8 Pole Heli Motor in an E Revo? - RC-Monster Forums

sikeston34m · 08.23.2010, 07:05 AM

Quote:

Originally Posted by pwnd

I found a YouTube movie with a outboardrunner'ed Revo and that got me hawt :).

Nice to see someone doing something outside the box.

I was thinking... the Tekno Revo 3.3 brushless kit states that a motor with the following specs is required:

5 mm shaft and 42mm or less in diameter. They also mention that a target rpm of 30.000 is required.

If I use the Turnigy Typhoon like mentioned above (my previous post) I should use +- 7,3s in order to get those kind of rpms.

Will I be ok with 5s if I gear it right? The sheer amount of torque can make up for the loss of rpms I presume.

To control this motor will I be able to use the Hobbywing XERUN 150A esc?

Thanks for taking the time to help me out so far. I'm still a newbie when it comes to making your own brushless combo's. I'm sorry if this is not the place to discuss this motor and esc since RC Monster doesn't sell these items.

When they mentioned a rpm target of 30,000 rpm's, THAT is for an inrunner only. Toss that out the window if you're going with an outrunner motor.

An outrunner motor makes 5 to 7 times the amount of torque that a similiar sized inrunner motor does.

The type of gearing you will run with an outrunner, most inrunner motors would burn up, trying to pull.

5S sounds good.

The Hobbywing ESC? I've never tried that one with an outrunner. Not all ESC's like outrunner motors. I know the Castle line of ESC's do.

Mike doesn't carry outrunner motors, but if he did, I would be checking those out too. LOL

Welcome to RCM.

mistercrash · 08.23.2010, 10:21 AM

Quote:

Originally Posted by sikeston34m

An outrunner motor makes 5 to 7 times the amount of torque that a similiar sized inrunner motor does.

The type of gearing you will run with an outrunner, most inrunner motors would burn up, trying to pull.

5 to 7 times more torque?! I'm thinking my converted LST might like an out runner motor. Thanks for this thread by the way, I didn't know anything about out runners but you got me curious and I started searching about them and reading.