Need help with a 89 7m-gte

flnbobpogoman · 04-10-2006, 01:42 AM

ill've just read some post...i heard about shimmed wastegate... i think mine is because both bolt have 4 shim behind each... maybe thats making me having that 15 psi??? ill tryed to remove 2 of the shim but the bolt is torqued but the wastegate still can move so i shimmed to the other side ( 2 shim to make the wastegate more far from the turbo) ive tryed it and the turbo dont seem to go more then 10 psi...but i cant really test it cuz the clutch is slipping

but adding or removing shims is a way to control the boost?
the car also have a 3? straight pipe (no cat) exhaust and a knN air filter...it also have arp torqued bolts.plz help me i wanna limit the turbo to 10 psi what should i do???

i also have the burned bulb dash light,antilock and check eingine light on

04-10-2006, 01:42 AM	#3
flnbobpogoman Stock Join Date: Apr 2006 Location: Montreal Posts: 8	ill've just read some post...i heard about shimmed wastegate... i think mine is because both bolt have 4 shim behind each... maybe thats making me having that 15 psi??? ill tryed to remove 2 of the shim but the bolt is torqued but the wastegate still can move so i shimmed to the other side ( 2 shim to make the wastegate more far from the turbo) ive tryed it and the turbo dont seem to go more then 10 psi...but i cant really test it cuz the clutch is slipping but adding or removing shims is a way to control the boost? the car also have a 3? straight pipe (no cat) exhaust and a knN air filter...it also have arp torqued bolts.plz help me i wanna limit the turbo to 10 psi what should i do??? i also have the burned bulb dash light,antilock and check eingine light on __________________ John