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 1Likes
06-06-2009, 04:47 PM
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CC Member
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Join Date: Sep 2007
Location: Dillon,CO / Daytona,FL,
CO
Cobra Make, Engine: Kirkham 482 FE, Pond Aluminum, CNC ported heads
Posts: 63
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Not Ranked
__________________
May You Stay Forever Young
Rollinggeorge 
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06-06-2009, 05:51 PM
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Senior Club Cobra Member
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Join Date: Jun 2007
Location: Covington,
wa
Cobra Make, Engine: Superformance # 532, 466 BB, 560HP
Posts: 3,032
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Not Ranked
Damn fine job. 
__________________
John Hall
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06-07-2009, 05:44 AM
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Senior Club Cobra Member
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Join Date: Mar 2005
Location: Manchester,
NH
Cobra Make, Engine: AK1085 (302 Street), HTM111 (427 Comp), CSX2375R (289 Comp) and COB5999 (427 S/C)
Posts: 19,111
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Not Ranked
Very nice job!
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06-08-2009, 09:25 AM
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CC Member
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Join Date: Feb 2006
Location: Scottsdale,
AZ
Cobra Make, Engine: Superformance, Roush 427R-095, Pro Systems carb, 2" headers, Buckshot Racefab side pipes, 10s off idle start
Posts: 705
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Not Ranked
No doubt the loss of 40 lbs is worth the price of the flywheel, but do you have any performance data logged? It looks like the weight savings, not including rotational mass has a value of 8 wheel HP or so.
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06-06-2009, 07:20 PM
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CC Member
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Join Date: May 2009
Cobra Make, Engine:
Posts: 135
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Not Ranked
Any concerns with strength or durability with the super light flywheel? Is it enough flywheel to idle?
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06-06-2009, 08:11 PM
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CC Member
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Join Date: Aug 2001
Cobra Make, Engine: CSX Cars
Posts: 754
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Not Ranked
David,
So how did it do under testing, did you dump the clutch at 6000 rpm yet?
Allan
__________________
A happy SAI customer
Cobra Make & Engine: Continuation Series Shelby Cobra, CSX 7034 the most accurately detailed Continuation Cobra to original specification since the demise of CSX 4027.
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06-06-2009, 10:43 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
Quote:
Originally Posted by pusherfans
Any concerns with strength or durability with the super light flywheel? Is it enough flywheel to idle?
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Good questions. I am pretty sure there will not be a problem with the idle. Fortunately, our customers pretty much like the grumpy idle anyway. Every time we reduce the rotational mass the motor seems to just run better. Also, I don't think there will be a problem with durability--we kept the flywheel pretty beefy in the loaded area.
David
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06-06-2009, 08:29 PM
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Senior Club Cobra Member
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Join Date: Mar 2006
Location: Jacksonville,
FL
Cobra Make, Engine: Hi-Tech
Posts: 480
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Not Ranked
When will this be available and how much? Very nice! This is going on my Christmas list.
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06-06-2009, 10:45 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
Quote:
Originally Posted by hi-tech cobra
When will this be available and how much? Very nice! This is going on my Christmas list.
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Obviously, it is all programmed and ready to go. We are in the prototype phase. We will throw it in a car early next week and test it out. Not sure on price yet. To keep the price as low as possible, we are looking to make all the parts we can--possibly even the whole thing. Anyone know where we can get the clutch diaphragm spring? Other parts?
David
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06-06-2009, 08:43 PM
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CC Member
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Join Date: Apr 2009
Location: Bethesda,
MD
Cobra Make, Engine: CSX 6022, navy blue, period correct 427 SO
Posts: 2,154
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Not Ranked
And you aren't concerned about warping? The 2007-2008 GT500s have vented (if that's what you call it) flywheels that have a problem with warping due to the decreased strength over solid flywheels. A TSB has been issued for the problem and it seems to pretty much affect everyone that drives their car hard. The fix is to replace the flywheel with a solid one....
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06-06-2009, 10:48 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
Quote:
Originally Posted by dcdoug
And you aren't concerned about warping? The 2007-2008 GT500s have vented (if that's what you call it) flywheels that have a problem with warping due to the decreased strength over solid flywheels. A TSB has been issued for the problem and it seems to pretty much affect everyone that drives their car hard. The fix is to replace the flywheel with a solid one....
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Such vented flywheels are used all the time. All of our replicas (especially the Kirkham)are very light vehicles. We don't slip our clutches too much and generate all that heat. But, as I said above--these are all good questions and that is why some poor sap has to step up to the plate and test it. 
David
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06-06-2009, 09:45 PM
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Senior Club Cobra Member
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Join Date: Feb 2007
Cobra Make, Engine: KMP 539, a Ton of Aluminum
Posts: 9,592
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Not Ranked
Quote:
Originally Posted by David Kirkham
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  |
How about a sale on something? |
06-06-2009, 10:51 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
Quote:
Originally Posted by RodKnock
How about a sale on something? |
I said that auto industry thing as a joke with all the bailouts and bankrupt auto makers. But, hey, you NEVER know what kind of deals we make here in Club Cobra.
What are you interested in?
David
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06-07-2009, 05:22 AM
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CC Member
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Join Date: Jan 2004
Location: Rocky Hill,
CT
Cobra Make, Engine: Kirkham, 482 Shelby / TKO 600
Posts: 64
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Not Ranked
David,
A flywheel, clutch, bellhousings and clutch actuator stimulus package would be great. How long before the billet bellhousing?
Nice Job!
Peter
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06-07-2009, 11:35 AM
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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
Quote:
Originally Posted by Rottie
David,
A flywheel, clutch, bellhousings and clutch actuator stimulus package would be great. How long before the billet bellhousing?
Nice Job!
Peter
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Not sure on the bell housing time frame. I am not sure it will work without being way too much money for the billet. We are looking into that.
One thing we want to do is make the bell housing 2 piece, bolt together. That would make it very easy to dial in the bell housing. No more welding; no more offset pins.
David
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06-07-2009, 09:20 AM
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CC Member
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Join Date: Mar 1999
Location: TACOMA,
WA
Cobra Make, Engine: Everett Morrision FE 427 so 2-4s
Posts: 2,025
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Not Ranked
That really looks impressive, but have you actually tested it in a car? It really goes against the original concept of a flywheel. I'd think the lack of enertia may be intolerable for some cam amd intake setups. It may be just fine for instant on power, but what about when the engine is just trying to idle? It has been my observation with everything, if it has an advantage it also has a disadvantage. You allways give up something to get sometihng else. The question you should allways ask yourself can I live with the down side?
__________________
Mike H
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06-07-2009, 10:59 AM
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CC Member
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Join Date: Jun 2004
Location: Clifton,
VA
Cobra Make, Engine: KMP, Keith Craft 482
Posts: 21
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Not Ranked
WOW as usual. Are you going to build one for the Toploader??
Art
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06-07-2009, 12:05 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
Quote:
Originally Posted by D+10
WOW as usual. Are you going to build one for the Toploader??
Art
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Building one for a Top loader is not a problem...finding a hub for the clutch that fits the Top Loader input shaft, however, might be.
David
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06-07-2009, 07:32 PM
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CC Member
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Join Date: Oct 2002
Location: Eagle,
Ne.
Cobra Make, Engine: 1966 Lone Star 427SC.
Posts: 4,310
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Not Ranked
David- you have email. (your PM box is full) 
__________________
Regards,
Kevin
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06-07-2009, 07:53 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
Drop me a line at
kirkhammotorsports at gmail dot com
David
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