Ed,


Calculating from the specific energy and the stoichiometric ratio of gasoline vs. methanol, the glow variant of an identical engine, will make 20% more power than the gas variant of the same.

There are only few engines that offer glow and gas variants and MVVS 26 and 35 cc are among them.


This power difference is partially counteracted by the fact that the gas version will need to carry 60% less fuel for the same flight duration. The RPM difference on the same prop will be that the glow version will spin it 7.7% faster than the gas version.