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12 t - 27t brushed motor

Old 04-04-2008, 09:46 PM
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rideon20z
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Default 12 t - 27t brushed motor

what are the differences between the wide range of motor sizes between 12 and 27 brushed ? is the higher number better ? i have a 13 t modified that runs like a ra*ed ape ? so what is good ?? also what size pinnion gear are people running ?
Old 04-04-2008, 10:21 PM
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drevil
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Default RE: 12 t - 27t brushed motor

Higher number = more torque, more run time, less rpm
Lower number = less torque, less run time, more rpm

For the most part the lower the turns the faster the car. Gearing is completely dependent on what motor your running and track size.
Old 04-05-2008, 06:16 AM
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savtraxx
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Default RE: 12 t - 27t brushed motor

ha h aa raped ape *rolls around laughing* dude this is like one of thw most simplest things of rc!!! oh well yeah lower the turn more power the lowest is 3.5 turn *i think* it absoloutely howls!!!
Old 04-05-2008, 07:56 AM
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Default RE: 12 t - 27t brushed motor

ok thanks guys so i guess i got lucky with the 13 turn if i wna to blow someones doors off !!
Old 04-05-2008, 10:09 AM
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drevil
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Default RE: 12 t - 27t brushed motor

ORIGINAL: savtraxx
ha h aa raped ape *rolls around laughing* dude this is like one of thw most simplest things of rc!!!
Everyone has to start somewhere. I'm sure when you started in this hobby you didn't instinctively know what those numbers meant.
Old 04-05-2008, 11:53 AM
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125cchyperman
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Default RE: 12 t - 27t brushed motor


ORIGINAL: savtraxx

ha h aa raped ape *rolls around laughing* dude this is like one of thw most simplest things of rc!!! oh well yeah lower the turn more power the lowest is 3.5 turn *i think* it absoloutely howls!!!
No you can go lower, I believe Nick Case used a 1 turn motor to get the Rc Speed Record in his car. Not a brushless like everyone thinks. Nd yeah everyone does have to start somewhere.
Old 04-05-2008, 04:47 PM
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Default RE: 12 t - 27t brushed motor

if you want speed.. go lower (check your esc for compatability) also, for heat, load, longer life.. run the correct pinion for the car (should have a chart)

You can also get more speed by gearing the car. This shouldn't be done with lower than a 12t (brushed). Check your gearing options and move up a tooth each run and keep checking for heat!

I have a ton of motors and I gear my 10t, 3500 - 4500kv motors through the roof and my 3t - 9200kv motors I run the smallest pinion.

Your 13t is a great place to start. You can also add some cells (check your esc to make sure you are within its capability). If you are looking to go fast I would run an extra cell (7 cells nimh), go up a tooth in pinion and start there. Be sure to keep checking for heat on the motor, battery, and ESC...

you should be flying
Old 04-05-2008, 06:36 PM
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Default RE: 12 t - 27t brushed motor

my fastest electric was a coustom pan car (just a carbon plate, aluminum front end, and bolink rear-end, 9inches long) geared 72-31 with a coustom motor (hand wound 9 turn trinity, 4mag can, V style brushes, firm springs) a genaric no limit esc. and equiped with a calabrated spedometer from venom it turned out a impressive top speed of 75mph. it just went! in two seconds it was gone and at 4seconds it hit top speed. but on the second run it flew over a sewer cap (off the under the ground 1/4 inch) and it whent air born at top speed, it flipped and cartwheeled 4houses down, things being spit off in every direction.

all that was left on the chassis was the front axl with one wheel, it took me a half hour to find everything.

it was cool while it lasted! (my 6hours of work wasted)

my favorite turn is 14 or 12 it gives you a nice solid power curve and nice top speed and efficency
Old 04-05-2008, 07:14 PM
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savtraxx
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Default RE: 12 t - 27t brushed motor

a 13 turn would go pretty mad!
Old 04-05-2008, 09:12 PM
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Default RE: 12 t - 27t brushed motor


ORIGINAL: Shupid_one

my fastest electric was a coustom pan car (just a carbon plate, aluminum front end, and bolink rear-end, 9inches long) geared 72-31 with a coustom motor (hand wound 9 turn trinity, 4mag can, V style brushes, firm springs) a genaric no limit esc. and equiped with a calabrated spedometer from venom it turned out a impressive top speed of 75mph. it just went! in two seconds it was gone and at 4seconds it hit top speed. but on the second run it flew over a sewer cap (off the under the ground 1/4 inch) and it whent air born at top speed, it flipped and cartwheeled 4houses down, things being spit off in every direction.

all that was left on the chassis was the front axl with one wheel, it took me a half hour to find everything.

it was cool while it lasted! (my 6hours of work wasted)

my favorite turn is 14 or 12 it gives you a nice solid power curve and nice top speed and efficency
Pancars are the fastest and I wish more people were running them. I run the high-speed events with my fabricated for top end associated 10l3 touring. Currently with a 6pole BL, 5s lipo MGM esc... I love this thing! Not all that fun to drive but, great fun for bragging rights! When I bought the car I hit a clocked 74mph with a 10t D4 brushed motor, 12 1400mah cells on a tekin speedstar esc, gearing 20/76. I Love these cars!
Old 10-02-2023, 07:00 PM
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Daveovington
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Default What size esc do I need

Originally Posted by drevil
Higher number = more torque, more run time, less rpm
Lower number = less torque, less run time, more rpm

For the most part the lower the turns the faster the car. Gearing is completely dependent on what motor your running and track size.
So I bought a 12t brushed motor and threw it in my truck with a 3s axial esc and 3s battery amd it screamed for about 2 minutes and then it was a smoke show in my esc. How many Amos should my esc be to accommodate a3s battery amd 12t motor ? I can't find a formula anywhere and the closest thing I could find would suggest a 400amp brushed esc which seems excessive to me but I'm fairly new so who knows ?! Lol ty in advance
Old 10-04-2023, 02:43 AM
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Well, consider the capability of the pack to discharge. A 3,000MaH 10C pack can discharge 30A in a burst. A 20C pack 60A. So figure out what the pack can discharge, then go above that. There’s more to the equation than just that, but if never hurts to have an extra beefy ESC. If I was hardcore into electrics, I wouldn’t bat an eye at spending a chunk of cash on a good ESC with a big Amp handling capability. Lithium batteries changed the game for sure, and their huge energy density, and capability to discharge it quickly creates the need for the rest of the system to be pretty beefy. Also ensure the wiring going TO the ESC to be beefy and use high amp connectors like Deans HV or XT60.

Just my 2. YMMV.
Old 10-04-2023, 03:04 AM
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Well I guess that would explain it then lol. I tried it with a 6000mah 3s 80c so with those calculations that would put it at 480A for the battery discharge and then I'm not sure what the 12t motor can draw but I'm guessing it's more than the esc could take obviously. Lol. I did just order a 1060 but I think I'll try it with my 3500mah 50c first at 175A might have a fighting chance . 😅 ty for the info , very much apteciated

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