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On 21 Jan 99, at 9:09, Theo B wrote: > Okay I understand that. I am wondering how putting shims under the cylinders will lower the > CR. In my just got off a 14 hour work day brain it seems that shims would just move the jugs > further away from the case but not increase the compression chamber volume. > > Well the coffee just kicked in. It would be likened to shortening the stroke, huh. > I gotta get better hours!! Well, it doesn't really change the stroke, since the displacement doesn't change, but it does do the part that I think you were thinking about, in that it keeps the piston from getting quite so far up toward the head thus leaving more volume in the head at TDC. Jim - ******************************* Jim Adney, jadney@vwtype3.org Madison, Wisconsin, USA ******************************* ------------------------------------------------------------------- Too much? Digest! mailto:type3-d-request@vwtype3.org Subj=subscribe