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Manny Forums Junkie Location: Sydney Registered: May 2002	Re: 1.5JZ Thu, 26 February 2004 12:42 At least 3 1.5JZ Soarers on the east coast of Oz that I know of and I've had the pleasure of driving a very well built and Motec run example. Nothing like an extra 500cc capacity to lug around a 1.7 tonne Soarer off boost. I'm not going to get into the 1J -vs- 2J head debate as it's pointless without putting a pair side by side on a flow bench and seeing the results. Both heads were designed in conjunction with Yamaha afaik and both share same valve sizes. If you've ever seen the path of the 2J's rear 2 exhaust ports, you'd agree with me that the 1J has a more direct path for exhaust flow. If you were to go to town on both with a die grinder, I know which one I'd put my money on - you can easily enlarge a port's ID but you can't straighten an s bend cast into the head amongst water/oil galleries. Adi Compression ratio is the critical aspect in selecting the head gasket between the 1JZGTE head and 2JZGTE block eg using a 2JZGTE gasket with stock pistons and stock chambers will apparently reault in a 9:1 comp ratio Track down a guy called Orin Biven from Texas on some Supra lists/forums - he owns a 600HP 1.5JZ JZA70, one of which he's personally built up. A 1.5JZ should be a certain way of getting those hybrids spooling 1000rpm sooner... [Updated on: Thu, 26 February 2004 13:01] [Report message to a moderator]

	Subject	Poster	Date
	1.5JZ	HedgehogSandwich	Wed, 25 February 2004 16:45
	Re: 1.5JZ	1JZ.747	Wed, 25 February 2004 22:56
	Re: 1.5JZ	RollaGTi	Thu, 26 February 2004 07:21
	Re: 1.5JZ	ed_ma61	Thu, 26 February 2004 07:24
	Re: 1.5JZ	Chris Davey	Thu, 26 February 2004 09:25
	Re: 1.5JZ	onejayzed	Thu, 26 February 2004 09:40
	Re: 1.5JZ	Celia-Sue	Thu, 26 February 2004 09:40
	Re: 1.5JZ	onejayzed	Thu, 26 February 2004 09:51
	Re: 1.5JZ	ed_ma61	Thu, 26 February 2004 09:43
	Re: 1.5JZ	wastegate	Thu, 26 February 2004 11:59
	Re: 1.5JZ	drk_awd	Thu, 26 February 2004 12:10
	Re: 1.5JZ	Manny	Thu, 26 February 2004 12:42
	Re: 1.5JZ	V8_MA61	Thu, 26 February 2004 09:46
	Re: 1.5JZ	FKN16V	Thu, 26 February 2004 12:32
	Re: 1.5JZ	7M-Brisbane	Thu, 26 February 2004 12:40
	Re: 1.5JZ	ed_ma61	Thu, 26 February 2004 21:43
	Re: 1.5JZ	lumpy	Thu, 26 February 2004 22:25
	Re: 1.5JZ	1JZ.747	Thu, 26 February 2004 22:54
	Re: 1.5JZ	ed_ma61	Thu, 26 February 2004 23:10
	Re: 1.5JZ	1JZ.747	Thu, 26 February 2004 23:18
	Re: 1.5JZ	ed_ma61	Thu, 26 February 2004 23:20
	Re: 1.5JZ	1JZ.747	Thu, 26 February 2004 23:24
	Re: 1.5JZ	ed_ma61	Thu, 26 February 2004 23:39
	Re: 1.5JZ	onejayzed	Mon, 01 March 2004 23:52
	Re: 1.5JZ	HedgehogSandwich	Fri, 27 February 2004 01:07
	Re: 1.5JZ	1JZ.747	Fri, 27 February 2004 01:08
	Re: 1.5JZ	1JZ.747	Fri, 27 February 2004 01:08
	Re: 1.5JZ	ed_ma61	Fri, 27 February 2004 01:26
	Re: 1.5JZ	wagonist	Fri, 27 February 2004 01:55
	Re: 1.5JZ	1JZ.747	Fri, 27 February 2004 03:12
	Re: 1.5JZ	wagonist	Fri, 27 February 2004 04:27
	Re: 1.5JZ	speakafreaka	Mon, 01 March 2004 12:05
	Re: 1.5JZ	Stenno	Mon, 01 March 2004 12:24
	Re: 1.5JZ	1JZ.747	Mon, 01 March 2004 22:50
	Re: 1.5JZ	n2734222	Tue, 02 March 2004 06:59
	Re: 1.5JZ	Norbie	Tue, 02 March 2004 22:49
	Re: 1.5JZ	justcallmefrank	Tue, 02 March 2004 08:46

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