Have several engines to put on my cars, one combination is NTC3 with Sirio TRP.
The only glitch that I've found is my Sirio is one of the first units and come with the crank threads a little longer than needed and forced me to use a countersunk screw to assemble the clutch bell to the crank.
Engine is very durable and easy to tune (responds very well to carb adjustments). I won't lie to you. Isn't as powerful as a modified engine, but performs very well, very reliable and quick.
Got an 3 hours endurance with my NTC3 and performed flawless (all two). Ended on third position.
[quote=MugenDrew;2684554]BATTERIES are for FLASH LIGHTS, gasoline is for cleanin parts, alcohol is for me to drink and well NITRO...everybody know thats for racing.[/quote] :D:D:D