It's been made open, so there is no arguments and also to allow Mardave cars and the Hpi Switch (now discontinued).
all motors can be seen being raced to various results, im currently using a 6.5t but turned down a hell of a lot, cos its the only motor ive got available.
yh it means it can be unfair at times but it also means it can be cheaper cos you use what ever you have got that fits.
if you buy a second hand one and it comes with non std bits it means its allowed...

__________________

Website:
http://www.wbmcc.co.uk/bingham-model-raceway.html
Schumacher Cat Xls, Rc10 Team(retired), Mardave Cobra, SST 98 Rally Car, TT02 Rally car, Wpl-c24 and Element Enduro builders kit #71 #deaddogracing
Autocare, unit 5 candleby Court, Cotgrave NG123RT.