DemonicPupil

Anyone have a list or table of vaccuum/boost at XXXX RPM?? Would like vac nums for N/A and boost nums for TII/SC. Installing a guage to check how my system is working (have a bouncy idle) and planning on installing a SC later so would like to know what I should be expecting numbers wise at certain RPM's. Don't want to destroy my motor by leaning it out too much.

BTW I tried to search several times... this is what I got for searching, so hold the flames.

Proxy Error
The proxy server received an invalid response from an upstream server.
The proxy server could not handle the request POST /search.php.

Reason: Error reading from remote server

NZConvertible

It doesn't work like that. There are many, many other variables besides rpm that affect manifold pressure. Throttle position is the most important and obvious one, but compression, turbo size, wastegate size, intake/exhaust mods, etc all have an effect.

And if you don't want to run lean, you need to measure AFR, not manifold pressure.

DemonicPupil

Fair enough, a bit more specific...

If I had a SC blowing and was trying to keep it from going above 6psi (I assume I use a BOV for this part) the SC should be building boost even at idle or low RPM. Will this boost show at idle? Or would it show when the throttle is opened?

I assume that even while the throttle plates are closed, a little air can still get by them? I'm running an 86 N/A so another assumption I make is that with the SC running, my vac would be lower at idle than it is without the SC?

Sorry I'm a noob to boosted applications, but I don't want to blow up my motor. I wanted to buy the A/F Ratio guage yesterday, however I wasn't sure if it was compatible with the 7, I had no idea how it would be hooked up.