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Kirkham Motorsports

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Old 06-06-2009, 02:13 PM
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Default New! Kirkham 427 FE Billet Flywheel Twin Clutch

Fellow Car Nuts:

As the automotive industry stinks right now, and we probably won't get a bail out, we decided to go into the dairy industry and make Swiss Cheese

In the never ending quest to remove weight from the car, Sandwich and Thomas got together yesterday and created a little more eye candy for all of us. This is our new Billet Aluminum 427 FE flywheel and pressure plate assembly. The twin-disk clutch unit is from McLeod. They didn't have an FE flywheel for the set up, so we figured we'd make one.

Removing mass from around the outside of the flywheel is more important the mass from the inside as the outside mass has a greater moment of inertia. Anyone who has driven an FE with a steel flywheel knows how nice it is to remove some of that weight. Your motor spins up MUCH faster, making it so much easier to shift gears quickly. Frankly, I can't stand to drive a car with a steel flywheel--they take way too long to rev up so you are always waiting to shift gears.

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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; 06-06-2009 at 02:41 PM..
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Old 06-06-2009, 02:15 PM
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Since it is easier to put our cars on Weight Watchers than ourselves...

We figured while we were at it, we'd remove a little of the "extra" aluminum.

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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; 06-06-2009 at 02:22 PM..
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Old 06-06-2009, 02:16 PM
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This set up is for a Tremec TKO 600

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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; 06-06-2009 at 02:23 PM..
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Old 06-06-2009, 02:18 PM
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Here you can see the twin clutch disks.

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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; 06-06-2009 at 02:25 PM..
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Old 06-06-2009, 02:23 PM
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Now for the good stuff..

This entire set up 23.76 pounds!

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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; 06-06-2009 at 02:27 PM..
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Old 06-06-2009, 02:25 PM
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This is the original type set up with a steel flywheel and normal pressure plate. It weighs 65.85 pounds for a 42.09 pound savings! Our new set up is about 1/3 the weight. No wonder the original cars reved up so slowly.

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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; 06-06-2009 at 02:43 PM..
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Old 06-06-2009, 02:27 PM
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41.06 pounds for the steel flywheel. This is what makes putting them on so dangerous. I am always wondering if I am going to drop it on my foot.

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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; 06-06-2009 at 02:31 PM..
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Old 06-06-2009, 02:30 PM
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At 17.60 pounds, a normal aluminum flywheel is less than 1/2 the weight of the steel moster. Now you know why the aluminum ones are so popular. We recommend everyone runs an aluminum flywheel--especially if it is one of ours

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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; 06-06-2009 at 02:44 PM..
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Old 06-06-2009, 02:34 PM
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42.38 pounds for the aluminum flywheel and pressure plate assembly...still quite heavy--but a vast improvement over the 65.85 pound clutch from the M1 Tank.

Our new flywheel and pressure plate set up, however, is almost 1/2 the weight of the standard "lightened" aluminum set up. Time for testing...I have a tough job, but someone has to do it.

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; 06-06-2009 at 02:45 PM..
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Old 06-06-2009, 02:35 PM
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..... and my kids were just asking me what I want for Father's Day.....
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Old 06-06-2009, 03:26 PM
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David, that is very cool. Removing the extra aluminum from the perimeter of the circle doesn't weaken it for starter motor purposes? Or is the amount of stress put on it while cranking really just not enough to matter?
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Old 06-06-2009, 04:27 PM
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Got one for a small block?
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Old 06-06-2009, 05:07 PM
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David,,,,,,,Looks great, but I need help with my hood scoop........Ron
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Old 06-06-2009, 05:35 PM
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David,

I was thinking it might look like this:





It would save weight and ...well I don't know what else it would do once it was installed, cus no one would see it. But if you think of it like a girlfriend, you know what she has under her clothes and that counts for something

Rob
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Old 06-06-2009, 05:47 PM
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Thumbs up

A big slice of Raisin Pie for the innovator!!

Is this Pelosi/Gore approved??
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Old 06-06-2009, 06:51 PM
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Damn fine job.
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Old 06-06-2009, 06:56 PM
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Quote:
Originally Posted by Rwillia4 View Post
Got one for a small block?
I was thinking the same thing!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

David
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Old 06-06-2009, 07:48 PM
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Horsepower rating?
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Old 06-06-2009, 08:15 PM
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David,

Very nice work as usual!

Did my eyes deceive me or did I see sintered iron discs in that uber light assembly? Two more questions; which McLeod pressure plate is that and how much plate load does it provide.

Thanks - especially for the inspiration, again and always.


Ed
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Old 06-06-2009, 08:20 PM
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Any concerns with strength or durability with the super light flywheel? Is it enough flywheel to idle?
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