where is my boost going??

[malloynx]

for the past week, i can't boost more than 17psi no matter what i do.

i'm running the joe p MBC and 17psi is the most i can get now. i check for leaks and i can't find any, however the boost comes on slow. i think there is a leak but i sure as hell can't find it.

my IC system is pretty sound and it's all new and not a hack job.

what are the things i need to take a look at??

 

[Nick M]

Ignition timing retarded? Maybe cam timing?

 

[malloynx]

hey nick, timing is 10 degrees BTDC

 

[MDCmotorsports]

Mike, what about the cams?

Don't rely on the crank dampner to say its "x" degrees due to the fact they have a tendancy to slip.

Also, check the wastegate assembly and flapper door. Something is letting the exhaust out and not through the turbine.

 

[chriso]

^^^^I was going to say wastegate leaking by.....

 

[Racefiend]

You may have some duendes in your engine. They are stealing your boost!

 

[MKIIINA]

how bout the exhaust manifold gasket? loose bolts here and there can be a bitch

 

[koulee]

boost gauge maybe?

 

[Insidious Surmiser]

lol^ could be... why don't you just test for leaks... i'm sure you've got a home depot/lowes and an air compressor somehwere in charlotte

 

[suprahero]

If all else fails or if all else is right, try the apexi avc-r. My car wasn't boosting good at all. It took forever to boost. I installed the apexi avc-r and it is amazing now. Just thought I would throw that out there...........good luck...................lol

 

[WeDgE]

lol^ could be... why don't you just test for leaks... i'm sure you've got a home depot/lowes and an air compressor somehwere in charlotte

x2

 

[MDCmotorsports]

Its not his boost gauge, as the hp isn't showing up on the dyno.

 

[Nick M]

I figured the wastegate was obvious. I thought maybe the engine not loading could be a problem. 10 is correct, but what about advance? I didn't know if you had timing control or not.

 

[malloynx]

nick, i think the timing advance is good. i'm going to test the system tommorow with nitrogen. i have a huge tank with regulator at work. i'll feed it 30psi and see what happens. i'll also look over the wastegate