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170bhp Regular Registered: January 2004	F1 Mclaren exhaust, weight saving Thu, 17 November 2005 12:03 This is taken from a book my bro bought in the UK, cost him $200Aus and is mainly written by Gordon Murray and Ron Dennis. ".....The volume of gas blasting through a 6.1litre V12 engine at 7500rpm demands a very considerable exhaust system, whivh to meet international market regulations - as researched and monitored assiduosly at Genesis by the dilegent Harold Dermott - would require state of the art pollution trapping catalysers. Silncer box volume needed to be a whopping 65 litres - the size of a loosely rolled double bed duvet. At Genesis Gordon almost despaired: "That was going to be seriously heavy, and how could we house it? Then the idea dawned. Because the engine and transmission were providing the chassis structure at the back of the car there was nothing at the tail we could use as an impact-absorbing crush structure, beyond whatever body panelling we would end up with there. If we shaped this enormous silencer box to run the width of the car, immediately inside the tail bodywork, that could double up as our crash pad". One item, multiple functions - yet again, race-bred engineering at it's best. But what could a V12 exhaust system, feeding a 65-litre silencer, possibley weigh? The Fax flashed back from Munich - exhaust system in standard BMW production steel, 100kg. This was blasphemy to the weight saving zealot. Gordon flew to Munich. "paul introduced me to the guy who was responsible for designing the exhaust system, and winked at me, encouraging me to put on a show in the middle of the design office - to encourage others." "taht made the guys not only realise we were serious, but also encouraged them to start thinking - really thinking - about the weight saving problem, and they began suggestiong good ideas, initiating stuff - and one saud why not use inconel for the exhaust manifolds...." This stainless steel alloy is highly heat resu=istant, robust and light - used commonly in very high temperature turbo charger installations. Thinner guage sections could endure exhaust system duty, and it was inherently lightweight. Downside - it was very expensive, on weight grounds alone it had to be the answer. The manifolds were fabricated in 0.8mm wall thickness inconel piping, the "double-duvet" box fabricated in stainless steel- the Mclaren sports car exhaust system alone cost as much as a small family sedan. This book was very expensive but incredibley detailed with blueprints etc etc, it is THE definitive F1 Mclaren book. [Report message to a moderator]

	Subject	Poster	Date
	F1 Mclaren exhaust, weight saving	170bhp	Thu, 17 November 2005 12:03
	Re: F1 Mclaren exhaust, weight saving	clubagreenie	Thu, 17 November 2005 12:40
	Re: F1 Mclaren exhaust, weight saving	Shraka	Thu, 17 November 2005 12:43
	Re: F1 Mclaren exhaust, weight saving	jonchai	Thu, 17 November 2005 13:49
	Re: F1 Mclaren exhaust, weight saving	Conquest	Thu, 17 November 2005 14:13
	Re: F1 Mclaren exhaust, weight saving	illuminatus	Thu, 17 November 2005 22:09
	Re: F1 Mclaren exhaust, weight saving	Shraka	Fri, 18 November 2005 00:29
	Re: F1 Mclaren exhaust, weight saving	illuminatus	Fri, 18 November 2005 00:46
	Re: F1 Mclaren exhaust, weight saving	illuminatus	Fri, 18 November 2005 00:48
	Re: F1 Mclaren exhaust, weight saving	clubagreenie	Thu, 17 November 2005 14:24
	Re: F1 Mclaren exhaust, weight saving	170bhp	Thu, 17 November 2005 21:06
	Re: F1 Mclaren exhaust, weight saving	170bhp	Thu, 17 November 2005 21:07
	Re: F1 Mclaren exhaust, weight saving	170bhp	Thu, 17 November 2005 21:08
	Re: F1 Mclaren exhaust, weight saving	ae86drift	Fri, 18 November 2005 00:37
	Re: F1 Mclaren exhaust, weight saving	Corona RT142	Thu, 17 November 2005 22:15
	Re: F1 Mclaren exhaust, weight saving	Merudo	Mon, 21 November 2005 00:33
	Re: F1 Mclaren exhaust, weight saving	Big Rob	Fri, 18 November 2005 00:20
	Re: F1 Mclaren exhaust, weight saving	Corona RT142	Fri, 18 November 2005 01:14
	Re: F1 Mclaren exhaust, weight saving	170bhp	Fri, 18 November 2005 01:50
	Re: F1 Mclaren exhaust, weight saving	magicmitch	Fri, 18 November 2005 01:58
	Re: F1 Mclaren exhaust, weight saving	Shraka	Fri, 18 November 2005 03:03
	Re: F1 Mclaren exhaust, weight saving	170bhp	Fri, 18 November 2005 02:08
	Re: F1 Mclaren exhaust, weight saving	SR20 trueno	Sun, 20 November 2005 05:34
