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Toymods » Tech & Conversions » Head flow and flame propegation issues in turbocharged cars Show: Today's Posts  :: Show Polls  Email to friend

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oldcorollas Forums Junkie Location: Kita-Ku, Sapporo, Japan Registered: January 2003	Re: Head flow and flame propegation issues in turbocharged cars Mon, 01 November 2004 09:04 justcallmefrank wrote on Mon, 01 November 2004 18:34 I was under the assumption they were pretty much lineball for torque production with a normal 2l lower-revving engine before they overtook it at the changeover point, not that they were underperformed before this. aiui, a 'very efficient' 2L motor will make close to 200Nm of torque. whether it makes it low or high in the rev range depends on cams and port velocity etc etc... it's not like the S2000 motor makes 200Nm in mid range then magically gets 230Nm up high... same with the 2ZZ-GE motor... the great thing about these motors is that they are making peak torque around 6500-7000rpm, so you can take advatage of gearing etc... but by making their torque high in the rev range, they lose it down low.. even with the fancy cam bits, they will still have poorer port velocity down low than a motor designed for that lower rpm... then again, maybe i have it ass about anyone feel like finding an S2000 or 2ZZGE dyno graph where they are making 100Nm/L in the mid range? the Hemis have similar CC to the 2TG? possibly it was just better port flow, and 'pre-ignition' minimisation.. as far as CC's go... from bad to good.. 1. pre-igniting due to shit deisng with sharp edges and heat retention. 2. no pre-ignition points, but no squish either. 3. lots of well placed squish areas. fwiw, the K motors have at least a third of their combustion chamber as squish area, opposite the spark plug, but that doesn't make them a good head Cya,S tewart [Report message to a moderator]

	Subject	Poster	Date
	Head flow and flame propegation issues in turbocharged cars	Shraka	Wed, 27 October 2004 02:14
	Re: Head flow and flame propegation issues in turbocharged cars	Bill Sherwood	Wed, 27 October 2004 02:21
	Re: Head flow and flame propegation issues in turbocharged cars	Shraka	Wed, 27 October 2004 02:30
	Re: Head flow and flame propegation issues in turbocharged cars	oldcorollas	Wed, 27 October 2004 02:44
	Re: Head flow and flame propegation issues in turbocharged cars	oldcorollas	Wed, 27 October 2004 02:50
	Re: Head flow and flame propegation issues in turbocharged cars	Bill Sherwood	Wed, 27 October 2004 02:56
	Re: Head flow and flame propegation issues in turbocharged cars	oldcorollas	Wed, 27 October 2004 02:58
	Re: Head flow and flame propegation issues in turbocharged cars	Bill Sherwood	Wed, 27 October 2004 02:43
	Re: Head flow and flame propegation issues in turbocharged cars	Shraka	Wed, 27 October 2004 02:57
	Re: Head flow and flame propegation issues in turbocharged cars	Bill Sherwood	Wed, 27 October 2004 03:06
	Re: Head flow and flame propegation issues in turbocharged cars	Bill Sherwood	Wed, 27 October 2004 02:49
	Re: Head flow and flame propegation issues in turbocharged cars	Shraka	Wed, 27 October 2004 03:39
	Re: Head flow and flame propegation issues in turbocharged cars	oldcorollas	Wed, 27 October 2004 03:49
	Re: Head flow and flame propegation issues in turbocharged cars	Bill Sherwood	Wed, 27 October 2004 04:00
	Re: Head flow and flame propegation issues in turbocharged cars	Shraka	Wed, 27 October 2004 04:20
	Re: Head flow and flame propegation issues in turbocharged cars	Joshstix	Wed, 27 October 2004 04:28
	Re: Head flow and flame propegation issues in turbocharged cars	Shraka	Wed, 27 October 2004 06:29
	Re: Head flow and flame propegation issues in turbocharged cars	indigoid	Thu, 28 October 2004 11:40
	Re: Head flow and flame propegation issues in turbocharged cars	Shraka	Fri, 29 October 2004 03:23
	Re: Head flow and flame propegation issues in turbocharged cars	da_horse	Wed, 27 October 2004 20:34
	Re: Head flow and flame propegation issues in turbocharged cars	Norbie	Thu, 28 October 2004 01:49
	Re: Head flow and flame propegation issues in turbocharged cars	da_horse	Thu, 28 October 2004 11:24
	Re: Head flow and flame propegation issues in turbocharged cars	rokusan	Thu, 28 October 2004 12:04
	Re: Head flow and flame propegation issues in turbocharged cars	takai	Fri, 29 October 2004 12:41
	Re: Head flow and flame propegation issues in turbocharged cars	indigoid	Fri, 29 October 2004 12:44
	Re: Head flow and flame propegation issues in turbocharged cars	RWDboy	Fri, 29 October 2004 14:25
	Re: Head flow and flame propegation issues in turbocharged cars	M.W.P.	Fri, 29 October 2004 16:44
	Re: Head flow and flame propegation issues in turbocharged cars	RWDboy	Sat, 30 October 2004 03:59
	Re: Head flow and flame propegation issues in turbocharged cars	Shraka	Mon, 01 November 2004 03:15
	Re: Head flow and flame propegation issues in turbocharged cars	RWDboy	Mon, 01 November 2004 03:54
	Re: Head flow and flame propegation issues in turbocharged cars	Joshstix	Mon, 01 November 2004 06:04
	Re: Head flow and flame propegation issues in turbocharged cars	Shraka	Mon, 01 November 2004 06:15
	Re: Head flow and flame propegation issues in turbocharged cars	oldcorollas	Mon, 01 November 2004 06:18
	Re: Head flow and flame propegation issues in turbocharged cars	justcallmefrank	Mon, 01 November 2004 06:19
	Re: Head flow and flame propegation issues in turbocharged cars	Joshstix	Mon, 01 November 2004 06:21
	Re: Head flow and flame propegation issues in turbocharged cars	oldcorollas	Mon, 01 November 2004 06:48
	Re: Head flow and flame propegation issues in turbocharged cars	justcallmefrank	Mon, 01 November 2004 07:34
	Re: Head flow and flame propegation issues in turbocharged cars	Mr DOHC	Mon, 01 November 2004 08:28
	Re: Head flow and flame propegation issues in turbocharged cars	Shraka	Mon, 01 November 2004 09:26
	Re: Head flow and flame propegation issues in turbocharged cars	oldcorollas	Mon, 01 November 2004 09:04
	Re: Head flow and flame propegation issues in turbocharged cars	justcallmefrank	Mon, 01 November 2004 09:07
	Re: Head flow and flame propegation issues in turbocharged cars	Shraka	Mon, 01 November 2004 09:27
	Re: Head flow and flame propegation issues in turbocharged cars	justcallmefrank	Mon, 01 November 2004 09:32
	Re: Head flow and flame propegation issues in turbocharged cars	RWDboy	Mon, 01 November 2004 13:08
	Re: Head flow and flame propegation issues in turbocharged cars	Shraka	Mon, 01 November 2004 13:13
	Re: Head flow and flame propegation issues in turbocharged cars	earlyrolla	Mon, 01 November 2004 14:38

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