Quote:
Originally Posted by DBFIU
Hello, I am a Mechanical Engineer. I do not work for Honda so take my opinions as they come.
I understand Freerides point that the stock pulley has the rubber ring for a reason, to dampen, reduce NVH. I personally don't think that by replacing that rotational device by a solid pulley will result in any great engine damage. In my humble opinion it is safe to say that the engine will probably fail due to normal causes (wear and tear) before the pulley's cause.
In any case, looking at the system as a whole. It is safe to say that through the belt, clutch, bushings, engine mounts etc... there is enough damping.
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I'm sorta with you here...let's not forget the balance shafts in the oil pan on the k20z3...while they're annoyingly obviously at idle, the few horses they're sucking off the motor go into reducing vibrations at speed. Changing the crank pulley to a simple solid metalic unit is an error if you plan on keeping the car long term. Why do you think honda built theirs the way they did? Because they're rocket scientists...literally. If you're looking for performance and precision dampening I recommend ...
Fluidampr