I started having issues with my turbo Camaro. For a couple years I was running a Precision PW40 wastegate with a Turbonetics MBC. The wastegate had an 8psi spring in it and the MBC pushed boost up to 12psi. I started noticing this year that boost was only making it up to 8psi so I immediately condemned the cheap MBC. I had my AEM Tru-BoostX gauge wired up for years except for the mac valve, so I figured it was time to make the switch. According to AEMs manual, the valve was a direct swap for my MBC in terms of plumbing.
I made a little bracket, wired and installed the valve, set up the controller, and some very unexpected stuff happened.
Somehow I have even less boost. I'm only making 5-6 psi. How can I be making less than gate pressure? The only explanation would be a leak, right? I'm guessing that If I pull the mac valve out and trying blowing through port 1, I'll have leakage out ports 2 and/or 3. I already know that if I blow through port 2 I get very little air flow out port 3 which is not normal in its deenergized state.
I'm getting a bit ahead of myself with this question because I haven't tried the first test yet. I could also hook the gate up without the mac valve and see if I at least make 8psi again. This will rule out a wastegate problem. Anyway, if I find that the valve is leaking can it be cleaned out or fixed or do I just need to replace it? This is a controller and valve that I bought used, so I don't know what might have happened to it. Maybe there's some teflon tape stuck in there that I can't see.
I made a little bracket, wired and installed the valve, set up the controller, and some very unexpected stuff happened.
Somehow I have even less boost. I'm only making 5-6 psi. How can I be making less than gate pressure? The only explanation would be a leak, right? I'm guessing that If I pull the mac valve out and trying blowing through port 1, I'll have leakage out ports 2 and/or 3. I already know that if I blow through port 2 I get very little air flow out port 3 which is not normal in its deenergized state.
I'm getting a bit ahead of myself with this question because I haven't tried the first test yet. I could also hook the gate up without the mac valve and see if I at least make 8psi again. This will rule out a wastegate problem. Anyway, if I find that the valve is leaking can it be cleaned out or fixed or do I just need to replace it? This is a controller and valve that I bought used, so I don't know what might have happened to it. Maybe there's some teflon tape stuck in there that I can't see.