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The speed at which gasoline will burn in the combustion chamber is effected by which type of gasoline it is (ie- leaded or non) but also the octane rating itself. An octance rating IS the speed at which the gasoline will burn. Hence running 87 octance will cause knock. This is due to the flammability or psuedo-flashpoint of the gas. The 87 will have the fastest burn in the chamber, and the speed at which the gas burns will decrease as we move up the ladder. The top unleaded fuel being 110.
Then the lead comes into the equation. I would agree with most of the points made above. The lead gas will burn the slowest out of all the gases due to its nature. Hence some the best tuning will come from the use of c16 leaded race fuel.
Joe
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The extra strength felt weak...
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