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Toymods » Tech & Conversions » anyone considered changing their turbo/SC to Miller Cycle? Show: Today's Posts  :: Show Polls  Email to friend

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YelloRolla Forums Junkie Location: On your mum! Registered: May 2002	Re: anyone considered changing their turbo/SC to Miller Cycle? Wed, 18 May 2005 07:04 M.W.P. wrote on Wed, 18 May 2005 15:39 oldcorollas wrote on Wed, 18 May 2005 00:02 well, it's basically to reduce pumping losses that are incurred in your standard otto cycle engine, so you get better performance from a smaller motor, AND better fuel economy (like 10-15%?)... think of it as Otto-optimisation Strange. The article talks about using a high comp engine, but closing the inlet cams late to artificially lower compression reducing pumping losses. Not by running "true" low compression. I wonder what difference it makes.... Actually, whats the difference between what you are suggesting oldcorollas over what is the lowering of compression and increase of boost on normal hi-po engines? Actually, "artificially" is a very poor choice of words for this. It refers to reducing the dynamic or true compression and there is nothing artificial about that. The immediate differences that come to mind are better rod angularity (better geometry to make the squeeze), and a quicker rate of compression (more efficient compression) and lower compression temp (adiabatic efficiency), the article also suggests lower ignition temperatures. Lower comp and higher boost aims to push the torque curve further up the rev range, the idea of the method described is to make better power in the realm where most engines live. This is my understanding and I look forward to learning more as this thread strings along. P.S Is there an echo in here? I seem to recall writing here somewhere before about later closing of the intake valve to reduce the dynamic comp? [Report message to a moderator]

	Subject	Poster	Date
	anyone considered changing their turbo/SC to Miller Cycle?	oldcorollas	Tue, 17 May 2005 01:17
	Re: anyone considered changing their turbo/SC to Miller Cycle?	EVOSTi	Tue, 17 May 2005 03:29
	Re: anyone considered changing their turbo/SC to Miller Cycle?	oldcorollas	Tue, 17 May 2005 03:33
	Re: anyone considered changing their turbo/SC to Miller Cycle?	NVD05X	Tue, 17 May 2005 11:16
	Re: anyone considered changing their turbo/SC to Miller Cycle?	EVOSTi	Tue, 17 May 2005 11:24
	Re: anyone considered changing their turbo/SC to Miller Cycle?	thechuckster	Tue, 17 May 2005 13:29
	Re: anyone considered changing their turbo/SC to Miller Cycle?	oldcorollas	Tue, 17 May 2005 14:16
	Re: anyone considered changing their turbo/SC to Miller Cycle?	justcallmefrank	Tue, 17 May 2005 14:13
	Re: anyone considered changing their turbo/SC to Miller Cycle?	justcallmefrank	Tue, 17 May 2005 14:28
	Re: anyone considered changing their turbo/SC to Miller Cycle?	oldcorollas	Tue, 17 May 2005 14:32
	Re: anyone considered changing their turbo/SC to Miller Cycle?	M.W.P.	Wed, 18 May 2005 05:39
	Re: anyone considered changing their turbo/SC to Miller Cycle?	YelloRolla	Wed, 18 May 2005 07:04
	Re: anyone considered changing their turbo/SC to Miller Cycle?	Norbie	Tue, 17 May 2005 23:09
	Re: anyone considered changing their turbo/SC to Miller Cycle?	justcallmefrank	Wed, 18 May 2005 03:03
	Re: anyone considered changing their turbo/SC to Miller Cycle?	rob_RA40	Tue, 17 May 2005 23:14
	Re: anyone considered changing their turbo/SC to Miller Cycle?	Norbie	Wed, 18 May 2005 03:49
	Re: anyone considered changing their turbo/SC to Miller Cycle?	justcallmefrank	Wed, 18 May 2005 03:54
	Re: anyone considered changing their turbo/SC to Miller Cycle?	Norbie	Wed, 18 May 2005 09:43
	Re: anyone considered changing their turbo/SC to Miller Cycle?	oldcorollas	Wed, 18 May 2005 11:09
	Re: anyone considered changing their turbo/SC to Miller Cycle?	Dominic	Wed, 18 May 2005 14:18
	Re: anyone considered changing their turbo/SC to Miller Cycle?	YelloRolla	Fri, 20 May 2005 06:35
	Re: anyone considered changing their turbo/SC to Miller Cycle?	Gleno28	Sat, 21 May 2005 05:32
	Re: anyone considered changing their turbo/SC to Miller Cycle?	oldcorollas	Sat, 21 May 2005 08:00
	Re: anyone considered changing their turbo/SC to Miller Cycle?	Gleno28	Sun, 22 May 2005 01:00
	Re: anyone considered changing their turbo/SC to Miller Cycle?	Norbie	Sun, 22 May 2005 02:21
	Re: anyone considered changing their turbo/SC to Miller Cycle?	justcallmefrank	Sun, 22 May 2005 08:59
	Re: anyone considered changing their turbo/SC to Miller Cycle?	YelloRolla	Mon, 23 May 2005 07:15
	Re: anyone considered changing their turbo/SC to Miller Cycle?	justcallmefrank	Mon, 23 May 2005 07:17

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