A carb heat trick

[westhawk]

I have a couple of doubts.

Since peak EGT typically occurs very near to the mixture for best power, a mixture leaner than that might result in a lower EGT and therefore less heat to the carb. I like the idea of leaning to peak EGT but I'd want avoid leaning too much. (though the difference may be small in terms of heat energy transfer to the carb heat air)

At any position less than fully open, wouldn't the pressure and temperature of the air passing the throttle valve be even colder? Possibly contributing to faster icing?

I think perhaps sticking with the recommended procedure of applying full heat as soon as carb icing is suspected would do the most to help the situation. Then of course the mixture may be leaned as required to achieve a smooth(er) running engine. I think the key point is timely application of carb heat before the ice gets too thick.

Anyway that's my initial thoughts...

Oh, a question! Where exactly is your carb air temp sensor installed? Before the throttle valve or after?

westhawk