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Thread: Spaceframed SR20DET RWD Nova

  1. #1151
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    I'll take the little room at the back, that way the PA can be in the main shed to send people through.

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    Hope you dont mind grinding dust, because you will be covered in it.

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    Senior User The Simps's Avatar
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    ...and all the spiders...

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    Senior User The Simps's Avatar
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    ...and we occasionally have rats to visit but it shouldnt be a problem as we'll have you working day & night so you can "shoo" them off!

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    how bolt able have you made it? my reasoning is you made it as a bolt in sub assembly it doesnt matter to much about crashing

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    Quote Originally Posted by burgo
    how bolt able have you made it? my reasoning is you made it as a bolt in sub assembly it doesnt matter to much about crashing
    The chassis will be stronger than the wishbones, it's just something that happens to be due to the way they're loaded, but the stiffness worked into the chassis should mean that unless he stacks it big time it won't be going anywhere, it flexes 1.2mm iirc under a fictional maximum braking+maximum cornering force, elongation of CDS is around 5% and that deformation even in a small 30cm triangulation tube is about 0.35%. Quick calculation with it hitting a tyre wall (deceleration happening during 1s) says anything under 25mph shouldn't even bend the chassis, which is pretty cool Basically it wasn't exactly designed with crashing in mind (the entire thing was done in 10 weeks, there just isn't time for everything) but even if it was, it would be sacrificing the stiffness of something somewhere.

    Problem with bolt in subframes too is they flex like a *******, it's like spot welding a chassis together instead of stitch welding it, you're relying of x number of points where it's all bolted up to take the stresses in the chassis, which are piddly little bolts, instead of nice chunky tubes.

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    The idea is the shell will be bolted to the full car framework as there will be nothing on the shell that is structural. I should be able to lift the shell up over the top once done.

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    Quote Originally Posted by The Simps
    The idea is the shell will be bolted to the full car framework as there will be nothing on the shell that is structural. I should be able to lift the shell up over the top once done.
    After you

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    will be the only vectra fitted with a Hiab on the back.

  10. #1160
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    .
    Last edited by t45_ste; 14-06-10 at 03:33 PM.

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