Don't put an 1/8th scale motor in a 1/10 mt. A 4-pole 540 or 550 is plenty. A Castle 1/8th scale motor will rip your driveline to shreds. Not to mention you would need another 2 lipo cells. Your rig would then be VERY heavy, and all damage would be amplified by the additional weight. If it were me, I would get a higher KV 4-pole meant for 4wd SCT and gear it appropriately.