wastegate actuator???

[jwalkin]

Ok I have figured out that the diaphram in my wastegate actuator is torn causing the car to overboost.

My question is does anyone know where to find a replacement.  I found a place called "Mach V Auto Sports"  and they sell the actuator ($75)  for t25 turbo but they specialize in parts for the Mitsubishi Eclipse.  Are the turbos setup different for the pontiac and the mitsubishi?  

Any information will be greatly appreciated.

Thanks,
Jason Dodge
1990 tgp BLK

[TGPilot]

Most wastegate actuators for Garrett turbos have 4.4 lbs preload on the diaphram. As long as the actuator rod is the same length or adjustable to the proper length and the mounting hardware is the same...you will be fine. I bought an adjustible wastegate for my Sunbird GT (same T25 as TGP) from these folks a while back... http://turboengineering.com/ Tell them what you need...they will get you what you need... 8)