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Old 04-06-2005, 07:52 PM   #1
redsn95vert
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Default fuel pressure ?????

I just installed 24lb fuel injectors and a new mass air meter and I have a new adj. fuel pressure reg. and I'm waiting to install it till I'm sure I know what pressure to set it to. Any ideas of what I should set it to.
Thanks
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Old 04-07-2005, 08:45 AM   #2
Dark_5.0
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Default Re: fuel pressure ?????

Set it at 38 psi with vacuum line off and forget about it. Your ecu will adjust the injector pulse width accordingly from there.
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Old 04-07-2005, 10:12 AM   #3
redsn95vert
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Default Re: fuel pressure ?????

Thanks.....but won't that create a lean condition, isn't the stock pressure 48psi. I may be wrong with the stock pressure.
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Old 04-07-2005, 12:51 PM   #4
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Default Re: fuel pressure ?????

Quote:
Originally Posted by redsn95vert
Thanks.....but won't that create a lean condition, isn't the stock pressure 48psi. I may be wrong with the stock pressure.
Yes you are wrong about the stock pressure by about 10 psi

38 psi!!!!!!!!!!!!!!!!!!
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Old 04-09-2005, 12:05 AM   #5
dcarlson
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Default Re: fuel pressure ?????

Technically I believe the injectors are rated at 39 psi. Usually the stock pressure is 40 to 44 at WOT (no vacuum). They usually run stronger when set at 38.
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Old 04-09-2005, 06:42 AM   #6
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Default Re: fuel pressure ?????

I agree!!!!
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