smirkracing
Well-known member
- Messages
- 150
- Reaction score
- 52
- Tekno RC's
- EB410
- EB48
- ET48
- Driving Style
- Basher
Hi all, didn’t get enough detail over on RCTech so thought I would post here since the motor I am selecting is for the EB48 2.0.
I am running a 6s pack in my 8th scale buggy (bashing, not racing) and I could use some advice about which motor to select.
My current choices are either 1800kv, or 1300kv. Other than the kv rating, the motors are identical (same mfg, same length and diameter, same weight, etc). Both motors have the same max RPM rating (50k).
With a 12 tooth pinion, the 1800kv motor gives me the top speed I'm looking to achieve, which is about 45mph. However, the motor is running quite hot.
If I bought the 1300kv motor, I could increase the pinion to a 16 tooth pinion and I'd get the same top speed (more or less, at least in theory).
The big difference I see is that the 1800kv motor spends a lot of its time at about 90% of max RPM (about 45k rpm, again at least in theory) whereas the 1300kv will spend most of its time closer to 65% of its max RPM (theoretically). For the sake of discussion lets assume running on wide open spaces with mostly wide open throttle.
Any advice on this? Which will run cooler (which is my primary concern)? I can (and will) use cooling fins and fans later, but for now I just want to get the motor selection right.
Thanks in advance.
I am running a 6s pack in my 8th scale buggy (bashing, not racing) and I could use some advice about which motor to select.
My current choices are either 1800kv, or 1300kv. Other than the kv rating, the motors are identical (same mfg, same length and diameter, same weight, etc). Both motors have the same max RPM rating (50k).
With a 12 tooth pinion, the 1800kv motor gives me the top speed I'm looking to achieve, which is about 45mph. However, the motor is running quite hot.
If I bought the 1300kv motor, I could increase the pinion to a 16 tooth pinion and I'd get the same top speed (more or less, at least in theory).
The big difference I see is that the 1800kv motor spends a lot of its time at about 90% of max RPM (about 45k rpm, again at least in theory) whereas the 1300kv will spend most of its time closer to 65% of its max RPM (theoretically). For the sake of discussion lets assume running on wide open spaces with mostly wide open throttle.
Any advice on this? Which will run cooler (which is my primary concern)? I can (and will) use cooling fins and fans later, but for now I just want to get the motor selection right.
Thanks in advance.