FR Rayward
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Now what I'd really like to do is modify my Savage Flux centre gearbox to make it lower, lighter, and simplify it. I am working on using just 3 gears (a pinion, a spur and an idler gear) from the drivetrain to the motor. Is this possible?
Here I have my current gear setup:
Differential Ratio: 3.2222222222222223
Transmission Ratio: 2.215277777777778
Spur Tooth Count: 44
Pinion Tooth Count: 24
Total Voltage: 22.20
Motor KV: 2200
Spur/Pinion Ratio: 1.83 : 1
Total Ratio: 13.08655 : 1
Rollout: 1.40:1
Total Motor Speed: 48840 RPM
Vehicle Speed: 64.84 mph (104.16 km/h)
Ok, so if I keep the lowest gear in the CGB, a 29t idler gear, and pair it with a 20t spur and a 10t pinion, I get these figures:
Differential Ratio: 3.2222222222222223
Transmission Ratio: 2.1
Spur Tooth Count: 20
Pinion Tooth Count: 10
Total Voltage: 22.20
Motor KV: 2200
Spur/Pinion Ratio: 2 : 1
Total Ratio: 13.53333 : 1
Rollout: 1.36:1
Total Motor Speed: 48840 RPM
Vehicle Speed: 62.7 mph (100.72 km/h)
Am I correct in tapping in a 2.1 trans ratio, with the idler and the spur at 29t and 20t, or should it be 1.9?
So it would look like this, looking horizontally along the chassis.
Will these 3 gears be ok to power a 6S flux?
Am I going to get the motor lower or the same height it is stock, or not?
Another one I just thought of, do I need to add a slipper clutch into this design? At the moment, I have cranked down my spur slipper nut (3 of them, all locktite'd) as hard as I possibly could, and haven't had any CGB fails yet.
All these questions even before I start working on the gear mounts and the motor sliding mounts haha..
So, opinions, comments, tips, please roll them in!
Here I have my current gear setup:
Differential Ratio: 3.2222222222222223
Transmission Ratio: 2.215277777777778
Spur Tooth Count: 44
Pinion Tooth Count: 24
Total Voltage: 22.20
Motor KV: 2200
Spur/Pinion Ratio: 1.83 : 1
Total Ratio: 13.08655 : 1
Rollout: 1.40:1
Total Motor Speed: 48840 RPM
Vehicle Speed: 64.84 mph (104.16 km/h)
Ok, so if I keep the lowest gear in the CGB, a 29t idler gear, and pair it with a 20t spur and a 10t pinion, I get these figures:
Differential Ratio: 3.2222222222222223
Transmission Ratio: 2.1
Spur Tooth Count: 20
Pinion Tooth Count: 10
Total Voltage: 22.20
Motor KV: 2200
Spur/Pinion Ratio: 2 : 1
Total Ratio: 13.53333 : 1
Rollout: 1.36:1
Total Motor Speed: 48840 RPM
Vehicle Speed: 62.7 mph (100.72 km/h)
Am I correct in tapping in a 2.1 trans ratio, with the idler and the spur at 29t and 20t, or should it be 1.9?
So it would look like this, looking horizontally along the chassis.
Will these 3 gears be ok to power a 6S flux?
Am I going to get the motor lower or the same height it is stock, or not?
Another one I just thought of, do I need to add a slipper clutch into this design? At the moment, I have cranked down my spur slipper nut (3 of them, all locktite'd) as hard as I possibly could, and haven't had any CGB fails yet.
All these questions even before I start working on the gear mounts and the motor sliding mounts haha..
So, opinions, comments, tips, please roll them in!