Power Racing Series

Modified on Sun, 13 Jan 2013 05:55 PM by Administrator — Categorized as: Uncategorized

Youtube video on taking transaxle apartWe are attempting to enter the Power Racing Series exhibition race at World Maker Faire, September 29th and 30th. 

Official Team Members:

  1. Matt
  2. Harsh
  3. Bill

Several others have been helping out, including Brian, Rick, and Don -- Thank you!

Project Goals:

  1. Complete the race without breaking
  2. Maintain a "sleeper" appearance, staying true to the style, layout, and geometry of the stock unit
  3. Not be embarrassingly slow
  4. Surprising off-road capability
  5. Have a fun, reasonably safe toy at the end

Major Components:

  1. Structure - currently box steel, 1" and 3/4"
  2. Wheels / Tires - currently Harbor Freight DH 13" units: http://www.harborfreight.com/material-handling/pneumatic-tires/13-inch-x-5-inch-heavy-duty-pneumatic-tire-37767.html
  3. Motor(s) - currently CIM motors from andymark.com 12v overvolted to 24v, possible 36v unit from Don
  4. Steering - high rise handle bars
  5. Front Spindles - modified stock units, include basic ackerman
  6. Rear Alxes - either fabricated or old transaxle
  7. Seating - no ideas yet
  8. Power Transmission - Considering old riding mower transaxle
  9. Batteries - currently old UPS batteries (12v, 9ah) they all seem to be this model: http://www.apexbattery.com/vision-cp1290-battery-sealed-lead-acid-batteries-vision-batteries.html
  10. Motor Control - building homebrew, possible commercial unit(s) from Don
  11. Throttle / Brake interface - off the shelf scooter throttles, not sure about brakes!
  12. Moxie - thinking rolling subwoofer with remote dj capability

Transaxle Notes

Obtained an old 5 speed + reverse transaxle from a Craftsman 10HP riding mower. Apparently this transaxle is very common... ours has the name "Foote" on it.

Transaxle Diagram

Video on disassembling transaxle

Motor Control Notes

Mosfets:


The Craigslist AdThe Craigslist Ad

Stock Unit

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Battery Testing

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