Turbo question

mjr45 · 11-10-2009, 10:53 AM

96 2500 4X4 with gauges, 4K gsk, BHAF, 4" turbo back, boost elbow, 10 0 plate and prime lock. When I first put the mods on, boost would hit 30psi, now at 22-24psi the pop off goes and drops all the power, egt runs 1150 when towing in 5th gear. Causes real probs when towing. Any clues as to the problem?

BigT18 · 11-10-2009, 12:04 PM

I'm having a similiar problem... but i hear a hiss from the drivers side. I tried finding a leak using compressed air into the turbo using a adapter i made but i got nowhere. Cruising around my boost dropped from like 6 psi at 65 to about 2-3 psi. It only boosts to 25ish psi. Used to do atleast 34.

mathews8pt · 11-10-2009, 12:13 PM

either a boost leak or the wastegate actuator is opening when its not suppose to. More than likely a boost leak from what you are saying. Check everything over very well and if you can build a plug for the turbo use some compressed air and soapy water to check for leaks as well.

calebmcclellan · 11-10-2009, 01:53 PM

check the lower boot on the pass side. they will expand and rub on the sheetmetel and tear a hole