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  1. GN7 On the Dyno
    well just found out last night that my new Shafiroff mill has low tension oil Rings. this is new area for me? i am told i need a Vacum pump with low tension rings,well if you ask any racer they all say you need one they help make power and better seal,Blaahhh blaaah. this motor will not be...
  2. GN7 On the Dyno
    So I've always wondered...what's the difference between a standard tension ring with no gas ports, and a low tension ring that's in a ported piston? In a static condition, the low tension rings shine, with far less drag, but I've always wondered in a dynamic condition, do they actually have less...
  3. V-Drives
    i have the pull springs from rex marine. i have all the brackets on. my question is, how do i tension the springs? i had 2 buddies over yesterday trying to pull that SOB. just wasnt working. thanks in advance
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