Flashable ECM for a 91
Thread Starter
Burning Brakes
Joined: Nov 2008
Posts: 995
Likes: 1
From: Naples Campania
Flashable ECM for a 91
I have installed a decent amount of upgrades on the L98. A few of them are hardware. However, all of these upgrades are currently worthless because i have the stock ECM and the computer has readjusted everything in an attempt to "fix" it back to stock. I have looked into ordering a new set of PROMs programed for my upgrades, but I collecting more upgrades and it would end up being a waste of about $300 - $500 bucks through www.tpis.com. The best thing for me to do is to "flash" the ECM. Problem, the ECM is not flashable. I need a flashable ECM. I have found a kit from Edelbrock http://www.summitracing.com/parts/EDL-35100/. But it comes with a new wiring harness (cool, but unnecessary) and the ECM is not compatible with the stock wiring harness connector.
So, after all that reading, this is what I need. A flashable ECM that connects to my stock wiring harness.
91 L98
*btw, that kit looks awesome. includes fuel management, but don't need it right now*
So, after all that reading, this is what I need. A flashable ECM that connects to my stock wiring harness.
91 L98
*btw, that kit looks awesome. includes fuel management, but don't need it right now*
Melting Slicks
Joined: Jan 2008
Posts: 2,054
Likes: 120
From: AZ
I have installed a decent amount of upgrades on the L98. A few of them are hardware. However, all of these upgrades are currently worthless because i have the stock ECM and the computer has readjusted everything in an attempt to "fix" it back to stock. I have looked into ordering a new set of PROMs programed for my upgrades, but I collecting more upgrades and it would end up being a waste of about $300 - $500 bucks through www.tpis.com. The best thing for me to do is to "flash" the ECM. Problem, the ECM is not flashable. I need a flashable ECM. I have found a kit from Edelbrock http://www.summitracing.com/parts/EDL-35100/. But it comes with a new wiring harness (cool, but unnecessary) and the ECM is not compatible with the stock wiring harness connector.
So, after all that reading, this is what I need. A flashable ECM that connects to my stock wiring harness.
91 L98
So, after all that reading, this is what I need. A flashable ECM that connects to my stock wiring harness.
91 L98
This is an issue for and expert with these tables and I am not one.. Nor is a mail order chip going to deliver that most your engine can deliver. Finding a good shop that is experienced with proper tuning is damn tough, as I have found, and sadly, I cannot recommend one.
There was a shop near Miramar, whose owner had a BBC in an '87. It was Top Flight 858-547-8388 8510 Production San Diego, CA, and if he's still around, he may know where to get your hotrod PROMed.
Safety Car
Joined: Feb 2000
Posts: 4,564
Likes: 109
From: Austin Texas
Contact Formato @ http://www.fasterproms.net/contact.html
They did my tune...$350 and if I made any changes they would re-tune for nothing.
All I did was hook up my laptop and read the data at cold start, cold idle, warm idle, cruise, then a blast at WOT. Saved the files and emailed them with a detailed write-up of the things done to the engine. A week later I had a new prom in my mailbox. Changed it out and did the same readings all over again until we were happy with the tune. They got it spot-on in 3 tries (and the first shot wasn't too bad to be honest, just not "optimal").
It shows they only do LX series cars now, but I'll bet they still do ours as well.
They did my tune...$350 and if I made any changes they would re-tune for nothing.
All I did was hook up my laptop and read the data at cold start, cold idle, warm idle, cruise, then a blast at WOT. Saved the files and emailed them with a detailed write-up of the things done to the engine. A week later I had a new prom in my mailbox. Changed it out and did the same readings all over again until we were happy with the tune. They got it spot-on in 3 tries (and the first shot wasn't too bad to be honest, just not "optimal").
It shows they only do LX series cars now, but I'll bet they still do ours as well.
Safety Car
Joined: May 2007
Posts: 3,651
Likes: 10
From: Apple Valley MN
Team Owner
Joined: Jul 2004
Posts: 28,430
Likes: 3,279
From: Hartford WI
I have used Formato and Hightech Motorsport. http://www.hitechmotorsport.com/
Hightech does a dyno tune.
Hightech does a dyno tune.
Safety Car
Joined: Feb 2000
Posts: 4,564
Likes: 109
From: Austin Texas
I have used Formato and Hightech Motorsport. http://www.hitechmotorsport.com/
Hightech does a dyno tune.
Hightech does a dyno tune.
Formato will ALSO do a dyno tune...just need to get the car to Tampa to do it.
It isn't that big of a hardship...if you have the time to do it.
Plus...the Arturo Fuente factory store is in Tampa...and they have killer cigars for the right price
http://www.tampasweetheart.com/1.html
P.S. I was looking across the posts the other night and saw this one http://forums.corvetteforum.com/c4-t...n-l98-lt1.html
Last edited by 1991Z07; Jun 24, 2009 at 08:20 PM.
