Quote Originally Posted by Five*Star*
Most all new engines these days are balanced pretty well straight from the factory. Mainly because of better manufacturing.
On a pure race engine, everything needs to be taken into consideration, but on most street motors some things are not as important as others. Like I had been saying above, I would probably be more worried about rod angle, compression, and detonation; over R/S ratio. R/S ratio would be more heavily considered in an engine that lives in the higher rpms all day long.


If piston speed was so import to longivity, then the Formula 1 guys probably would'nt be running their motors as high as 20,000 rpms.
The bold part: I can't tell if your agreeing or disagreeing with what you quoted from me; or if you were adding to it or not (speaking of a h22 besides the type-s and the euro-r h22 and h23 because those rev to 8k). Everything else I totally agree with what your saying.