M'kay, so I installed an auto meter boost gauge, and I show about 17-20 on the vaccuum side, but when I come into "boost" the gauge stops at 0. Also, a lot of the time I don't seem to be boosting on the secondary turbo, I looked at my check valves and a schematic, and it seemed ok, but anything Semi-cheap that I could look at to maybe be the cause of this problem?

 

It sounds like you have an absolute boost leak, since you don't make boost at any rpm/gear. Check all of the hoses that see boost (all the 1" hoses, couplers, accordian hoses, etc.). It could be something as simple as disconnected hose. If you ever need any help dealing with the turbos, give me a ring on AIM.

http://www.autosportracetech.com/RX-7/rx7stuff.htm -- That link should help you out.

 

Start by replacing the check valves. $20 from Dale Clark. And look for a boost leak in the intercooler pipe couplings, like Walien said.

Dave

 

sounds like the problem I'm having...hmm right now the car's in the shop but then when it's out I'll check all the hoses and such to see if I'm having any leak. i don't have a gauge hooked up yet but I get that exact same feel. And I invested in some check valves by dale clark

 

My 2cents worth, I was having the same problem and ended up finding a gaping crack in the hose going from the y-pipe to the bov

 

Disco, my intake gasket is on the way, and I'm gonna swap all the hoses out on WED. I'll let ya'll know what turns up.