Originally Posted by
taildragger1589
Don't that little 11 sound good?
I just wondered how much hotter the gas runs, than the nitro.
I've heard that the normal temps for gas is 210 - 220 F and the FG11 is running at 221 on a 93 degree day with high humidity. So I guess it's doing ok.
A few years back I was experimenting W/e-85. I did some testing W/an FA-150 on GI, CDI/glow fuel & CDI/e-85.
I'm just going from memory but if I recall correctly, CHT measured between the rocker boxes @ the rear was 20°F hotter W/CDI/glow fuel compared to GI & CDI/e-85 was an additional 40°F hotter than the CDI/glow fuel combo. I abandoned the e-85 idea because it us not readily available in my area & when it is, it is often only 60% ethanol in colder months. The glow fuel carburetor was also way too sensitive.
Since the blend I was using was most likely the lower % ethanol blend, the temperatures I observed would be close to what a straight gasoline conversion would run.