Originally Posted by sonspit
its a hard case.. what battery do u think would be ideal?
and whats your avg speeds?
I've had good luck with the Turnigy 6000mAh "Nanotech" batteries which they rate at 65~130C. The track I race at has about a 180' straightaway, and mod cars are probably hitting 50-55mph. I've only put a 3.5T motor in it once, and it hit 56mph (by radar gun) at the halfway point of the straight. Then the rotor exploded and it went from 56 to zero in about 30' (I think the previous owner of the motor may have over-cooked it). Anyway, the gearing I mentioned in the earlier post was for running a 7 minute
race with a 4.5T motor. If you're just trying to get top speed and aren't worried about motor temperature after a long run (and have a lot of room to "wind it out"), you might want to start in the 6-7 FDR range. But it's better to start with a higher ratio (smaller pinion) and work your way down to find the performance you want. Pinion gears are much cheaper than motors, ESCs or batteries.