what should my fuel pressure be

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10-10-2002, 11:30 PM

rxotic

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how high should the fuel pressure be at WOT running 9 psi? mine goes to around 50 just wondering if it should be higher? mods; dp, mp, cb, non seq.

10-11-2002, 12:57 AM

Dumbrotorkid

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i wouldnt worry bout pressure right now....u need to upgrade ur ecu if u haven't so already or caBOOOOOOOM!!!!!rebuild time

10-11-2002, 12:58 AM

Dumbrotorkid

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50-60 sounds about right too...i think.but don't take my word for it(said like the dood from reading rainbow)

10-11-2002, 01:38 AM

rxotic

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Quote:

Originally Posted by Dumbrotorkid' date='Oct 10 2002, 09:57 PM

i wouldnt worry bout pressure right now....u need to upgrade ur ecu if u haven't so already or caBOOOOOOOM!!!!!rebuild time

I am only running 9 psi

10-11-2002, 02:13 AM

vosko

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43psi i think

10-11-2002, 02:20 AM

jspecracer7

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14.5 psi = 1 kg/cm2.

When setting the fuel pressure gauge, turn the car on and disconnect the vacuum source that goes to the fuel pressure regulator. Set it for 3 kg/cm2. Plug the vacuum source back on to the fpr. Drive around and it should go up 1 kg/cm2 of fuel pressure for every 1 kg/cm2 of boost.

10-11-2002, 03:26 AM

Robbomaz

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A good basic rule is 40 psi + boost. ie 10lbs boost, 50 psi rail pressure.

Although 'fuel returned to the tank' and pulsewidth at max demand are important too