[RESOLVED] Car isn't building any boost

[eboy0]

I just installed my new turbo setup, and it looked extremely promising.

It's a 35r with a external WG mounted on the manifold.

Here seems to be the problem, I didn't change ANYTHING between my old turbo(50 trim) to this one besides the obvious; manifold, WG, and o2 housing.

The car doesn't build any boost at all. I've boost leak tested from the turbo inlet, aswell as the TB elbow, it held 33 psi before my TB seals started leaking a little.

But here we go, I thought it was turbo lag, since it's an obviously bigger turbo, but I got it up to like, 5500 then 6000, then 7000, and the boost gauge stayed @ -3vac the entire time...

I don't hear my WG dumping, so that leads me to think that the WG is stuck open?
I applied a pressure source to the WG nipple and the tone changed alot @ idle.

Also, if this makes any difference, i'm not running a downpipe... I don't think this would make a difference, since i've driven around without one before.

Any help would be greatly appreciated.

 

[Stainbox12]

Sounds like the wastegate is not working. Exhaust doesn't come in to play here.

 

[dsmdragon]

so do you have your wastegate hook to the manifold or the turbo compressor. It should be the comp. if possible, and yes it sounds like a wastegate problem. I think the downpipe may clug some stuff (not work to it's best) a bit and it would help to have a downpipe....

 

[eboy0]

Took off the WG and found that it wasn't making a complete seal with the flange, thanks guys.