Quote:
Originally Posted by e-rev project
just curious if this seems to check out for what i have
3.3 revo conversion
RCM motor mount
medusa 36-60-2000kv motor
5s1p zippy-h 5000mah batt
talon tires 5.75"
Differential Ratio: 2.8461538461538463
Transmission Ratio: 2.111111111111111
Other Ratio: 1
Spur Tooth Count: 38
Pinion Tooth Count: 18
Total Voltage: 18.5
Motor KV: 2000
Tire Diameter (inches): 5.75
Tire Ballooning (inches): .4
Motor Current Draw: 0
Motor coil Ω: 0.006
Spur/Pinion Ratio: 2.11 : 1
Total Ratio: 12.68471 : 1
Tire Circumference (inches): 20.58 inches (522.67 mm)
Total Motor Speed: 37000 RPM
Vehicle Speed: 56.84 mph (91.3 km/h)
Estimated Adjusted Speed: 52 mph (84 km/h) - 8% loss
Effective KV Value: 2000
KT constant: 0.68 oz-in/A
does all this info look correct i remember looking at an 18 tooth pinion before and only getting 40-45mph which seems to be the best target speed and now i get 50-55 which is prob over geared correct?
peace
j
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I have a similar setup in my conversion the same pinion/spur but I have the wide ratio gears in the tranny first gear removed. and locked in 2nd gear, FOC...you will soon see the Talon tires suck I now go between Crimefighter LPR and Badlands on Maximizer Beadlocks...it all depends on what I am doing...and my setup is good for mid 50s @ WOT... the rest of my setup is in my sig
the Medusa 60 can might get hot in a Revo though ...