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Old 01-11-2005, 12:26 PM
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David Kirkham David Kirkham is offline
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Join Date: Mar 2001
Location: Provo, Ut
Cobra Make, Engine: Kirkham, 427
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xl,

Spring rates are not important, wheel rates are important. The spring works with whatever geometry the suspension has giving you X wheel rate. Our suspension geometry is a little different than anyone else's so you can't exactly compare us to anyone else. (But, that doen't mean we have found the most perfect soloution there is to find.)

We arrived at our spring rates through Dave Dralle, and through many, many, many test miles. Of course, the tester was probably biased, (my brother and I). I, personally, do not like the weak springs in the rear as I don't like the rear end swaying around that much. Others, undoubtedly smart, choose different rates because of different preferences.

Also, driving on the street and driving on a track are different animals. Pure track cars are terrible to run on the street--of course, some people don't mind, though. I tend to set things up more for street use than track use. Most customers are happy with our set up, but there are a few, like Morris, that blow everyone away and not only raise the bar, but set a completely new one. We would be dumb not to listen to him.

I have heard lots of good things about Tom's Motorsports as well. I would love to hear his comments, and complaints, and incorporate what we can into our production as well.

Keep the ideas coming!

David
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David Kirkham, President Kirkham Motorsports
Manufacturer Aluminum Body Kit Cars and supplier to Shelby* for their CSX4000, CSX7000, and CSX8000 289 and 427 Cobra
*Kirkham Motorsports is not affiliated with Ford or Carroll Shelby or any of their trademarks.
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