I use to use the NovaRossi .21 P5 engines and moved to the newer .21 P5X engines. Honestly have to say i liked the longer life reliability of the P5 better then the new P5X. Anyway, I installed a newer NovaRossi .21 Plus 21-5 into my Truggy and have to say I am really impressed.
It seems the newer NovaRossi .21 Plus 21-5 motor has more low end and more top end. This engine starts up every single time and just purrs at idle and then screams when running. My usual temp is only around 210 too!! I installed this on my HPI Hellfire but I think I will also install one into my Mugen MBX-5 buggy since my P5X wore out recently.

Any other racers tried this NovaRossi .21 Plus 21-5 motor and have comments?