CANTED GUIDE ROLLS
It is suggested you mount the guides to the rear of and as near to the axles as possible to
maintain maximum clearance over humps, hollows or mismatch in the track. It is
disasterous if rollers are mounted too high and become disengaged from the guide
allowing the car to run off the track out of control.
As for spacing between guide rollers, 45 mm clear between the rollers is a good starting
point. Too close and the rollers are in contact with the guide channel for a longer time, in
the extreme all the time. A guide roller touching the guide wastes energy. This distance
between guides improves the chances of your car landing back down with the guides still
over the guide channel after it has taken off when cresting the hill at high speed.
The photograph below taken at the 2009 Victorian event by Mr. Witney is proof of take
off.