Hi everyone, my name is Ray and am 30 years of age; I live in Colorado. I been in RC for about 15 years but I been out for almost 2 years now and I am just getting back into the groove of things. When I left the scene, BL and lipo was just heating up and now it has just exploded... very cool to see! So I have a few questions if you wouldn't mind helping me out a little. You can even just give me links; that will work dandy.

Can someone give the the scoop of the numbers on BL motors. I am reading up on them but am very confused.

For example: The Lehner Basic 5300 and Basic 4200 motors have the same peak RPM capabilities, but since the 4200 has a lower RPM/V and can run on more cells, it will have more torque than the 5300. However, in small car applications, the 4200 will have lower top-end speeds on only 6 and 7 cells than the 5300 on the same number of cells.

Motor Power(Watts) @ Amps RPM's/Volt
Basic 5300 700 Watts @ 55 Amps 5300
Basic 4200 600 Watts @ 45 Amps 4200


So what the heck do I look for in the numbers and what do they mean? I read that above statement yet it makes no sense to me at all. What makes a BL motor have more speed VS more torque and so fourth?

Also, I heard something about you need a higher voltage battery for higher kv motors; is this true?

"Not having enough amps in a lipo pack means that the? motor is trying to draw amps that the pack cannot deliver and thus causing the pack to over heat and BOOM!!!" This is what I am referring to, so how do I make sure all my "numbers" are good to go?

I'm thinking about putting a Novak HV 5.5 or Novak Ballistic 5.5 or motor in to my Slash and am wondering if anyone has tried this yet. I noticed that the HV 5.5 has 800 Watts and 3,700 RPM and the Ballistic has 420 Watts with 7,400 RPM. I see huge difference in the the RPM and Watts on both, they are like way two different motors even though they are the same turns... 5.5? I don't know too much about BL motors at all but I am trying to learn more.

HV 5.5 - 800 Watts and 3,700 RPM (11.1v would make it max out on 41,070 RPM's?)
Ballistic - 420 Watts with 7,400 RPM (11.1v would make it max out on 82,140 RPM's?)

Do more Watts translate to more torque beings the Novak has higher Watts but lower RPMs?

I know sensored motors are more wild than sensorless systems, basically that's all I really know about BL besides the turns like on the brushed motors.

Ray