A little histiry on the CFI

1983 saw the introduction of the cross fire injection on the 5.0L Camaro/Firebird and the 5.7L Corvette. This system had two single throttle bodies mounted on opposite ends of a special manifold and allowed for better fuel atomization and velocity. It was good for a 20 hp gain over a carbureted 5.0L Camaro. The system was not perfect, and suffered from some of the same problems as its carbureted cousin such as manifold wetting and poor fuel distribution, and special problems such as icing of the throttle body bores under certain conditions, and a leaky air intake seal. Fortunately, the system was short lived as GM's engineers worked overtime on their next project and they would be greatly rewarded for. The Multiport Fuel Injection in 1985.

Another:
cross-fire injection

This is my page devoted to making more power and diagnosing the Chevrolet Cross-Fire-Injection induction system. Most people will tell you it sucks, or that it's severely lacking in power (which I don't deny!) but there ARE some modifications that can be done to give it substantial amounts of power.
A little history; the Cross-Fire unit was developed on a 305 for the Camaro, but TPI apparently didn't come into the scene until too late for the introduction of the '84 Corvette, so it was installed on the last year of C3 Corvettes (the '82) and the first year of C4 Corvettes ('84.) Once TPI was worked out, it was installed in the '85 Corvette. It was never really intended to be installed on a 350, and since TPI was just around the corner, was never really developed very well. Mind you, the original idea for a "cross-ram" manifold originally came from Chrysler. However, GM took the idea and tried it on the 1969 Camaro. It worked pretty well and has major popularity in the older Camaro realm.

With a little bit of development and changes, however, the Cross-Fire system can actually be beefed up quite a bit, some even say better than TPI. My main reason for retaining my CFI system is originality. (That and lack of funds.)
For those of you interested, the CFI Mailing list and web pages are at :

http://www.arasaka.com/cgi-bin/mailm...info/crossfire

http://www.enteract.com/~mikew


***Just in my thoughts, the CFI is a neat conversation pice. I am sure that now it will hold some value, but as for performance, naw.***

 

Dont you mean 1982?????

Because in 1982 there were 24,673 CFI cars made. (engine code LU5) For the Camaro & 19,847 Made for 83.

& your links dont work

 

Yes I DID actually mean 82. And as for the links Krazzy I apologize for not testing them first from the persons site that I got them from. Was just trying to find some info that might be helpful.

 

LOL I was going to say because I have an LU5 (CFI) 82 Indy pace car sitting in the drive way. lol & I got the build sheet in hand to prove it (getting ready to scan it in to the computer)

 

I hate you

edit: also my friend wants to know if you have to replace the sespension frequenly on the drivers side?

 

This kind of talk is NOT needed.

 

ok here's some facts.

82 and 84 corvettes and 82-84 camaros and firebirds came with it. here's what a friends of mine has done with his camaro. the fuel injection isn't the biggest restriction when it comes to the CFI. as proven by what we've done to it. the exhaust is. we gained 1.13 seconds goning from the stock set up to edelbrock 6872 headers, catco 6007 converter, and flowmaster catback. then ported the intake and added a 2100 converter and gained another .3 in the 1/4.

www.crossfireinjection.com

a crossfire specific board
http://www.crossfire.homeip.net/

 

http://www.x-ram.com/

 

didn't they used to call that the cease fire injection

Matt

 

but do you know why they did?



because on the camaros, the hood flaps open at WOT via the TPS. now when it rained, guess what? water got in and shorted the injector. so was it the design of the FI unit? no.

 

Lol! Don't you just love it? Every time something new comes out everyone says that the old stuff was crap and neverwas any good ,this kind of talk has been going since the invention of the wheel ,lol! Yes each new system might be better than the next,and each is an improvment of the first ,but at the time it was probably the best techknology we had. Yes some failed ,and some passed ,but most worked better than the previous so there isn't really a bad system ,or a good system ,only IMPROVED systems . This kind of discussion has been going on for ever remember the side draft carberator ,or the Weber ,how about the early FI ,was that crap ,I don't think so not at the time (compared to todays yes) it was the best thing around and everybody [B]wished[/B they had it . So my oppinion is not to say your system is bad ,but to say your system is old . So what can we do to make it better ,that is the way of the American Hot Rodder.