whats the diffrence between brushed engines and brushless?

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08-18-2007, 08:52 PM

#16

Grizzbob

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Quote:

Originally Posted by UN4RACING

You can hook it direct. The third wire is polarity.
Now that I think about it more. There is no spark, so the speed control may be converting the DC power in some way.??

I believe that's correct. The reason why you can't use a brushed ESC with brushless motors is because a brushless ESC has to energize each individual section of the stator(that's the sets of windings in the can) seperately in order to make it move, & just hooking it up to power can't do that(& brushed ESC's just turn on & off, really, it's just the frequency of it turning off & on that determines how fast the motor will go). Also, you don't have to spend as much money as BlackedOutRevo suggested, in fact you can find a complete brushless system(motor & ESC) for as little as $180(namely, Novak's XBR speed control & EX-Series BL motor combo, check out prices on those at Tower Hobbies, if they have them in stock yet), should be a GREAT way to get started with brushless, & the motor can also be upgraded later when finances permit(those motors come with a bonded rotor, which is not as efficient as the latest sintered ones, & they also run hotter so you have to be careful about gearing them, but geared right they're still strong & will get you going till you can buy a sintered rotor, then it should be near bulletproof). Brushless motors ARE indeed the future, & at many tracks, they're already being accepted, even in stock classes(we're finally allowing them at my track, so now I can just concentrate on gearing, car setup & driving, definitely much less hassle now)....

08-18-2007, 08:53 PM

#17

UN4RACING

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Quote:

Originally Posted by parnelli97

It almost sounds more like a stepper motor, it sends feedback to the ESC as to it's position and that allows the ESC to respond... I don't know much about BL but I'm trying to learn, because I'm building a few drag cars and I want SPEED!!! The catch is even BL isn't fast enough stock.

I would say the BL will with stand as much battery as you can put to it though. Maybe a Mamba speedo or even a aveox speedo.?

08-18-2007, 08:57 PM

#18

parnelli97

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Slightly off topic but I found this place. The cheapest BL setups I've ever seen.
http://www.b-p-p.com/index.php?PHPSE...7da1ac1c0b5aeb
I don't work for them, or get any kick-backs but DANG they have some cheap prices

08-18-2007, 09:08 PM

#19

UN4RACING

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Those are serious low prices. Wow.

08-18-2007, 09:22 PM

#20

parnelli97

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ok back to the topic, what would be the fastest BL motor?

08-19-2007, 05:40 AM

#21

UN4RACING

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Quote:

Originally Posted by parnelli97

ok back to the topic, what would be the fastest BL motor?

I would have to say the voltage would make the difference, the more voltage the faster it will go. All the manufacturers have a fast motor.
Some guys have batteries pushing 14.4 volts. Wow thats gotta be fast.?