Vj20 Waste Gate Question

[bptescortgt]

Well I Was Currently Running A Vj20/vj11 I Was Using The Vj11 Compressor Housing With No Waste Gate So It Was Stuck At 6psi.. Now My Problem Is That I Put The Whole Vj20 On There And Hooked It All Up But Its Want To Spike 15-20 Psi It Feels Like The Door Dont Open I Put The Boost Controller On As Well And Nothing. I Notice On Almose Every Turbo Has A Nipple On The Waste Gate And One On The Turbo But On The Vj20 In Has Only One On The Waste Gate Actuator .. Help Me Out And Let Me Know What You Guys Do For This Problem..do I Need To Add A Nipple In The Turbo Charge Pipe To Allow The Actuator To Get Air To Open Door..let Me Know That You Guys Think...

[ScOrTGtC]

naw you dont need to add another nipple at your turbo.. what u need is just t it in one of your VAc line and hook that up to your waste gate.. some people say that its better to have it there than in the turbo itself. also from the way u say it seems like you didnt hook the vac line for the waste gate thats why it dosnt open at all..?

[bptescortgt]

I know i have it hooked up i was lookin at the stock gtx set up and there was a t coming from the boost sylnoid on pipe coming from the turbo by the maf...like in pic what do you think..

[ScOrTGtC]

hmmmm.. just tap it in your manifold. im guessing that actuator is basically just a bypass. an on and off vac type. just tap it in your manifold and that should do it.

edit: yeah that solenoid is just a bleeder .. and the t is basically one way of relieving some pressure away..

[therieldeal]

if it turns out that your wastegate actuator is bad, i have one for sale.

[elscotto80]

I would not hook it up to the manifold. There is going to be lag time from that far away from the turbo. All you need to do is tap a nipple right off the charged side of the turbo and hook it to the wastegate.

[TurboProto]

Ok where exactly are you getting your vacume from?
Cause for best results on a system without a boost controller I tee off the vacume line behind the throttle body. With a vj20 it should run about 10 psi without any lag. And I dont use any of that stock electronic valve crap or that tee in the middle of the wastegate line.

Or if you have a electronic boost controller, the vacume lines will be different.
I have the Greddy Profec B spec II and it has 2 source's for vacume. One gets a feed from behind the throttle body for the electronic valve for the wastegate. And the other tee's off the fuel pressure regulator and has a built in filter in the line before it gets to the boost controller inside the car.

Also check the condition of your hoses, cracked hoses are no good.

[elscotto80]

I get the vacuum right off the turbo, I had a nipple tapped and just routed a hose from there to the WG. I see no more than 8psi, 10 when its really cold out. You are seeing more psi because there is a pressure loss from the turbo to the TB. I am not saying that your method is wrong, I just like to keep it simple and stay within OEM boost spec.

[therieldeal]

there wont be "lag" because of a 2 foot vacuum line versus a 6" line. someone tested their megasquirt with 100 feet of vacuum tubing on the map sensor and logged no appreciable change

[elscotto80]

there wont be "lag" because of a 2 foot vacuum line versus a 6" line. someone tested their megasquirt with 100 feet of vacuum tubing on the map sensor and logged no appreciable change

Well sir, I stand corrected. Interesting info.

[bptescortgt]

ok guys i got the problem fixed the wastegate was bad put another one on, now it boost at 9psi with no boost controller.. i got 330cc injectors and fmu but under boost when it starts to the wideband reads 13.3 than got to 12.5 i dont hear no pinging i got the plugs gap at 30.. im using bkr6e-11 i just ordered the 7e-11 for a colder plug...should this fix the lean problem?

[LisaT]

12.5:1 lean? what are you smokeing.
thats almost a little rich.

[bptescortgt]

So Lisat Do You Have A Wideband What Are The Readings If To Rich? My Friend Had A Mx6 Rs 2.o And 12 And 13 Are High For His Different Car Different Reading That Why I Ask Here...