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whipple noise

  1. O

    New Whipple guy here looking for advice

    I have several cars with centrifugal SCs but I recently bought my first Whipple. I recently bought a 1991 NSX with a Whipple SC. I noticed that it rattles at idle but is quiet at rpm. When you drop it back down to idle ir rattles alot then it settles back down to a smaller rattle when the idle...