Quote:
Originally Posted by 1930marie
The M.E.'s and the mechanical experienced expressed my anticipated response and makes sense mathmatically. A lightened flywheel coupled with a "damper" and balanced crank I believe offers an advantage IF you have a concern for higher RPM's or sustained 55-65 mph of operation. A rebuilt stock motor just went back in my car because that's what I grew uo with and I know I'm going to get another 40-50k out of it. By the way, what does a damper look like installed? I have not seen that one yet. Its all fun stuff. I enjoy seeing the many ideas we come up with to keep our cars on the road.
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If an engine is out of balance, it is out of balance at all rpm from one to infinity, not just at 55-65 mph.
You feel the vibration at resonance or harmonics of resonance but the vibration is there at all other rpm's, just to a lessor degree.
Even if you only did parade driving at idle, an engine would benefit from balancing and last longer.
I have a pic of a 12 lb. big block Chev damper installed on a B race engine but can't post it. Probably because the website certificate has not been renewed.