08-10-2018, 08:28 PM
(30-09-2018, 02:39 AM)Tony Press Wrote: The standard Compression Ratios seem to be
1923-1933 4.8 (or 4.9) to 1
1933-1936 5.2 ? to 1
Having observed the depths of the cavities of the early LC head for the priming arrangements, does the increase in compression ratio essentially come down to the effects of their removal? I didn't think they went on as long as 1933...