How low can I safely set my fuel pressure?

[GTLee]

Hey Guys,

Thanks for all the wisefull replies in the "Is 209 rwhp Ok for my mods" thread. By reading the replies it seems as though I am seriously over injected.

So I went to the Fuel System Analyzer in Mustangworks.com and plugged in 250 fwhp (~ 209 rwhp) with 24# injectors and it told me my injectors only need 25 psi to supply the necessary fuel to the engine.

Also note that my mods in my signature made 200rwhp initially at the stock 40psi. The guy at the dyno shop lowered the fuel pressure to 35psi and I got an extra 8rwhp and 11ft/lb of torque. It was late so he couldn't mess with the fuel pressure again and left it at 35 psi.

Can I safely lower my fuel pressure to 30psi. By "safely", I mean no detonation. I am running 93 octane fuel and 14 degrees of timing.

Thanks


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90 GT -
-Engine: K&N, 75mm MAF with 24# Injectors, 65mm TB, Trick Flow Street Intake, 1.7 Roller Rockers, Adj FPR (set at 35psi), 190lph FP
-Exhaust: MAC 1 5/8" Headers, Catco 2.25" h-pipe, MagnaFlow mufflers
-Drivetrain: World Class T-5Z, Aluminum Driveshaft, 3.55 gears
-Suspension: Subframe Connectors and K-Brace, KYB Shocks and Struts, BBK Upper and Lower Control Arms