Quote:
Originally Posted by Jahay
THanks for the responses... i see what you are saying now.
I used the speed calc, and these are my results.
Differential Ratio: 3.3076923076923075
Transmission Ratio: 2.215277777777778
Other Ratio: 1
Spur Tooth Count: 44
Pinion Tooth Count: 25
Total Voltage: 22.2
Motor KV: 1800
Tire Diameter (inches): 5.91
Tire Ballooning (inches): 0.5
Motor Current Draw: 0
Motor Coil Resistance: 0
Spur/Pinion Ratio: 1.76 : 1
Total Ratio: 12.89632 : 1
Tire Circumference (inches): 21.71 inches (551.39 mm)
Rollout: 1.68:1
Total Motor Speed: 39960 RPM
Vehicle Speed: 63.7 mph (102.32 km/h)
Effective KV Value: 1800
KT constant: 0.75 oz-in/A
As you can see on a 6s running 44/25 and accounting for tire ballooning at 0.5" i can hit 63mph supposedly... This setup doesnt include the 39t Idler which would probably give me up to 10mph more. Does this sound correct?
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looks right, i can tell you this, if you want to be doing of 60mph you need to find a lighter vehicle, it puts alot of strain on your truck always being geared for 60+
if i were you i would gear it for around 45, thats still very fast for off road and when you get the speed bug then drop in the big pinion and let it rip onroad