Typical newb questions...

Jake

Jake

New member
Well first off, my name is Jake and Ive got a 93 Ty, number 2018. There are some mods on it already (K&N, 3"single exhaust, dump pipe, etc.) As far as I know its the stock turbo, and its definately overboosting. Ive got a real boost gauge to verify that, not just the peice of junk in the gauge cluster. What are my options for keeping the boost in check? Ive been told that as soon as you free up the exhuast that the stock wastegate system is useless. Who sells the datamaster? I know I need one. The last thing I want to do is blow this thing up. Im pretty familiar with GM turbo V6s, Ive got two turbo buicks but this is a totally different animal. Thanks in advance.

Jake
 
TYRODD

TYRODD

My ass. Look at it.
Re: Typical newb questions...

Check all the vacuum lines on the boost solenoid and the turbo housing...those are extremely critical to how your stock wastegate performs. Have you still got a cat? If not your probably never going to attain solid boost control with youre stock WG...upgrade :tup:
 
Double12

Double12

AstronautCowboyMillionair e
Re: Typical newb questions...

Overboost is common on these trucks once they get a high flowing exhaust. The quickest way to solve an overboost problem is to just run base boost (run a vac line directly from the turbo to the wastegate actuator, bypassing the factor boost control solenoid). It makes the boost top out at an anemic 8-9 psi, but its better than killing the motor. After that band-aid fix you can look into upgrading to an external wastegate. Utilize the search function for help on that one.
HTH
 
Jake

Jake

New member
Re: Typical newb questions...

Thanks, I'll look into it. Is there a vaccum line diagram online somewhere? On my buicks I use a scanmaster, it shows all the important engine info, knock retard, O2 mv, coolant temp, O2 cross counts, etc. Where can I get a scan tool with the same sort of features? Id rather run 9 psi than have to pull the motor out from it detonating. Thanks guys.

Jake
 
wheels

wheels

Donating Member
Re: Typical newb questions...

when i first got my Ty, it was overboosting. all that was wrong was a vacuum line off the wastegate.
 
You must log in or register to reply here.
Top