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Old 03-23-2015, 12:18 PM   #134
cjd
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Quote:
Originally Posted by stugray View Post
I wasnt arguing any merits to therir product.
I was only commenting because (IF you believe that they did the tests) they have proof that:
1 - the stock pulley IS A HARMONIC DAMPENER.
2 - Installing a LWCP brings the harmonics down to where they have an effect in the stock RPM range.
This is PRECISELY what we have been trying to tell the "LWCPs are the BOMB" crowd.
Actually, I see no direct evidence of (1), though I understand how it might be inferred. That's not to say that it isn't tuned to shift a resonance of course, just that without similar charts for stock there's no way to say exactly how it performs.

(2) is clearly suggested by the graphs they provide.

I'm not sure what to make of the 78Hz data, nor what's within acceptable operating spec for the normal life expectancy of this engine.
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