t tiger eb4 s2 conversion
 

this is my first attempt at a conversion note that is by no way complete yet
need to make battery tray to suit zippy r lipo , clean up wiring and front/ rear braces and put on side plastic

i just could not wait for mikes mount to come out for the eb4 so i did as every else does and made one myself
so just slapped in the electrics to have a go and see how she went
she is noisy with the steel spur gear i think ill try a plastic one the noise is irritating
minor problems are pinion comes off now and again yes it has a flat on the shaft

front wheels spin a bit more than id like seems a lot of the power is going up front as there is little weight there maybe try different diff fluids
any help is appreciated

some info of what im running

thanks brian for your calc
Differential Ratio: 3.3076923076923075
Transmission Ratio: 1
Other Ratio: 1
Spur Tooth Count: 46
Pinion Tooth Count: 15
Total Voltage: 14.8
Motor KV: 1900
Tire Diameter (inches): 4.1
Tire Ballooning (inches): .10
Motor Current Draw: 75
Motor coil Ω: .0091
Spur/Pinion Ratio: 3.07 : 1
Total Ratio: 10.14359 : 1
Tire Circumference (inches): 13.51 inches (343.12 mm)
Total Motor Speed: 26823.25 RPM
Vehicle Speed: 33.83 mph (54.34 km/h)
Estimated Adjusted Speed: 32 mph (52 km/h) - 4% loss
Effective KV Value: 1812.38
KT constant: 0.71 oz-in/A
Motor Torque: 0.28 ft-lbs
Final Torque: 2.82 ft-lbs
Final Power: 1110 watts (1.5 HP)


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Buggy looks great so far! Nice job! :great: Are you putting locktite on the grub screw of the pinion gear? If not, then that is your problem. Just put a little on the thread of the grub screw, and the problem of the pinion coming off should go away. Just make sure its blue locktite, and NOT red. :wink:

thats a shame as i have the red loctite and not the blue
thanks