> >  > >  > >  > >  > > Jerry Hey wrote:

 >>  >>  >>  >>  > >
 >>  >>  >>  >>  > >   Paul,   What do you think of this louver lay
 >>  >>arrangement?  Jerry
 >>  >>  >>  >>  > >
 >>  >>  >>  >>  >
 >>  >>  >>  >>  > That ought to work great.
 >>  >>  >>  >>  >
 >>  >>  >>  >>  > Paul Lamar
 >>  >>  >>  >Russell Kent wrote:
 >>  >>  >>  >>
 >>  >>  >>  >>  This image did not get through cleanly.
 >>  >>  >>  >>
 >>  >>  >>  >>  Russell Kent
 >>  >>  >
 >>  >>  >>  >I got it OK but here it is again.
 >>  >>  >>  >
 >>  >>  >>  >BTW Jerry you need the sides of those flaps closed too.
 >>  >>  >>  >
 >>  >>  >>  >Paul Lamar
 >>  >>  >
 >>  >>  >>  Yes, I am aware of that.   When are you setting up
your test rig?
 >>  >>  >>  Any chance you could test my rad with louvers and
plenum.   I can
 >>  >>  >>  bring it down around the end of Nov or beginning of Dec.   Jerry
 >>  >>  >
 >>  >>  >I hate to commit to anything now as I have a really full plate.
 >>  >>  >If you come down and help I think we could do it in one day.
 >>  >>  >
 >>  >>  >Can you build the box before you come down? Do you have a truck?
 >>  >>  >Perhaps your rad will fit my test box.
 >>  >>  >
 >>  >>  >Paul Lamar
 >>  >
 >>  >>  Paul,  you can count on my help.  I too am booked up until
the end of
 >>  >>  Nov. Any time after that is good for me.  If it takes one day or two
 >>  >>  that is fine.  Jerry
 >>  >
 >>  >OK I was planning on taking some more pressure measurements so that
 >>  >will be fine. If you could build the box up there using 3/16
inch copper
 >>  >tubing for the velocity taps that would save a lot of time.
 >>  >
 >>  >Paul Lamar

 >>  >  I will need an idiot proof drawing.  Jerry

 >OK :-) What are the exact dimensions of your rad core? Just the core!
 >Are you planning on mounting it long ways?
 >
 >Paul Lamar

 13 inches x 18 inches  Mounted long way.   Jerry

OK That means of course you are going to need a space
above the rad core at its leading edge of (235 *.3) /13 or
5.4 inches. Do you have room under the oil pan for that?

If you mounted it sideways you would only need 235 * .3 /18
or 3.9 inches.

Still want to mount it long ways?   Paul Lamar

If I were starting over I would set the radiator sideways, however,
that is no longer an option.  No, I cannot  achieve the optimum
opening at the leading edge of the core.  The maximum available is
4.75 inches.  At the leading edge of the rad header tank, the plenum
opening is 5.188 inches.   May not be optimum but it is very good.
I suspect that a MUCH smaller opening will prove to be adequate as
long as a good pressure drop through the radiator is achieved.  If
the louvers are efficient, no problem.  If they are not, then no
intake plenum regardless of size or shape will make a damn bit of
difference.  Just an uneducated opinion, mind ya.    Can the test box
be made so that different size intakes can be tried?

Jerry

OK we will build the box with 4.75" by 18" opening and see
what we get in the way of airflow. There may be a way of cheating
when you do an actual 3D duct.

Drawing later.


Paul Lamar
 
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