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SHIFT_*grind* · 08-05-2008, 12:11 PM

You better ditch that stock fuel pump before you upgrade anything else...

fc3sace · 08-05-2008, 12:31 PM

I had my 255 installed but i took it out because the car was running like sh@# cause i had a stock fpr. Gonna get a new FPR then im putting it back in. Its running fine now compared to before but obviously it wasnt tuned either.

!Zar! · 08-05-2008, 04:05 PM

Quote:

Originally Posted by fc3sace

I had my 255 installed but i took it out because the car was running like sh@# cause i had a stock fpr. Gonna get a new FPR then im putting it back in. Its running fine now compared to before but obviously it wasnt tuned either.

Stock fpr works fine with a 255.

codyace · 08-05-2008, 05:36 PM

Quote:

Originally Posted by !Zar!

Stock fpr works fine with a 255.

Works fine and works how it should are very different. Most of the time the stock FPR (in cars I've worked on) ends up (with the 255, and the 255hp pumps) making the car run a few psi higher than needed.

This certianly won't hurt and engine, but will fatten the entire powerband (obviously).

!Zar! · 08-05-2008, 06:20 PM

Quote:

Originally Posted by codyace

Works fine and works how it should are very different. Most of the time the stock FPR (in cars I've worked on) ends up (with the 255, and the 255hp pumps) making the car run a few psi higher than needed.

This certianly won't hurt and engine, but will fatten the entire powerband (obviously).

Sounds like a faulty fpr if it can't even do it's job.

The op should not have been experiencing the problems he stated with such mods.

punxva · 08-05-2008, 04:18 PM

Quote:

Originally Posted by fc3sace

I had my 255 installed but i took it out because the car was running like sh@# cause i had a stock fpr. Gonna get a new FPR then im putting it back in. Its running fine now compared to before but obviously it wasnt tuned either.

yeah its your actual fpr itself since you can pump as much fuel as you want, and the fpr's job is to limit it to a certain psi no matter how much it's flowing. you probably will put better numbers done after you just replace the fpr alone. since it could be causing small fuel problems but you just noticed it more with a better flowing pump which it couldn't handle

fc3sace · 08-05-2008, 04:34 PM

originally i think my stock fpr went bad so in turn jus ran like Sh**.
either way im jus gonna replace it with a aftermarket fpr. I would have definitely made a little more power considering i was leaning out cause the stock fuel pump could'nt keep up.

08-05-2008, 12:11 PM	#1
SHIFT_grind Nissanaholic! Join Date: Nov 2004 Location: NWA Age: 42 Posts: 2,066 Trader Rating: (7) Feedback Score: 7 reviews	You better ditch that stock fuel pump before you upgrade anything else... __________________ My seller review thread

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08-05-2008, 12:31 PM	#2
fc3sace Leaky Injector Join Date: May 2008 Location: California Posts: 72 Trader Rating: (3) Feedback Score: 3 reviews	I had my 255 installed but i took it out because the car was running like sh@# cause i had a stock fpr. Gonna get a new FPR then im putting it back in. Its running fine now compared to before but obviously it wasnt tuned either.

08-05-2008, 04:34 PM	#7
fc3sace Leaky Injector Join Date: May 2008 Location: California Posts: 72 Trader Rating: (3) Feedback Score: 3 reviews	originally i think my stock fpr went bad so in turn jus ran like Sh**. either way im jus gonna replace it with a aftermarket fpr. I would have definitely made a little more power considering i was leaning out cause the stock fuel pump could'nt keep up.