Quote:
Originally Posted by Skyehigh55
I’m just curious if going straight E85 with the OFT 4.03 tune would be worth the cost and time. Living 10-15 mins away from Jay’s Garage is nice and I don’t drive much outside of the metro area. I drive about 80-140 miles weekly and fill up weekly at about half a tank since my car is my daily. Albeit it does suffer not being flex fuel and unable to run a mix to have the ECU adapt on the go in cases where I need to be able to drive long distances.
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It's a pretty decent power gain, nearly 10%, and scales with any other mods. Jay's fuel always comes in around E70 which is about 100 octane. This allows the ethanol maps to run much more timing. The only PITA, is if you had to fill with regular fuel, you would need to run the car mostly empty, then flash to a petrol map. Sampe with going the other way, run it mostly out of gas, then fill and flash to the E85 map.