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ed_ma61 Forums Junkie Location: Lost in the K hole Registered: May 2002	7MGE Compression Ratio - How High ?? Mon, 28 July 2003 00:43 Its descision time... Ive done the dummy build, checked all my clearances, and have caculated how much material can come off here and there in order to get my static compression up. Stock compression ratio is 9.2:1 and it looks like 11:1 is very achieveable (even a little higher), but im getting a tad worried about how smart an idea 11:1 is... Its running STOCK cams (~256deg flat ), and as such, im a little worried about what kind of cranking pressures im going to get. fwiw: its a pent roof 4v chamber with 2 decent sized quench pads. piston head squish clearance will be 0.035". the combustion chambers and piston domes have been polished, all the machined edges have been nicely radiused, and ill only ever be running Mobil 8000 or BP ultimate. I'd like to run a decent wad of timing (+20?) and there may be a water injection system runnig on it (which im yet to decide how to trigger...) how high a static compression ratio do you think i should go here? is 11:1 with the stock cam going to push it into obscene dynamic cranking pressures?? cheers ed [Report message to a moderator]

	Subject	Poster	Date
	7MGE Compression Ratio - How High ??	ed_ma61	Mon, 28 July 2003 00:43
	Re: 7MGE Compression Ratio - How High ??	mr_mcfarlane	Mon, 28 July 2003 00:57
	Re: 7MGE Compression Ratio - How High ??	justcallmefrank	Mon, 28 July 2003 00:59
	Re: 7MGE Compression Ratio - How High ??	ed_ma61	Mon, 28 July 2003 02:41
	Re: 7MGE Compression Ratio - How High ??	justcallmefrank	Mon, 28 July 2003 02:47
	Re: 7MGE Compression Ratio - How High ??	mr_mcfarlane	Mon, 28 July 2003 01:06
	Re: 7MGE Compression Ratio - How High ??	rob_RA40	Mon, 28 July 2003 01:13
	Re: 7MGE Compression Ratio - How High ??	ed_ma61	Mon, 28 July 2003 03:00
	Re: 7MGE Compression Ratio - How High ??	oldcorollas	Mon, 28 July 2003 04:10
	Re: 7MGE Compression Ratio - How High ??	ed_ma61	Mon, 28 July 2003 04:01
	Re: 7MGE Compression Ratio - How High ??	oldcorollas	Mon, 28 July 2003 04:19
	Re: 7MGE Compression Ratio - How High ??	ed_ma61	Mon, 28 July 2003 04:27
	Re: 7MGE Compression Ratio - How High ??	oldcorollas	Mon, 28 July 2003 04:46
	Re: 7MGE Compression Ratio - How High ??	BlackSupra	Mon, 28 July 2003 06:47
	Re: 7MGE Compression Ratio - How High ??	ed_ma61	Mon, 28 July 2003 08:20
	Re: 7MGE Compression Ratio - How High ??	ed_ma61	Mon, 28 July 2003 08:25

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