Quote:
Originally Posted by diesel_john
E85 needs what about 12 to 1 compression to take full advantage. maybe flexfuel engines should be turbo'd so they can vary effective compression ratio.
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Wow, I didn't know that, that's very high. Even 93 Octane would not work well (if at all) at that CR. The highest CR I have ever heard of in a production car is 11/1. Perhaps a turbocharged engine with a boost controller that would increase boost when running E85 would be the solution.