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04-02-2011, 08:09 PM #1
vortech Maxflow Mondo Bypass Valves
OK I have an LS1 automatic, LS6 intake, 85mm TB, 60lb Injectors, P1SC intercooled, and 255lph fuel pump. This is my first ProCharger and it started and ran strong after I figured out the injector trim. When I gave it some throttle it wanted to die unless I went slowly. My AFX was reading about 12.5 and I wasn’t seeing any boost. My vortech Maxflow Mondo Bypass Valves stays open at idle and closed when I pull the vacuum line off, but will not shut without pulling the vacuum line. My questions are, dose the bypass valve need to be at a certain throttle to shut? Could it be a bad spring in the bypass valve? I have the vacuum hooked in the front of the LS6 intake just after the TB. I am also not seeing any boost. Even after I pull the vacuum line. Any idea where I went wrong?
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04-03-2011, 12:01 PM #2
OK so my boost shoots to .73 PSI at 15% Throttle.... Spring is set as tight as it will go. So new spring in the BPV or weaker Vac should adjust me to where I need to be. Maybe. Any thoughts?
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04-03-2011, 11:57 PM #3
- Join Date
- Apr 2001
- Location
- Surf City, NC
- Posts
- 2,499
Black/Screaming Yellow- 99 S/C TA WS6 & 04 Cobra
Hmm, check all of your piping and your belt tightness for the S/C head unit. You have to keep the vac line going to the Bypass valve and when under boost the valve should close and the system should build boost to redline. If it is not doing that then maybe your the vavle is malfunctioning or you are leaking it somewhere else.
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