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

Are these injectors large enough?

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Old Feb 17, 2012 | 08:48 AM
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Default Are these injectors large enough?

I have 37 pound Delphi injectors, thought they were 30s (bonus!). They were in a 96 and I would be putting them in my 1994. My current mods are..... mild head/cam/RR car with bolt ons and a Vortech running 6lbs all on a stock cubed block.

Will they work on the low boost?

Thx
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Old Feb 17, 2012 | 09:15 AM
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Originally Posted by fuzzyjk
I have 37 pound Delphi injectors, thought they were 30s (bonus!). They were in a 96 and I would be putting them in my 1994. My current mods are..... mild head/cam/RR car with bolt ons and a Vortech running 6lbs all on a stock cubed block.

Will they work on the low boost?

Thx
probably at higher then stock FP. But im not sure, i dont know alot about FI
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Old Feb 17, 2012 | 09:34 AM
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Those injectors should be big enough for around 450 hp (crank) with a .6 BSFC, ASSuming the rated flow is at 43.5 psi and that is the pressure you are running. I used 90% IDC max on the RC fuel injection calculator to arrive at that conclusion.
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Old Feb 17, 2012 | 10:03 AM
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do you know how much power you make now?
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Old Feb 17, 2012 | 10:44 AM
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No idea on the current power. I am guessing around 300 at the wheel and the supercharger will add about 100 whp more. I would say it would be around 500 at the crank. So.....at 43.5psi, can I add a booster pump to bring up the pressure or am I all "wet"?
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Old Feb 17, 2012 | 11:50 AM
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To bump up pressure on an LT1 get an afpr Holley makes a rebuildable one good to 65psi & as low as like 35psi Got one on my motor
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Old Feb 17, 2012 | 12:10 PM
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it should be close, if you run out of fuel top end, you can just limit your rpm until you get larger injectors.
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Old Feb 17, 2012 | 04:21 PM
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Guess I will install......thx.
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