Quote:
Originally Posted by Rob. Smith
That Chassis looks really light weight. What is the stiffness ? My Chassis is really heavy duty and still has flex. (RMC) aust.
Smithy
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I've been looking at the pics of the FFR chassis and I reckon they would be pretty good. They would have a good chance of passing our torsion and beaming tests out of the box.
They have a couple of tricks that would improve the chassis rigidity. They have a backbone structure which is sheeted in aluminium to act as the trans tunnel. Riveted sheet aluminium actually provides quite a bit of stiffness as the sheet acts as a shear plate. Combine that with the sheeting on the footboxes and floor and you have a bretty strong structure. F1 and Indy cars used to be built from folded sheet that was rivited together and very little tubular structure.
That crossed tube section under the doors will stiffen things up as well as providing a bit more side impact protection.
Cheers