1. Original 2.9L EFI (speed density)
2. Switched it to 2.9L Mass Air computer & turbo
3. Swapped in 5.0L & '88 F150 Speed density computer
4. Swapped in 545 using a Megasquirt and an EEC-IV adapter board.
1. Original 2.9L EFI (speed density)
2. Switched it to 2.9L Mass Air computer & turbo
3. Swapped in 5.0L & '88 F150 Speed density computer
4. Swapped in 545 using a Megasquirt and an EEC-IV adapter board.
My 1966 Dodge Dart. EFI drove better before tuning than it did with a (badly butchered) Holley but there were a lot of issues with my homemade turbo setup. Now busy replacing that with a less ghetto turbo setup.
EFI computer swaps on an already injected car:
Two separate swaps on a 2.3 liter Mustang to test out various bits of hardware. Drove pretty well but was not fully tuned.
One 1.9 liter Ford Escort being set up as a rally beater. Ran pretty well.
One nitrous-fed Yugo for the Grassroots Motorsports $2007 Challenge. Ran into some unexpected issues, some involving the EFI and some not.
1. Original 2.9L EFI (speed density)
2. Switched it to 2.9L Mass Air computer & turbo
3. Swapped in 5.0L & '88 F150 Speed density computer
4. Swapped in 545 using a Megasquirt and an EEC-IV adapter board.
nice
so what does it run with the 545 and MS in it?
It hasn't moved. There was a foreign object in cyl #4 and it cracked a cylinder wall. But while it did run, it was freakin' scary.
Truck 302 into a 56 ford truck for a guy, all stock, took the stock harness apart and made it work. Owner liked it, great mileage, didn't look as nice under the hood as the early 302 he had in it before, though.
86 vette engine into a 69 vette, to replace the wrong 350 that was in the car, lots of harness building and not much money (did this with/for a friend), used a junkyard V6 harness and the remains of the vette harness that had been cut off way too short. converted to a later model 7727 (?) computer and bought the 16151348 prom from GM, it worked ok. Had to build a 30 Hz (?) oscillator to defeat the VAT. Owner really liked it. Too bad he died a couple years ago.
Mostly stock harness, ECM, and engine/trans conversion stuff. Used complete harness sets with all the inputs, fooling whatever was necessary to make the ECM work correctly (like Pass-key), and some A/C and P/S inputs (for correct a/c idle).
Messed with an MS that was already installed last yr. Seemed easy enough to "play" around and get good driveability. Setting the start-ups was the worse thing.
Thats why I got involved. The owner couldn't get the initial settings (#'s) close enough to run. I just used some "normal" injector duration and timing #'s and guessed at some things, till it ran.
Once that was overcome. It was easy. I still don't know what some functions are/were....but it ran great, and the A/F ratios were much better than a carb will EVER be.
BUT, I haven't installed one completely (going to in late July), or set-up the initial stuff on an MS yet.........
The wiring seems simple enough. It the "computer" stuff that may cause me problems..............We'll see.........
Mostly stock harness, ECM, and engine/trans conversion stuff. Used complete harness sets with all the inputs, fooling whatever was necessary to make the ECM work correctly (like Pass-key), and some A/C and P/S inputs (for correct a/c idle).
Messed with an MS that was already installed last yr. Seemed easy enough to "play" around and get good driveability. Setting the start-ups was the worse thing.
Thats why I got involved. The owner couldn't get the initial settings (#'s) close enough to run. I just used some "normal" injector duration and timing #'s and guessed at some things, till it ran.
Once that was overcome. It was easy. I still don't know what some functions are/were....but it ran great, and the A/F ratios were much better than a carb will EVER be.
BUT, I haven't installed one completely (going to in late July), or set-up the initial stuff on an MS yet.........
The wiring seems simple enough. It the "computer" stuff that may cause me problems..............We'll see.........
if you need any help feel free to ask, i know scott and matt will chime in as much as possible
Just did a 5.0 Mustang harness and computer into an 89 F150. I don't think I will ever try that again. Biggest pain in the butt tryin' to get the car harness integrated into the truck. Truck used a harness that was integrated into the whole front end of the truck. The car harness was more of a separate harness setup. Cool if you have lots of time, wiring diagrams, and no cash. If you got the cash, a prebuilt harness is the way to go.
put a tbi chevy 4.3 in a toyota truck stock harness and electronics harness came out of a g 20 van cause i had it like 8 feet from back of motor to ecm plug ecm in chevy van is under drivers seat ugg. shortining it was a pain should a used a truck harness!
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