- 1. Compression preasures (score: 1)
- Author: Robert Sexson <rsexson@excite.com>
- Date: Sun, 13 Aug 2000 16:47:42 -0700 (PDT)
- I was looking through my notes and noticed that the compresson preasures were 155--150--150--150 [cold] on my overhauled engine. It is a 74.5 low compression engine. My manual indicates that the prea
- /html/mgs/2000-08/msg00780.html (6,998 bytes)
- 2. Re: Compression preasures (score: 1)
- Author: "Lawrie Alexander" <Lawrie@britcars.com>
- Date: Sun, 13 Aug 2000 20:57:24 -0700
- What this means, Robert, is that the overhaul on your engine has resulted in an increase in compression ratio - probably because you fitted oversize (or less dished) pistons and had the head surfaced
- /html/mgs/2000-08/msg00804.html (7,923 bytes)
- 3. RE: Compression preasures (score: 1)
- Author: jon.arikstad@merkantildata.no
- Date: Mon, 14 Aug 2000 11:33:30 +0200
- How do you calculate this. My 'compresson preasures' are 188 ! Jon Arikstad 1970 MGB GT
- /html/mgs/2000-08/msg00807.html (6,942 bytes)
- 4. Re: Compression preasures (score: 1)
- Author: "Lawrie Alexander" <Lawrie@britcars.com>
- Date: Mon, 14 Aug 2000 08:01:41 -0700
- I have no mathematical formula, I'm afraid. However, experience has shown that 160 lbs cranking pressure is found in engines that have 9 to 1 compression. Your 188 pounds cranking pressure suggests
- /html/mgs/2000-08/msg00816.html (8,285 bytes)
- 5. Re: Compression preasures (score: 1)
- Author: "Dave Wood" <djw69@idt.net>
- Date: Mon, 14 Aug 2000 10:26:37 -0700
- My 1972 workshop manual gives MG compression ratios and pressures for 8.0:1 at 130 lbs/sq in and 8.8:1 at 160 lbs/sq in. Compression ratios and pressures don't really relate to any simple formula, b
- /html/mgs/2000-08/msg00826.html (7,775 bytes)
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