DJ19885.0

Ok so here is what a stock fox mustang eec-iv looks like on the inside. I bought this one off ebay for $25 shipped. You need the connector and case for the adapter board. Un-soldering that 60 pin connector is a nightmare though...




Here are a few shots of the Megasquirt complete and being tested with the stimulator board (worked the first time without burning anything up thank God!):








Here is a pew pics of the complete adapter board and relay cable that I made up. The relay cable was a huge pain to solder, believe it or not, it was more of a pain than soldering both boards, lol. The adapter board looks sort of blank because it has several spaces to put "mods" to control relays that can power pans, shift lights, nitrous, whatever you want. All I have on it is the correct jumpers, an idle control mod (required to use stock idle control), and one relay for an extra mod (just in case).







And FINALLY, here is a pic of it COMPLETE in the 'stang! YES!!!!! The adapter board is neatly tucked away in the kick panel to the right where the old computer used to be:

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DJ19885.0

As for tuning goes, after I got all the configurations set based on the car, engine, sensors, and what not, it was time to turn the key. It burped the first time which was a good sign that fuel and ignition were working and nothing fried, lol. The car wouldn't start with less than 20 percent throttle and I had to be on the throttle to keep it running at first, but I was very pleased that I had the car running just minutes after setting up the programming. First, I messed with the VE table by giving it more fuel. Then I figured out that the Idle control curve was WAY off, so I fixed that. After 20 minuted of tinkering, I had it idling on its own. I then set the trigger offset with a timing light so the computer knew exactly where it was at. It was far from a good Idle tune, but I was making progress. After more tinkering, I took it around the neighborhood with a friend and started data loging the drive. I got the idle a little better, and then called it a night. The next day I did more reading and messed with cranking pulse width and afterstart enrichment. It still didnt like starting cold at all, but it was getting better. Then I reviewed the datalogs and did more reading (your going to have to do a LOT of reading if you do this haha). I set the number of injections per cycle from 2 to 4 and WOW, did it run a hell of a lot smoother! After more tweaking, I had it idling just like it did stock! I messed with afterstart enrich and cranking pulse width again and did another cold start today, and it fired right up!! I am VERY happy with how this is going so far! If there wasnt snow on the ground I'd be out on the road tuning this thing, cant wait! This is by far the best investment in the engine I have done so far, mostly because it is forcing me to learn exactly the engine is controlled. I am learning a hell of a lot, and now I have one hell of a flexible computer that allows me to do a wide variety of mods to the engine for cheap! I'll keep you updated as my progress continues! Cant wait to see what happens when I can drive this thing!

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junkyard_dog_gt

i think you will be happy with what it can do, it is kinda based around GM stuff but it works great, i would run mega squirt if i had the cash.the sky is the limit here.

david01130

Damn that's awesome. That beats having to get a retune after every performance mod. I'm surprised I haven't seen more of these

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junkyard_dog_gt

well like i said its kinda gm based, like hondata and chrome are for hondas megasquirt is more tailored to gm cars.so alot of ford people stay away from it. and not too many people run it on non boosted motors.

DJ19885.0

Personally, I don't think its even worth mentioning that its "GM based". All that is gm based is the sensor calibrations and Idle control (at least for thr 5.0) . All you have to do for a ford 5.0 is calibrate the sensors and make an idle control circuit. It's hardly any work at all. Basically speaking, engines are engines and they are all run very similar... No offense or anything. And yes, i am planning on running boost as soon as cash flow permits!

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junkyard_dog_gt

you will be well ahead of the game then, by then you will know how to really use megasquirt and it will be cake to get boost figured out. are you going turbo? header flip? or sc?

DJ19885.0

Just a quick update on my progress (mostly cause im now on work-term and BS ing during lunch...)
I got the gas tune almost perfect, then installed a junkyard explorer intake, electric junkyard taurus fan, 70mm TB, 42 lb injectors and 225lph fuel pump. This of course took some adjustment to the tune, but after 20 mins, I was all set. Then, for the hell of it, I filled it up with e-85 and gave it a few more degrees of timing and messed with tuning with e-85 for a while. Once I got that tune down, I probably gained about 20 hp, but loss some mpg's due to having to run more fuel to compensate for the ethanol. (It actually works out cheaper per mile to run e-85 than 87 gas and its 105 octane, so its a win-win situation! Mostly due to the fact that the gas station around here sells it for 2.19 a gallon!) I edned up also purchasing a wideband o2 sensor, so I get accurate feedback to tune from, resulting in slightly better mpgs and a couple more hp =). I plan on installing gt40-p heads, a comp cams Xtreme Energy stage1 cam, new rings, seals, and what not in the next few weeks. I'll keep ya updated during lunch at work hah.

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06saleen

damn sounds like that will keep you busy. We need pics too!