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Originally Posted by pk2
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Patience must be running dry but, my options now that I know of for 93 oct (what the cblower was set up for) are
100 oct race fuel ------------------------------------------------$5-6 per gal
114 oct. toulene (already about 15% in pump fuel)------$20/gallon
115 (?) ethanol---------------------------------------------------$10/gallon
Bang for buck aside, I wonder what is easiest on the motor. And, what exactly is susceptible to deterioration with ethanol.
Regards, PK
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E100 is about 113 octane. If your goal is to hit 93 octane, using 22/78 race/pump gas your cost is at about 3.70/gal if you assume pump 91 is 3.00/gal.
9/91 toulene/pump is 4.50/gal
9/91 E100/pump is about 3.63/gal
This is just to get you to a safe octane rating. As we noted before, race gas will have more energy content than E100, so you'll make more power (and wear) on the race gas.