Contour Enthusiasts Group Archives Forums Modifications Forced Induction Nozzle Placement

I don't know but I'm thinking 15psi is fine. High enough to still be provide fuel through the fuel jet when it starts to cut off but low enough that a pressure fluctuation won't shut it off. Hell, I've never seen the fuel pressure drop below 30 even under load but with a stock pump AND nitrous on the rail it may have a fluctuation.

I ran the 7psi safety switch but that was only because that was what was available at the time.