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LT1-LT4 Modifications 1993-97 Gen II Small Block V8

SVO Injectors?

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Old Jun 10, 2009 | 10:18 PM
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Default SVO Injectors?
What do 30lb Redtop SVO injectors flow at with stock LT1 fuel pressure?

Sorry for the stupid question.
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Old Jun 10, 2009 | 11:38 PM
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the ford injector are designed to run at 30lbs at a fuel pressure of 35lbs. Gm lt1 cars have a fuel system pressure of about 42.5. This makes the 30# svo's run at about 35 to 37 pounds.
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Old Jun 10, 2009 | 11:53 PM
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More like 32lbs... (31.65lbs to be exact). You'll find the SVOs on LT1s on a bolt on setup usually start to get near 128 in the 32+ range.
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Old Jun 11, 2009 | 12:01 AM
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Originally Posted by buffman
More like 32lbs... (31.65lbs to be exact). You'll find the SVOs on LT1s on a bolt on setup usually start to get near 128 in the 32+ range.
Get near 128?

Sorry, still a newb.
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Old Jun 11, 2009 | 01:08 AM
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Originally Posted by Counted Out
Get near 128?

Sorry, still a newb.
Hes reffering to your long term fuel trims. When you get a scanning program you'll be able to put 1+1=2.
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Old Jun 11, 2009 | 11:48 AM
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30# svo's work fine on my 12:1 383 just for a point of reference
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Old Jun 11, 2009 | 11:54 AM
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Originally Posted by BLK,97,T/A,M-6
the ford injector are designed to run at 30lbs at a fuel pressure of 35lbs. Gm lt1 cars have a fuel system pressure of about 42.5. This makes the 30# svo's run at about 35 to 37 pounds.
(1 bar = 14.5037738 psi)
Our cars run @ 3 bar (~43.5psi)
IIRC, Fords run @ 2 bar (~29psi).

I am using stock Cobra 39# injectors. If you are getting a mail order tune, every mail order tuner should know how to tune for SVO 30# injectors, they are one of the most common injectors used on our cars.
Last edited by ss.slp.ls1; Jun 11, 2009 at 11:59 AM.
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Old Jun 11, 2009 | 12:42 PM
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delta pressure for most all Ford Injectors are rated at 39psi....
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