Originally Posted by
rendcool
I am planning to race in the track ,,
but last time I heard someone suggested me to get the 3.5 one ..
but I don't even have the car yet ,,
and now I have xray,,, and I am planning to go to the track for race ...
what is the good one for me ?
cz I am still beginner ..
A 3.5 might be too powerful if your just starting out. It might look good going down the straight, but if you don't learn how control it, you'll end up spending a lot of $ on parts. Especially on an Xray

. Check to see if your local track offers stock classes for a 21.5 or 17.5 motor. I would recommend either of those. Good luck!