RE: fuel injection
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RE: fuel injection



Anyone considering retrofitting fuel injection on their engines should look at the MegaSquirt project at <http://www.megasquirt.info>. It is a fully programmable EFI computer that you build from a kit. There are versions of the software that control spark as well. It has a large user base, including some AMC installations, and is well supported with tuning software. There is a web forum for Q&A, as well as success stories, at <http://www.msefi.com>.

Even if you wind up with a different EFI computer, there is a wealth of information on EFI concepts on the sites.

Disclaimer: There are many ways to build a MegaSquirt ECU, one of which is to buy a kit of parts from me, so if you choose that route, I profit from the deal. Many in the forum have reported that my kits make it easy to build the ECU and associated modules, but that I am kind of slow in shipping things out. All true.

--Glen

I don't believe this would work. I've been reading a fuel injection concepts
book and what you describe sounds somewhat close to the early 1930's
Mechanical fuel injection systems and they didn't work anything. There's too
many variables that the computer helps to control, and too many little
things that the carburetor system does through many magic little moving
parts to make everything work. Pick up a fuel injection book at the library
and start reading through everything. Un-mystify all of those "damn sensors"
and become familiar with what each one does and you'll find that
fuel-injection is really simpler than you would think... I still have alot
to learn before I start reprogramming them, but that is my goal so that I
can start intalling EFI's on my boat, wagoneer, etc. I have already
retrofitted a Chevy motor with a TBI setup, but on that one I could use the
factory PROM without any fuel curve mods so it was pretty easy...

Later,

Jeremy
http://www.jeepinrocks.com
or
http://www.iowa4wd.com


-----Original Message----- From: Ian Cudmore [mailto:yahootoo@xxxxxxxxxxx] Sent: Thursday, October 14, 2004 11:21 PM To: mail@xxxxxxxxxxxx Subject: fuel injection


ok guys i have an idea, and i'm not so sure how easy it would be to set up but... here goes, gotta be easier than dealying with all the computer crap baisicaly what i want to do is take the intake manifold off of a 4.0 and set it up without a computer as i understand it with fuel injection you have baisicaly a pressureised loop coming from and to the fuel tank, along with this is another line that comes up to the injectors, in between the two is a reastatcontrolled by the computer and as the throttle is increased <among all sorts of other variables.. .but this is the important one> the reastat closes a valve off and forces the fuel to move on to the injectors, wich are open. now, if one was to remove the computer, and reastat, and replace them with a manualy controlled one, that you could hook up to say... a throttle cable it could do the same job, only without having to mess with all those damn sensors and wires and crap, and most importantly at a much lower cost.

what do you guys think is this totaly out to lunch or with some refinement,
great fun?

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--
Glen Hoag
hoag@xxxxxx                             '75 Pacer 258 (x3)
Limestone County, Alabama               '76 Pacer 258 (for parts)
                                        '81 Concord DL 258

AMO #7895 AMCPC #471 '82 Spirit 151




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