Join Date: Sep 2003
Location: Fort Belvoir, VA
Have you heard the wastegates open yet? With 5 psi springs and you said you've seen it climb to 10 psi in first gear... the wastegates should've been open, or aren't doing their job properly.
The BOV's should not be heard unless you take your foot out of the accelerator under boost or a sudden cause of engine decel causing vacuum in the manifold. Another issue could be that one or both Bosch BOV's are being pushed open by boost, but it doesn't seem likely at that boost level. I ran 22 psi on a Bosch type BOV.
1992 Mustang GT, F150 Coyote swap, Mustang intake cams, 2018 Intake, JLT Cold Air, Fidanza V2 Clutch, G101a H-pattern, 2900lbs (work in progress)--10.60 @126 mph
1972 Maverick Sprint
Last edited by 87Saleen209; 06-20-2011 at 08:30 AM.