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Razor dune buggy upgrade

Hi there, My oldest son is getting close to 100 lbs. We live on the side of a hill and the stock go cart has a little trouble getting up. I would like help selecting upgrade parts to bring this thing up to grade. 36V sounds about right. Everything works but batteries are not new. Some speed improvement would not be refused. They sometimes take it off road. Would larger wheels help with that? I am skilled in woodworking but have never mastered welding. If I could get away with some drilling, bolts, a bit of wiring, that would be about the right skill level for me. Thanks!
When a larger and more powerful motor is installed on the Razor Dune Buggy the jackshaft can continue to be used for a slight increase in top speed and a major increase in torque and hill climbing ability, or the jackshaft can be removed and the motor can drive the axle directly for a large increase in speed. If the jackshaft is removed and a 500 Watt motor installed then the top speed will be around doubled and the hill climbing ability will be around the same. However if a 1000 Watt motor is installed then the top speed will be around doubled and the hill climbing ability will be twice as good as with the original motor.

Using the Original Jackshaft:
  • With 500 Watt motor = same speed and 2 times the hill climbing power
  • With 1000 Watt motor = 20% increase in speed and 4 times the hill climbing power.
Deleting the Original Jackshaft (chain goes directly from motor to axle):
  • With 500 Watt motor = 2 times increase in speed and same hill climbing power.
  • With 1000 Watt motor = 2.2 times increase in speed and 2 times the hill climbing power.

Larger wheels would change the gear ratio and provide a faster top speed however the Razor Dune Buggy has wheels that were made specifically for it and are unique to it, so finding anything other than original wheels for it may prove to be difficult.

Most Razor Dune Buggy modifications do not require welding and metal fabrication, and are done with more common tools such as a drill, hacksaw, etc. Trays to mount the batteries can be made out of Zinc-Plated Steel Slotted Angle or Plywood.



In the photo above the motor is mounted to the frame with two 1/4" threaded rods that are bent into a U-shape. This is because if the same motor with mounting base was used it would be too tall to fit into the frame. We recommend placing 1/4" ID clear flexible nylon tubing over the threaded rod where it contacts the motor so the motor's paint does not get scratched and also to provide a better grip onto the motor.

Here are four modification upgrade kits that we currently have for the Razor Dune Buggy:

24 Volt 500 Watt: https://cart.electricscooterparts.com/ProductDetails.asp?ProductCode=KIT-24300

24 Volt 500 Watt with Reverse: https://cart.electricscooterparts.com/ProductDetails.asp?ProductCode=KIT-24301

36 Volt 1000 Watt: https://cart.electricscooterparts.com/ProductDetails.asp?ProductCode=KIT-36300

36 Volt 1000 Watt with Reverse: https://cart.electricscooterparts.com/ProductDetails.asp?ProductCode=KIT-36301

All of these kits can be customized with different throttles, switches, batteries, chargers, or other parts. If you like one of these kits however would prefer it to have a different part then please let us know and we will make a custom kit tailored specifically for your project.

Please let us know if you have any questions.

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