Quote:
Originally Posted by subatoy
ok I'm totally ignorant about E85, I know it makes more power but my questions is, can I just put E85 on my car without any mods or do I have to do something to the car? I have a 2011 GTI.
It's a little hard to find it where I live but I wouldn't mind giving it a try.
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I takes ~30% more E85 to just break even vs gasoline because ethanol has less energy. The BRZ/FRS has two fuel injection systems, direct and port. Between the two of them we can flow enough E85 to benefit from being able to advance the ignition. At the very least we need tuning to get a benefit. You will need tuning, and depending on your fuel injection system limitations you may need larger injectors and even a higher capacity fuel pump. You'rereally going to want to ask that question on a VW specific website like vwvortex. They'd be way more familiar with your platform than we would be.