There is another fun sport with small engines

Lawnmower racing is less on construction and more on the fun stuff.
Check out this video http://www.youtube.com/watch?v=5zjMf8JgF6k
then there's this onehttp://www.youtube.com/watch?v=xl0CB6v4QzY

What to make

I saw these on the web and thought it to be an interesting subject.



Then there is this.

Air screw cars

Propellor driven vehicles are a preposition but the draw back is the spinning propeller. I had a push bike with a 12x10 propeller and it could reach 60k/h with a 50cc engine. mine was a pusher propeller.

drive system

Wheels

Another day and the wheels are made.
The jig below is made from flooring and carefully marked out.

 Surprise surprise the wheels are not all the same diameter and are from the same make and model and from the biggest to the smallest is a difference of 5mm in diameter.

More to come so keep watching.

Where do you get the right wheels from

I have been looking for the right wheels and found the space saver wheels the right tyre shape and diameter. I cut the centres out and then set about making a jig for the new wheel centres and came up with the wheel in the photo below. Three to go..

Poster