Build Your Own Fuel Injection Computer

renaissance-redneck writes "I was searching for details on assembling a fuelie setup from junkyard parts when I stumbled across this: 'MegaSquirt is an Experimental Electronic Fuel Injector Controller for Internal Combustion engines. Its main goal was to create a simple fuel-only controller that could be easily reproduced with cost-effective components.' If you've got the time and the skills, it beats spending $2000."

Comments

Re:Interesting...

[barzok]

As the government takes more control (with OBD-III) along with the carmakers, expect to see less "home-tuning" as time goes on. Even with recent OBD-II vehicles things are getting difficult. And it requires deep pockets, plus a lot of equipment.

Really, if you're into this sort of thing, you're probably better off restoring an older car, and dropping in a crate engine with a bolt-on fuel injection kit like Edelbrock offers, then tuning that.

Hackers.

[jericho4.0]

This is very cool. The success stories page has some interesting real life applications of the thing. Reading it is very like reading overclocking stories.

Some people are replacing stock computers in more modern cars for performance reasons, and some are putting them in older cars, and getting some impressive results. And, yes, you can hook up a laptop for on-the-fly tweaking. Now I want a car.

Limited usefullness

[Lewie]

This device would be good for converting a carbed vehicle to throttle body EFI. With only two injector drivers though, it's ultimate usefullness is pretty limited. They claim you can batch fire several injectors at once (non-sequential EFI), but that is hardly 21st century technology and has all the disadvatages of carbs and TBI like crappy emissions, fuel economy, and idle quality. If your mullet-mobile's Quadrajunk needs another rebuild, then this might work for you. If your tastes reach any higher, though, you'll need one of those "expensive" EFI computers.

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