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Old 02-21-2007, 02:41 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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501Cobra,

Good idea! I will look into putting part numbers on the block. You are right, it certainly can be a replacement block.

quickjack,

We had the billet heat treated before we even started. I didn't want the trouble of it warping after it was machined. You are right, by the time you count up the spindle time, I am sure there will be far more parts we make that we will have better margins with.

Steve,

I know you are just joking and it is interesting to look at raw material costs.

Actually, you can not buy aluminum for $1.50/pound. Forgings are more like $3-$5/pound and that does not include the price of tooling. We currently pay $2.25 for extrusion (not forgings) and over $3 for plate--when you can find it. The forging we had made was almost $2000.

Then add:

$125,000 milling machine
$100,000 in tooling, cutter, holders, etc.
$50,000 in CAD/CAM software
200 hours of design time
200 hours of programming
100 hours of proofing--(so far)

and I haven't even paid to turn on the lights yet, paid for opportunity costs, or received a guarantee that it will actually work and people will buy it.

As for material costs, the CAD/CAM programs that I paid $50,000 had a raw material cost of maybe 0.50 cents for the discs they came on.

The raw material costs for the Mona Lisa are probably a dollar.

BUT if you want the "best" raw material cost vs retail cost...

just talk to a lawyer!!!



I know you were just joking, and sometimes I wonder why things cost so much too. I am sure everyone realizes there is WAY more to making something than just the raw material cost of whatever you start with.

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.
"Fear is the thief of dreams."

Last edited by David Kirkham; 02-21-2007 at 03:00 PM..