Originally Posted by
Jamie James
Hi guys.
Are the RB motors a hotter running motor?
I was racing mine on the weekend and it would come off the track at 230* even with a rich tune.
One note, it is still pretty new. Maybe 25ish tanks on it now. Its not very fast ( its not a total turd either) and doesn't have much low end.
Is that because its still new?
I was told it will wake up around the 1 1/2 - 2 gallon mark.
Thanks
That isn't hot for an RB engine, it's really rich, they will run normally 250-270 range, depending on track size, elevation, and outside temps, 265 is quite normal, what carb restrictor is in the engine? For breakin, 8.0 (Red) is best, when it's broken in all the way, then drop down to 7.5 (orange).