
Originally Posted by
shoafster
Learn to tune first on gasoline before running E85. Also, you NEED a wideband before you go to E85 and really you need it for gasoline too. After you get a good tune on gasoline, you shouldn't have to change your tune very much when switching to E85. All you really need to do is change your Injector Flow Rate table to give around 30% more fuel and then do a minor MAF tune and you should be set.
I gained 27 whp switching from gas to E85 because I was allowed to run 6-7 more degrees of timing. Be careful though, make sure you aren't maxing out your injectors and scan your AFR to make sure you don't go lean.