Turbochargers and Intercoolers | Forum profile

Sources include Limit Engineering, Precision Turbo & Engine, etc. They aren't that hard to obtain. Is it the wastegate actuator you are trying to check, or the wastegate flapper? Neither of these would indicate a "bad turbo", BTW. The Buicks are pretty unique to having this three bolt exhaust flange. The late-70s and early-80s Pontiac Turbo Trans Ams may have used them on their carbed ...

You didn't state what year the car is, so I will assume it is an 86/87. - Did you only remove/replace the turbo? - Did you fully tighten the header bolts, downpipe bolts, and all of the clamps for the inlet and outlet piping? - Are you sure there are no leaks in the intake/intercooler piping? - Is the dowpipe sealed with a gasket/RTV (aftermarket) or donut (stock) to the turbo? - Are...

I am also looking for a waste gate solenoid for a 86....where would I start to look even???? any suggestions?

Sounds like a good way to p*ss off your MAF

What is your turbo and torque converter? Something tells me that the car is just too 'tight' and/or the turbo too small or weak to make any more boost. Perhaps the motor has seen better days. Theoretically, you should be able to make as much boost as you can achieve with a 'brake. Not that you should...

All is now good and right in the world. It turns out that after the cam install, the IAC was not reset, the TPS was not adjusted and the cam sensor was 180 degrees out. Also after all was adjusted and I went for a ride, the car almost died and ran rough with a puff of black smoke. Went back home and sure enough, I blew the hose off the intercooler. I reconnected properly and went for a ride....

Yes. Particularly leaks at the turbo-to-manifold condition. However, leaks on the intake side may be the reason as well.

Shorten it. However, there are limits of what is sane. Going above stock without more octane or alcohol injection will likely cause detonation. We've discussed this here for the last 16 years...

It's very similar internally, but obviously all the plumbing is totally different, it's carb'ed (not EFI), etc. Take a look here: http://www.gnttype.org/general/v6hist.html For a year by year break down of the differences.

TA = bolt on, stock type inlet bell that bolts onto the compressor cover TE = integrated inlet bell that is part of the compressor cover Full ball bearing turbos are much more expensive than ones that are not ball bearing, or are only partially ball bearing. They also require a small amount of plumbing for the coolant lines for the center section. BB turbos aid in spoolup and low-speed ...