what fuel pressure?

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Mar 9, 2007 | 03:28 PM

1320 killer

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what fuel pressure?

Well, just like the title says. I have tried to search this and I can't seem to find the answer. I have a 99 camaro ls1 with all the bolt ons and 42 pound injectors. I have my fuel pressure set at 57 psi. what does everyone else have their pressure set at?

Mar 9, 2007 | 07:33 PM

code4

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Quote:

Originally Posted by 1320 killer

factory psi is 58, this is where i have mine set at

Mar 12, 2007 | 07:46 AM

z28drag

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stock pressure 57-58 psi same thing, this pressure is need to run the ls1 engine...

Mar 12, 2007 | 10:00 AM

1320 killer

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I am not sure how true it is but I was told that if you run svo injectors, your ls1 pressure needs to down 3 to4 psi. does anyone know if this is true

Mar 13, 2007 | 03:29 PM

code4

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Quote:

Originally Posted by 1320 killer

I am not sure how true it is but I was told that if you run svo injectors, your ls1 pressure needs to down 3 to4 psi. does anyone know if this is true

I have never heard that, you can vary your fuel pressure if you want as long as your tuned for that pressure.

Mar 13, 2007 | 07:21 PM

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Quote:

Originally Posted by 1320 killer

I am not sure how true it is but I was told that if you run svo injectors, your ls1 pressure needs to down 3 to4 psi. does anyone know if this is true

SVO injectors are generally rated at 39PSI.
The industry standard is generally 43.5PSI.
This would equate to an apx. 5.6% increase in fuel flow over the SVO pressure rating.
The LS1 cars run at 58PSI nominal which is an apx. 21.9% flow increase over the SVO pressure rating.

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