thanks again guys, i have a set of corally connecors on its way to replace the tamiya ones so that will eliminate that.
i am running a 19 turn pinion and a 80 tooth spur (not sure on everall ratio though).
my ECU is here
http://www.fusionhobbies.com/Mtronik...per_sprint.htm
it 'should' be ok i guess but i have just noticed it is suitable for up to 4500mah cells and i have 4600's would this overload it and make it cut out?
i haven't got a comm lathe to skim the comm but it looks in good nick.
cheers all,
bryn