Quote:
Originally Posted by jasper
I'll have the kit in Michigan with 93 octane. Some gas stations there sell 91 and 93 octane. do you think it would be a noticeable difference between the two. E85 is plentiful in Michigan so I plan on running that eventually but I will probably leave it on pump gas for a bit just wondering if I should put 93 in it or go with the kit recommended 91.
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93 just adds extra insurance. The tune will run just fine on 93. If anything you will get more consistent power even after many many pulls when things are heat soaked. For example, when people here in CA run their cars on the track, many put in a few gallons of 100 octane. Not for power, but for consistency and for insurance.