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2Likes

06-16-2008, 03:27 PM
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CC Member
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Join Date: Mar 2001
Location: Provo,
Ut
Cobra Make, Engine: Kirkham, 427
Posts: 6,990
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Not Ranked
Here is a shot of the inside of the collector. Notice it is completely sanded to remove any burrs or boogers for really nice flow.
Can you imagine anyone lining up a 2 inch collector in the MIDDLE of this    Remember, EACH of those tubes in the 4 into 1 collector are 2 inches in diameter! There is simply NO exhaust coming out of the middle of the collector. I can't believe anyone could even sell that with a straight face.
You would not believe the things we have seen.

Last edited by David Kirkham; 06-16-2008 at 03:40 PM..
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06-16-2008, 03:32 PM
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CC Member
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Join Date: Mar 2001
Location: Provo,
Ut
Cobra Make, Engine: Kirkham, 427
Posts: 6,990
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Not Ranked
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06-16-2008, 03:34 PM
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CC Member
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Join Date: Mar 2001
Location: Provo,
Ut
Cobra Make, Engine: Kirkham, 427
Posts: 6,990
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Not Ranked
Here you can see the head tubes after polish on the head fixture. They will turn a really beautiful bluish color on start up. The collector and exhaust will then turn a really stunning golden color farther down the tube.
The head tube kick to the left (in the picture) to get around the foot box.

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06-16-2008, 03:35 PM
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CC Member
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Join Date: Mar 2001
Location: Provo,
Ut
Cobra Make, Engine: Kirkham, 427
Posts: 6,990
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Not Ranked
Here is the master tube bender, tool maker, and all around cool dude...Sandwich. Don't ever tell him he can't do something! Here he is testing out our really nasty 2D 2 inch bend tooling. The radius is really, really tight. It is the only radius that will work for our head tubes.

Last edited by David Kirkham; 06-16-2008 at 03:38 PM..
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06-16-2008, 03:49 PM
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CC Member
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Join Date: Mar 2001
Location: Provo,
Ut
Cobra Make, Engine: Kirkham, 427
Posts: 6,990
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Not Ranked
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06-16-2008, 03:52 PM
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CC Member
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Join Date: Mar 2001
Location: Provo,
Ut
Cobra Make, Engine: Kirkham, 427
Posts: 6,990
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Not Ranked
A little earlier, someone asked about Kirkham testing. We do testing all the time--usually to destruction
Here was one of my dumber ideas. We were going to make the threads on the hub out of aluminum to save weight on the hub.  (It is a LONG story, for another thread)
Anyway, no one thought it would hold and so we set up a test. I lathed an aluminum hub and screwed a wing-nut on it. We then tried to break it off in the press. Notice the I beams are bending

Last edited by David Kirkham; 06-16-2008 at 03:58 PM..
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06-16-2008, 03:55 PM
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CC Member
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Join Date: Mar 2001
Location: Provo,
Ut
Cobra Make, Engine: Kirkham, 427
Posts: 6,990
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Not Ranked
Here you can see the gauge reads 24 tons! Threads always amaze me with the amount of weight they can hold. Remember, the hub is hollow.
Anyway, I "Deep-Sixed" the idea after Thomas asked me how I was going to keep people from dinging the threads when they took the wheels off and on!
Ahhh, another "brilliant" idea on the ash heap of BAD ideas.

Last edited by David Kirkham; 06-16-2008 at 04:00 PM..
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