2003_SuperSport Posted July 16, 2013 Report Share Posted July 16, 2013 Hey guys... I just have a quick fuel pressure question... I understand my 03' return style fuel system and regulator operate at 56psi when primed and running... I just got my guages finaly installed last week (better late than never) LOL... And I am indeed running at 55-58psi normal driving... When I go WOT my pressure goes up to 64-66PSI and holds steady until I let off... I understand if the pressure drops below my regulator settings under WOT I am running out of pump... But what about raising up to 65PSI from 55PSI... Mods are in my sig... Please help me understand what to look for with fuel pressures and whats good and whats bad... Thanks Also my boost seems a little low for a 2.8" pulley but it may not be for my mods- it is at 8.25-8.5 under WOT... My IAT's are another issue LOL way way way to high but I am working on getting a 50-75shot nitrous to combat them Quote Link to comment Share on other sites More sharing options...
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