Originally posted by downunder
Here's a link on what's required for optimum balance that's written by some TRUE experts on engine design. http://home.wxs.nl/~wakke007/fmv/fmv_3.htm
Don't be put off by the fact it was written in the late 70's for 2.5cc diesel engines. The section on bearings is well worth reading too. Heck, the whole article is worth reading!
If you go back to the very first of the article, you can't help but notice the name of Rob Metkemeijer...an engine builder who is currently setting the world on fire with his racing engines.
Great reading..some of it is a bit dated (cast iron pistons) but a great bit of reading. I wish (ha ha) these guys would write such an extensive article on contemporary engines.
Best piece of technical data I've seen in ages, Downunder..thanks for linking it up.