Hey Guys,
I posted this in another thread ,but will try my own. :-)
We have an O-290D-2B with about 500 SMOH in our 7GC Champion with a 74-58 prop. As you know to get the 140HP it needs to turn 2800RPM. No way that will happen around 2600-2650 is max in level flight. It is a little low in Max. RPM during static ck. But still falls in the requirements. The 74-58 is what it left the factory with and this prop was new at OH. Our O-320 in the Pacer will turn 2700 with the same prop no problem.
I'm curious to know what RPMs you get with what prop.
For that mater I would like to hear what some of the others with O-290s are getting with what prop