I got hold of a 16t pinion and used it last night at a race meet down from the 18t i was running before and temps droped 10 to 15*c and still had heeps of low and top speed. I was very happy to see this and thanks for the advice.

I had a 15t from a differant buggy but im sure i tryed that when i first put the buggy together but the motor was hitting on the drivline before i could get it to mesh properly.

It was a slipery track but still managed to get 1st in the intermediate class and the buggy held together without any problems no big jumps to brake stuff here.