger injectors. So you pretty must use MS1 for idle control to have it run smoothly. Correct?

Lex what is your current engine/turbo set and hp level? A nice safe bet at first would be to mirror your current setup until I get my feet wet.

[Lex]

Alex I don't mind a resistor box. Do I need anything special or can I take a box off of a early 90's honda, rx-7, GTR or what? How much is a resistor pack $40?

I think the peak and hold style is more ideal. And having the extra pulse width resolution is good measure.

1986-87 RX-7 195500-1370 Peak and Hold 550cc Tan Top
1988 RX-7 195500-1370 Saturated 550cc Purple Top
1989-91 RX-7 195500-2020 Saturated 550cc Purple Top

I wonder about those Tan Tops... might could get a cheap set of decent injectors.
I have stock GTX injectors in now. And a set of 195500-2010's (460s) sitting around the garage. But 550 seems to be the way to go.

If you use the stock ecu for idle control then it runs rough because you have larger injectors. So you pretty must use MS1 for idle control to have it run smoothly. Correct?

Lex what is your current engine/turbo set and hp level? A nice safe bet at first would be to mirror your current setup until I get my feet wet.

Pretty much any resistor box would work. I tested both a DSM and a Honda one and they both had the same resistance for each injector channel. You can get one at a yard for next to nothing. Note that a peak and hold injector will essentially work in a saturated mode with a resistor box. The GTR employed a resistor box with low imp injectors.

Even with a resistor box, a low imp injector will react faster than a high imp one. Make sure the injector style you choose fits the BP head, earlier RX7 ones may be too large and that darn pintle cap can be a pain to work with.

Unless you find some really cheap injectors, it's almost worth it buying some Lucas/RC (disc type) injectors because you end up having to buy a rebuild kit for your used injectors and it's advised to get them cleaned as well.

460cc injectors should take you north of 250whp and 550s are good to 300-320whp.

If you let the stock ECU control idle, it is only controlling the idle air control valve since the MS has full control of injection. So it will work no matter what size injectors you have - but that option will be more expensive to build. If you have the MS take full control of idle, it will control the valve as well.

My current setup is a forged BP motor bored to 1.9l running a VJ23 turbo and GTR intake manifold with all the bolt ons. Injectors are RC 550s low imp and the car will pass emissions without problems and be just fine for daily driving.

Last summer boost was set to 16psi and it was good enough to trap 108mph in the quarter mile without launching on my first time out. This summer, boost control is moving to the MS and I plan to run 18psi and leave it at that because I'm not sure the tranny can handle too much more.

[therieldeal]

psshhh c'mon... i've already proven that the tranny can handle 23psi!

...for 3k miles...

[pikespeakgtx]

Thanks.

I'm realizing that the most important thing about injectors is that you get a flow matched set.

As low a flow rate as 550 the Latency difference between a saturated and a peak hold injector(used with a resistor pack) is marginal since you loose a little bit of the benefit of having the low resistance while using a resistor pack. (1.2 vs .9maybe)

The next thing I'm thinking is it's more of a bother for me to switch plug styles and run an injector box just to gain that little bit of latency time that I'd get from a low impedance injector.

The plan now is to use those new denso type from deatsch so if I want to go back stock I can in literally a snap.

Are you running a dual fed fuel rail or a FPR?

[Lex]

Thanks.

I'm realizing that the most important thing about injectors is that you get a flow matched set.

As low a flow rate as 550 the Latency difference between a saturated and a peak hold injector(used with a resistor pack) is marginal since you loose a little bit of the benefit of having the low resistance while using a resistor pack. (1.2 vs .9maybe)

The next thing I'm thinking is it's more of a bother for me to switch plug styles and run an injector box just to gain that little bit of latency time that I'd get from a low impedance injector.

The plan now is to use those new denso type from deatsch so if I want to go back stock I can in literally a snap.

Are you running a dual fed fuel rail or a FPR?

I am running a dual feed Vishnu rail with a stock GTX FPR. Works well for my needs so far.

[pikespeakgtx]

I love the vishnu rail but I'm unsure if it's still available. Is it? Where?

So far I've seen:
Vishnu
Shore motorsports
M tuned
Tuner Toys
Flying Miata
Dual fed stock rail

Do any of these work especially better than another on the protege version of the bp?

I hope you don't mind me asking all these questions and going off in little tangents. The reason I'm doing it is so that you can take what you want from this when you have others asking you the same questions in the future. You'll have canned responses and answers to give them. Eventually I imagine you'll have to make up a little FAQ....

[Lex]

My Vishnu is actually a slightly different design than what is pictured - the FPR is not at the end of the rail but rather much closer to the middle - between cyl 2 and 3 I believe.

There are 2 points I will make about these rails.

1. I am not convinced they are a necessity for the power most BP turbos make. I got mine used (this is how I get most of my performance parts as people go through them quickly and change) and it was a good deal. However, I have yet to see data of the stock rail not keeping up at 300hp. Sure the stock one is not as pretty, but I wouldn't jump on a rail just because. A bigger concern for me has been the non baffled fuel tank where sloshing is a big problem when close to a 1/4 tank and cornering. I have ran out of fuel that way more than once.

2. Be careful with fitment before buying. The Miata intake manifold is different from a FWD and my FPR comes very close to the throttle cable bracket on my manifold.