Fuel Pressure

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04-21-2003, 01:21 PM

Bigphlip

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Fuel Pressure

Hey fellas just a quick question. I have a 2k Si with AEM CAI, DC 4-1 header, Greddy sp exhaust, and an adjustable FPR. What is the optimal fuel pressure to run with these mods. Right now I'm running 48 psi @ wide open throttle.

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04-21-2003, 01:23 PM

poison

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Re: Fuel Pressure (Bigphlip)

48 psi at WOT (with the vacuum off) is good for that.

I'm also assuming you have the stock fuel pump correct?

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04-21-2003, 01:24 PM

Bigphlip

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Re: Fuel Pressure (poison)

Yup stock fuel pump

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04-21-2003, 01:52 PM

B_CRUZ!

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Re: Fuel Pressure (Bigphlip)

why do people remove the vacuum?

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04-21-2003, 01:56 PM

Bigphlip

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Re: Fuel Pressure (BCRUZ)

You remove the vacuum hose frm the FPR so you can see what pressure you are running a WOT without pissing off the neighbors.

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04-21-2003, 01:56 PM

poison

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Re: Fuel Pressure (Bigphlip)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Bigphlip »</TD></TR><TR><TD CLASS="quote">You remove the vacuum hose frm the FPR so you can see what pressure you are running a WOT without pissing off the neighbors.</TD></TR></TABLE>

lol, good point. this is correct though