RCCrawler Forums

liketocrawl · 07-09-2008, 08:49 PM

What are the pro's and cons of having a brushless system over brushed?

Nova's Ark · 07-09-2008, 10:17 PM

Quote:

Originally Posted by liketocrawl

What are the pro's and cons of having a brushless system over brushed?

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Brushed = ultra smooth low speed control, needs maintenance (ie. replacement of brushed, cutting of comm, etc), also doesn't have as strong a drag brake as brushless

Brushless = crazy torque, no maintenance, very strong drag brake, but currently lack the low speed control of a brushed motor, did I mention crazy torque

?

Even a very small Holmes brushless Revolver will break things on only a 2S lipo (7.4V). I personally prefer brushed motors, but I own both. Since I run my scale rigs in the water, I prefer to run brushless in them for lack of required maintenance. I run brushed in my comp rigs though because of the smooth throttle control.

liketocrawl · 07-09-2008, 10:26 PM

Thanks for the tip.

Krawler Freak · 07-09-2008, 10:28 PM

pros of brushed they look good in a case
pros of brushless they look good all the time
make your life easier,

ultra low maintace
better efficiency (longer run times)
more power (always a plus)
make your ring cooler (even more than that nos sticker you have on there)

mysharona · 07-10-2008, 05:29 AM

+'s
more power, longer runtime, faster.

-'s
EXPENSIVE, cogging, pricey.

brushed motors are super smooth, and best of all, cheap!

Steve-0 · 07-19-2008, 01:24 AM

hey, does anyone know how battery life compares between like a 1kv brushless system vs a 55t lathe motor using the same battery?

XPLORx4 · 08-14-2008, 02:33 PM

So, I understand that brushless motors are maintenance-free, but how much maintenance do brushed motors require? I mean, how often do the brushes and armatures need to be replaced? In other words, is the maintenance-free aspect of brushless motors worth their higher price?

yotee · 08-14-2008, 05:48 PM

what would the batt run time be like on a 7 turn vs a goat system be like, say a 1500 mah batt with 7 cells

Stormin2u · 08-14-2008, 06:16 PM

I ran out runners prior to getting a Novak Goat and the Goat is the only brushless I will run it's smooth and controllable.

Out runners usually cog a little at start up and never supply smooth control at any point in the power curve IMO.

I would pick any brushed motor or the Goat for their smooth control before any out runner on the market today.

My Goat runs 45 mins. on a 1500 6 cell 7.4 NiMH pack.

breitenbach14 · 08-14-2008, 09:13 PM

ive had my 55t motor since last year on January and haven't changed the brushes or cleaned it so that doesn't seem like a lot of maintenance to me

frdtrkguy · 08-14-2008, 09:25 PM

Brushed motors got a bad rap for high maint. in the racing circles where it isnt uncommon to cut the comm and replace brushed ever couple of runs. In crawling the amp draw is so low that a 55t lathe will last damn near forever.

Prostreet · 08-14-2008, 09:49 PM

I was also thinking the price of the brushed would allow you to buy 2 or 3 for the price of 1 brushless. I will try my RTR Axial with the stock motor for a while, once it is back in stock. But I have been spoiled with my brushless Stampede and Rustler.

Nick77 · 08-14-2008, 10:17 PM

i am currently workin on my brushless set up,but my brushed motor just wasn't enough after a while.plus i ran mine a ton so it was gettting some wear on it.im gunna be running the bm 16 brushless from the crawler store,what do you guys think about that motor?

NovakTwo · 08-15-2008, 09:29 AM

When you wear out you brush motor, you throw it in the trash.

When you wear out your Novak BL motor, you swap it for a replacement motor for @35.00 (w/new 120 warranty):

Novak Motor Replacement Program

Nick77 · 08-16-2008, 02:18 PM

i would do that if i had novak brushless,but i don't. and that brushed novak is sick ass hell now.waitin on my esc to come back for cc so i can put it all together

str8axle · 08-19-2008, 12:09 PM

One other thing that I experienced with brushless was wierd anoying noises. I had a crawlmaster and mamba max and I could not stand the sounds the esc made when first plugging it in, and then when you drive it had a strange whine to it that was distracting to say the least. When I switched to a brushed motor it was almost silent both driving and powering up! It crawls way better IMO with the brushed.

For sale Crawlmaster brushless motor used once, like new. Best offer.

CharliesTheMan · 08-20-2008, 05:25 AM

I used to say that I would have nothing but brushless and LiPo, because I started out with other types of RC cars and trusck before I got into crawling. When I got into crawling, I bought a Novak goat before I even got my axial. I ended up with two goats and liked them pretty good. But then I got a chanve to run a high end brushed crawler motor. After I ran my mamba/Holmes Hobbies cobalt setup, I had sold both goat systems within a week. I now have two Holmes Hobbies 7 turn cobalt motors, and two holmes hobbies 35 turn handwound 540 motors. The main reason that I went from the brushless to the Holmes Hobbies motors is because they are so much smoother on low end throttle response, partly because you can run a 3 cell lipo, and volt up and gear down, which provides a much smooher start up and throttle response. The Novak Goat is supposed to be limited to 2S LiPo, although it's quite strong on 2S.

I HIGHLY reccomend Holmes Hobbies brushed motors. John Robert Holmes has some of the best service in the industry, and IMO the best motors on the market, period.

07-09-2008, 08:49 PM	#1
liketocrawl Quarry Creeper Join Date: Jul 2008 Location: Garden State Posts: 298	Brushless Motors What are the pro's and cons of having a brushless system over brushed?

