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6s Gearing for rc8.2e

6s Gearing for rc8.2e

Old 08-01-2013, 04:15 PM
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Default 6s Gearing for rc8.2e

Hey guys ive been wanting to run 6s on my rc8.2e but I dnt what to gear it. Right now for 4s im running 20-46 and its perfectly fine im running the castle 2200kv with MMM and an external bec. I mainly do alot of bashing and speed jump. Any suggestion are welcome
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Old 08-01-2013, 05:39 PM
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try what you have first and change it if temps are too high
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Old 08-01-2013, 07:03 PM
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Ok man. Should I stay around 150-160 on the motor but what for Esc?
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Old 08-01-2013, 09:39 PM
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try to stay less that 165 on motor and on esc 140 but this really will depend on what motor and esc you have.
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Old 08-01-2013, 10:35 PM
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Ok btw I have the castle 2200kv motor and Mamba monster esc
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Old 08-02-2013, 07:29 AM
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20T pinion? Way too much on 6S.
I would have tried 15T on 6S, even that is high
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Old 08-02-2013, 09:32 AM
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Just throwing a 6S battery in the buggy and using the same gearing will result in about a 50% increase in current. Your motor and ESC will get very hot and you will not be able to keep the wheels on the ground. I would suggest using Castles Torque Limiter feature and gearing down a bit. Run the motor test in the ESC software and set the Torque Limiter to no higher than 5.0 on a scale from 0-10.

You'll still be crazy fast and should notice aslight increase in runtime too.
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Old 08-02-2013, 09:33 PM
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Originally Posted by ThePanda View Post
try what you have first and change it if temps are too high
This is one of the most common, and rather costly, newbie mistakes, thinking voltage can be increased without re-gearing. Leads to a lot of burned up stuff. Especially with what is already a high powered setup.

Much safer to start with lower gearing, and then work back up some if temps allow. Granted it's possible to under gear too, but I doubt if a 20 is under geared on a 1/8, as others have mentioned.
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Old 08-02-2013, 11:51 PM
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Originally Posted by Dave H View Post
This is one of the most common, and rather costly, newbie mistakes, thinking voltage can be increased without re-gearing. Leads to a lot of burned up stuff. Especially with what is already a high powered setup.

Much safer to start with lower gearing, and then work back up some if temps allow. Granted it's possible to under gear too, but I doubt if a 20 is under geared on a 1/8, as others have mentioned.
Oops my bad sorry
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Old 08-03-2013, 10:33 PM
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Ok guys thanks for the help. But what If I would like all the tork and not do the tork limiter by cas5le, would that increase in temps? Also tomorrow im going to start with a 16 pinion then see from their
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Old 08-03-2013, 11:38 PM
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16t should be fine. I'd run an 18t max with 6s. Watch your tyres though, some won't last long on 6s with high speed.
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Old 08-03-2013, 11:56 PM
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Ok man thanks. And hopefully I dnt blow up my tires lol
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Old 08-04-2013, 12:09 AM
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A good rule when increasing voltage is to drop 2 teeth per cell change. So youre at 20T with a 4S, so drop to a 16T with 6S.
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Old 08-04-2013, 06:52 AM
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Some simple fractions that can help here. You are increasing the voltage by 6/4 so you need to drop the gearing by the inverse to have the same speed so 4/6 of 20 which is 13.33 so either a 13 or 14. Work up from there.

Keep in the mind that the system is going to run hotter even though it is the same speed. The farther from about 35,000 rpm you get, the less efficient the motor gets.
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Old 08-04-2013, 11:04 AM
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Ok guys thanks alot. I appreciate it
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