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My hope is that my next run will provide some insights that I can share on gearing and RPM.
That efficiency curve image I shared and the ideal RPMs is controlled by specifics of your build. You have to first run the car and see what happens then adjust from there. This is where data logs of voltage and rpms are very important! Calculators only provide ball parks to help you get started with the process (and you take their values with 80% efficiency and use a calculator that allows voltage input. For example 6s after voltage drop is around 19 volts. My 8s run was around 27 volts at peak speed)
I know a solid recipe for a Limitless with on 6s for around 120mph.
MM2 ESC
34/34 gearing
castle 1515 2200kv motor.
Then comes radio range. @jondilly1974 has noted that his 3PV powered by a LiPo has range for days, but didn't work as good powered by regular AAs.... I opted to get an older 3PM that uses the FASST protocols (known for longer range) it is powered by a 3s LiPo and I see zero range issues. (no way I was going to use 8 AA batteries
That efficiency curve image I shared and the ideal RPMs is controlled by specifics of your build. You have to first run the car and see what happens then adjust from there. This is where data logs of voltage and rpms are very important! Calculators only provide ball parks to help you get started with the process (and you take their values with 80% efficiency and use a calculator that allows voltage input. For example 6s after voltage drop is around 19 volts. My 8s run was around 27 volts at peak speed)
I know a solid recipe for a Limitless with on 6s for around 120mph.
MM2 ESC
34/34 gearing
castle 1515 2200kv motor.
Then comes radio range. @jondilly1974 has noted that his 3PV powered by a LiPo has range for days, but didn't work as good powered by regular AAs.... I opted to get an older 3PM that uses the FASST protocols (known for longer range) it is powered by a 3s LiPo and I see zero range issues. (no way I was going to use 8 AA batteries