motor conversion

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Madwood
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motor conversion

Unread post by Madwood » Sun Apr 25, 2010 4:22 pm

how do i figure out the proper motor replacement for the following:

Mini Pulse XT - 890kv motor to a Turnigy

and

Parkzone bushed/geared 370

Also any thoughts on the Turnigy Super Brain 40A Brushless ESC
for $30. they had no 25 or 30 amp esc's in stock
Michael Wood, HEFA Pilot

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Enforcer
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Re: motor conversion

Unread post by Enforcer » Sun Apr 25, 2010 6:28 pm

Look to the Force (internet) for the answer Luke. Beware of the Darkside in your quest for the truth!

http://www.rcgroups.com/forums/showthread.php?t=962051

Wait for them to come in stock. Have them send you and e-mail when they arrive. See the bottom of the page, for that ESC, on the HK site.

Why would you want to convert the geared 380... they are so cheap? What plane are you thinking of converting?
Murray Wheten

“My philosophy, like color television, is all there in black and white”
Monty Python

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Madwood
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Re: motor conversion

Unread post by Madwood » Sun Apr 25, 2010 6:58 pm

This is for the parkzone cub I have, it runs on NiMi and was thinking about converting it to lipos and possibly an outrunner.
Michael Wood, HEFA Pilot

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retiredVTT
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Re: motor conversion

Unread post by retiredVTT » Sun Apr 25, 2010 7:12 pm

Send Andrew S. a pm...I believe he converted his Cub to a three wire motor and Lipos..

For the Mini Pulse... think about a 150/200 watt motor that weighs about 2.5 oz and swings a 10/5 prop and draws around 15/18 amps from a 3S pack and you will be close to the original specs.


Bill
Bill
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Re: motor conversion

Unread post by Enforcer » Mon Apr 26, 2010 12:37 pm

Madwood wrote:This is for the parkzone cub I have, it runs on NiMi and was thinking about converting it to lipos and possibly an outrunner.
There are $8.00, 30 amp, brushed ESCs and $3.00 HXT900 servos you can get from HK. You can then keep the motor you have, and still run Li-POs. You will need a receiver as well.

The origianl motor is MORE than powerful enough to run the cub and can be purchased locally for just $10.00.

Anyway, just a thought... it's what I did to mine (now Dave's)!

Murray
Murray Wheten

“My philosophy, like color television, is all there in black and white”
Monty Python

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lawndart
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Re: motor conversion

Unread post by lawndart » Tue Apr 27, 2010 1:16 pm

Hi Mad --

You might find that the original ESC will work with lipos just by resetting a jumper or changing the programming.

My Parkzone Spitfire is brushed/geared and was originally set up for NiMh, but the kit included instructions for programming the ESC for Lipo. It was pretty easy, using the transmitter and listening to the ESC's beeping: here are the instructions. Once reprogrammed it will have the standard Lipo low voltage cut-off. Good luck!

Dave
------d-a-v-e---------------- >}-

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retiredVTT
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Re: motor conversion

Unread post by retiredVTT » Tue Apr 27, 2010 1:37 pm

Great buy here on a 25 amp esc from HK ..
http://www.unitedhobbies.com/unitedhobb ... oduct=3731

Bill
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Re: motor conversion

Unread post by Enforcer » Tue Apr 27, 2010 7:57 pm

lawndart wrote:Hi Mad --

You might find that the original ESC will work with lipos just by resetting a jumper or changing the programming.

My Parkzone Spitfire is brushed/geared and was originally set up for NiMh, but the kit included instructions for programming the ESC for Lipo. It was pretty easy, using the transmitter and listening to the ESC's beeping: here are the instructions. Once reprogrammed it will have the standard Lipo low voltage cut-off. Good luck!

Dave
But he will have to continue to use the 27 MHz radio. I think he wants to use his Spektrum radio. (he mentioned this at the field... I think). Therefore, the changes I mentioned are needed. The Cub uses 5 wire servos, not 3 wire as you have in your Spit Dave.
Murray Wheten

“My philosophy, like color television, is all there in black and white”
Monty Python

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Madwood
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Re: motor conversion

Unread post by Madwood » Wed Apr 28, 2010 3:30 pm

Ordered two of the 25amp esc's bill recommended, for $10 each and the Turnigy SK 35-30 1100 as per RC groups thread Murray supplied, however after a little more research I think it might be a little to big...oh well i'm sure I'll find something else to put it in, don't really need the motor anyway just at $18 I couldn't resist.

Also picked up 3x1cell 140mah batteries for indoor flying next year at $1.50 each, again couldn't resist.
Michael Wood, HEFA Pilot

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retiredVTT
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Re: motor conversion

Unread post by retiredVTT » Wed Apr 28, 2010 4:20 pm

Atta boy..Mikey..we will keep recommending, if you will keep buying..!

Those esc's are definitely a buy...will handle 4S packs as well..!

Bill
Bill
HEFA #5
MAAC #13708

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