RE: Converting big glow to gas?
AV8TOR,
It is much worse yet...
Just think of it; a gas engine consumes only 40% as much fuel as a glow engine (on low nitro), yet only has 2% oil, to glow fuel's 18%.
This means a glow engine uses ~22 times more oil per-cycle than a gas engine.
There are several reasons for this and one is that when dissolved in gasoline, the oil gets everywhere more easily than when it is suspended in methanol.
So, much more oil is needed.
The needle bearings do affect lubrication requirements, but using the same per-cycle amount (5% in gas), will give the sliding con-rod bearings enough protection, since it is better distributed by the gas.
Even our venerable castor oil, needs to be in much smaller percentage, when it is mixed in gas.
As to cooling, you are right in that a gasoline engine does not have the benefit of methanol's evaporative cooling, but even this attribute must not be abused.
A methanol engine must be cooled as if it is running on gasoline... If in doubt, make sure there is no doubt!