I was wondering if anyone could help me with doing a leak down test and little trouble shooting for fixing up leaks before friday night when I finally get to go back to mission raceway? I would have some cash and can of course drive to you. I should be holding boost better than I currently am. I have meth/water injection as well as head studs but can never seem to hold more than 20-21 up near 7k or so. I mean yea Im able to spike sky high, but I cant hold much.

I know this thing could be alot faster if I can get some help. Anything would be greatly appreciated and get my moral back up on the Evos side

 

That sounds like a dirty boost control to me.

 

The thought crossed my mind that the mbc was leaking because it makes a hissing sound at anything over 5psi. Does anyone think that could be the problem? It the turbosmart "sleeper" mbc, it has two venting holes on the side. I cant image it leaking 5+ psi, is that possible?

 

Yes there might be a line that is cut or has a hole in it from your turbo side