Quote:
Originally Posted by Tcoat
That brings up something I have wondered about. When you do load up a tune does the ECU still adjust the engine for different fuels? The stock tune will pull timing and such if it detects knock but does a custom one do the same?
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I don't know the other tunes. But, yes, JR tune detects and adjusts for knock. Those adjustment can be seen in the data logs. But, I think, the knock tolerances are more sensitive and can be done in a smaller range when the engine is boosted.
Stewart's sells non-ethanol in upstate NY. I can definitely see that their 91 octane non-ethanol is better than all other 93 ethanol gas I tried.