i've only conversion built and driven the 8-T roller but i have no complaints so far...

track only use and mainly in open practice sessions and in 5-7 min. qualifiers...

i had to tone it down from it's origional 1515 1Y/F [4s-2p] 14 tooth pinion set up...

it was just too hot a set-up for our local [medium size, tight lay-out] track...

went with a 1515 1.5Y/F and NeuEnergy [5s] set-up lowering the peak rpm's by aprox. 5000 and amp draw by 30-40 amps making it easier control and giving us longer run times...

Ron