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Re: A series Ford CFI bolt on!!

Subject: Re: A series Ford CFI bolt on!!
by ddgonzal on 2005/10/27 5:19:20

I love the idea! I had the CFI in my old '84 and '85 LTD (Ford 5 liter), and they also were in every 83-85 Mustang V8 automatic. Very smooth, very reliable.

Performance should be better than Weber 32/36. Except ...Quote:

The Ford CFI computer runs on a Lambda and is self tuning...It gets its firing signal from the coil....(as far as researched similar to camira delco unit

It is only self-tuning within a very limited range. They are a "speed-density" system, which is programmed for a certain engine. You can change cam, headers, etc., and it will still run OK, but the more you do the less well it will work. It is not a "mass airflow" system like most of the newer systems. At some point they need a "chip" reprogram, and I don't know that those are available for CFI. And for a 1.4 liter engine, it may or may not run very well. The V8 and 6 cylinder Ford control boxes used very different programming.

You'd need all the sensors and the black box. There is a ton of relays related to it on the US fords as well.

There are some tricks you can do for the CFI ... you will need a hotter thermostat than usually run in a 1200 (180 F or higher), you can adjust the TPS and the fuel pressure adjustment would have a large global effect. The other problem is the distributor feed ... I doubt if the control box would work without that signal (it's Ford "TFI" in the early 80's models). I have a book on the CFI and have the fuel pressure gauge ... Hmmm ... now I'm thinking I should try it! I wouldn't expect great results, but you never know til you try it.