question about fuel upgrade

[legit240sx]

while doing an injector upgrade on a rb20 is it a must to upgrade to a adj. fuel pressure regulator as well? I would think but i would like to know for sure.thank you

[Carl H]

all walbro pumps need an afpr to bring the pressure back to spec...that being said just about any aftermarket fuel pump will overrun the stock regulator and your pressure will be much higher than spec.

[legit240sx]

got it would the nismo rb25 AFPR replacement plate fit on the rb20?

[Carl H]

it should...nissan uses the same frp footprint on every car just about.

[legit240sx]

awesome and i shouldn't have a problem with the stock fuel rail w/bigger injectors?sorry sholud have posted all three Q

[Cjmartz2k]

Just playing Devil's advocate, the aussie guys say they use the stock FPR's well into the 600hp range with no problems. The aussies spread around a lot of bulls*** info though, so take it for what it's worth.

That being said, I have run one ever since I put a walbro in for the same reasons Carl H mentioned. I've never seen anybody run an aftermarket pump with a stock FPR though, so I can't say I've seen it have increased pressure first hand. Aeromotive FPR will flow 1000hp worth of fuel and costs $150, so what's the price for one in the scheem of things.

[legit240sx]

cool man thanks both of you

[Joe]

ok random question

legit whats with your sig picture? that random line?

and i ran a nismo FPR on my 25 for years, worked great.

[240z4u]

I bought my aeromotive FPR used over 12 years ago... money well spent.

Evan

[legit240sx]

haha thats a good Q, lol the line is from unforgivable on youtube search,watch, laugh

pic is of my project for the last year and a half as well as my first car/how i started on cars. Been tryin to learn all i can ever since and have a friend whos a mech. and he's been helpin me out and teaching me stuff along the way. All the other stuff he don't know about rbs ive been fishin on here some info is b/s some is good.

when i first started had the idea of a rb20dett and went with it, got everything hooked up and in the car but major blow by and is now in the machine shop with a bunch of goodies waitin for it.

thus is my sig


Modified by legit240sx at 12:16 PM 6/21/2009

[kumasan616]

What model aeromotive FPR did you purchase?

[Darius]

I've never seen anybody run an aftermarket pump with a stock FPR though, so I can't say I've seen it have increased pressure first hand.

Believe it or not, but I'm still using the stock FPR on my setup. My fuel mods are only larger injectors and a Denso Supra TT fuel pump. The base fuel pressure is still 43 psi like stock.

[Carl H]

the supra pump will not overrun the stock regulator like most aftermarket pumps as it is designed to work with a standard fpr as equiped on the supra.