Does anyone know or has anyone adjusted the threaded rod on the waste gate coming off the turbo? By adjusting that rod will that increase or decrease my boost? Like on the Buick Grand National by adjusting this threaded rod you can change your boost 1 turn equals 1 pound.

 

boost is controlled through the PCM. get a tune to change boost levels. don't mess with the wastegate rod

 

^What he said.

If you start messing with the wastegate adjustment it'll cause you all sorts of problems. Just get a tune.

 

besides if u manually up the boost the car will learn, adjust, and ull still get stock power. u have to tune it.

 

I have the GM turbo upgrade kit already installed and that puts me at 21psi I was just wondering if there was a way to say have a soild 23psi?

 

And let me ask this with already having the GM turbo upgrade kit would i benefit from a tune hp or trifecta and is it possible to do this tune and keep that upgrade? And what would the benefits be?

 

yes night and day difference in gms1 and hpt..................... hpt is the way to go

 

can i get the hp tune with leaving the gms1 kit on there?

 

Go get HPTuned and you'll know the benefits

I got HPTuned in July and was GMS1 with a catless downpipe and airbox mod and thought my car was fast then (best 1/4 pass was a 13.5) but once I got HPTuned I realized how deprived I was. This car needs a tune. Just do it.

(my $.02)

 

Yes. It just changes the boost parameters. No mechanical changes.

 

yes, the upgraded map sensors are a benefit, the actual gms1 tune wont be there but it is still compatible with hpt.

 

would you guys buy the hp tune and do it yourself or find someone around to do the tune?

 

if i was you i wouldn't, if you have never done it before now might not be the time to start, you can certainly buy HPT and byt or any other reputable tunner can help you via email but you are close enough to just drive to his shop it might be a 3hr drive but it will be worth it and cheaper then buying HPT..... i drive 2.5 to have him tune me......IDK if byt will be doing one but you can wait and see if he will be doing any more dyno days in Pottstown PA. that may also be closer

 

I live in Westminster MD does anyone know someone that they would recommended that can do this tune?

 

Question, could this have been adjusted when I got my K04+? if so how do I make it back to normal?

 

For what its worth I had GMS1 and I just tuned over it with Trifecta. Now, with cruise control off Im in trifecta running 22-23psi, cruise control on is back to GMS1 making about 20psi. Its night and day, fast as hell now! I also have a Dejon SRI and TurboXS catless DP.

 

That wouldn't cause a no boost issue since you were making 20psi unless your wastegate is stuck open.

 

I see, but I think it is stuck open. I can't make boost, my max boost is 0 psi at the moment