No I'm not thinking of making gasoline at home , but due to improvements in my stock motor ,such as a tuned intake, and Dyna muffler etc. I've been thinking of trying 89 over 87 octane gas to see if performance or an increase in mileage might be obtained, at reasonable cost, and the best way to achieve it.
The fuel in my neck of the woods, is 87E10 , 89E10, and 91 straight gas. Most of the fuel sold is 87 and 91 , I don't really know anyone that uses 89 , It seems to be the "orphan" in the group and that scares me as this fuel must sit around a long time and has a much better chance of the alcohol picking up water, and the fact that it is an E10 gas and still has only 95% of the energy of straight gas due to the fact that alcohol has only half the energy when burned. It got me thinking there might be a better route to obtaining a better product.
IF the spread of cost is fairly even between the three fuels (haven't checked) by mixing 87 and 91 octane fuel ,half and half , (at the pump) there might be gains in the quality of fuel. Octane would remain the same 89 but the fuel would under go a change that of being 89E5 rather than 89E10 it would now contain 97.5% rather than 95% gas and only 2.5% alcohol. A2.5% increase in power and a 50% decrease in alcohol. DragBikeMike once commented that the DR650 piston ,billed at 10.5:1 may not produce that in the savage ,due to our larger squelch , and I begin to wonder if the fuel I describe above might not work ,gas having a higher combustion temperature than alcohol, it might work to ward off detonation.(but I have no way of testing.)
well anyway ,just another thought from the belfry of the bat