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Old 05-29-2017, 04:06 PM   #46
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Nobody has mentioned heat. Does a 2S set-up run hotter, cooler, or about the same as an equivalent 1S?
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Old 05-29-2017, 04:45 PM   #47
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Nobody has mentioned heat. Does a 2S set-up run hotter, cooler, or about the same as an equivalent 1S?

Honestly. Starting the first run tire size 40.8
Gear 78/40. Was a little hot. 46 degrees on motiv mc2 17.5

Went to 40/88. Was too bad. But car was spooling up better

39/88. Even better
No fan on speedo or motor at the moment

I'm gonna do some 6 min runs on Wednesday. And will temp after run

Using a reedy 510r. Motiv 3900 defy slim shorty
Motiv mc2 17.5. Ht rotor

I have a ts 17.5 motor coming with 3 line rotor to test also
Along with a smaller rotor mc2

I think the smaller rotors may run more effecient. But will see

If tgere are guys out there. That have multiple 1/12. This is def something to try. The setup not too different because weight is basically the same

We are gonna try the pf12 body also. To see how they handle. But the pro lite bmr.1 was pretty dialed. And I'd imagine a amr would be as well

The Beutiful thing is the spec tire

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Old 05-29-2017, 08:23 PM   #48
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Hey Lonny, the Bantas dont need fans on their Tekin ESCs when running 2s/13.5, but I do on my LRP when running standard mod. ESC is hotter than the motor in mod 1/12, at least for me.
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Old 05-30-2017, 04:26 AM   #49
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Nobody has mentioned heat. Does a 2S set-up run hotter, cooler, or about the same as an equivalent 1S?
For motors of equal power and efficiency, the ESC will run cooler on 2s vs 1s since the current is halved. The wires will also be cooler, but typically that isn't a concern, regardless of battery type.
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Old 07-25-2017, 10:05 AM   #50
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Default 1/12 2s mod motor experiment

I had been running 2s with an old LRP 17.5 on my 1/12 and found its too slow and getting quite hot. I wonder if I can gear it properly to run a 7.5t with the 2s?

I prob start with the smallest pinion that will mesh up with the spur.
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Old 07-25-2017, 10:18 PM   #51
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I had been running 2s with an old LRP 17.5 on my 1/12 and found its too slow and getting quite hot. I wonder if I can gear it properly to run a 7.5t with the 2s?

I prob start with the smallest pinion that will mesh up with the spur.
If you don't go crazy with timing etc. I think you should get something that will work. But be warned, it will be damn fast!

As a comparison, I ran an 8.5t on 2s in my 1/12 last weekend at TQ Raceway in Chino. In the main I went with a gearing of 24:90 (37mm rollout), static timing of 24°, 15° Boost at 20k rpm, and 20° Turbo using a Tekin RS Gen2. No temperature concerns with the motor or esc (Below 150°F).
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Old 07-26-2017, 04:19 AM   #52
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I know there was lots of debate on this thread about 2s vs 1s lipo motor speeds.

I am confused because with the voltage booster on 1s would make 7.4v = equal 2s voltage at 7.4v wouldn’t it be virtually the same?
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Old 07-26-2017, 05:59 AM   #53
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I know there was lots of debate on this thread about 2s vs 1s lipo motor speeds.

I am confused because with the voltage booster on 1s would make 7.4v = equal 2s voltage at 7.4v wouldn’t it be virtually the same?
The booster is only for the receiver and servo or anything connected to it.
Will not affect motor voltage.
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