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Old 08-28-2006, 11:07 AM
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jmarsey jmarsey is offline
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Join Date: Mar 2001
Location: NorCal, CA
Cobra Make, Engine: A Blue Car
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Dean,

Chassis setup is a big subject matter and we could go on for days talking about innuendoes and small aspects of it. If I were in your shoes I would do the following:

Talk with someone at Kirkham that can help you with your concerns.

Find someone local that knows something about chassis setup for road racing. There is also some good reading material available on the subject. This is a good start:
http://www.amazon.com/gp/product/087...162231?ie=UTF8 There are some others good books too.

If you want to set your car up correctly, you need to back up and check the chassis and suspension for squareness to the center of the chassis and from corner to corner. You need to check that the wheels are the same distance from the center line: RF=LF from center line and RR=LR from center line. After that is adjusted, all 4 points, need to be square with the center line of the chassis and diagonally. You want to end up with a perfectly square rectangle, if you will, with the center line of the chassis being the center line of the rectangle.

Now that you are square and the right and left sides of the chassis are in equal relationship to each other, you would set approximate ride height, castor, camber, and rough alignment.

Now your chassis is ready for corner scaling which is where you try to get the chassis cross weights as close to 50/50 as possible, with driver and a ½ tank of fuel.

What I’ve described is just scratching the surface of this subject but I hope it gives you some kind of an idea. I have not described how to do this process nor the process of setting front & rear castor/camber, alignment, or why you would set your car up any particular way. All the experts can chime in for that. This is a vast subject matter and requires expertise to accomplish anything useful.

Your car is pretty close the way it is for now, as far as cross weight. I don’t know the adjustability of your Kirkham’s suspension. My JBL is fully adjustable and I had it pretty close for starters. When I took it to our chassis guru, he had it on the rack for more than 6 hours before he was happy. Again, this is the baseline setup, a starting point for which you would base you chassis tuning at the track from.

Good times, John
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