Selecting outrunner for crt .5

Originally Posted by Metallover

I am currently running the 3.5" tires. Do you really think this will run too hot on 3s?

Yeah for 3.5 I guess you would be fine. Thats around 37mph. I dont know how far you can push a out runner yet. So I cant say what will and wont work and be 150% positive about it. But from what I have learned, they really work better with a lower KV, and higher voltage, less cogging, less heat and all

Originally Posted by BL_RV0

Ok, shoot me a pm when you figure it out.

Will do!

Thanks

[Metallover]

I think this is a good comprimise 1100kv, 48mm long- http://www.hobbycity.com/hobbycity/s..._35-48_1100Kv_

It is less KV and longer. It might handle the bigger tires too.

How long is the 770kv motor on the previous page?

Motor Dimensions: 37.4mm x 48mm

Same size?

3.25
Transmission Ratio: 1
Other Ratio: 1
Spur Tooth Count: 1
Pinion Tooth Count: 1
Total Voltage: 11.1
Motor KV: 1100
Tire Diameter (inches): 3.5
Tire Ballooning (inches): 0
Tire Circumference (inches): 11 inches (279.29 mm)
Total Motor Speed: 12210 RPM
Vehicle Speed: 39.12 mph (62.84 km/h)
Estimated Adjusted Speed: 37 mph (60 km/h) - 5% loss


Or at 1000, its 35.6 mph

Id say either will work. But so far there have been a few conversions with the KD out runner, so thats why we ordered the KD because we know it works. Never used that other motor. So you can choose there

[rcgrinch]

i am also liking the outrunner for my .5
what drive cups are you guys useing??
i am planning on useing the 1000kv that was posted earlyer in this thread.
any help would be great!! thanx guys.

[Metallover]

I've got an updated pic. I ended up getting the 1100kv motor. I still need a 3s lipo, a battery tray and a front drive shaft. I also need to do little things like move the motor a little to the middle and get the radio box/antenna mounted.

I tried it out on 8s nimh and it had tons or torque and I got decent speed. I think it's great because I picked the outruner to run on 3-4s lipo.