Cole,
I dont have a answer for you bud... on the "Rally" motors...
But.... most of the guys that i know found that the buggy based motors are the best.... in short... they seem easy to tune... and they are designed to pull the weight of the big GT8 cars.... Again, I am not a motor expert... I use a .21 NovaRossi 3 port... and do ok with it.. I will admit, I am down on power... but it runs good and easy to tune.... also easy to drive and be consistant with... I find myself in the mix at every local race if my setup is good.
$179.00....