Quote:
Originally Posted by suicideneil
12:1 FDR? that does sound rather high for a large MT type vehicle- and only 28,000rpms on 12cells. Im no expert, but that sound like an under powered & overgeared setup... I could be wrong though.
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Quote:
Originally Posted by BrianG
Yeah, I think that FDR is abit high too. Also, look at the total motor speed in MM's post; 28k rpm. You'd need to gear up pretty high to get the speed you want with that motor speed. I would suggest going with higher voltage or slightly higher kv motor to get rpms in the 35k range. Then you'll see you won't need such high gearing.
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With the Revo that Lincpimp has now, I ran a 7XL on 5s2p A123 with 20/46 pinion/spur. It had plenty of power, and 40mph top speed was enough for me. The 7XL ran at a good temp, but as Lincpimp noted, the MM runs hot.
SH Z-Car, Custom Crawler, 8s Savage,
12s XTM XLB 1/7 buggy,
4wd 4-link rear/IFS Pro4 truck,
Custom Hyper 10 Short Course,
Belt-Drive Mammoth ST 1/8 truggy, 4s 17.5 MM Pro HPI Blitz