crank pulleys??

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crank pulleys??

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crank pulleys?? - 10/27/2007 11:46:57 AM

Evo2nv

Posts: 132
Joined: 9/7/2007
Status: offline

how safe are the lightened underdrive crank pulleys ? Is the evo motor well balanced enough to run a lightened crank pulley with out ruining the crank or crank bearings. Perrin and megan racing , both state that all of that is just a myth and the stock harmonic dampener is just to reduce interior noise and vibrations . I ran a aem lightweight underdrive pulley kit on my 1999 4g63 eclipse and never had any problem and picked up about a noticable gain and dyno proven to put out an extra 10whp. So let me know what ya'll think.