Rkn1990

Newbie here, very first post. I've done extensive research on this forum without an answer for what I'm trying to accomplish. I have to say, I've used this site over the years as a guest and have gotten tons of great info and am appreciative of the help.
Anyways, my car started life as a 90 bandit II formula, tbi305/700r4/2.73s.
Then it was a 355/t5/3.70 9 bolt setup with a 750 and a 4309 return regulator.
Now, I got a great deal on a procharger, built my dish piston blower motor, got a good deal on a stealth ram, FMU, walbro, and I'm ready to piece it all together.
I have an 85 tpi IROC for a parts car, it's entirely complete and runs/drives, I'm in New England and it's rotted beyond repair. I know grabbing a 90 parts car would have been ideal but the 85 was free, literally....I planned on taking the engine management harness out of it, ECM, and engine/sensor harness out and tossing it all in my car.
Now I've been reading that 85s had a MAF burnoff module and I have no clue what that entails and if it's going to cause my any problems? I do have an 88 MAF ECM that came with my stealth ram setup with a chip burned to supposedly support the 30# injectors it came with. I'm wondering if the 88 ECM can be made to work with the 85 harness, and I'm also wondering if my gauge cluster is going to throw a fit or if the engine harness from the 85 will support all my sending units? I'm sure I'll have to use the 85 sending units/sensors out of the parts car.
I had ripped everything out for the carb'd setup years ago and have been running analog gauges, but I'm determined to get my original cluster back in the car and have it work. Lastly, I have my msd distributor from the TBI setup and I'm trying to pin point any and all wiring changes between 85-90 as far as the distributor plugs go. Thanks in advance for any help

ploegi

Wonder if you wouldn't be further ahead using all the stuff off the 88.... (ecm, harness, sensors for the pcm, etc.) As I recall, the 85 was kinda of the red-headed-stepchild of TPI...... Of course, that would more than likely mean getting a new chip burned for the larger injectors, and, of course, the blower.......

Rkn1990

Hey thanks for the reply. I know 88 would be the way to go, if I have to buy an 88 parts car or an 88 harness that's an option, but I have the 85 already and the price was right (free haha). I didn't plan on doing anything fancy with the tune/chip yet, just pulling some timing from it and running the FMU to get the car up and running. Eventually planned on doing the EBL flash further down the line.
I know I could take everything from the 85 and make my car run, but my main concern is really the dash wiring and getting my cluster to work. I know the 85 is a mechanical speedo so I'll have to figure something out there.

MaxpowerTA

The 85 computer is crap and hard to datalog / tune which you are definitely gonna need to do with that setup or you will be wasting your time. Do you have the ability to tune and burn your own proms? you need to at minimum use the 7165 88 ecm. the 85 harness can be re-pinned to work with it and the information on how to do it is on here somewhere. The only gauge cluster stuff that is fed from the ECM is the speedo the rest is just sending units, you can adapt your 90 vss signal to the 7165 ECU but some research will be required to figure out what program changes and or buffer box settings will be required. You really will need to do a custom program to make that stealth ram pro-charger combo run, there is no way the stock 85 ECU is gonna run that thing.

rusty vango

bruce hawkins can help you with that . call him @ 864-855-2694 . tell him what youre trying to do . he has parts and most everything you will need

rusty vango

if you can catch him on here "tuned performance" is a god send as far as TPI stuff goes

Rkn1990

Exactly what I was looking for, I'm an electrical engineer by day....or at least I have a $50,000 piece of paper that says so. So I should be able to handle re-pinning the harness after a search for the schematics which shouldn't be hard to find here. Would you happen to know what the MAF burnoff module junk entails? Pretty sure if I re-pin the harness, run the 7165 I can just use the 88 MAF? Thanks again