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the3SecondJerk
08-22-2003, 11:37 AM
I got a Nismo FPR because my SR is running Super rich so I figured one cause may be the walbro 255 on the stock FPR. My question is what is stock fuel pressure on an SR? and does anyone else have the Nismo FPR?

Yoshi
08-22-2003, 01:51 PM
Wayne at phase2 told me 36psi... and you reach boost, it should increase accordingly, ie 7psi of boost should be 43psi fuel (36+7). Walbro's do run high, resulting in too rich of a fuel mixture.

Kreator
08-22-2003, 03:58 PM
Ummm ok, i'm completely unsure about this but i'll give my .02 cents:

I have an fpr in my car that i replaced my stock fpr with (cuz i fooked it up). Now that fpr looks nothing like my stock one, nor the s13 one, yet almost identical to the one i saw on an s13 redtop. So i'm guessing i'm running an sr fpr.

Now my gauge shows ~38psi at idle, that is ~46psi at wot (n/a), and thus ~53psi at 7psi of boost.... again, this is as accurate as u can get with a 1.5" gauge.

You can now completely disregard this post, as i have no clue if my fpr is from sr or not