Though I've never actually measured, a carbureted naturally aspirated racing two stroke should burn something in the 0.7 Lb/Hp/hour range (crankshaft). So a good 49.9 FE/850 mod or SST60 engine delivering say, 105 HP will consume:
105 HP X .7 Lbs/HP/Hr = 73.5 Lbs/hr / 6.0 Lbs/Gal = 12.25 GPH, or about 1.225 Gal for a typical 6 minute heat (plus milling).
Are these numbers consistent with your experience?
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