Maybe I'm answering only the question about a table that's shows pressure
vs. viscosity.

Regards,

Ralf

Hey, P.J. and Ralf and all you other guys...
Wanna have some fun?  Build yourself a VW Oil Pump Tester.
Seriously.  It's easiest if you've got a lathe & milling machine but
you can make a suitable holder out of WOOD and some Bondo.

The idea is to make a bench-top VW oil pump HOLDER.  You drill the
inlet & outlet holes first... then bolt them together with a bolt
passing through both pieces.  Bolted up like that, use your milling
machine or the lathe to turn the hole to the ddiameter of the pump-
body MINUS about three through.  You will need to rig a slotted
DRIVER.  A piece of 3/4" shafting  will do, turned down to accept 1/2"
drive v-belt pulleys.  Use 3/4" collars.

The handy thing here is that you can make up any kind of pump cover
you want... or you can buy some of that blister-pak'd crap.  Put a
gauge in the circuit and rig an input hose, you can do all manner of
interesting tests.  But you'll need about 2 hp on your input... and a
double-sheave pulley to get enough power to it.

An engine builder who taught me a lot of stuff about racing engines
had a rig similar to the above that he used to test blue-printed
pumps, long-gear pumps and so forth.  The experiments he was working
on at the time of his death had to do with a centrifugal oil filter --
a belt-driven jobbie that ran at 2x crankshaft speed to power the 6"
dia. 'filter plate'.

If you happen to have an aero-space industry handy you can pick-up new-
surplus aluminum billets, tooling plate and so forth at bargain
prices.  Or, you can try making your own castings.

I suppose the point of all this is that when you can't find the data
you need, you can always create a few simple experiments and develop
the data yourself. such as using about one-quart MORE oil than
recommended... and giving the engine a chance to fill all your lube-
oil devices & plumbing before you put the hammer down.  By that time
the extra quart will have vanished, taken up by the hosing & pipes
supplying your cooler, pre-luber, filter and so forth.  With AIRPLANES
you need to establish the sump's capacity with the engine at various
ANGLES.  Overlook that particular data and you can eat an engine
because the angle sez you've got too much oil in the sump when in fact
you may not have enough.

All of this is just common-sense stuff; the sort of thing everyone
eventually figures out... after losing an engine or two.

-Bob Hoover