Hmmm...that dont sounds soo good :/... how about the GTB ESC then? can that one handle the HV?, or do i need a new ESC?

Maybe il get a MM system? a 4600?

i will use this truck for indoor racing, no rocket is needed...

maybe this one? the HV 4.5r with a controller? or do i only need the motor, can the GTB handle ?

http://cgi.ebay.com/Novak-HV-High-Vo...ayphotohosting

Vintage: Then you would prefer the MM 4600 over the 5700? ( I can't make up my mind of which one to buy for my crt .5 conversion.)

I wouldn't use either of those motors. I tried them both and the motor/ESC gets a little too warm for my taste. An 8L 0r 9L motor on 3s would be better IMO. Or even an S motor. The outside dimensions of the MM motors are very close to an S motor, but the S motors have more of the can filled with coil wire so they are stronger. So really, the MM motors are kinda like a sub-S size IMO.