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-   -   Hyper PBS conversion on 12S lipo!! (https://www.rc-monster.com/forum/showthread.php?t=7840)

HugeOne 09.24.2007 12:13 PM

Hyper PBS conversion on 12S lipo!!
 
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This is our OFNA hyper PBS electric conversion:

http://www.truerc.net/canada2/threads/pbs1.JPG

http://www.truerc.net/canada2/threads/pbs2.JPG

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.

http://www.truerc.net/canada2/threads/hyper5.JPG

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

-Hugo

lincpimp 09.24.2007 12:16 PM

Any pics or links?

How bout a post of that eagle tree data!?

brushlessboy16 09.24.2007 03:07 PM

wow!!!
1. that must have cost a fortune
2. i didnt know that all that fit under a stock body

othello 09.24.2007 10:02 PM

Already saw your conversion in a other forum. Very inspirational. High Voltage for sure is the right way to get an efficient and powerfull electric setup.

Although i am "only" runnig 10s1p A123 (33V) in a buggy geared for 67 km/h top speed i see similiar numbers with my eagletree logger running a Neu 1512/1Y (1400kv).

Runtime with 2300mAh is between 13-17 minutes. Average Amp draw is around 10A. Average Watts are between 280-350 Watt. Subtracting your short breaks your average Watts and amperage should be in the same region.

A video of your buggy would be very interesting.

i posted 2 videos with eagletree data inserts of my setup in this thread.

And lutach is coming up with a very interesting setup (10s) too.

brushlessboy16 09.24.2007 10:16 PM

mine? or pimps?

othello 09.24.2007 10:39 PM

@brushlessboy16
i was referring to the post of Hugeone (thread starter) and his conversion. sorry this was a bit misleading.

HugeOne 10.05.2007 08:18 PM

We made some vids of the beast in action
Vid#1
Vid#2
Vid#3

Enjoy!

-Hugo

brushlessboy16 10.05.2007 08:34 PM

thats awesome!
it must be nice only needing 40a to power this thing, but the 2 stick radio.......

offroader 10.06.2007 12:22 AM

Boy, this would fly if it had wings!

othello 10.06.2007 05:27 AM

Very powerfull setup >3kw :lol:

One would have to install 2 nitro .21 motors to equal this amount of power.

Good job with the eagletree inserts.

offroader 10.06.2007 09:38 AM

Hey, what cool software do you guys use to display the RPM, AMP....etc on the bottom of your video is this part of your radio system?

jnev 10.06.2007 09:51 PM

It is not part of the radio system. It is a separate unit which is called eagle tree. You can find more info on them here:
http://www.eagletreesystems.com/Car/car.html


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