At 08:16 PM 3/20/2006, KENMUN@aol.com wrote:
>fot, i hope this question isn't too dumb, but how do you calculate the
>compression ratio?
>my tr3 has an 87mm bore, stock crank & rods and a head with .110" removed
>thanks,
> ken m.
Ken,
Here are the relationships:
CR = swept vol / compressed vol
swept vol = cyl vol + head gasket vol + deck clearance vol + eyebrow vol +
#1 ring vol + comb chamber vol
compressed vol = head gasket vol + deck clearance vol + eyebrow vol + #1
ring vol + comb chamber vol
I have an Excel spreadsheet which makes running "what-if" drills
easy. I'll be glad to send it if you'd like it.
hth
Jim
--
Jim Hassall
Blacksburg VA
jhassall@blacksburg.net
'63 TR4 in autox preparation - 90% finished, 90% to go
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