ashley newbert Posted November 14, 2014 Share Posted November 14, 2014 Anyone ever put a fuel pressure reg on a standard 4efe .... If so did you get any gains?? Quote Link to post Share on other sites
Gainzy Posted November 14, 2014 Share Posted November 14, 2014 It doesn't need one it would be pointless imo Quote Link to post Share on other sites
daniel_g Posted November 14, 2014 Share Posted November 14, 2014 This is the one ive put in my N/a GT, its an OEM Gen3 4EFE rail & FPR from a very late spec JDM N/a. Doubt it will make any difference though lol.Its different from the earlier ones, its got two diaphragms instead of one so guessing its a higher pressure ?Comparing to the Gen2 rail & FPR Quote Link to post Share on other sites
mikey4410 Posted November 14, 2014 Share Posted November 14, 2014 as above.all unneeded. Quote Link to post Share on other sites
daniel_g Posted November 14, 2014 Share Posted November 14, 2014 A couple of the German guys have cracked 100bhp and both use FPRs. Doubt it makes a difference but if you have a wideband and can tweak the fuel pressure to get your AFRs bang on then theres nothing wrong with that. Quote Link to post Share on other sites
Stu Posted November 15, 2014 Share Posted November 15, 2014 Its different from the earlier ones, its got two diaphragms instead of one so guessing its a higher pressure ? Thats a pulsation dampener, has nothing to do with fuel pressure. Quote Link to post Share on other sites
daniel_g Posted November 15, 2014 Share Posted November 15, 2014 Thats a pulsation dampener, has nothing to do with fuel pressure.Haha never had a proper look just fired it on. Have read the Glanza S & or Gen3 run a higher pressure do you know if thats true ? Quote Link to post Share on other sites
ashley newbert Posted November 15, 2014 Author Share Posted November 15, 2014 Thanks for the input guys appreciated Quote Link to post Share on other sites
morgey Posted November 15, 2014 Share Posted November 15, 2014 Mine had one on it when i got it but jad no guage. Its still laying about in my room somewhere Quote Link to post Share on other sites
Stu Posted November 15, 2014 Share Posted November 15, 2014 Sorry no idea on pressure, maybe google the part number thats on the top of the reg. Back in the day when we had zero money or less but still wanted to modify cars, we used to knock the top down on the stock fuel regs with a hammer to raise the line pressure. Down side is you can knock them too far or they can split if your not careful but it used to work. Quote Link to post Share on other sites
rob_bower Posted November 15, 2014 Share Posted November 15, 2014 I had one in my sr for a bit it was a rrfpr though pulled a bit harder low down but really needed setting up Properly so I pulled it off again as I was about to boost it anyway. Quote Link to post Share on other sites
richardc9052 Posted November 16, 2014 Share Posted November 16, 2014 Had one on mine but was far from.standard.. Was running itbs when I had it fitted Quote Link to post Share on other sites
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