Hi, i have a 94 probe gt v6 2.5l. I mounted a eaton m90 from a SC a while some months ago. Ever since the initial install i've had boost dropping problems. I get about 6-7 psi with a custom intercooler and as i hit about 4500 rpms it begins to drop off. By the time i hit 6500 its like at 2psi. I've checked for leaks and everything else. My final conclusion is that maybe the supercharger is ruined, even though i don't know if that is possible, or the belt is slipping at high rpm's.I've checked it and eveything seems good, i don't hear any squeeling either... I aslo know some other people who have a m90 on a probe and they don't have this problem. We rebuilt the charger before the install so i asumme everything should have been good. Another note it the more boost i make,the lower it drops. for example i hit 9 psi on a really cold day once and it ended up droppig to 0 psi. Help! I can't figure this out.
p.s.Also my exhaust is about 2.75'' is that too small, maybe increase it to 3"?
p.s.Also my exhaust is about 2.75'' is that too small, maybe increase it to 3"?