Originally Posted by
Chris@SCAutos
Im new to this whole ethanol thing, but if i were to have a modified car, and a tuning system where i could switch back and forth between a 93 octane tune and an ethanol tune, would this be a good idea to gain some power?
YES!
As a general rule though, remember not to mix the fuels. Empty one to fill with the other. Keeps the car running properly.
Just switching fuel alone and no other changes usually nets 25whp minimum gain on turbo cars. 30+whp gain just from fuel switch alone is not uncommon at all.