synracing33

OK so i followed the factory suggested boost test, which is to be in 3rd gear and accel from 35mph and watch the boost. my boost began to clime to about 8 psi then as the secondary turbo came on, it began to gain back to just shy of 7psi, then quickly drop to about 3psi. i am running a completely stock set up. any ideas of what it could be or how to fix it?

DaveW

http://www.autosportracetech.com/RX-...leshooting.htm

dgeesaman

iTrader: (7)

The first step for cases like this is to make a thorough check for boost leaks. There is a thread in the FAQ links showing what to look for. Remove all couplers and inspect for damage.

If that's not the problem, you may have two problems here - one limiting you to 8psi, and another preventing it from reaching full boost in parallel mode. It's quite possible you just have a couple loose vacuum hoses or broken nipples.

Dave

gracer7-rx7

iTrader: (16)

1. Check your intercooler hoses for boost leaks as DGeesman suggested. Its the easiest step.
2. Check to see if your cat is clogged. I think this might be the culprit for you. Search for my user name and clogged cat as I have a couple of posts on it.
3. Follow the link DaveW kindly provided.

The FAQ thread also has some good info on this stuff.