Originally Posted by
jhock
What kind of gearing/rollout you guys using on your 12th scales? I have been messing with this for awhile now and i feel i dont have the speed. I am using the RS with redline 10.5 in a 12R5. Let me know. I have a 81 tooth spur.
Originally Posted by
kn7671
You need to be around a 65mm rollout +/- with a 10.5 depending on the size of track and layout.
Knowing the spur size does not help us help you calculate the proper pinion to reach the rollout w/o knowing the tire diameter too.
Another factor is that if your using the 189 software from what I've read many guys are reporting that thay had to drop several pinion teeth after going to that version of software. And your lack of speed could be related to the boost and timing that your running your esc at. It could be that your gearing is good and you just need to tweak the esc settings some.