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Old November 6th, 2005, 08:09 PM   #1
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Fuel Injection Questions


I have a few questions about some fuel injection. I want to do a few things to my LT-1 like... a cam change (cc306), Long tube headers w/true dual exhaust, a 2,800 to 3,000 stall, and some mild head work. Then a set of either 3:73's or 4:11's.

What I am having trouble figuring out is... what injectors? What lb/hour? What fuel pump? What throttle body? What mm of throttle body? Stock TB is twin 48mm.

I know this is a chevy and all, but hey... I figure that it can't be all that much different.
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Old November 7th, 2005, 01:19 AM   #2
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Cams and exhaust aren't going to make your engine drink that much more fuel. I'd bet your stock injectors and pump will be fine unless you're planning on a blower way down the line. You could just port your twin TBs out to 50-52 mm also. That'd put more air into the engine.
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Old November 7th, 2005, 08:29 AM   #3
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In the calculators section, at the bottom, you can input your expected horsepower and find a suggested fuel injector size.
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Old November 7th, 2005, 08:38 PM   #4
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Cool thanks guys. I'll try out the calculators!
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Old February 10th, 2006, 11:31 AM   #5
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check out the lt-2 specs go from there
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Old February 10th, 2006, 11:32 AM   #6
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bore it out to a 379ci and its an ls-2
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