	Re: F1 Mclaren exhaust, weight saving	spirokeet	Sun, 20 November 2005 21:57
	Re: F1 Mclaren exhaust, weight saving	170bhp	Sun, 20 November 2005 08:34
	Re: F1 Mclaren exhaust, weight saving	Corona RT142	Sun, 20 November 2005 08:40
	Re: F1 Mclaren exhaust, weight saving	mc68	Sun, 20 November 2005 09:07
	Re: F1 Mclaren exhaust, weight saving	b1gb3n	Sun, 20 November 2005 16:47
	Re: F1 Mclaren exhaust, weight saving	mc68	Mon, 21 November 2005 10:22
	Re: F1 Mclaren exhaust, weight saving	bathurst-91	Sun, 20 November 2005 21:09
	Re: F1 Mclaren exhaust, weight saving	b1gb3n	Mon, 21 November 2005 00:29
	Re: F1 Mclaren exhaust, weight saving	Shraka	Mon, 21 November 2005 02:29
	Re: F1 Mclaren exhaust, weight saving	illuminatus	Sun, 20 November 2005 22:44
	Re: F1 Mclaren exhaust, weight saving	170bhp	Mon, 21 November 2005 06:33
	Re: F1 Mclaren exhaust, weight saving	illuminatus	Mon, 21 November 2005 08:33
	Re: F1 Mclaren exhaust, weight saving	SR20 trueno	Mon, 21 November 2005 23:33
	Re: F1 Mclaren exhaust, weight saving	Soarer	Mon, 21 November 2005 09:01
	Re: F1 Mclaren exhaust, weight saving	b1gb3n	Mon, 21 November 2005 14:02
	Re: F1 Mclaren exhaust, weight saving	jonchai	Mon, 21 November 2005 09:44
	Re: F1 Mclaren exhaust, weight saving	-gt-	Mon, 21 November 2005 06:52
	Re: F1 Mclaren exhaust, weight saving	b1gb3n	Mon, 21 November 2005 07:33
	Re: F1 Mclaren exhaust, weight saving	Corona RT142	Mon, 21 November 2005 08:46
	Re: F1 Mclaren exhaust, weight saving	Corona RT142	Mon, 21 November 2005 09:15
	Re: F1 Mclaren exhaust, weight saving	Soarer	Tue, 22 November 2005 22:22
	Re: F1 Mclaren exhaust, weight saving	Corona RT142	Mon, 21 November 2005 22:01
	Re: F1 Mclaren exhaust, weight saving	justcallmefrank	Mon, 21 November 2005 22:34
	Re: F1 Mclaren exhaust, weight saving	justcallmefrank	Mon, 21 November 2005 22:36
	Re: F1 Mclaren exhaust, weight saving	Shraka	Mon, 21 November 2005 22:56
	Re: F1 Mclaren exhaust, weight saving	b1gb3n	Tue, 22 November 2005 04:17
	Re: F1 Mclaren exhaust, weight saving	Yian	Tue, 22 November 2005 05:53
	Re: F1 Mclaren exhaust, weight saving	Shraka	Tue, 22 November 2005 06:36
	Re: F1 Mclaren exhaust, weight saving	illuminatus	Tue, 22 November 2005 22:45
	Re: F1 Mclaren exhaust, weight saving	-gt-	Mon, 21 November 2005 23:19
	Re: F1 Mclaren exhaust, weight saving	Corona RT142	Mon, 21 November 2005 23:44
	Re: F1 Mclaren exhaust, weight saving	illuminatus	Tue, 22 November 2005 00:23
	Re: F1 Mclaren exhaust, weight saving	illuminatus	Tue, 22 November 2005 04:29
	Re: F1 Mclaren exhaust, weight saving	b1gb3n	Tue, 22 November 2005 04:58
	Re: F1 Mclaren exhaust, weight saving	Big Rob	Tue, 22 November 2005 05:32
	Re: F1 Mclaren exhaust, weight saving	Corona RT142	Tue, 22 November 2005 05:44
	Re: F1 Mclaren exhaust, weight saving	justcallmefrank	Tue, 22 November 2005 06:18
	Re: F1 Mclaren exhaust, weight saving	Corona RT142	Tue, 22 November 2005 09:09
	Re: F1 Mclaren exhaust, weight saving	riceburna73	Tue, 22 November 2005 09:46
	Re: F1 Mclaren exhaust, weight saving	170bhp	Tue, 22 November 2005 10:32
	Re: F1 Mclaren exhaust, weight saving	170bhp	Tue, 22 November 2005 10:46
	Re: F1 Mclaren exhaust, weight saving	170bhp	Tue, 22 November 2005 10:49
	Re: F1 Mclaren exhaust, weight saving	justcallmefrank	Tue, 22 November 2005 13:10
	Re: F1 Mclaren exhaust, weight saving	illuminatus	Tue, 22 November 2005 22:38
	Re: F1 Mclaren exhaust, weight saving	justcallmefrank	Tue, 22 November 2005 23:06
	Re: F1 Mclaren exhaust, weight saving	Shraka	Wed, 23 November 2005 00:17
	Re: F1 Mclaren exhaust, weight saving	Corona RT142	Wed, 23 November 2005 00:27
	Re: F1 Mclaren exhaust, weight saving	Soarer	Tue, 22 November 2005 22:26
	Re: F1 Mclaren exhaust, weight saving	Corona RT142	Wed, 23 November 2005 00:31
	Re: F1 Mclaren exhaust, weight saving	illuminatus	Wed, 23 November 2005 00:43
	Re: F1 Mclaren exhaust, weight saving	Shraka	Wed, 23 November 2005 00:52
	Re: F1 Mclaren exhaust, weight saving	illuminatus	Wed, 23 November 2005 01:01
	Re: F1 Mclaren exhaust, weight saving	SR20 trueno	Wed, 23 November 2005 10:06
	Re: F1 Mclaren exhaust, weight saving	oldcorollas	Wed, 23 November 2005 14:48
	Re: F1 Mclaren exhaust, weight saving	Blown86	Wed, 23 November 2005 14:35
	Re: F1 Mclaren exhaust, weight saving	Blown86	Wed, 23 November 2005 16:34
	Re: F1 Mclaren exhaust, weight saving	oldcorollas	Wed, 23 November 2005 16:47

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