Harold Bawlzangya Racing

New forward gear ratio with the 6:1 gears installed

The math said the new forward gear ratio would be close to 9:1.  Now that the 6:1 gears are installed, I wanted to see what the new forward gear ratio really is going to be.

I started with the keyway of the input shaft in this position:

highspeedgearinstallday2-36

And made an alignment mark on the differential gear and case:

highspeedgearinstallday2-37

I rotated the input shaft counter-clockwise and and stopped when my alignment marks met back up.  I was just shy of completing 9 rotations on the input shaft.  So the actual ratio is just a little over 9:1.  That should work out perfect for what I’m building.

highspeedgearinstallday2-38

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