Lazer ZX5 RTR - ESC/Motor Upgrade Question

[dibble34]

Hi All

I have the above and am very pleased with it. I have upgraded the shocks and a couple of other bits, but am starting to feel the need for speed . Would appreciate some advice, was thinking i would go down the brushed route, maybe second hand. Something like a LRP 7.1 and a 10 single motor, however i understand that brushed motors need quite a lot of looking after. So..... i was looking at the combo Brushless LOSI kits from DMS for £115 quid. However the turn ratings i think are different, so not sure which one to go for. Torn between the 4.5 and 6.5 turn. I am running NIMH 7.2v stick packs and can't afford to change for a while. really not sure which route would be quicker/cheaper/best for the RTR! So there you have my confused thoughts, so any advice gratefully received!

Cheers

Dave