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ed_ma61 Forums Junkie Location: Lost in the K hole Registered: May 2002	Re: Better motor to hot-rod? Fri, 16 July 2004 18:34 the difference between supra cams (acis manifold) and the cressida cams really is 4/5ths of fuck all. infact i suspect the lift and duration are identical, just the lobe separation angle is different (by somthing in the realm of 3-4deg)... ...to describe them as a 'low rpm' vs 'sportier' cam is completely crap. youd best consider them the same cam for practical purposes. theyre just tuned to the intake slightly differently. as for the 'split' ports - these are acttually better for lower rpm use, the cressida ports with the blunt divider offer better total flow, and add turbulence for emissions and economy. this blunt divider is the better modified head for big output numbers... (these conclusions btw - came from an extensive design and flow discussion on PF's (GTS_Boy) and is not supported by actual flowbench data in modified and unmodified state) and my engine, in current state of crapped out ring and dodgy tune: id be banking on about 250hp @ flywheel. gtech gives me 198hp at wheels. dyno showed ~101kw @ 38-4000rpm before shutting down due to pinging. i dont really care any more to be honest. the war is over...time to move on to bigger and better things [Report message to a moderator]

	Subject	Poster	Date
	Better motor to hot-rod?	V8_MA61	Wed, 14 July 2004 07:59
	Re: Better motor to hot-rod?	wilbo666	Wed, 14 July 2004 08:18
	Re: Better motor to hot-rod?	V8_MA61	Wed, 14 July 2004 08:26
	Re: Better motor to hot-rod?	CrUZsida	Wed, 14 July 2004 08:53
	Re: Better motor to hot-rod?	thechuckster	Wed, 14 July 2004 08:56
	Re: Better motor to hot-rod?	V8_MA61	Wed, 14 July 2004 08:33
	Re: Better motor to hot-rod?	V8_MA61	Wed, 14 July 2004 12:52
	Re: Better motor to hot-rod?	Joshstix	Thu, 15 July 2004 01:02
	Re: Better motor to hot-rod?	Norbie	Wed, 14 July 2004 23:14
	Re: Better motor to hot-rod?	V8_MA61	Thu, 15 July 2004 07:59
	Re: Better motor to hot-rod?	Norbie	Thu, 15 July 2004 23:56
	Re: Better motor to hot-rod?	V8_MA61	Fri, 16 July 2004 15:04
	Re: Better motor to hot-rod?	chrisss	Fri, 16 July 2004 16:49
	Re: Better motor to hot-rod?	V8_MA61	Sat, 17 July 2004 02:09
	Re: Better motor to hot-rod?	ed_ma61	Fri, 16 July 2004 18:34
	Re: Better motor to hot-rod?	Jag7799	Sat, 17 July 2004 00:42
	Re: Better motor to hot-rod?	mrshin	Sat, 17 July 2004 07:53
	Re: Better motor to hot-rod?	V8_MA61	Sat, 17 July 2004 09:38
	Re: Better motor to hot-rod?	wilbo666	Sun, 18 July 2004 04:07
	Re: Better motor to hot-rod?	V8_MA61	Sun, 18 July 2004 13:25

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