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5KinKP60 Regular Location: Finland Registered: June 2002	Re: Exhaust Wrap Sat, 27 July 2002 09:09 I've had a look at this on my very old rwd Starlet. I see why this arrangement should not work. Fabricate a baffle surrounding the radiator to minimise airflow to get around radiator. Turn edge of this baffle arrangement outwards (towards air draught). This will help air pressure buildup in front of radiator. Now we have enormous air draught capacity to cool our radiator, we should be allright even if we vent a portion of this incoming air to somewhere else. We may remove about 20cm's of baffle arrangement edge (where it meets bonnet when it's closed). Remove this bit on that side where we have carburators. This would guide some incoming airstream (that does not pass thru radiator) directly to cool carbs. If we want to be perfectionists, a somekinda airstream guiding tunnel arrangement may be installed on the _underside_ of bonnet. If I'd be living in such a hot climate as Australia, I'd most likely strap on a temperature sensor on the side of my twin carb bodies. This would give real world indication on true operating environment of carbs. It would tell me what diy cooling methods work and which won't. BTW, exhaust wraps cause fatigue to sheet metal exhaust headers due to retained heat, and this will bake carbon off the base material. No carbon - no metal like strenght. Ceramic coating is very thin, nevertheless it works fine. It does not isolate header to cut down conductivity type cooling. It works on cutting down heat radiation. Those two are different types of cooling. Lower temperatures (below 400 degrees Celsius) cool by conductivity. Higher temps radiate heat for cooling. It's safe to assume that below 400 degrees, the ceramic coated header will reject as much heatsink into enginebay as an untreated header would. Above 400 degrees, the ceramic header will start to restrict heat rejection. [Report message to a moderator]

	Subject	Poster	Date
	Exhaust Wrap	GIN51E	Fri, 26 July 2002 07:05
	Re: Exhaust Wrap	Rasta	Fri, 26 July 2002 08:08
	Re: Exhaust Wrap	mrshin	Fri, 26 July 2002 08:22
	Re: Exhaust Wrap	Manny	Fri, 26 July 2002 09:16
	Re: Exhaust Wrap	GIN51E	Fri, 26 July 2002 10:00
	Re: Exhaust Wrap	SUPRAGTE	Fri, 26 July 2002 10:40
	Re: Exhaust Wrap	GIN51E	Fri, 26 July 2002 11:08
	Re: Exhaust Wrap	GIN51E	Fri, 26 July 2002 11:10
	Re: Exhaust Wrap	Cool1	Fri, 26 July 2002 12:21
	Re: Exhaust Wrap	GIN51E	Fri, 26 July 2002 12:51
	Re: Exhaust Wrap	Youngy	Fri, 26 July 2002 14:47
	Re: Exhaust Wrap	5KinKP60	Fri, 26 July 2002 16:59
	Re: Exhaust Wrap	JIMMYD	Fri, 26 July 2002 22:15
	Re: Exhaust Wrap	Cool1	Sat, 27 July 2002 04:23
	Re: Exhaust Wrap	GIN51E	Sat, 27 July 2002 06:30
	Re: Exhaust Wrap	Cool1	Sat, 27 July 2002 08:14
	Re: Exhaust Wrap	GIN51E	Sat, 27 July 2002 08:21
	Re: Exhaust Wrap	Cool1	Sat, 27 July 2002 08:32
	Re: Exhaust Wrap	BigWorm	Sat, 27 July 2002 08:47
	Re: Exhaust Wrap	GIN51E	Sat, 27 July 2002 08:57
	Re: Exhaust Wrap	Cool1	Sat, 27 July 2002 08:50
	Re: Exhaust Wrap	5KinKP60	Sat, 27 July 2002 09:09
	Re: Exhaust Wrap	Karl_skewes	Mon, 29 July 2002 10:19
	Re: Exhaust Wrap	Ben Wilson	Mon, 29 July 2002 22:15
	Re: Exhaust Wrap	RA23GT	Tue, 30 July 2002 01:53
	Re: Exhaust Wrap	Allan	Tue, 30 July 2002 02:28
	Re: Exhaust Wrap	justcallmefrank	Tue, 30 July 2002 02:35
	Re: Exhaust Wrap	Cool1	Tue, 30 July 2002 07:14
	Re: Exhaust Wrap	justcallmefrank	Tue, 30 July 2002 16:32
	Re: Exhaust Wrap	Cool1	Wed, 31 July 2002 08:17

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