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View Full Version : Fuel pressure without a RRFPR? N/A 11-27-2002, 05:44 AM I was curious what fuel pressure everyone is running at with their RS-T setups? I'm not going to be using a RRFPR so I wanted to know what fuel pressure the rest of you non rising rate owners were using? Is 34 pounds a good amount? stealth-wrx 11-27-2002, 08:53 AM i would run a rising rate for sure. you never want to go lean going into boost. i would also set it a 40-45 psi at idle. here is mine. adamsrs 11-30-2002, 08:04 PM I am runnign Shiv's Malpassi 1:1 ratio FPR and running 38 PSI at idle and 53 PSI at WOT with 8 psi of boost.,......runs fine adamsrs Impreza RST 12-01-2002, 02:27 AM Originally posted by adamsrs I am runnign Shiv's Malpassi 1:1 ratio FPR and running 38 PSI at idle and 53 PSI at WOT with 8 psi of boost.,......runs fine adamsrs What kind of engine management are you running? adamsrs 12-01-2002, 01:19 PM None yet....i WILL be getting a LINK and RC 550s, but even at WOT my EGTs are fine! adamsrs Z1 Performance 12-04-2002, 07:57 AM Adam - if you are running 38 psi at idle, and 53 psi at OT with 8 psi of boost, you do not have a 1:1 FPR..you ahve a 2;1...that being said, that is an excellent FPR to use. Adam Z-1 Performance www.z1auto.com N/A: what setup are you planning on running, and how much boost initially? other mods: injectors, engine mgmt....they all play into the picture. Persoanlyl, I'd pick a 2:1 fpr over a piggyback like a SAFC any day, at least with stock injectors. adamsrs 12-04-2002, 11:59 AM Z1: Shiv told me it is 1:1 to make it easier to tune with! adamsrs adamsrs 12-04-2002, 11:59 AM this is the Malpassi that comes with his fuel rail kit! adamsrs DanMan 12-04-2002, 07:16 PM Originally posted by Z1 Performance Adam - if you are running 38 psi at idle, and 53 psi at OT with 8 psi of boost, you do not have a 1:1 FPR..you ahve a 2;1...that being said, that is an excellent FPR to use. Well, that Malpassi is a 1:1, thats for sure. My guess is Adam is reading his fuel pressure at idle (under vacuum) instead of static. Dan N/A 12-08-2002, 07:31 PM I'm borrowing a friends pc right now. Moving sucks. Link2, WRX injectors for now switching to a set of larger 550cc injectors later on, the SCC project 2.5RS's turbo kit, GTR fuel pump, dual feed fuel rails, and a SARD FPR. With good enough engine management there should be no need to have a rising rate shouldn't there? I've owned alot of turbo cars before and never had to run a RRFPR before. Just wonder if this is something specific to the RS-T then. |
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