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a question about bk
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Semi Pro
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Join Date: Aug 2008
Location: Twin Citys Mn
a question about bk - 08.15.2008, 09:18 AM

so i bought a savage today from a moderator at ultimate as a spair truck for my freinds to run at the track. it has a Feigao 9XL and BK Warrior 9920.

i was planning on useing a 5s pack, how well do you think the set up should run?

i dont know a thing about the bk esc, is it ok?

will this gearing cause to much stress


Differential Ratio: 3.3076923076923075
Transmission Ratio: 1.640953716690042 second gear
Other Ratio: 1
Spur Tooth Count: 47
Pinion Tooth Count: 15
Total Voltage: 18.5
Motor KV: 1853
Tire Diameter (inches): 5.65 maxx crimefighters
Tire Ballooning (inches): .2 is that right?
Motor Current Draw: 0
Motor coil Ω: 0.0092
Spur/Pinion Ratio: 3.13 : 1
Total Ratio: 17.00701 : 1
Tire Circumference (inches): 19.01 inches (482.77 mm)
Total Motor Speed: 34280.5 RPM sounds like a good rpm for a fergo
Vehicle Speed: 36.28 mph (58.28 km/h)
Estimated Adjusted Speed: 35 mph (56 km/h) - 5% loss perfect speed for out track
Effective KV Value: 1853
KT constant: 0.73 oz-in/A


i hit about 35 mph at out track ( tekno/revo) so i was planning on gearing the savage for similar speeds

here is some pics of it, looks like a good truck to me, i will change the battery mounts and clean up the wireing alittle




let me know what you guys think
   
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