Originally Posted by
AE SC10 4X4
I have a tekin pro 4 4000kv coming but wonder if I should of gotten the 4600. I race indoors on a medium sized track that is very technical with 1 straight thats a 100ft.
I would use the 4000Kv in those conditions. I ran the Pro4 4000Kv motor for quite some time and on medium to small tracks, excellent motor. It has more initial torque than the current crop of 550s so for tight stuff, it could be a real benefit.
If you find you need more top end but heat could be an issue, try A LITTLE timing, like 5 degrees and drop your pinion size 1 tooth. It can make a big difference.
As for when to use what,personally, I would say if you find you need more initial punch, your best bet may be the 540 Pro4 motors.