JesterX18

So basically I have a serious boost creep issue. So much so it blew my first motor and toasted 5grand worth internals.(it hit 24psi and crushed rod bearing #3 and main #3...) Im running a gt2871r on a stock codyace fabbed manifold with a tial 38 mm mvs. I also have a aem truboost electronic boost controller and gauge. (bypassed atm). So my line is coming of my turbo outlet to the top of my wastegate. I now have a 8 psi spring installed. If I lightly accelerate it seems to hold around 8. If I floor it I hear the wastegate rip open but my boosts still climbs and the car takes the fuck off. Since this new swap it has hit 16-20 ish briefly. I need some experienced opinions here. I went with this setup to avoid this ever happening. My only thoughts are should I have the wastgate nipple on the side instead of top? and the tru boost nipple that I threaded into my turbo outlet is small and the wastgate nipple is big, good the difference in size cause the wastegate to not open proplery. I haven't been able to find anyone else with this issue. Hope somebody has an explanation.

jr_ss

Well for starters, you should've probably read the directions for hooking the ports up. Tial instructions say to install 1/4ID line from pressure source to lower port. Block off remaining lower ports and leave top port open to atmosphere.

Leaving the other two lower ports, which I'm assuming have nothing installed at this time, causes the valve to allow severe over boosting.

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JesterX18

Yeah I figured it out. There was a lot going on. I had the nipple on the top port not the bottom. And all but one of the air block plugs blew out. And I had it plumbed on the wrong side of the turbo. Will finally have it sorted out soon. thanks for the reply though,wish I had read directions better...