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Old 01-16-2005, 09:49 AM
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GM crossfire injection

I am thinking about installing two barrel carbs on a GM crossfire
injection manifold. Not sure if it will work. Would like any information on this. Thanks ribbit
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Old 01-16-2005, 11:13 AM
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Have you seen the size of those intake ports? They are so small that velocity must be very high. This was/is probably b/c GM had a problem with fuel puddling in the intake. use caution
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Old 01-16-2005, 11:26 AM
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Um, the crossfire is a piece of junk. I had one on an 83 Z28 and they are really limited performance wise. You could probably put 2 two barrel carbs in place of the fuel injection but to me it would be pointless unless you are going for looks and don't care about any performance over 4500 rpm due to the poor plenium/runner design.

I put a Holley four barrel on the Z28 with an edelbrock performer intake and headers and picked up almost two seconds in 0 to 60 times over the factory configuration.

The crossfire was GM first modern performance fuel injection set up and it was brutal due mostly to the electronics but also the design itself.

Good luck if you decide to attempt this.
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Old 01-16-2005, 05:13 PM
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What the guys said above is the truth. The design was real poor, the runners are half the size of the head ports, the injection wasn`t the problem with cease fire injection, it was the manifold itself.
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Old 01-21-2011, 11:32 PM
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I have one in my 84 Corvette. It runs like a dream. The system is very easy and is not complicated. Map, temp sensor, egr, knock sensor, TPS, and acouple of other things. If you don't know, study how the T.B.I works. Thats what I did. I used to be scared of the Cross-fire.
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Old 01-21-2011, 11:46 PM
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This thread is 6 years old.
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Old 01-22-2011, 08:21 AM
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Quote:
Originally Posted by DoubleVision
This thread is 6 years old.
Where do these dead threads come from?
We used to call them "Campfire Injection" when I worked at Cox Chevrolet
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