Unless I'm missing something here, aren't you confusing "compression ratio"
(a mathematical relationship of two volumes) with "compression pressure"?
John Deikis
>>Date: Thu, 1 Nov 2001 15:51:12 -0800 (PST)
>>From: Ron Soave <soavero@yahoo.com>
>>Subject: Re: How Much Compression Is Too Much?
- --- frogeye <frogeye@swcp.com> wrote:
> 11.5 x 17(or whatever atmospheric pressure is at
> your locale) =195.5 It does
> not compute. Check your gauge.
>>Check the gauge, but again, CR x atmospheric pressure
IS NOT WHAT YOU WILL SEE. Because the air is
compressed in a constant volume, it heats up, tries to
expand (but it can't), so the pressure in the cylinder
increases, and the pressure read is much higher than
CR x ATM. If heat were not lost through the metal in
the engine, it would be way higher still.
=====
Ron Soave
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