Quote:
Originally Posted by rory_a
I've considered picking up a wrecked Hyabusa, solid axle quad rear end, and building a chassis to hold it all with double a-arm front suspension. Not sure what off-the-shelf parts would be out there for brakes though.
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I've been working up a similar formula car idea in CAD lately just as a design exercise. I have it mocked up with a Hayabusa engine currently. I attached the page on it from my engineering portfolio; it's changed somewhat since these screencaps but the concept is there. Current weight without ballast is ~700lbs, ~40% front bias. There are more components to get in the model though and I still need to run all kinds of FEA to optimize things. As it sits now it would be classed as an A-Mod car for auto-x. Not sure about road racing.
Packaging everything is the hardest part, especially at the wheel/upright. If you're trying to use existing parts such as wheel bearings & brake rotors/hats/calipers, it's difficult to fit everything together while maintaining the geometry and dynamic response you want from the suspension.
There are lots of brake vendors out there to use; Wilwood and AP Racing are the catalogs I've been looking at. I have no idea why you would want to use a stick axle, though. Just a bad idea all around.