Brushed motor wiring questions

[lincpimp]

Originally Posted by lydiasdad

Sorry I meant to link to it. Don't waste on other big brushed motors, believe me I have tried them all. Not even close to the dewalts. Here http://www.robotcombat.com/products/dewalt_motors.html The motors I have are the "new" 18 volt motor. The speed controller I used is on this site also.

Thanks, do you think that a MM would be able to handle 2 of them? Any idea what speed they turn at a specific voltage?

Maybe I would only need 1 of them? I really can't see a brushed motor doing more than 500 watts...

[lydiasdad]

Originally Posted by lincpimp

Thanks, do you think that a MM would be able to handle 2 of them? Any idea what speed they turn at a specific voltage?

Maybe I would only need 1 of them? I really can't see a brushed motor doing more than 500 watts...

I peaked 1900 watts on my eagle tree with that 18 volt dewalt motor in my 1/5 scale e-maxx/baja(waiting on MM). It was doing a constant 700 plus watts. That was using 6s2p a123 cells. I also ran 8s1p1 a123 and peaked at 1700 watts. If those numbers are right those HO motors suck. Like I said I tried them all before going brushless and the dewalts are the most powerful brushed motors of that size. I still run one in my jugg2 on 6s 123cells. I do think the mamba can run it. Just use the high power wiring setup.

[Oppressor]

Originally Posted by lydiasdad

I peaked 1900 watts on my eagle tree with that 18 volt dewalt motor in my 1/5 scale e-maxx/baja(waiting on MM). It was doing a constant 700 plus watts. That was using 6s2p a123 cells. I also ran 8s1p1 a123 and peaked at 1700 watts. If those numbers are right those HO motors suck. Like I said I tried them all before going brushless and the dewalts are the most powerful brushed motors of that size. I still run one in my jugg2 on 6s 123cells. I do think the mamba can run it. Just use the high power wiring setup.

In fact there is a few more powerful brushed motor at that size. One of the most fearsome one are astro cobalt motors reaching 85 to 88% efficiency iirc.

http://www.astroflight.com/index.php...products_id=85
http://www.astroflight.com/index.php...products_id=87
http://www.astroflight.com/index.php...roducts_id=126
http://www.astroflight.com/index.php...roducts_id=128

The astro cobalt 90 is said to be able to replace a .90 glow engine on a plane... 1500-1600 watts continuous which is near a neu 1521 but at 2 pound. The good point though is that controller handling brushed motors are more robust...

[lydiasdad]

Originally Posted by Oppressor

In fact there is a few more powerful brushed motor at that size. One of the most fearsome one are astro cobalt motors reaching 85 to 88% efficiency iirc.

http://www.astroflight.com/index.php...products_id=85
http://www.astroflight.com/index.php...products_id=87
http://www.astroflight.com/index.php...roducts_id=126
http://www.astroflight.com/index.php...roducts_id=128

The astro cobalt 90 is said to be able to replace a .90 glow engine on a plane... 1500-1600 watts continuous which is near a neu 1521 but at 2 pound. The good point though is that controller handling brushed motors are more robust...

Those are a bit more powerful, but the dewalts are one tenth the price.