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Cobra Forums
2013-14 Shelby GT500
OPG + Sprocket
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<blockquote data-quote="Jam421" data-source="post: 16374466" data-attributes="member: 110985"><p>Okay...I called Ford Racing Tech line. The words used on the cause of an OPG beakage was </p><p>"uncontrolled torsional vibration" where under certain extreme conditions the crankshaft vibrates beyond the tight clearances or tolerances effecting the OPG or sprocket. </p><p>The tech could not specify in accordance to HP as the cause but power mods, pulley changes & hard driving can both contribute to the vibrational surge. What I was told was it could be good insurance with cars used for drag racing or even low roll racing where a launch or stab sends the sudden vibration. SOOooo...still has me spinning <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" />->) ...but perhaps it's a good thing to consider this season.</p></blockquote><p></p>
[QUOTE="Jam421, post: 16374466, member: 110985"] Okay...I called Ford Racing Tech line. The words used on the cause of an OPG beakage was "uncontrolled torsional vibration" where under certain extreme conditions the crankshaft vibrates beyond the tight clearances or tolerances effecting the OPG or sprocket. The tech could not specify in accordance to HP as the cause but power mods, pulley changes & hard driving can both contribute to the vibrational surge. What I was told was it could be good insurance with cars used for drag racing or even low roll racing where a launch or stab sends the sudden vibration. SOOooo...still has me spinning (:->) ...but perhaps it's a good thing to consider this season. [/QUOTE]
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2013-14 Shelby GT500
OPG + Sprocket
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