switched to this motor a few races back,i was already leading our Local points .....but,when i started running these motors.....they all started scratching there heads....LOL!
Easy to keep in tune,ton of horse power.......a little grunt
on the bottom end...Good Miliage.. 5:45 per tank,on 20%...better with 16%..with the proper gearing (per track)...we run 3 different lots........just as fast as the rest!......
IMO.....
I am biased though!!
I Love My SIRIO'S