THIS IS ONE SICK ENGINE\!! It is a little on the high side of prices but you get what you pay for.. I might be on the loco side of engine buying.... I usually buy different engines...From my ROSSI BLACK MAGIC .21 buggy engine, and putting a 26cc gas eve into this 100x (doesn't always work out the way I want it) but I try different things.. I guess this is way when I build so called arf's they take me twice as long to complete than if someone else is doing it...
Anyone used these engines\?? let me know.

After a short run-in (with a 16 x 12 APC 18% oil, 8% nitro), the engine becomes instantly powerful and very reliable. The low-speed is perfectly carbureted and very few carburetor adjustments will be necessary when using different propellers. The low to high speed transitions will be quick and reliable. Below is a short summary of the results obtained with different propeller combinations on the 3M 140 and the 170


Fuel 14% MOTUL micro, 15% nitromethane, central glow plug OS A5, rear glow plug OS F 4-stroke


3m mintor 1.40 engine
Weight: 27.5 oz. (780 gr.)
Power: 3.7 hp
Integrated fuel pump in backplate
Twin glow plugs.

APC 16x12 - 8,350 rpm
APC 16.5x12 - 8,300
APC 16x14 - 7,900 rpm
APC 17x12 - 7,850 rpm


3m mintor 1.70 engine
The most powerful engine available in the F3A marketplace.
Weight: 29.3 oz. (830 gr.)
Power: 4.1 hp
Integrated fuel pump in backplate
Twin glow plugs.

APC 16x14 - 8,150 rpm
APC 15.5x12 4-blade - 7,900
Mejzlik 18x10 - 8,250 rpm
Mejzlik 18x12 - 7,600 rpm

I too looked into a 1.60fx, but here is 2-powerful engines that are a work of art and run as good as they look. They run great out of the box and are pumped Made in ITALY