[Amc-list] 232 combustion chamber

["Bruce Hevner" <scramblr@xxxxxxxxxxx>]

Smokey Yunick did some testing on squish. Closer the better, general rule is
minimum .035, 6000 or less and steel rods (I have run some as low as .030,
less than 5000 street motor). Advantages go away quickly with more than
.060. Add more for Aluminum rods (about .020 or more if I remember right) or
higher RPM (.040).
 
 Too bad he's not around today to test the "grooving" THEORY. I call it
theory because I have YET to see any back to back dyno tests from an
independent source to validate some of the WILD claims I have seen for it.

The Keith Black catalog used to have an excellent description on the squish
effect. Their web site seems to be down right now (kb-silvolite.com). Had a
comparison of static ratio for squish and non squish engines.

Remember,, allowable static ratio is affected by cam timing and combustion
chamber design. This is where we get into "cranking compression".

Read Sir Harry Ricardo's book "Combustion Chamber Process"
http://en.wikipedia.org/wiki/Harry_Ricardo
THAT guy was WAY ahead in his thinking!!!

But HEY,,, that's just ME!
Bruce Hevner

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