Quote:
Originally Posted by parish8
Nice. Seems like a lot of timing. I am only running 18deg on e85 at 11psi. How much boost are you seeing? I may be playing it a little too safe.
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The water slows combustion, so you normally run a couple more degrees with it than without, but it does amazing things for preventing knock and keeping IATs and EGTs in line.
You probably have more in yours if you are only at 18, but watch for the point of diminishing returns with that E - don't add more timing than you absolutely need (even without knock). Ethanol has a really bad tendency to step right from controlled combustion to pre-ignition without ever going through knock (like gas does). I don't think I need to say that bad things happen quickly when that occurs.