Originally Posted by TT996-2002

Thanks guys. Tim and mark i have now read a few lengthy posts y'all have helped on. I read one that ended in October, six pages long with no ending. Very depressing.

I believe dv's. I'm not sure about n75 as I hear the boost loss and not exhaust louder. Would that be a correct assumption.

The maf could be. But I'm still hearing the boost. Car sounds like u are in a turbo Honda. U just hear it spool

I will post more tomorrow. I will figure this out. Damn it. I don't lose

Lol

Originally Posted by Edward Jones

I had low boost problem on stock turbo. Paid $400 for good diverters; nothing. Today installed N75 and now I can sustain .6 bar briefly upon high demand. That seems about right-right?

What would happen if I did test with N75 valve removed completely??

Originally Posted by Edward Jones

I had low boost problem on stock turbo. Paid $400 for good diverters; nothing. Today installed N75 and now I can sustain .6 bar briefly upon high demand. That seems about right-right?

What would happen if I did test with N75 valve removed completely??

Originally Posted by FAST FWD

See RichardCH's thread on his blown up motor. In short, his mechanics left the N75 valve unconnected (accidentally). The last thing that the ECU said before the puff of smoke was "1.6 bar, detonation in all cylinders"

So, I guess that I am recommending against this.

Jon

Originally Posted by MARKSKI@911tuning

instead of searching many things get to the bottom of it and pressure test from the turbos.... you need someone that knows how to do it... smoke tests are for P car mechanics.. boost leak test is for those who want to find the issue....
you need a kit.. its about $100 and shop style pressure tank .. you need to put about 20 psi... you will find everything and then some... do this instead of changing parts.. that will only create more issues..

Originally Posted by hroussard

Not wanting to high-jack this tread but..who does these (similar) tests in the San Francisco Bay area??

Originally Posted by Edward Jones

I did leak test this morning but was not able to build any pressure and had no idea where it was leaking out. However, was able to hold enough pressure to get oil lid to pop if removed during first minute or two. Porsche dealership said as long as I could hit .6 bar on stock 996tt not to worry about it.

THe smoke test seems ideal in terms of seeing and locating any leaks? Any thoughts?

Originally Posted by tvurt

Stop what you are doing and just pressure test the car ..... you don't need smoke, soap in a spray can works great. I use a an automotive stethoscope, and soapy water. I do a pressure test from turbos first then a test from the intake to make sure its all tight and back together.

It is really simple and take a few minutes once a "rig" is built. Don't throw parts at a leak . . .unless you need to.