i had great luck with a hv4.5 and the mmm , in a e-revo , i geared it to novaks rec. and the temps where fine.

check youtube for a vid of mine on the track , it ran great


it will work good for now , go for it , and later get a medusa , the 6.5 will get good run times as well


http://www.rc-monster.com/forum/showthread.php?t=15511

http://www.rc-monster.com/forum/showthread.php?t=15064