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Joshstix Forums Junkie Toymods Vice President Location: Sydney Registered: May 2002	Re: 3sgte group A fuel rail Mon, 25 April 2005 12:40 Out-flows as in the cubic feet per minute of air flowed through the manifold at a specific pressure differential is lower than that through the head at the same pressure differential. This is the case with pretty much every late model twin cam engine. There's flow test numbers for the bare manifold, a extrude honed flow balanced manifold, bare stock head and stock head with stock manifold on the MR2OC forum if you want to take a look. The head flows more than the manifold when tested seperately and the head flow is reduced when tested with the manifold attached. There is also tests with the better aftermarket manifolds there and they all reduced the head flow. The way you're looking at it is saying that yes at maximum flow the middle two runners flow more air than the outer two but at less than max flow that doesn't matter. However the reason why the middle two runners flow more air is that there is less restriction to air flow. Meaning that for the same amount of vacuum placed on one of the centre runners it will flow more air than an outer runner. This restriction exists at all times not just when the manifold is flowing at it's maximum potential. Take the example of an engine with quad throttles, they all have the same restriction. Now place your hand over half of one of the trumpets, we still have the exact same head flow properties but we have one runner with mroe restriction and therefore less airflow right?? [Updated on: Mon, 25 April 2005 12:45] [Report message to a moderator]

	Subject	Poster	Date
	3sgte group A fuel rail	ralfross	Sat, 16 April 2005 01:52
	Re: 3sgte group A fuel rail	takai	Sat, 16 April 2005 01:55
	Re: 3sgte group A fuel rail	Joshstix	Sat, 16 April 2005 06:46
	Re: 3sgte group A fuel rail	Hunty	Tue, 19 April 2005 04:47
	Re: 3sgte group A fuel rail	ralfross	Sat, 16 April 2005 08:24
	Re: 3sgte group A fuel rail	ralfross	Tue, 19 April 2005 04:28
	Re: 3sgte group A fuel rail	-==L=a=N=c=E==-	Sat, 16 April 2005 08:35
	Re: 3sgte group A fuel rail	Joshstix	Sat, 16 April 2005 13:04
	Re: 3sgte group A fuel rail	MR. 2	Sun, 17 April 2005 05:27
	Re: 3sgte group A fuel rail	takai	Sun, 17 April 2005 06:11
	Re: 3sgte group A fuel rail	Puffy	Sun, 17 April 2005 06:46
	Re: 3sgte group A fuel rail	TerryOBeirne	Sun, 17 April 2005 07:08
	Re: 3sgte group A fuel rail	ralfross	Sun, 17 April 2005 08:32
	Re: 3sgte group A fuel rail	510rob	Sun, 17 April 2005 21:14
	Re: 3sgte group A fuel rail	takai	Sun, 17 April 2005 21:23
	Re: 3sgte group A fuel rail	davedave	Sun, 17 April 2005 23:38
	Re: 3sgte group A fuel rail	Hunty	Mon, 18 April 2005 00:30
	Re: 3sgte group A fuel rail	ralfross	Mon, 18 April 2005 11:32
	Re: 3sgte group A fuel rail	takai	Mon, 18 April 2005 12:08
	Re: 3sgte group A fuel rail	Brock	Mon, 18 April 2005 12:23
	Re: 3sgte group A fuel rail	ralfross	Mon, 18 April 2005 13:01
	Re: 3sgte group A fuel rail	ralfross	Mon, 18 April 2005 11:47
	Re: 3sgte group A fuel rail	Hunty	Mon, 18 April 2005 23:43
	Re: 3sgte group A fuel rail	-==L=a=N=c=E==-	Tue, 19 April 2005 07:30
	Re: 3sgte group A fuel rail	SXY184	Tue, 19 April 2005 07:57
	Re: 3sgte group A fuel rail	ralfross	Tue, 19 April 2005 11:03
	Re: 3sgte group A fuel rail	-==L=a=N=c=E==-	Tue, 19 April 2005 11:13
	Re: 3sgte group A fuel rail	Puffy	Tue, 19 April 2005 11:40
	Re: 3sgte group A fuel rail	ralfross	Tue, 19 April 2005 12:56
	Re: 3sgte group A fuel rail	-==L=a=N=c=E==-	Tue, 19 April 2005 13:14
	Re: 3sgte group A fuel rail	ralfross	Tue, 19 April 2005 13:54
	Re: 3sgte group A fuel rail	Roundy	Thu, 21 April 2005 12:34
	Re: 3sgte group A fuel rail	ralfross	Thu, 21 April 2005 14:07
	Re: 3sgte group A fuel rail	RWDboy	Thu, 21 April 2005 15:09
	Re: 3sgte group A fuel rail	Joshstix	Fri, 22 April 2005 03:25
	Re: 3sgte group A fuel rail	Roundy	Fri, 22 April 2005 10:48
	Re: 3sgte group A fuel rail	RWDboy	Fri, 22 April 2005 14:17
	Re: 3sgte group A fuel rail	Joshstix	Mon, 25 April 2005 09:34
	Re: 3sgte group A fuel rail	RWDboy	Mon, 25 April 2005 11:20
	Re: 3sgte group A fuel rail	Joshstix	Mon, 25 April 2005 12:40
	Re: 3sgte group A fuel rail	RWDboy	Tue, 26 April 2005 05:25
	Re: 3sgte group A fuel rail	Joshstix	Tue, 26 April 2005 07:27
	Re: 3sgte group A fuel rail	Classique71	Tue, 26 April 2005 09:30
	Re: 3sgte group A fuel rail	Joshstix	Tue, 26 April 2005 09:34
	Re: 3sgte group A fuel rail	-==L=a=N=c=E==-	Tue, 26 April 2005 09:34
	Re: 3sgte group A fuel rail	ralfross	Tue, 26 April 2005 11:00
	Re: 3sgte group A fuel rail	-==L=a=N=c=E==-	Tue, 26 April 2005 11:07
	Re: 3sgte group A fuel rail	Classique71	Tue, 26 April 2005 11:47
	Re: 3sgte group A fuel rail	RWDboy	Tue, 26 April 2005 13:10

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