Originally Posted by
jbrow1
Thanks for the information. My rollout right now is 4.2 using a 17.5 motor and one cell battery. That leads me to another question, do most state the rollout in metric or standard? I've had people talk to me about it in both.
43mm tires, 60T pinion, 76T spur. Trackstar 17.5 two timing marks towards +, with a trackstar genII one cell esc, not in blinky mode. She's a good runner and I plan on trying to fit a 61T pinion this week.
I was just wondering what was considered a big jump in rollout. Would shaving 2mm off the tires be a big jump? Or fine tuning? Would 1 tooth pinion change be a big jump or fine tuning? I'm just curious.
And should I cut the extra length of my axle off that sticks out 11mm past the left wheel hub?
I have no experience with the Trackstar motors, but most 17.5 motors (for 1/12 1s) will be rolled out between 95 to 105 mm. I would recommend using mm for measuring tire diameter and rollout, but I know lots of people (Team CRC) who use Imperial.
I would recommend starting at 96-98 mm and then look at fade over eight minutes to dictate where you go from there.
I personally wouldn't recommend cutting down tires to adjust rollout. I would consider a change of 2 mmpr to be 'big', but I am not entirely sure I follow what you are trying to figure out, here.
It sounds like you have bigger things to figure out than worrying about a couple grams of extra carbon axle. Also, are you sure you aren't running the rear crazy narrow? Max width is 172 mm and nearly everyone will be within 4 mm of that.