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Old 02-16-2009, 07:44 PM
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Crossfire Fuel Injection- Retrofit

Does anyone know if any company makes a retrofit wiring harness and computer for the old 82-84 Crossfire Fuel Injection used on the Corvette, Camaro and Trans Am?

Thanks,

1930u

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Old 02-18-2009, 11:59 AM
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I don't know of any harnesses but you can probably find a lot of the set-up because these did not perform well and most took them off. These are a twin one barrel set-up so you would get the same from a TBI. jmho
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Old 02-18-2009, 06:07 PM
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Yes, I know there out. I just don't want to buy until I know for sure I can find a after market harness and computer. I understand they're single injector TBI's but I don't understand how GM wired them to work as a pair. I assume it was a progressive set up.
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Old 02-18-2009, 06:58 PM
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Quote:
Originally Posted by 1930u
I assume it was a progressive set up.
You assume incorrectly. The fired together. Just the same as if you took a TBI and cut it in half.
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Old 02-18-2009, 07:50 PM
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Thanks all. I will keep looking for a harness.
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Old 02-18-2009, 11:04 PM
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Forget looking for a specific harness, do like me and others on the Crossfire Injection forum did, take the stuff off a GM truck with TBI and just seperate the harness far enough to reach both injectors.

I visited a local junkyard to find all the TBI stuff I could from several trucks and walked away with enough stuff to make many mistakes and still have a good looking AND working setup, now if I just had the time to work on it.

I have both the Camaro and Corvette air cleaner assemblies, but think I will go with something different if I can't get the Camaro piece to look and work right, the Corvette asembly won't work in my Malibu due to the HVAC housing.

The injectors both fire at the same time, but feed 4 cylinders each just like the TBI but the only difference is the shape and size of the manifold, and the injectors are seperated much farther apart, this was GM's first attempt, which worked, but someone go the idea to change the porting and runner placement and length and the TPI system quickly came out fixing the main problems the CFI system had.

Basically if you were to remove a TBI intake and injector unit, split the harness and re-install the CFI intake with the proper sized injectors, you should have NO problems, as long as you followed up with the proper TV cable for the TH-700R4 transmission, if so equipped.
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Old 02-19-2009, 07:51 AM
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Quote:
Originally Posted by M&M CUSTOM
Forget looking for a specific harness, do like me and others on the Crossfire Injection forum did, take the stuff off a GM truck with TBI and just seperate the harness far enough to reach both injectors.

I visited a local junkyard to find all the TBI stuff I could from several trucks and walked away with enough stuff to make many mistakes and still have a good looking AND working setup, now if I just had the time to work on it.

I have both the Camaro and Corvette air cleaner assemblies, but think I will go with something different if I can't get the Camaro piece to look and work right, the Corvette asembly won't work in my Malibu due to the HVAC housing.

The injectors both fire at the same time, but feed 4 cylinders each just like the TBI but the only difference is the shape and size of the manifold, and the injectors are seperated much farther apart, this was GM's first attempt, which worked, but someone go the idea to change the porting and runner placement and length and the TPI system quickly came out fixing the main problems the CFI system had.

Basically if you were to remove a TBI intake and injector unit, split the harness and re-install the CFI intake with the proper sized injectors, you should have NO problems, as long as you followed up with the proper TV cable for the TH-700R4 transmission, if so equipped.
+1 it was just more less two 4 cylinder set-up each throttle body feeds half(every other cylinder in firing order) same as a TBI. they just didn't flow real well.
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Old 03-29-2009, 06:19 PM
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Camaro 305 Crossfire Change over

Hello. I am working on a 1982 Camaro CFI and debating whether to change over the CFI for an Edelbrock 4BBL. I have read in many sites that this can be done but have yet to find a step directions on how to do it. And what needs to be change/removed/replaced?

I would appreciate it if anyone can share some insight.
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Old 03-29-2009, 08:46 PM
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Crossfire Fuel Injection used on the Corvette,

take it off and get 750 holley and rpm edelbrock intake it will run better then Crossfire Fuel Injection used on the Corvette, and will not need cp.or wiring easy to do you can do it if you need help let me on veet81
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