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Old 09-08-2007, 06:07 AM   #1
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Default Hyper PBS conversion on 12S lipo!

This is our OFNA hyper PBS electric conversion:




We use a NEU 1912-1Y "ORK" motor and run it on 12S lipo with a CC phoenix 85HV. We choose that motor because it spin at max 36K rpm (max torque between 20K & 30K) therefore minimum gearing mod was required.

However a metal casing has to be made to seal the motor from dirt.

We first powered it with four TrueRC 11.1V 2100mAh packs in serie, these packs had powered a swift helicopter for a year so they were good for a suicide retirement. We didn't how much power the system could drain so we didn't wanted to risk fresh packs.

The buggy have an infinite amount of power, top speed in the 80-90 km/h range and it throw rocks so hard it's almost dangerous.

We had a small bashing session today in a dirtbike track and recorded it with eagletree micropower. The prop/headspeed measurement is actually ground speed calculated from motor rpm/gear ratio and tire diameter.



From that graph we can extrapolate a run time of about 14mins

-Hugo
www.truerc.net
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Old 09-08-2007, 08:05 AM   #2
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i want one how much? and how fast?
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Old 09-09-2007, 04:51 PM   #3
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Max speed is 75-80 km/h, it can't be bought (yet) the motor case was custom machined for us. Making another will be around 800-900$ without the buggy.
The pack cost 190$ which is not too bad.

-Hugo
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Old 09-09-2007, 04:54 PM   #4
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quite sweet, how much are those motors, ive read they are quite pricey, but well worth the cost.
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Old 09-14-2007, 01:37 PM   #5
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These motors are not so expensive (212$), of course I compare them to plentenberg or lehner. And indeed they are worth every penny.

-Hugo
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Old 10-09-2007, 04:57 AM   #6
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We made some video of the buggy, see here:
Video#1
Video#2
Video#3

Enjoy

-Hugo
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