02-28-2005, 11:24 PM
TurboOmni08 Wrote:Just a question, could EGT rise outside of a safe temp while on the track even with a proven tune?
Yes, happens all the time - especially with the Evo crowd where the motor is pushing quite a bit of boost from the factory and there's lots of easy power to be had. It looks safe on an intertia dyno with a nice fat a/f ratio on a cool day. But, take it to the track, running it hard for 30 minutes at a time, in summertime heat, around other cars (blocked airflow) and you have a disaster waiting to happen. I would suggest tuning it on a loading dyno, and heat soak the motor and then see what kind of ignition knock and a/f ratio comes along... and then when you go to the track, add some 100+ octane fuel in your tank as well (or make your own w/ toluene) as a buffer.