Antique

My Feedback: (4)

Some rpm numbers on two Fuji 32 conversions..Weight 3 lbs 6 oz..
Fuel 100LL, Amsoil 100-1
Temp 72
Altitude 6800
No muffler on one, a Bennett on the other.
18-6W APC 8000
18-8 APC 7500
18-8 Mejzlik 7600
18-6 Mejzlik 8500
20-8 Zinger 6200
Fixed timing, no problem hand starting, idling about 1400...
The two engines were within 100 rpm on all props....

Geistware

My Feedback: (16)

Did you mix the Amsoil at 100:1 or 80:1?

Antique

My Feedback: (4)

100-1

737

fuji 32 a walbro carb wt 407 18/6 pk prop 7800

new fuji 32 b walbro wt 690 same prop 7100 runs teribule in mid range

think they have gone back-wards

737

Antique

My Feedback: (4)

My PK props routinely turn less rpm than the others, but may pull as well or better...The size of the carb should have no effect on rpm, as most are bigger than they need to be anyway...Except for the dinky carbs on some of the weedeaters...