Originally Posted by Tulsa TC3
the FDR from novak is 4.5 that is wicked fast, so if i go up in teeth i should technically run cooler? motor already has a heatsink and fan will be tomorrow
Yes, generally speaking when a motor is geared with a low FDR and its getting hotter than recommened then moving to a higher FDR should allow the motor to run cooler.
Less teeth on pinion = higher FDR
More teeth on spur = higher FDR
One thing to be mindful of however is that going too high in FDR can also have the motor come off the track too hot. The motor revving itself at high rpms will also heat up.
I have run a 13.5 LRP (original x11 w/ bonded rotor) for the last few weeks and run an FDR of 5.8.
The track is indoor/carpet/rubber and fits on a basketball court and is about 80m to complete a full lap, very technical layout.
Just be careful of manufacturer recommendations, track size/layout/surface play a part in selecting the appropriate gear ratio for your motor.