I know this is a very basic question but I don't understand how
compression ratio is determined. For example, our R16 engines are 9:1,
but there was a truck called the "Homer" that also uses the R16 engine
but is only 8:1 (and has lower hp/torque, also single carb).
I assume this means that on the compression stroke, the air is
compressed to 1/9th (Roadster) or 1/8th (Homer) its original volume.
Since both vehicles have the same bore and stroke, what makes the
compression ratio lower on the truck?
=====
Adam
'70 1600 SPL311-28181
http://www.picturetrail.com/abend
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