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Old May 30, 2012, 03:07 PM
Aj Creations
Anjan Babu's Avatar
India, KA, Bangalore
Joined Dec 2011
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Help!
Can this motor be used in a car?

I can't seem to find any proper car motors where I live, but there are plenty of airplane motors. I found this brushless motor in my local hobby store, the guy wasn't sure if it can be put in a car. He told me it can be used in boats and airplanes.
Is it appropriate for cars?

Specification:
KV(rpm/v) 4300
Power(W) 280
Wire Winds 10
Resistance(mO) 130
Idle Current(A) 0.7
ESC(A) 18amp
Cells Ni-Cd/Ni-MH 6-12
Cells Li-Po 2-4

Dimensions:
Shaft diameter 2.3mm
Shaft length 32mm
Motor diameter 20mm
Total length 46mm
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Old May 30, 2012, 04:06 PM
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Canada, AB, Edmonton
Joined May 2008
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Depends on the size of the car. That motor might work in a 1/16 but most 1/10 car motors have a 3.17mm (1/8") shaft diameter so the pinions are all sized for that. 1/10 motors are generally around 35mm diameter.

Brushless motors generally don't care what type of vehicle they're used in, you just need to match up the size, kv rating and amp rating (to the esc).

Why not just order something online?
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Old May 30, 2012, 09:16 PM
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That's only good for 1/16th or 1/18th scale cars.
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Old May 30, 2012, 11:07 PM
Aj Creations
Anjan Babu's Avatar
India, KA, Bangalore
Joined Dec 2011
120 Posts
Quote:
Originally Posted by Druss View Post
Depends on the size of the car. That motor might work in a 1/16 but most 1/10 car motors have a 3.17mm (1/8") shaft diameter so the pinions are all sized for that. 1/10 motors are generally around 35mm diameter.

Brushless motors generally don't care what type of vehicle they're used in, you just need to match up the size, kv rating and amp rating (to the esc).

Why not just order something online?
I don't have a credit card to buy online.
And I noticed that the airplane motors are way cheaper than cars', so I was wondering if I can use a brushless motor made for airplanes in cars. I'm okay with using an airplane ESC too, I can live without reverse.
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Old May 30, 2012, 11:15 PM
Aj Creations
Anjan Babu's Avatar
India, KA, Bangalore
Joined Dec 2011
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Quote:
Originally Posted by wparsons View Post
That's only good for 1/16th or 1/18th scale cars.
I'm not putting it in any RTRs or kit cars. I build my own cars
I was stuck with brushed motors and Ni-MH systems for all these days, so I'm planning on upgrading to brushless motos and Li-Po systems.
I'm not really sure how big a 1/16 scale car is, google images didn't help either. Can you give me the average dimensions of one? my car is about 8 inches long and 4 inches wide.
Also, can you tell me approximately how much my car should weigh to hit 20-25kmph on a 3S pack with this above mentioned motor?
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Old May 31, 2012, 07:28 AM
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That motor is a 2040 motor, normally 1/10th scale cars use 3650 motors (36mm diameter, 50mm long).

8" x 4" is much smaller, probably more like 1/18th scale. 3s on 4300kv is way too much RPM for 20-25km/h unless you're running tiny tires, or gearing it way down. As for weight, something that small shouldn't weigh much at all, probably about a pound at most?
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Old May 31, 2012, 10:45 AM
Aj Creations
Anjan Babu's Avatar
India, KA, Bangalore
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Quote:
Originally Posted by wparsons View Post
That motor is a 2040 motor, normally 1/10th scale cars use 3650 motors (36mm diameter, 50mm long).

8" x 4" is much smaller, probably more like 1/18th scale. 3s on 4300kv is way too much RPM for 20-25km/h unless you're running tiny tires, or gearing it way down. As for weight, something that small shouldn't weigh much at all, probably about a pound at most?
You mean, it's gonna go faster? Well, I want it fast.
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Old May 31, 2012, 10:55 AM
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4300kv on 3s might be too much RPM for the bearings, depending how good they are. You're looking at almost 55000 rpm unloaded.
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Old May 31, 2012, 11:20 AM
Aj Creations
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India, KA, Bangalore
Joined Dec 2011
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I think that's a 2030 motor.
You mean the bearings in the motor? The ball bearings in my car are from an old computer hard drive, they seem pretty durable. And since the bearings won't be handling 55000 rpm when in the car, it should be ok. (I think)
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Old May 31, 2012, 12:40 PM
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I mean the bearings in the motor. They might be ok at that RPM, but some are only good up to about 35k rpm.
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Old Jun 08, 2012, 03:59 AM View Post
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Old Jun 08, 2012, 02:39 PM
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above post is spam...
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Old Jun 08, 2012, 04:28 PM
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I already reported a bunch of their posts as spam this morning, hopefully it stops.
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