Muzz the SparrowHawk is much like the TC4 Associated so it will be a very good car for VTA, Noel I think uses 55T Spur with a 34-35 Pinnion on a 21.5 Brushless and he does very well as do a few others with simillar cars.. I would have to get Noel AKA Backdoor to make sure of the ratios...

All you need to do is make sure you run an Untimmed 21.5 Stock system and regulation bodies and tyres the rules and regs are all on the first couple of pages of this thread.. Would be good to see ya down with us ...

PS Silvercans work well too but not sure of the Ratios...