View Single Post
  #345 (permalink)  
Old 06-07-2008, 09:40 PM
David Kirkham's Avatar
David Kirkham David Kirkham is offline
CC Member
Visit my Photo Gallery
Original Shelby Owner


 
Join Date: Mar 2001
Location: Provo, Ut
Cobra Make, Engine: Kirkham, 427
Posts: 6,990
Not Ranked     
Default

Here are the brake and clutch pedals.

You can see we designed them so there is clearance for your toe as you work the pedal. We designed the pedals straight so there would be no chance of the pedal flexing under hard braking. The original Cobra brake and clutch pedals are bent to put them in the right place for the driver to use them. The bend in the pedals is weak spot that causes the pedals to flex. That was a problem we had to solve in this car.

So, we placed the pedals optimally in the foot box for the driver, but that caused problems lining up the pedals with the master cylinders as the pedals are nowhere near directly under the master cylinders. So, we machined the offset into the top of the pedal--along the axis of the pivot pin--thereby eliminating any side loading of the pedals or the master cylinders.

The down side is the billet to make the pedals was 4 x 2 x 20! That is 16 pounds of billet! The finished machined pedals are just over 1 pound each.

We have been asked many times how much of the billet goes into chips. I would guess on average 90-95% of the aluminum billet goes into the chip barrel. Aluminum does recycle, however!

__________________
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."
Reply With Quote