I would also like to see some light shed on this thread by asking the same questions. It would be interesting to see the file that was supposedly tuned by me. I keep every file saved--- I can compare it to what I exactly programmed IF I had ever programmed this car at all or if changes were made after it left. From my end, I have not heard of anyone having their EVO blow up that I have programmed with Open ECU or with any other flash program. I also have logs to coordinate with each dyno run to reflect upon.
I agree that if what is being read in the tables is an A/F of 13.5:1, then you do not understand what it means. If it is being stated that the actual read with a real wideband is 13.5:1, then that is a completely different story. One item of concern, is that we utilize our Dynojet wideband to read the A/F and is also recorded with every dyno run. The target is simple 11.7:1 to 12.0:1 on OUR dyno which is safe and stable as well as looking at knock and overall timing. To have a car leave with that A/F would only mean one thing--- something was wrong with the car and you were going to take care of yourself then come back at a later date to have it finished, and never did and ran it *as is*. Also, I have run a side by side A/F comparison with my Autronic Model B to check the accuracy against each other--- and for all intents and purposes they read the same.
Lets clear this up by seeing the hex file to start (even if you don't have the one I supposedly programmed or don't want to post it or any others for whatever reason, at least post your immobilizer code). If you want to e-mail it to me privately, send it to
seang1@extrememotorsports.com and I will look at it from there. For privacy, your identity will not be revealed as that is our policy. Our concern for any car that has problems is to determine what went wrong, but without ever knowing--- there is nothing we can do.
Extreme Motorsports has been in the community for over 14-years and tuning is what we do and I know we know how to do it. Also for everyone's information, any vehicle that is flashed at our facility (regardless of manufacturer) is done by me. This is a forum of information, so lets see what information we have.....
Also, one interesting note: our '05 MR with just a click over 5000 miles on it had the OEM fuel pump fail after a year of running and driving the car. Another one of our customers car's also had its OEM pump fail at 70,000mi--- both would run and drive 100%, but under boost it could not deliver the pressure. Back to back dyno runs with a switch to a Walbro cured this. The problem is that when they failed, the cars wanted no part of going into boost as they would kick, buck, and complain--- this was good as it kept the cars from getting into boost and having further problems.
Posted: Tue Nov 06, 2007 9:08 pm
) and have gone lean as 13.5 several times. No knock occured and I wasn't concerned because I know the car isn't timed beyond optimal, the bell curve CHT vs AFR will peak at about 14.5, and also that 13.5 wont burn any hotter than 12.5 because less power is generated.
and, 10.2 AFR can just as easily do the same. My main point is that more info regarding the tune (by EM) that allegedly blew the engine would be needed to make such a posted claim ethically, such as: