still bucking

[dsm5150]

ok so i made a leak tester.now when it comes time to pressureize the system i was using a bike pump.the boost gauge will only climb to like 2 psi.im guessing thats not enough.should it hold the pressure??


any ways at 2psi i heard nothing.im going to borrow my buddies compresssor and try and get it to 15-18 psi.if i have no leaks after that what else could make it buck under boost?like i said before-full throttle it bucks and feels like the engine is trying to push somethig out.but as long as i apply a little gas evenly its ok.plugs are gapepped to .028(bpr7es)wires are fairly new.i have good spark.i have a pretty good sized exhaust leak from a broken stud but that has never affected it before.

 

[turboholic]

Originally posted by dsm5150
im going to borrow my buddies compresssor and try and get it to 15-18 psi.

-Make sure you also borrow some long air hose so you can set the compressor far away from the car, because you can't hear anything when the compressor kick in.