HV motor question

[SpEEdyBL]

Originally Posted by lutach

Good question. I'm sure they are 2 poles mainly because of the way the magnet is. If it had more the 2 poles it would look something like a Aveox and Neu.

Good thing you started this thread because I have a question for the Novak guys as well.

What would be the Kv of a HV 1.5 and 2.5?

Reason for the question is, I'll be soon having a 200A ESC coming and I plan on using the above mentioned HV to try and set a 2S lipo speed record.

Do the math. If the 4.5 is 5000 kv a 2.5 would theoretically be 4.5/2.5 x 5000 = 9000kv and a 1.5 would be 4.5/1.5 x 5000 = 15000 kv, but in reality, I would guess more like 8000 and 12000 since it would be hard to fit all that wire in the stator with less turns to work with.

[lutach]

Originally Posted by SpEEdyBL

Do the math. If the 4.5 is 5000 kv a 2.5 would theoretically be 4.5/2.5 x 5000 = 9000kv and a 1.5 would be 4.5/1.5 x 5000 = 15000 kv, but in reality, I would guess more like 8000 and 12000 since it would be hard to fit all that wire in the stator with less turns to work with.

You might be right, but I was hoping the Novak guys would give their answer. I'm actually going to send it to a guy to have it done and I'm going to get a 200A ESC soon to try it out. It should be fun .

[NovakTwo]

I can check with the engineers, but I'm not sure we have ever been interested in those low wind HV motors. So, no reason to wind, test and measure 1.5s or 2.5s.

Like I have said, I don't have the qualifications to answer tech questions. Speedy's Kv estimates are probably as good as any others. I'll check on the number of poles.

If you are putting an HV 4400 in a "new" E-Maxx, you need to install the 5mm shaft rotor.