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12-23-2005, 10:33 PM
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#1 |
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Humpty Dumpty Titanium Hood Hinges
257 grams -- and beautiful. Original hinge weighed 739 grams.
Last edited by Robert Linton; 12-24-2005 at 04:06 AM. |
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12-23-2005, 10:47 PM
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#2 |
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Cool, they should go nicely with your lightweight CF hood.
Merry Christmas Bob and best wishes to you
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Racetek Engineering 93 C2/RSR 3.8 92 C2 Coupe 89 911 Turbo 91 944S2 Club Sport 87 924S |
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12-23-2005, 11:33 PM
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#3 |
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Jarhead
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Wow. You know, it's funny. I don't think I've ever gotten excited about a hinge before. And to be honest, I was excited just from the title of the thread.
Brian
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89 C4: Gran Prix White/ Black Brian Hensarling Click here to become a Rennlist Member! |
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12-24-2005, 04:37 AM
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#4 |
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Did you have to fabricate a press to stamp them?
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PCA Member since 1978 Current: 91 C2 RSA Look, 74 914 2.5 Previous: 77 Lotus Esprit S1, 78 SC, 77 924, 82 924, 84 944, 84 Cab, 87 Coupe, 93 Corrado SLC, 03Boxster S. 
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12-24-2005, 04:53 AM
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#5 |
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Press tools were made.
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12-24-2005, 06:58 AM
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#6 |
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As ever they look first class.
Merry Christmas Robert. kevin |
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12-24-2005, 01:29 PM
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#7 |
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Complete !!
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Rob PCA Carrera Cup USA Registry www.carreracupusa.org 59' 356A Coupe -A garage bay hole- 08' LR3 Se 95' Defender 90 -all current- 69' 912, 65' 356c, 90' 964 cab GP/Blue, 70' 911e, 69' 911s, 69 911e/s, 01' 986, 99' 996 Aero, 92' Carrera Cup USA Edition #92012 |
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12-24-2005, 04:26 PM
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#8 |
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Is there any chance of marketing any of these pieces?
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PCA Member since 1978 Current: 91 C2 RSA Look, 74 914 2.5 Previous: 77 Lotus Esprit S1, 78 SC, 77 924, 82 924, 84 944, 84 Cab, 87 Coupe, 93 Corrado SLC, 03Boxster S.
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12-24-2005, 05:16 PM
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#9 |
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Without even amortization of the tooling costs, the net cost would be $2500 per pair. With a weight savings of 2.1 pounds this equates to $1190 per pound which is not bad for sports car racing, quite economical for NASCAR and Indy cars and an out and out bargain for F1.
But as it was a great engineer, without whose generous support the Humpty Dumpty project would not have achieved the full measure of success that it has, who was the person who pointed out that the original hinges were steel, this had to be done. |
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12-25-2005, 11:53 AM
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#10 |
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Pretty cool parts that I am sure "the engineer" would approve of.
Are the pivot points Ti or are they of another base metal?
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"It all started when I began looking around and just could not find my dream car. So I decided to build it myself” - Ferry Porsche 1969 912/5, first Porsche (Gone), 1970 914/6 with factory GT conversion kit see Excellence, May 1993 (Gone  ), 1983 944 driven from new daily into the ground and walked away from  , 1992 911 Carrera Cup USA Edition see Total 911, April 2008 (Gone ), 1995 993 RS Clone in progress 
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12-25-2005, 12:35 PM
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#11 |
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All titanium.
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12-25-2005, 03:52 PM
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#12 |
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Robert,
Beautiful parts. Just curious why a seemingly simple looking part is so expensive in titanium. Is it the raw material cost or due to the low volume of parts made? Greg |
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12-25-2005, 04:06 PM
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#13 |
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Robert what is the total weight of the car after all modifications?
Wild guess - under 1000 kg with half tank....
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burgass C4/89 |
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12-25-2005, 10:50 PM
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#14 |
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Tooling, Cad time, man hours to design, build and test.
it all costs $
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Rob PCA Carrera Cup USA Registry www.carreracupusa.org 59' 356A Coupe -A garage bay hole- 08' LR3 Se 95' Defender 90 -all current- 69' 912, 65' 356c, 90' 964 cab GP/Blue, 70' 911e, 69' 911s, 69 911e/s, 01' 986, 99' 996 Aero, 92' Carrera Cup USA Edition #92012 |
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12-26-2005, 03:19 PM
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#15 |
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Assuming the design, development & production costs are similar, I suppose my question is: what is the relative difference in cost between titanium and steel sheet metal? 2x, 5x, 20x?
$1,190/lb explains one reason why professional drivers don't have any excess body fat... |
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| Tags |
| 911, corrado, defender, grandson, hinge, hinges, hood, humpty, latch, lightweight, nascar, red, sport, style, supports |
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