ECU Swap ?
Thread Starter
Pro
Joined: Jan 2009
Posts: 686
Likes: 4
From: Austin Texas
ECU Swap ?
Thinking to put an ECU from a 95, into a '93, so I can program it with a hypertech, instead of having to burn chips.
But, I recall reading somewhere a couple years ago that its not an easy thing to do and I remember concluding that I'm just better off selling the 93 instead of fussing with it, and get a 94 or later C4.
Is my memory correct, that its more trouble than its worth ? Or is an ECU swap a do-able thing for a person of intermediate skill ?
thanks,
Chris
But, I recall reading somewhere a couple years ago that its not an easy thing to do and I remember concluding that I'm just better off selling the 93 instead of fussing with it, and get a 94 or later C4.
Is my memory correct, that its more trouble than its worth ? Or is an ECU swap a do-able thing for a person of intermediate skill ?
thanks,
Chris
Safety Car
Joined: Jun 2006
Posts: 3,629
Likes: 28
From: FL
Quite a few differences, 93 is speed density, 94 and up is MAF and also sequential instead of batch fire injection. At the very least you would also need the newer engine wiring harness. I have no idea how the late PCM would interface with the CCM in the 93.
Thread Starter
Pro
Joined: Jan 2009
Posts: 686
Likes: 4
From: Austin Texas
Prob true, I wish it could just be plug and play but I seem to recall maybe needing a new wiring harness, but not sure I remember correctly. I haven't done anything to it, other than Mezeire, higher leverage ratio roller rockers, John's injectors, and opened up the incoming box. Got an awesome set of heads I made though, just too lazy to take apart a good-running engine for now but when the time comes I'll do the cam as well. Just that, after all that, I'll need to re-program and I don't wanna spend oodles of time learning how to burn chips or paying someone, cuz the time factor - cars worth about $10k maybe and even after all that, it'd still be worth the same. I know putting a $$ value on it isn't really accurate b/c I enjoy it more than any $$ amount, but it is a consideration anyhow.
Race Director
Joined: Jan 2002
Posts: 12,261
Likes: 85
From: O'Fallon Missouri
A hypertech programmer won't help tune a modified engine. Why don't you do some research on burning chips and doing your own tuning? Once you get into the tuning, it can be as fun as parts swapping, and not so back breaking.
Le Mans Master
Joined: Mar 2001
Posts: 7,999
Likes: 14
From: Life is just one big track event. Everything before and after is prep and warm-up and cool-down laps
Cruise-In III Veteran
Cruise-In IV Veteran
St. Jude Donor '12
IIRC a few folks have looked at it. You would have to rip out all the wiring and put in a 95 harness and get the CCM from a 95, and probably a BCM.
Best bet is something like the Moates stuff, or run a different computer for the fuel/ignition timing. I think I saw a post recently where someone was going to use XFI.
Best bet is something like the Moates stuff, or run a different computer for the fuel/ignition timing. I think I saw a post recently where someone was going to use XFI.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
2027 Corvette vs The World: Every C8 vs Its Closest Competitor
Joe Kucinski
10 Most Common Corvette Problems of the Last 20 Years!
Joe Kucinski
5 MOST and 5 LEAST Popular Corvette Model Years in History!
Joe Kucinski
2027 Corvette Buyer's Guide: Everything You Need to Know!
Joe Kucinski
Team Owner
Joined: Sep 2003
Posts: 20,172
Likes: 672
From: Freedom is never more than one generation away from extinction.
St. Jude '03 thru '24
