Hi! In this article ( http://www.hotrod.com/how-to/engine/hrdp-0401-torq... ) i read, that at high rpm, smaller bearing diameters is better than larger, "Some engines aren't happy at high rpm-and never will be. Their bearing diameters are too large, their strokes too long, and their head-flow capacities too poor to really work upstairs." Maybe someone can explain, why larger main bearing diameters is worse than smaller at high rpm's? It's all about centrifugal forces, tangential velocity or what? :)
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