Quote:
Originally Posted by bestclimb
If you are burning components under light loads you are not lean enough. If you watch EGT as you get leaner it will go up to peak (which is where you will start burning valves/pistons/other things) then as you go leaner (50*F at least) temps will drop off. The throttle will have to be opened more to get the same power but you won't have to be sucking air past a throttle plate, which is where a fair bit of efficiency can be gained.
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So what your saying is you have to jump to a very lean mode where power feels lower so temps run cooler , so like 17/1 >22+/1 . that might be hard to do for DIY .
These engines that run lean mode , I would guess also have better components (valves, seats ,etc) to handle higher temps .
Do you know about the EGT they run ?
more than 1400F ?