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fuel injector size

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Old 06-07-2013, 02:41 PM
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Car: 1992 Z28
Engine: 5.7L LS6
Transmission: 4L60E
Axle/Gears: 3.42
fuel injector size

I have a 1988 Camaro with a stock 5.7 tpi and i just changed to the EBL computer.

I have a vortech supercharger i am going to install along with a bigger fuel pump and need a recommendation on what size fuel injectors to run.

I do have hooker headers and exhaust and i am going to have the manifold ported before putting it all together.

I will not be running a fuel management unit so i know i need bigger injectors, i just don't know what size.

Thanks, Rich
Old 06-07-2013, 02:50 PM
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Car: 89 Iroc-z
Engine: 555 BBC Turbo
Transmission: TH400
Axle/Gears: Strange 12 bolt 3.42
Re: fuel injector size

How much boost? Probably looking at 300-400 whp depending on how hard you wanna push stock bottom end. May only need 30-36 lb injectors considering slightly richer mixture for boosted cars
Old 06-07-2013, 05:52 PM
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Engine: 5.7L LS6
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Axle/Gears: 3.42
Re: fuel injector size

I am not sure how much boost the Vortech puts out, my guess is 6 psi.
Old 06-07-2013, 06:04 PM
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Re: fuel injector size

30-lb injectors will be just fine...
Old 06-07-2013, 11:08 PM
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Re: fuel injector size

28lbs ones worked for me when the engine was mostly stock.
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