View Single Post
mark houghton mark houghton is offline
Registered User
mark houghton's Avatar
Join Date: Jul 2008
Location: Central Washington State
Posts: 3,860
C = pie x D (circumferance = 3.1416 times diameter)

So, if your pulley is 5 3/8" diam, then 3.1416 x 5.375 says that the circumferance is 16.88 inches....or 429 mm. Divide that by 360, and every 1.19mm around the circumferance represents 1 degree.
Mark H. 1987 930, GP White, Wevo shifter, Borla exhaust, stock everything else. The result of a massive Pelicanite good will fire recovery effort. Truely an open book, ready for the slippery slopes to modification.
Old 04-23-2013, 03:01 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #53 (permalink)