> One question!  When you enlarge the oil sump do you have to extend
> the oil pickup tube to lower the strainer.
>
> Rino Lacombe
>
> It would be nice but no if you always keep the oil level in
> the pan several inches above the oil pick up tube.
> You still get the heat storage benefit of the increased
> amount of oil which delays the temperature rise on take
> off and climb out.
>
> Paul Lamar ...No rotor no motor.


Rino: Having only done this in old car racing days where larger mains, etc.
produced new failures, though I have planned for it on rotary (when I get my
round2it.),  I can only tell you we usually dropped pick up tube once got
enough clearance on everything to where oil usage was sufficient to requireit. You know, the old if it don't use it, you aint' running it hard enough
idea/excuse. But, the initial idea was to add air conditioner condensors and
then oil capacity for cooling, even to point of drilling drain holes into
heads and let oil run back into couple of holes spudded into top of pan on
each side, all to get back into pan. On one of these, where you are probablynot or shouldn't be sucking and/or burning enough oil to require additional
capacity for time of use, I would think it would not be necessary, as added
capacity to help stabilize temp is expected to be benefit. But, now, if you
plan to tanker yourself around for enough hours to actually darn near run it
out of oil, (long overwater flight, etc.) you certainly might want to
consider it.
jofarr, soddy tn

Don't forget jofarr racing cars generate at least one G lateral
and longitudinal while most airplanes don't.

Paul Lamar

I had Ed build me an oil pan with enough setback of both the front and
rear walls to allow 1"x2" .065  rectangular tubes to mount using the oil
pain bolts.  These tubes are very strong, light and avoid the heat and
weight issues of aluminum flanges. The pan is about 4" deep and holds 6
quarts.  A 13B pickup tube is a little over 3", reaches almost to the
bottom of this pan, and will fit on a Renesis engine with minimal
modifications.  Overall, this is a simple and inexpensive way to make a
'bed' type mount.

My rear (pusher) mounting tubes are relatively short, so they have
plenty of strength in all directions.  A longer engine-to-mount arm of
this same dimension would obviously need appropriate calculations to
assure it is strong enough.

Scott Gettings


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