Matt Bachand Depends on the 6.5 Messages 5,330 Reaction score 29 Location Worcester, MA Jun 6, 2010 #41 Do they rob alot of oil pressure if they spin at "OMG" speeds?
bison Well-Known Member Messages 5,709 Reaction score 184 Location Near Peace River-Alberta Jun 6, 2010 #42 It works with oil pressure alone,there's a valve that closes flow if press falls below 20 or so psi.