Im running a 305 tpi, I have a crane Hydraulic roller cam 2032 270/276 452/465 112LS I put in a crane adjustable fuel pressure regulator, i have the screw all the way out and it is hitting the plenum, im at 55lbs at idle. This is giving me hard starts. I cant lower the fuel pressure any more, does anyone have an ideal pressure i should be at? I know this is way too much. Thanks!



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Ant
87 IROC 305 TPI
Compucam 2032
SLP 3" cat back
Gutted Cat
Custom PVC Cold Air/Ram Air
Gutted Maf
TB coolant Bypass
Ported Plenum
Accell Coil/Cap/Rotor
Bosch +4 Platinum
Richmond 3.73's
700R4 Trans-Go shift kit
Crane AFPR
Performance Resource Chip

 

Might it be that the check valve in the fuel tank isn't allowing the fuel to come back? Just a guess.

 

stock pressure is like 46 PSI, a good HIGH psi would be 50. i would recomend 48 PSI

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- David
88' GTA 5.7L TPI MODS---> air foil, K&N, Shift Kit, 180* therm, TB bypass, Gutted CAT, Flowmaster 80 Series

 

then cut the screw and reinstall or get another shorter one from ace,lowes..i.e

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92 F-BIRd FORMULA T-TOP (WHITEKNIGHT) 5.7L-98,700R4B&MSATURDAY NIGHT
SPECIALTRANS 2500STALL,54MM-AS&M TB-PORTPLENT,LARGETUBRUN,L-98 ALUM. HEADS PORTED
CRANE AFPR,45 PSI,UNDER PULLEYS K&NCOLD AIR KIT,160THERMO,ELDB HEADERS W/3 1/2 Y PIPE 2 RINO CAT 2 4INCH PIPE 2 FLOW,
MSDDIST,6AL,8MMWIRES.
2BLASTERCOIL.ACCELL PLUGS
CUSTOM FASTCHIP BY ED WRIGHT,AUBERN POSI W/ RICHMOND 3.23 AND MOSER AXEL SPLINES CRYGO FROZEN,TUBE FRAME CONNEC
PST KIT.1LE BRAKE KIT! MANY MORE MODS FORESEEN IN MY ERA!13.38ET @ 107.75MPH

[This message has been edited by ONEFORMULAOVERALL (edited September 12, 2001).]

 

Yeah, sounds way too high. The pressure controls WOT, like bigger jets on a carb. The computer will handle the closed loop injector pulse, as long as it stays below 60? It should maybe be a touch higher than stock at best.