Originally Posted by idrift4wd
Defiantly not. This car ecu is defiantly advanced enough to yield more power with higher octane. Octane plays a huge role in power making. Our cars are smart enough to give more boost at high altitudes arent they? (doesnt jb+ make it think its at a higher elevation?) not a significant gain but you'll notice a difference between 100 octane and 93(91). It wont make it slower and will make more power. your car can make more power depending on the brand of super you put in it also.
THE ECU WILL NOT ADVANCE TIMING TO TAKE ADVANTAGE OF HIGHER OCTANE. Timing advance will follow the ignition tables unless it makes corrections or it triggers a setpoint for a correction factor table(namely CATs.) That means that if you're having timing corrections and you mix in 100 octane then it will just clear up the corrections.