Quote:
Originally Posted by itstock
I guess I understand your overall message, but comparing the torsional rigidity between the backdraft frame and that frame is completely irrelevant and meaningless. You have a jack, you couldn't do this with your example, but the backdraft does well.
This is the front right corner jacked up, which jacks the right rear corner frame 2", and drops the front left frame 2" lower then the front right, basically using the left rear and front right as perfect pivot points with zero flex. This is not scientific by any means. The frame is certainly quite rigid and nowhere near your example
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Actually it is relevant. Who uses rail chassis anymore?
The point is not saying the MC chassis is JUST like a BD, but the principle is the same. The BD has quite a bit shorter of a WB, plus you have a plastic body bolted on to help to help. These examples also have no G-Force loads which will enhance any twist further.