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Total 5 documents matching your query.

1. compression Ratios (score: 1): Author: PG <britishcars@shaw.ca>; Date: Wed, 14 Feb 2007 18:12:34 -0800; List, hear is some food to dwell on: I was reading some articles last evening and a question popped to mind. Why is it that the Porsche 2007 911S has a compression ratio of 11:8 to 1 and yet does not; /html/healeys/2007-02/msg00334.html (7,154 bytes)
2. RE: compression Ratios (score: 1): Author: "Michael Salter" <msalter@precisionsportscar.com>; Date: Thu, 15 Feb 2007 18:58:22 +1300; My guess would be a combination of combustion chamber design and electronic controls. Basically the ignition is retarded at times when the full induction charge would normally result in detonation i; /html/healeys/2007-02/msg00336.html (7,943 bytes)
3. Re: compression Ratios (score: 1): Author: Healeyguy@aol.com; Date: Thu, 15 Feb 2007 02:23:13 EST; Its all in the electronic engine management (computer). Aloha Perry; /html/healeys/2007-02/msg00338.html (6,589 bytes)
4. compression Ratios (score: 1): Author: olin.brimberry@talecris.com; Date: Thu, 15 Feb 2007 10:35:49 -0500; For the older cars, they add an extra spark plug. Twin plugging is very common in the Porsche street/race cars with CR greater than 10:1. Induction and cam overlap may have some influence also. Olin; /html/healeys/2007-02/msg00342.html (7,689 bytes)
5. RE: compression Ratios (score: 1): Author: mike brooks <hypercubic@yahoo.co.uk>; Date: Thu, 15 Feb 2007 23:53:43 -0800 (PST); It's also the head material, aluminium on the Porsche and cast iron on the Healey. I believe aluminium conducts the heat away better than cast iron. Mike Brooks '56 BN2 Milano Italy Paul, My guess wo; /html/healeys/2007-02/msg00367.html (8,082 bytes)

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