Here our some speed secrets and tips-
There our a few ways to mount the axle rods or bolds.
Here our two ways that I use and have used.
This 1st one, was what I used for the 1st couple of years, it still works better than between the wood or in the wood.
prevents bending and major alignment issues.
This what I had made for a better alignement of axle rods or bolts.
Ruber used between the brake and frame and bolt, prevent that brake from falling down and dragging. a spring works also to help hold it up. Especially if they fall when coming down off a ramp.
Wood is soft and after a few runs, the front steering loosens up. It is the #1 reason kids have a hard time with wiggle.
brass bushings placed in the whole (top & bottom of the board, prevent compression and the bolt loosening up so easy on race runs.
Again, the center steering bolt, I have seen 97% of the time, the reason why a child is having wiggle issues. the tighter the better !!
Remember it's a strait run !
notice the distance on the steering limit blocks. You do not steer much and very little is needed.
in this next diagram, taken right from the basic cubmobile diagram. Most people seem to not do this when putting together the front steering.
You need to remove all that grease from both sides of the bearing on each wheel !! spin and spin and spin them !!
Wd-40 or lighter fluid really works well for this process.
I am using this picture to show something else-
Notice the washer next to the wheel. most have them too tight. you should still be able to spin the washers on both sides of the wheels after the wheel is installed. if not, it's too tight !!
Due to the racer, little wiggles and slight steering adjustment, you want some play here and also due to low quality stock bearings. Pressure on the bearings inner race. Really seems to slow the car down.
More to come-