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Originally Posted by M-terkait
i think E85 helps keep you're engine cooler as it burns cooler than regular pump gas.
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Yea, sure does.
I'm not sure it's a significant decrease though. I ran 2 of 4 events with E85 and the other two with 108 octane and they were about the same.
Different days, too many variables to take into consideration.
I was surprised at how well it stayed under 250 considering pushing the car at about 8/10's running relatively higher boost pressure with stock timing curves.
My high level comment to the OP would be it seems a bit high , but maybe he's a much better driver than I am ;-).
I'd have to go check my program tables for my E9X 335 and see when the ECU starts pulling timing for IAT and Oil temp but if I recall its 128 and 256 consecutively. Maybe the same for N55 or maybe different.