Quote:
Originally Posted by jspaeth
WRONG!
THe car reads 36 psi FP because the vacuum is -7 psi. So when you boost 7 psi, that is actuall 36 + 7 psi = 43 psi when the manifold is at 0 PSI (atmostpheric)
......PLUS an additional 7 psi on top of that for the boost!
So it should be 50 psi.
Someone please chime in so it's not just me on this.
|
When your car is running, and the vacuum line is disconnected (simulated WOT, but without boost) it should read 43.5 psi. Knowing what the fuel pressure is, when idleing, should be somewhere in the 34-38 range...but this measurement is silly as it can be so different. Again, the main measurement should be vacuum line off, car idleing, 43.5.
So at 10 psi of boost you should see 53.5, 20 psi of boost 63.5.