> > Paul
     > >
     > > Getting a quote for some oval tubing for the intermediate ports.
     > > right now it will be just straight oval tubing in lengths of 6ft
     > > the oval is custom extruded for the inner ports. Material is 6061
   with a .065 wall. the tubing can be mandrel bent into a round any
   thoughts for the bend profile? I initially will bend it at a 3":in
     > > radius but the idea is to keep the manifold as alow a profile as
   possible like Mistral has done.
     > >
     > > Have you seen DR Gas?
     > >
     > > www.drgas.com <http://www.drgas.com>
     > > click on the oval tubing catalouge this is an idea of what can be
   done. with oval tubing.
     > >
     > > tony
     > >
     > > To work well the oval cross sectional area must be the same as the
   round area. Merely
     > > flattening a round tube won't work for an intake manifold.
     > >
     > > Paul Lamar
     >
     > Im not talking about flattening a round tube. I'm talking about a
   custom extruded oval
     > that is the same cross section as the port, then mandrel bending
   the
   oval over the
     > top. The Dr gas website was merely to show what can be done with
   oval
   tubing. I can
     > flange the oval to accept the necessary tubing size.
     >
     > Tony
     >
     > What do they charge for a 180 degree mandrel bent 2" oval tube. Why
   do I suspect they
     > can not do that? Their transitions are fixed 2.5" round to 1.75 by
   2.8125 oval is not
     > constant area. Some how I think they are mandrel bending round tube
   180 degrees
     > and then squashing it flat :) This is not what we are looking for in
   a low
     > profile manifold but good luck.
     >
     >
     > Paul Lamar ...No rotor no motor.
     >

   O.K.
   Let me start OVER and this time READ my post.
   I'm going to have made some CUSTOM EXTRUSION OVAL TUBING 6061 ALUM
   not round and then pounded flat not pre bent flat and then pounded round
   CUSTOM EXSTRUDED OVAL TUBING. The same cross section as the port Do you
   understand so far?

   Next: The DR GAS website was to SHOW THAT YOU CAN MANDRAL BEND OVAL
   TUBING THAT IS ALL. IT IS FOR INFORMATION PURPOSES ONLY. NOTHING ELSE

   I'm talking about having tubing that anyone can use to make a lite
   intake manifold. Does that sound like something that the community could
   use?

   Now all I need from you is to get the bends right if you want to help
   that is fine, if not that is fine too.

   Tony

   Good luck let me know how you make out.

   --
   Paul Lamar ...No rotor no motor.


Seems like a lot of work for something that won't work as well as a p-port..

Matt-

My sentiments exactly Matt :) Anything other than a round tube has
more internal aerodynamic drag. Six tubes have more internal aerodynamic
drag than two tubes everything else being equal. Sharp right angle bends
with six side ports lose 40 to 50 HP  as compared to straight
in p-ports. Not to mention slightly more fuel burned for each HP generated
due to higher pumping losses.

Paul Lamar

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