Quote:
Originally Posted by WildBillyT
The compressive strength of concrete is around 4000 psi. The compressive strength of cinder block is around 1250 psi.
With a car or especially with a truck, you can get close to 1250 psi. Figure the weight is spread out but comes to a point at each wheel. If you throw a cinder block under a rotor(!) or something like that then the weight gets concentrated.
Skip the block. Do it the right way.
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Hmmm come to think of it I believe I've been using cinder blocks but I always double them up when I put them under my truck, so 2 wide = 2500psi I take. And I never put anything sharp or small that concentrates the weight to a small surface area, plus always have a 2x8 chunk ontop for best distribution.
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-Vinnie
94 2wd SBSC Gmt400. 330CI LSX, Fast 102, Trickflow 205s, close ratio nv3500, 4.30/trutrac.
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