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SVT Shelby GT500
Lower pulley?
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<blockquote data-quote="F8L SN8K" data-source="post: 10992117" data-attributes="member: 50367"><p>It's all in the harmonics. The gears are brittle powdered metal and are very sensitive to increased vibrations due to decreased dampening. The modular engine family are internally balanced but the flywheel and Harmonic dampener("balancer") play an important role in controlling harmonics/vibrations in the torsional rotation of the crank shaft. This is why a high quality harmonic dampener is a must! As it also needs to be installed correctly also. Upgrading to billet oil pump gears adds robustness to them but come at a cost to a slight loss in pumping effeincy due to not being able to be produced to as tight of tolerances as the powdered metal gears.</p></blockquote><p></p>
[QUOTE="F8L SN8K, post: 10992117, member: 50367"] It's all in the harmonics. The gears are brittle powdered metal and are very sensitive to increased vibrations due to decreased dampening. The modular engine family are internally balanced but the flywheel and Harmonic dampener("balancer") play an important role in controlling harmonics/vibrations in the torsional rotation of the crank shaft. This is why a high quality harmonic dampener is a must! As it also needs to be installed correctly also. Upgrading to billet oil pump gears adds robustness to them but come at a cost to a slight loss in pumping effeincy due to not being able to be produced to as tight of tolerances as the powdered metal gears. [/QUOTE]
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SVT Shelby GT500
Lower pulley?
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