07-09-2008, 10:28 PM	#4
Krawler Freak Rock Crawler Join Date: Feb 2007 Location: In A Nut Shell Posts: 626	pros of brushed they look good in a case pros of brushless they look good all the time make your life easier, ultra low maintace better efficiency (longer run times) more power (always a plus) make your ring cooler (even more than that nos sticker you have on there)

07-09-2008, 10:26 PM	#3
liketocrawl Quarry Creeper Join Date: Jul 2008 Location: Garden State Posts: 298	Thanks for the tip.

07-10-2008, 05:29 AM	#5
mysharona Rock Crawler Join Date: May 2007 Location: lacey Posts: 833	+'s more power, longer runtime, faster. -'s EXPENSIVE, cogging, pricey. brushed motors are super smooth, and best of all, cheap!

07-19-2008, 01:24 AM	#6
Steve-0 Newbie Join Date: Jun 2007 Location: Australia Posts: 20	hey, does anyone know how battery life compares between like a 1kv brushless system vs a 55t lathe motor using the same battery?

08-14-2008, 02:33 PM	#7
XPLORx4 Quarry Creeper Join Date: Jul 2008 Location: Galt Posts: 282	So, I understand that brushless motors are maintenance-free, but how much maintenance do brushed motors require? I mean, how often do the brushes and armatures need to be replaced? In other words, is the maintenance-free aspect of brushless motors worth their higher price?

08-14-2008, 05:48 PM	#8
yotee Newbie Join Date: Dec 2007 Location: in the yard wathcin the 6y0 school y'all Posts: 12	what would the batt run time be like on a 7 turn vs a goat system be like, say a 1500 mah batt with 7 cells

08-14-2008, 06:16 PM	#9
Stormin2u I wanna be Dave Join Date: May 2007 Location: Taylors Falls just hanging with the MNRCRC crew. Posts: 7,843	I ran out runners prior to getting a Novak Goat and the Goat is the only brushless I will run it's smooth and controllable. Out runners usually cog a little at start up and never supply smooth control at any point in the power curve IMO. I would pick any brushed motor or the Goat for their smooth control before any out runner on the market today. My Goat runs 45 mins. on a 1500 6 cell 7.4 NiMH pack.

08-14-2008, 09:13 PM	#10
breitenbach14 Quarry Creeper Join Date: Jan 2008 Location: fair oaks nor-cal Posts: 340	ive had my 55t motor since last year on January and haven't changed the brushes or cleaned it so that doesn't seem like a lot of maintenance to me

08-14-2008, 09:25 PM	#11
frdtrkguy I wanna be Dave Join Date: Feb 2007 Location: BFE, NV Posts: 2,324	Brushed motors got a bad rap for high maint. in the racing circles where it isnt uncommon to cut the comm and replace brushed ever couple of runs. In crawling the amp draw is so low that a 55t lathe will last damn near forever.

08-14-2008, 09:49 PM	#12
Prostreet Quarry Creeper Join Date: Jul 2008 Location: Saskatoon in summer, Las Vegas in winter. Posts: 230	I was also thinking the price of the brushed would allow you to buy 2 or 3 for the price of 1 brushless. I will try my RTR Axial with the stock motor for a while, once it is back in stock. But I have been spoiled with my brushless Stampede and Rustler.

08-14-2008, 10:17 PM	#13
Nick77 Newbie Join Date: Sep 2005 Location: frankfort Posts: 14	i am currently workin on my brushless set up,but my brushed motor just wasn't enough after a while.plus i ran mine a ton so it was gettting some wear on it.im gunna be running the bm 16 brushless from the crawler store,what do you guys think about that motor?

Sponsored Links

08-15-2008, 09:29 AM	#14
NovakTwo Quarry Creeper Join Date: Mar 2006 Location: SoCal Posts: 407	When you wear out you brush motor, you throw it in the trash. When you wear out your Novak BL motor, you swap it for a replacement motor for @35.00 (w/new 120 warranty): Novak Motor Replacement Program

08-16-2008, 02:18 PM	#15
Nick77 Newbie Join Date: Sep 2005 Location: frankfort Posts: 14	i would do that if i had novak brushless,but i don't. and that brushed novak is sick ass hell now.waitin on my esc to come back for cc so i can put it all together

08-19-2008, 12:09 PM	#16
str8axle Newbie Join Date: Aug 2006 Location: Santa Cruz Posts: 41	One other thing that I experienced with brushless was wierd anoying noises. I had a crawlmaster and mamba max and I could not stand the sounds the esc made when first plugging it in, and then when you drive it had a strange whine to it that was distracting to say the least. When I switched to a brushed motor it was almost silent both driving and powering up! It crawls way better IMO with the brushed. For sale Crawlmaster brushless motor used once, like new. Best offer.

08-20-2008, 05:25 AM	#17
CharliesTheMan Quarry Creeper Join Date: Apr 2008 Location: Alexandria Posts: 207	I used to say that I would have nothing but brushless and LiPo, because I started out with other types of RC cars and trusck before I got into crawling. When I got into crawling, I bought a Novak goat before I even got my axial. I ended up with two goats and liked them pretty good. But then I got a chanve to run a high end brushed crawler motor. After I ran my mamba/Holmes Hobbies cobalt setup, I had sold both goat systems within a week. I now have two Holmes Hobbies 7 turn cobalt motors, and two holmes hobbies 35 turn handwound 540 motors. The main reason that I went from the brushless to the Holmes Hobbies motors is because they are so much smoother on low end throttle response, partly because you can run a 3 cell lipo, and volt up and gear down, which provides a much smooher start up and throttle response. The Novak Goat is supposed to be limited to 2S LiPo, although it's quite strong on 2S. I HIGHLY reccomend Holmes Hobbies brushed motors. John Robert Holmes has some of the best service in the industry, and IMO the best motors on the market, period.

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