Originally Posted by
Gearhead racer
Well a buddy of mine has a Powerhouse modded .28 Siro (i believe or it was a Novarrossi? cant remember
) which is giving him 8-9minutes of run time. So hes has the extra power for the truggy, plus gets just as good run time as the .21s . My brother gets about 8 minutes of run time with his force .28. Also both engines you suggested are well over $200!
when do top of the line .21's get 8-9 min a tank ? More like 10-13 pending the mill/mod/tuner.
.28's are too horny on bottom Period...you have to gear them out of the efficiency range to get any real usable power and by then you may as well run a .21 at its full potential.