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ed_ma61 Forums Junkie Location: Lost in the K hole Registered: May 2002	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts.... Wed, 13 October 2004 14:45 chuck - yes im considering staged injection on this manifold its apparently worth just a few ft/lbs in the upper rpm's dave - im not convinced that the 'pressure drop' hypothesis is the correct method of determining intake assemblies. infact im pretty bluntly against the whole idea. the whole history of head porting and such seems to have been built around the rubric of "hog it out until it flows like a big steel pipe" - and in the end you have very little pressure drop, and the head flows like haides. however we all know that abs flow figures mean very little these days, and its all about the quality of the flow, the velocities, swirl, and the harmonics that are present in a real operating engine. perhaps for a 'single rpm use only' engine, yes, 9000rpm and ports and throtles that just flow big numbers might be adequate. i suspect that is the story with that 400ps 2jzge w/ 55mm throttles. looking at the intake and given that size throtte, i doubt itd do much other than be a whingy, useless, undrivable engine until the whole lot hit 9000rpm, and just screamed its tits off. i dont want that from everything ive calculated, i *think* ive got my port X area sorted correctly, and that is supportive of the idea of a 45mm throttle (no i didnt start out trying to justify the throttles i have, i honestly started from scratch!). it may not be the 'ultimate' in terms of peak power and abs flow capability, but, fucking engines, compromises a plenty. i know that a dyno and several goes with different setups is the final solution. but im sure you can understand the pursuit to get somthing 'close to right' in the first instance (even if it all turns out to be shit, and i end up starting from scratch following dyno session #1) if nothing else, learning the maths id fun hehehe and yeah - thanks to all who have contributed so far (even if i didnt directly address your points.) ive read this all a few times over the last day or so, and have just been chewing on it before replying. your imput is appreciated - its hard to muster good discussion on stuf like this. oh - also, check here for further discussion: http://pforums.company-hosting.com/forums/showthre ad.php?t=67181367 cheers ed [Report message to a moderator]

	Subject	Poster	Date
	ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	ed_ma61	Mon, 11 October 2004 14:59
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	oldcorollas	Mon, 11 October 2004 15:13
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	ed_ma61	Mon, 11 October 2004 15:16
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	ed_ma61	Mon, 11 October 2004 15:23
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	bbaacchhyy	Mon, 11 October 2004 21:25
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	takai	Mon, 11 October 2004 21:43
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	bbaacchhyy	Mon, 11 October 2004 22:15
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	Steve_Reynolds	Mon, 11 October 2004 23:10
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	gianttomato	Mon, 11 October 2004 23:22
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	Ben Wilson	Tue, 12 October 2004 05:25
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	gianttomato	Wed, 13 October 2004 13:05
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	thechuckster	Wed, 13 October 2004 13:38
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	oldcorollas	Wed, 13 October 2004 13:51
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	ed_ma61	Wed, 13 October 2004 14:45
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	Bill Sherwood	Wed, 13 October 2004 14:48
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	ed_ma61	Wed, 13 October 2004 15:04
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	ed_ma61	Wed, 13 October 2004 14:58
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	Bill Sherwood	Wed, 13 October 2004 15:06
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	Bill Sherwood	Wed, 13 October 2004 15:07
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	ed_ma61	Wed, 13 October 2004 15:30
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	ed_ma61	Wed, 13 October 2004 15:40
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	Bill Sherwood	Wed, 13 October 2004 15:40
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	ed_ma61	Wed, 13 October 2004 15:42
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	Bill Sherwood	Wed, 13 October 2004 15:45
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	ed_ma61	Wed, 13 October 2004 15:50
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	bbaacchhyy	Wed, 13 October 2004 21:36
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	ed_ma61	Thu, 14 October 2004 01:34
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	bbaacchhyy	Thu, 14 October 2004 02:08
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	ed_ma61	Thu, 14 October 2004 02:26
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	moo4AGZETA22	Thu, 14 October 2004 02:49
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	bbaacchhyy	Thu, 14 October 2004 03:09
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	gianttomato	Thu, 14 October 2004 03:52
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	ed_ma61	Thu, 14 October 2004 04:15
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	gianttomato	Thu, 14 October 2004 04:27
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	bbaacchhyy	Thu, 14 October 2004 05:06
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	gianttomato	Thu, 14 October 2004 05:21
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	bbaacchhyy	Thu, 14 October 2004 05:32
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	boxh34d	Thu, 14 October 2004 12:21
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	ed_ma61	Fri, 15 October 2004 00:22
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	justcallmefrank	Fri, 15 October 2004 00:39
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	mrshin	Thu, 14 October 2004 12:54
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	RWDboy	Thu, 14 October 2004 14:51
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	Bill Sherwood	Thu, 14 October 2004 15:17
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	gianttomato	Thu, 14 October 2004 21:25
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	ed_ma61	Thu, 14 October 2004 23:42
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	ed_ma61	Fri, 15 October 2004 00:33
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	ed_ma61	Fri, 15 October 2004 00:46
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	justcallmefrank	Fri, 15 October 2004 00:50
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	ed_ma61	Fri, 15 October 2004 00:51
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	justcallmefrank	Fri, 15 October 2004 00:56
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	justcallmefrank	Fri, 15 October 2004 01:00
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	ed_ma61	Fri, 15 October 2004 02:35
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	SupraPete	Fri, 15 October 2004 02:55
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	SupraPete	Fri, 15 October 2004 02:45
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	ed_ma61	Fri, 15 October 2004 02:59
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	ed_ma61	Fri, 15 October 2004 03:01
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	SupraPete	Fri, 15 October 2004 03:11
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	SupraPete	Fri, 15 October 2004 03:21
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	SupraPete	Fri, 15 October 2004 03:14
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	RWDboy	Fri, 15 October 2004 03:19
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	ed_ma61	Fri, 15 October 2004 03:26
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	SupraPete	Fri, 15 October 2004 03:28
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	ed_ma61	Fri, 15 October 2004 03:35
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	gianttomato	Fri, 15 October 2004 03:55
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	Bill Sherwood	Fri, 15 October 2004 04:44
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	ed_ma61	Fri, 15 October 2004 04:50
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	CelicaRA45	Sat, 16 October 2004 03:38
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	mrshin	Sat, 16 October 2004 13:30
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	Bill Sherwood	Sat, 16 October 2004 13:55
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	mrshin	Sat, 16 October 2004 14:37
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	RWDboy	Sun, 17 October 2004 08:29
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	ed_ma61	Sun, 17 October 2004 10:12
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	RWDboy	Sun, 17 October 2004 11:12
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	ed_ma61	Sun, 17 October 2004 12:13
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	Bill Sherwood	Sun, 17 October 2004 13:19
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	ed_ma61	Sun, 17 October 2004 22:55
	Re: ITBs & Port X-Sectional Areas + Lengths : Your Thoughts....	Bill Sherwood	Mon, 18 October 2004 02:40

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