Weapon of Choice

LOL, I safety wired a barbie doll to my RC car body once.

Weapon of Choice

I can actually get it to go faster than 62mph, but I just geared it to run to about 65 or so for the acceleration. I have run electrics up to about 80 mph before.

A4MALITY˛(Joel)

a similar brushed motor, with equal cells?
What's the winding on the brushless?

Weapon of Choice

It's hard to compare a brushed vs brushless because they really are completely different.

Let's compare the only thing that they have in common: effeciency. The *best* brushed 540 motors (i.e. RC Car spec) are at about 49-50% efficient. This is not to say that they are putting out the most power possible, just putting out the most power at the most effecient rate. If you add timing to the regular brushed modifieds, their power goes up quite a bit, but their efficiency goes in the toilet.

Brushless motors are about 80 to 83% efficient. Furthermore, the more cells you add, the faster they go, and it's almost impossible to burn them up without doing something insane. I have run brushless motors with 20 cells before.

Getting back to the point, a brushless motor can put out at least 30% more usable power at the wheels than a brushed motor, given the same wattage rating, i.e. how many amps does it pull for a given voltage. So if your 9 double pulls like 100W, and I design a brushless to pull 100W at 7.2V (6 cell pack) expect another 30% more power at the wheels.

A4MALITY˛(Joel)

Thanks for the info.

jaykay

is this the CVT or QUATTRO