car: Audi TT 225
-it was chipped at one point but I think a dealership along the way re-flashed the ecu or something.
-new aftermarket piston style DV (stock rated spring, no shims), new factory N75
I did a pressure check, when I drive I get a lot of air swooshing sounds (the entire time I'm accelerating, not just at shifts)
I used the soup can technique and it seems to work quite well. I plugged the pvc tube because the plastic seemed too hard to just clamp off.
I pressurize the system, except it doesn't build pressure very quickly. I notice air leaking from the oil cap. I can not hear any other leaks, but most of the air is out of the system before I can hear anything from anywhere else, also hard to hear any other leak over the oil cap leak.
Some guy on vortex in another similar thread said the rings were shot on another guys car. I don't believe this is true for me, no burning of oil etc.
1: Should there be air able to come from the oil cap at all?
2: Will replacement of the cap solve this "boost leak" ?