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FC CG Q's

Old 10-18-06, 12:25 AM
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FC CG Q's

what is the center og gravity on the fc from top to bottom fron to back side to side and is there a formula to find it so i can put in my weight and ect. thanks
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Old 10-18-06, 03:41 PM
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what, nobody knows
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Old 10-18-06, 04:09 PM
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Fred Puhn's book "How to Make your Car Handle" has a method of finding it. You have to have a set of scales, you weigh the car flat level, then you jack the rear end up pretty high and see how much the front weight increases. Then a couple of formulae and presto out pops the cg height.
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Old 10-23-06, 09:10 PM
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Just put the weight as low as you can when the car is on scales to see the corner weights. When you get your corner weight right you don't need to know the center of gravity unless you are going to do all the math for figuring out what springs and sway bars you need to get the car to only roll a couple degrees or whatever.
If you are going to go that far then refer to speedturns post above.
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Old 10-25-06, 08:19 PM
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Originally Posted by speedturn
Fred Puhn's book "How to Make your Car Handle" has a method of finding it. You have to have a set of scales, you weigh the car flat level, then you jack the rear end up pretty high and see how much the front weight increases. Then a couple of formulae and presto out pops the cg height.

My scaling program does the calculations for it. It was pretty scary jacking it up that high. The higher you get it, the more acurate the calc's will be.
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Old 10-26-06, 10:27 AM
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http://www.longacreracing.com/articles/art.asp?ARTID=22

That's a good article for finding the center of gravity height. Finding the center of gravity on the horizontal plane shouldn't take too much time.
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