Quote:
Originally Posted by Ccmano
Given the sensitivity of our engines to timing and heat soak, I suspect there may be some gains to be made. I know that chip tuning done by Dominic has shown that optimum timing advance cannot be reached on pump gas. This is because the pre-ignition sensor picks up ping and instantly retards the timing, this gets worse as the engine gets hot. In theory, this system should allow maximum usable timing advance without fear of engine damage due to pre-ignition. Couple that with a cold, dense air charge and what "SAE literature refers to as `micro explosions' as the water/methanol mix flashes to vapor that helps break up the fuel droplets even further, giving a more homogeneous charge in the combustion chamber." We may have something worth investigating further here.
I'd like to hear further discussion on this.
H
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I suppose that is what it comes down to: Does the LT-5 significantly benefit from running more timing than is possible with pump gas. This would be a most interesting dyno/tuning experiment.