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Flex fuel tune
Posted: Fri Jan 23, 2026 9:25 pm
by 05 s2k turbo
So when tuning flex fuel do u adjust fuel map when you put e85 in or just adjust the settings in the flex fuel parameters?
Re: Flex fuel tune
Posted: Mon Jan 26, 2026 9:55 am
by Spunkster
If you have been tuned properly for regular fuel, then you should only have to make adjustments to the flex fuel settings.
Re: Flex fuel tune
Posted: Tue Jan 27, 2026 2:01 am
by 05 s2k turbo
For example im tune 93 on 15psi so it's got a proper tune but I want to turn it up to 20psi do I need to adjust the fuel map?
Re: Flex fuel tune
Posted: Tue Jan 27, 2026 9:55 am
by Spunkster
You should have your tuner make sure it is safe at the higher boost level.