Hello all,
I bought a very nice 92 XR2 this week from the original owners, with years of maintenance history. The car has 135,000 miles and I'm very happy with it but I consistently reach the boost shutoff light/alarm at 10psi under hard acceleration around 3000rpm and the motor falls flat on its face for a few moments until it recovers. I am about 90% sure my wastegate is malfunctioning so I'd like to know if there is a way to rebuild it or if I should just disconnect it and run a manual boost control and BOV. I do not plan to go all-out modifying this car, really I only want a different intake, rocketchip, and mechanical boost control around 13-15psi. I would be happy to hear any thoughts or suggestions from you before I begin working on it this weekend, but here is a little more background:
-Turbo is definitely working, I feel it kick in but do not hear any "mooing" or whoosh that I would suspect a bypass would sound like
-I will check shaft play on the turbo
-I will install a separate boost gauge to closely monitor my real pressure at the intake
-I will try to find any pressure or vacuum leaks and may just replace all the hoses I can
-I will try running a line directly from the intake tube to the wastegate actuator, or see if I can pressurize it enough to open
-The head was completely rebuilt at 116,000 by a professional shop along with new timing belt, plugs, wires, cap, and rotor
Pics will be posted this weekend along with any updates I have found. Thanks in advance, -Boom