I have came across a turbo from an '88 ford t-bird. It has the stock wastegate controller, mechanically controlled by boost pressure. I do not want to run the 13lbs of boost that this controller is designed for, so I need to come up with a way to limit it. I am wondering about an electronic controller, but it would need to have a solenoid to move the wastegate, not a solenoid to bleed off pressure to get more boost out of the stock wastegate controller. I am also wondering about just using a blow-off valve, but think that it will be blowing all the time if I just run 2-5lbs of boost. Any suggestions on what controller/valve to use? I have a '92 Hatch CX that I bought last year from a guy that had the engine rebuilt, but it still has the 8 valve head unfortunatly, so I am not sure what exactly has been done to it in terms of performance enhancing internals that can take higher boost.

 

bump

 

There is a controller that uses a solenoid actuator, right? Is there not anyone using one of these? Opinions.....

 

I don't believe you can run less boost than the actuator is set at. You'll want to run more than 2psi, otherwise you'll probably lose power, since you'll have the turbo blocking your exhaust and not giving you crap in power (or so I've heard)...

you should be able to cut the actuator and thread the ends and put an adusting nut on it so you could change the boost...or, just take it off and put a return spring on there of the right tension and it'll allow the gate to open at lower boost.

 

if it still has the 8-valve, I bet it doesn't have any performance mods, sorry to say, it's probably just stock replacement parts, which is better than nothing.