Tag Archives: Four speed gearbox

The Genesis of SGB4 – the four speed revolution!

by Roger Moss

I thought I’d share this. There are lots of casting videos on you tube but I really like the work that ‘Myfordboy’ does, as he shows the entire process through pattern making, core layout, casting, machining and the final object (normally a model engine of some kind) working. Absolutely brilliant.

Casting video
December 12, 2015 Supersquirrel Leave a comment
Andy from Performance Engineering uploaded this video of the dyno test last Wednesday. I think it sounds great!

1932 Flying Squirrel racer dyno test video
April 28, 2015 Supersquirrel Leave a comment