PeteP
Well Known Member
Knowing the 9 is hard to slow down with a fixed pitch prop I am wondering what idle speed is best used on my fixed pitch O320 9A? I have a rebuilt stock O320-E3D with dual mags / carb and it seems happy to idle all the way down to 500-600 RPM but I am concerend that might be too slow after it warms up on a longer run. I don't want to get it set too high and complicate the slowing process for landing.