Quote:
Originally Posted by JamesM3M5
I believe Brian in MN has been working on that for a while. From Brian's and Shiv's research, about 50% ethanol is where you get some really high power/torque numbers, but I think Shiv also said stock turbos won't see much if any benefit over 60%. The original FF thread logs and dyno runs were done with a 50/50 E85/93pump (E10) that measured 60% ethanol via the fuel comp sensor.
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50% ethanol does make some good power. But 80-90% E85 supports more power for sure. Even with stock turbos. The only caveat is that you LPFP be in good shape and the pre-pump filter be relatively clean.