Drysump/Turbo

[Bruce Plecan]

One of the things I've never done is plumb a street car for
a dry sump.  There does seem to be some concern amoungst
some wheither gerotor, or spur gear is best, amongst some
engine builders.  Some of the topics were
  Spur more "forgiving" for particle matter
  Gerotor most likely to "freeze" from particle matter.
  Being multistaged more likely to suffer from the above, and
     mysteriouly pitch a belt.
  I'd seriously consider an "accusump" for pre-oiling the system.
  Been years but at one time recall a series of bearing failures
    on a developement engine that turned out to be a priming
    problem..
  One big advantage is being able to "over-rate" the scavege
    section, and actually draw a vacuum in the crankcase, which
    helps the ring seal.  
HTH  Bruce     Win Friends and Influence People, send a Cone
                         Shaped Hat to your Boss, with no card..(or better
                         yet give credit to your best friend {wink/grin})..