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Old 01-04-2015, 07:33 PM   #1
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Default 21.5 High trq or high RPM motor for Formula 1? First time driving direct drive too.

21.5 High trq or high RPM motor for Formula 1? First time driving direct drive.
Also which motor do you recommend for a LRP Flow esc?
Chassis is Tamiya TRF101.
Thanks!
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Old 01-04-2015, 07:49 PM   #2
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I prefer high rpm, last thing a F1 needs is more punch.
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Old 01-04-2015, 07:54 PM   #3
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I prefer high rpm, last thing a F1 needs is more punch.
It depends if you're running on rubber or foams. In Japan we run 13.5 to 14.0 rotors. Need that extra rip . Rubber tires, not so much. As you mentioned RPM would be the way to go. .
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Old 01-04-2015, 08:41 PM   #4
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Just depends how you gear it. The trackstar 21.5 is known to be a torque motor, but if geared at 80mm/rev or higher, it certainly becomes very easy to drive and with good top speed. If you geared it at say 70mm/rev it would be very hard to drive.
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Old 01-06-2015, 04:30 AM   #5
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Depends on the above plus your track size. Also purchase a ESC that offers really good punch/torque controls.
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Old 01-06-2015, 06:15 AM   #6
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Quote:
Originally Posted by liftmys10 View Post
21.5 High trq or high RPM motor for Formula 1? First time driving direct drive.
Also which motor do you recommend for a LRP Flow esc?
Chassis is Tamiya TRF101.
Thanks!
Get someone who knows about 1/12's etc to check your ball diff.
The diffs make a huge difference in 1/12 so probably will in F1 as well.
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Old 01-06-2015, 06:18 AM   #7
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It depends if you're running on rubber or foams. In Japan we run 13.5 to 14.0 rotors. Need that extra rip . Rubber tires, not so much. As you mentioned RPM would be the way to go. .
In the UK any approved motors and option rotors have a limit of 12.5mm on the rotors.
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