Monster GT Conversion With A Center Diff

[DrKnow65]

nms, either one would be fast, the 1518 does well with both 6S and is pushing max limits on 8S, where the 1520 really shines on 8S and is very comfortable on 6S.

Bigger is better so I'd go with the 1520 if price is not an issue.
Not sure if you can still get $75 1518's on the Castle Creations "moving sale"?

[nms]

the 1520 is better? but only have 1600kv and the other have 1800kv.

that doesn't make difference in the speed? sorry my ignorant questions.

it's better use 2 pack's of lipo's 3S or just one 6S?

thanks