Guys,

  Thank you for all of the info on coolant flow in the rotary.  The solution
  that I have favored thus far is to mount the punp on the left side in my
  case a pusher is on the spark plug side.  The outlet of the  Toyota pump
  will have at least (2) 90 degrre bends to get to the block inlet.  George
  do
  you have any info on the center housing cooling scenario?  Does it use 2
  pumps?

  Joe Berki
  Limo EZ

  Joe, The available four rotor conversion kit ($9800) requires a block off
  plate on the front accessory housing and an outlet addition to the stock
  front cover  behind the water pump. There is not any water pump listed in
  the kit materials. The ones being sold on the internet show one pump.
  Using a 3 rotor pump as far as I can determine requires a 3 rotor front
  accessory housing because it has a different bolt pattern than the 13B,
 The
  aftermarket is offering a dry sump front cover which I can't find a
 picture
  of at the moment which as I recall has the extra water outlets. Externally
  it looks like the one Mazda ocassionally built except that it is gear
 driven
  rather than chain drive. The price is high just to avoid machine work on a
  stock front accessory housing but if you were looking to dry sump it is a
  deal.


 george grimes


 Where did you see the Dry Sump System George?  Do you have a Web page link?
 Still thinking about one.

 Mike C.



 Mike C.  I don't know the link to the one I saw last week but here are some
 others.   www.Mazdaspeed.com <http://www.mazdaspeed.com/   with a part
 number

4352-10-600   a nice part built by Mazda but expensive and not always
available. Also   www.racingbeat.com  part number 11850 corresponds to a
slightly less expensive  Ratech brand front cover.   Theese systems are two
stage, one for pressure and one for scavenge.  If you are looking to
relocate the weight of the oil or put a flat plate on the engine bottom for
scavenge pickup to get space under the engine for a radiatorthese parts
would do that. If you are looking for more oil capacity Moroso makes 4 inch
deep oilpans for 13B engines.

       If you are looking to have an aerobatic oil system a minimum of two
scavenge pumps are required. This is most convienantly
done with a belt drive pump. I will try to attach some images, one with a
phone number engraved on the part. Also an image of the component kit from
www.petersonfluidsys.com

 For a list of webb addresses of the major
players in dry sump components you might look at
www.precisionenginetech.com/tech-explained/2009/05/22/dry-sump-oil-systems/
which also explains the plumbing and theory of dry sumps.   IMHO  the
gerotor type pumps are superior to the two spur gear type pumps.

You will
need pickips from the oil fill tube, top of front accessory housing and top
or side of rear housing.  Look at the cut away housings pictures to see the
internal oil drain areas of the side housings.  Continuous operation upright
or inverted appears possible but other orientations would likely be only
very short duration.

george grimes