914 Chassis Stiffness, want input on chassis stiffness measurements Options

[Curbandgutter]

I want to check the stiffness of the 914 chassis two ways: the flexural stiffness (as in measure the shock tower movement as you lift it from the middle), and the torsional stiffness ( measuring the shock tower movement as you lift three wheels).

Then I want to input a 914 chassis into a 3d structural software that I use. I will design a tube chassis and check the flexural and torsional stifness with different tubing and thickness layouts.

Then construct the tube chassis and compare the real world results.

I want input from others as to how they would go about doing this. Or maybe give me some pointers. Or maybe someone already knows the factory stiffness?

What do you think?

[Curbandgutter]

Hey guys thanks for the input. Man I would love to see that shaker table analysis. If you guys can find it and post it, that would be fantastic.

Hey Cracker, I'm laughing as I say it....but that is your handle, thanks for your input. I was debating on whether or not to tie in the windshield and had decided against it but now I will go back to it. You gave me a great idea in how to solve a problem I was having trying to get a load path to travel where I wanted it to. You just gave me a supper idea. When I incorporate it I will definitely give you a shout out. You'll see it and laugh. And yes, I will tie the rear struts.......but also the fronts.

As far as doing a long stiffening by adding material either on the inside or outside, I not doing either. However, if someone wants me to wist their car on my table we can do that and see what the results are. Then we will know how effective they are. I suspect that they are pretty good. The longs really need the reinforcement. As you can see from the results of the twist test.