Well im about 9 days away from getting my tune for my integra, and i did a boost leak test on it to find boost leaking out my #2 cylinder sparkplug hole and out the bottom of my oil pan. Im about ready to cancel my tune.Im thinking it has to be either a cracked piston or bad piston rings. The only wierd thing is that the compression test looked fine and the car runs well..
Any input guys??

 

have a nice day

 

put a cover over the inlet of the turbo, and applied air pressure to see if there was any leakage?????

 

have a nice day

 

Yes i put a homemade boost leak tester on the inlet of my turbo (Coupler with pvc pipe cap with valve stem jb welded into it) put about 12 psi into the engine, at first there were a bunch of leaks but i fixed them all and found that there was large one left in front of my oil pan coming from my return line (wasnt on really tight).
Took the return line off and air was coming right out of the bung at a rate though.

I then removed my sparkplugs and all cylinders holding the boost fine except there was a huge leak coming out of cylinder #3's sparkplug hole. (would only take 10 seconds or less to drop from 14psi to 0.

 

u running a catch can on that thing it may be to much case pressure and its finding weak point for that boost to go with blow by

 

You pressurized your engine to 14 psi via the turbo inlet? where did you get the info to do this, because unless I am missing something, I think you would install a blanking plug before throttle body and not pressurize the whole engine. I could be very confused but u sealed all the leaks in engine at 12 psi. That would be a crazy amount of blow by. did your dipstick shoot out?

 

if that motors around 200k i see that much blow by