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help me pic an outrunner for my max project
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Semi Pro
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help me pic an outrunner for my max project - 11.02.2008, 08:25 AM

so i need some advise on a project truck im working on. im planning a center mounted out runner on a t-maxx chassis but im getting hung up on how big of a motor i need.

the goal is a lightweight MT that runs on 3 cell at the track and can top speed and bash on 4 or 5 cell

so the lighter the motor the better

there is room for a motor that is 44x80mm with a 5mm shaft

so i found this
http://www.hobbycity.com/hobbycity/s...less_Outrunner

is this the right way to calculate direct drive?

Differential Ratio: 2.8461538461538462 t-maxx diff
Transmission Ratio: 1
Other Ratio: 1
Spur Tooth Count: 1
Pinion Tooth Count: 1
Total Voltage: 11.1
Motor KV: 500
Tire Diameter (inches): 5.9
Tire Ballooning (inches): 0.1
Spur/Pinion Ratio: 1 : 1
Total Ratio: 2.84615 : 1
Tire Circumference (inches): 19.16 inches (486.76 mm)
Total Motor Speed: 5550 RPM
Vehicle Speed: 35.39 mph (56.84 km/h)
Estimated Adjusted Speed: 34 mph (54 km/h) - 5% loss
Effective KV Value: 500
KT constant: 2.7 oz-in/A


or will this be enuff? or will it over heat?
http://www.hobbycity.com/hobbycity/s...s_35-48_900Kv_

if you know of a better outrunner for this project please post me a link

and any other advise is welcome

thanks for the help


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......maybe they want to be more like novak
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I'm telling Patrick you said that!

Last edited by Semi Pro; 11.02.2008 at 08:27 AM.
   
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brushlessboy16
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11.02.2008, 09:13 AM

Turnigy 50-55B 600kv.

Had one in my raze- very nice motor and cheap too


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Semi Pro
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11.02.2008, 09:46 AM

Quote:
Originally Posted by brushlessboy16 View Post
Turnigy 50-55B 600kv.

Had one in my raze- very nice motor and cheap too
its to big, there is only room for a 45mm between the frame rails


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......maybe they want to be more like novak
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I'm telling Patrick you said that!
   
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brushlessboy16
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11.02.2008, 10:00 AM

Yikes, i would say get an Axi then, way more power in a smaller package.. i dont think a turnigy 35-xx will cut it.


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