ok guys heresthe thing im currently running about 7 psi (stock) thats after i have put 4 washers on the wastegate and also installed a MBC and still running 7 psi i have a MHG and ARP head studs...... i want BOOST!!!! atleast 10-12 psi......:1zhelp:
NO BOOST!!!!
- Thread starter onefstsupra89
- Start date
Get those stupid shims off if you've got a manual boost controller!
It's only going to stress the wastegate that much more...
And if shimming your wastegate AND setting a MBC didn't up the boost any, you've got a boost leak (check your lower IC pipe as well), or you simply need to find another wastegate.
Jeff
It's only going to stress the wastegate that much more...
And if shimming your wastegate AND setting a MBC didn't up the boost any, you've got a boost leak (check your lower IC pipe as well), or you simply need to find another wastegate.
Jeff
onefstsupra89 said:
Uhm... that's about it.
Did you check your intercooler pipes, hoses & clamps yet?
any codes? FC? The shims need to come off if your using a MBC. 12 psi will be no problem after you find your leak.
I have 4 shims in my wastegate, and I only hit 8psi at most. :dunno: I don't think I have any boost leaks, the car runs perfectly.
Johnathan: When you say 4 "shims"...are you referring to "4mm"?
If so, You should be at a little bit more than 8psi...maybe not TOO much more, but I'd think 8psi is a bit low for 4mm shims.
And back to you, onefst:
Just because your intercooler pipes are connected doesn't mean you don't have a boost leak. Check your couplers for any tears of any sort...or if you REALLY want to investigate, go build yourself a $5 boost leak tester.
Jeff
If so, You should be at a little bit more than 8psi...maybe not TOO much more, but I'd think 8psi is a bit low for 4mm shims.
And back to you, onefst:
Just because your intercooler pipes are connected doesn't mean you don't have a boost leak. Check your couplers for any tears of any sort...or if you REALLY want to investigate, go build yourself a $5 boost leak tester.
Jeff
i had sumtin like this happen to me but i was running 14psi on mbc w/dp and my bov vac line come apart (greddy type-s) and it only boosted to 8psi with it un-done but that might be something completely diff than what your having probs with
just my .o2 for today
just my .o2 for today
If you have the stock downpipe with the cat in it I would bet that is a major part of the problem. Definately check for boost leaks too. But get a bigger exhaust before you shim or get a boost controller, because that is going to make alot of heat that is not good for rubber parts under the hood.
