custom ecm tuning
Thread Starter
Instructor
Joined: Jan 2015
Posts: 101
Likes: 2
From: Rochester NY
custom ecm tuning
Iv tried the search on this and I cant find the answer im looking for. If I have a 77 corvette with a new 355 crate engine with a 1991 camaro ecm and map sensor. Im going to reprogram the computer so what data do I use? All the research iv seen starts with a factory setting and improves on that. Where do I start?
Team Owner
Joined: Jul 1999
Posts: 65,492
Likes: 230
From: Orange Park Florida
Save your time and just order what you want from Jim Formatto....hope the spelling is correct, he is in the Carolinas region as I recall, he did my last chip in my 355 roller engine speed density #1227730 computer....runs like a charm.....I advise to stick with the stock L98 cam too....can't trust any aftermarket cams, and especially that POS ZZ9 cam from TPIS in Minn.......
Le Mans Master
Joined: Jan 2001
Posts: 6,750
Likes: 1,391
you can try third gen dot org....
They have a section called diy prom.
I played around with that for a while. It was fun. Learned a lot. I would not do it again because there are so many good self learning systems.
I was using a 730 ECM, I suppose that's what you have.
Anyway, I replaced that system with a TPI retrofit FAST EZ-EFI 2.0 and it's fantastic. Just something to consider.
I played around with that for a while. It was fun. Learned a lot. I would not do it again because there are so many good self learning systems.
I was using a 730 ECM, I suppose that's what you have.
Anyway, I replaced that system with a TPI retrofit FAST EZ-EFI 2.0 and it's fantastic. Just something to consider.
Iv tried the search on this and I cant find the answer im looking for. If I have a 77 corvette with a new 355 crate engine with a 1991 camaro ecm and map sensor. Im going to reprogram the computer so what data do I use? All the research iv seen starts with a factory setting and improves on that. Where do I start?
Last edited by carriljc; Feb 9, 2017 at 01:35 PM.
Drifting
Joined: Jun 2012
Posts: 1,990
Likes: 183
From: Port St. Lucie Fl
Currently toying with the systems to do this on my 87 Chevy truck, if you have the patients and desire to learn head over to www.gearhead-efi.com lots of good info about tuning those old ecms. If you dont want to mess wioth it pay someone to burn you a chip or get a newer system.
Thread Starter
Instructor
Joined: Jan 2015
Posts: 101
Likes: 2
From: Rochester NY
Currently toying with the systems to do this on my 87 Chevy truck, if you have the patients and desire to learn head over to www.gearhead-efi.com lots of good info about tuning those old ecms. If you dont want to mess wioth it pay someone to burn you a chip or get a newer system.
Thread Starter
Instructor
Joined: Jan 2015
Posts: 101
Likes: 2
From: Rochester NY
Le Mans Master
Joined: Jan 2001
Posts: 6,750
Likes: 1,391
Yep, I did....
I had (have) an Autoprom, ZIF Socket, and I bought and burned chips from them. All good stuff.
Unless you really want to spend time and/or learn how to play with programming you may want to consider other options, otherwise you're going to spend a lot of time doing this.
I did it for about 8 years.... I'm not a pro, and I could only do it now and then, and it was fun - however, once I went to the self-learning EZ-EFI 2.0 I realized that it was a lot of effort and I was not as good as the new fast computers. It was a lot of fun to learn though. See below for autoprom and other stuff.
And here's the link for diy prom at third gen dot org. Lots of info there, I learned a lot there and made a lot of modifications per that forum.
http://www.thirdgen.org/forums/diy-prom/
AUTOPROM INFO:
http://www.moates.net/apu1-autoprom-....html?cPath=64
I used TUNERPRO RT as the software for making mods:
http://support.moates.net/tunerpro-rt/
Unless you really want to spend time and/or learn how to play with programming you may want to consider other options, otherwise you're going to spend a lot of time doing this.
I did it for about 8 years.... I'm not a pro, and I could only do it now and then, and it was fun - however, once I went to the self-learning EZ-EFI 2.0 I realized that it was a lot of effort and I was not as good as the new fast computers. It was a lot of fun to learn though. See below for autoprom and other stuff.
And here's the link for diy prom at third gen dot org. Lots of info there, I learned a lot there and made a lot of modifications per that forum.
http://www.thirdgen.org/forums/diy-prom/
AUTOPROM INFO:
http://www.moates.net/apu1-autoprom-....html?cPath=64
I used TUNERPRO RT as the software for making mods:
http://support.moates.net/tunerpro-rt/
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
5 Best & 5 Worst Corvette Daily Drivers
Joe Kucinski
The Headlights of Every Corvette Generation Explained
Joe Kucinski
5 Best & 5 Most Overrated Corvette Track Packages of All Time!
Joe Kucinski
Every 2027 Corvette Engine Explained
Joe Kucinski
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette
Verdad Gallardo
10 Ugly Corvettes That We Still Kinda Love
Joe Kucinski
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer