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Jerry,
I suspect you remember that Francois Badoux identified a oil pump cavitation
at 3,500 rpm on the stock RX7 mazda. This was identified by a significant
pressure drop in oil supply.
He remedied this by putting in an extra pick-up tube as the oil pump was
being starved of oil at 3,500 rpm.
No one else has, to date, to my knowledge, identified this phenomena and it
was interesting to LATER discover that he had developed his own DEEPER oil
pan.
Someone suggested to me that the racing people only ever had this problem
when the oil pan was overfilled.
Now for the life of me I can't understand why this is so, but I feel
compelled to advise you of this so that you may watch for possible pressure
drops, if your developing a deeper pan.
George ( down under)
> Bobby, it looks like the Renesis oil pan can be modified into a deep
> wedge shape with much more capacity and with the pick up deeply
> covered in oil. Jerry
>
>
>
>
> On Tuesday, May 31, 2005, at 03:15 PM, Bobby J. Hughes wrote:
>
> > Jerry,
> >
> > I would feel much better with a minimum of 7 quarts. The Greddy RX8
> > aftermarket oil pan is also larger than stock.
> >
> > Bobby
> >
> > -----Original Message-----
> > From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On
> > Behalf Of Jerry Hey
> > Sent: Tuesday, May 31, 2005 2:43 PM
> > To: Rotary motors in aircraft
> > Subject: [FlyRotary] Re: Renesis oil pan
> >
> > Thanks Bobby, it looks like the Renesis is running on nearly 1.5 qts.
> > less oil than the 13B. Jerry
> >
> >
> > On Tuesday, May 31, 2005, at 09:58 AM, Bobby J. Hughes wrote:
> >
> >> Jerry,
> >>
> >> On Bruce T's recommendations I am planning on using the older 13B
> >> pickup tube. He said it would need to be modified to fit with Fred's
> >> mounting plate.
> >>
> >> I have attached the oil info from the RX8 shop manual. It looks like
> >> the
> >> 6 port has more oil capacity.
> >>
> >> Bobby
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >> -----Original Message-----
> >> From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]
> >> On Behalf Of Jerry Hey
> >> Sent: Tuesday, May 31, 2005 8:45 AM
> >> To: Rotary motors in aircraft
> >> Subject: [FlyRotary] Renesis oil pan
> >>
> >> Can anyone tell me if the Renesis pick up tube bolts up to the oil
> > pump
> >> the same as the 13 B? I am trying to determine if I can use the 13
> > B
> >> pick up tube in a custom oil pan for a Renesis. If not, the Renesis
> >> pick up tube will have to be modified.
> >> FYI,The 13 B oil pan is two inches deeper than the Renesis pan and
> >> holds
> >> 158 oz. The Renesis oil pan holds 96 oz.
> >>
> >> At oil change how much oil does the Renesis take? The 13B takes 5
> >> qts with filter. Thanks, Jerry
> >>
> >>
> >>
> >>
> >>
> >>
> >>>> Homepage: http://www.flyrotary.com/
> >>>> Archive: http://lancaironline.net/lists/flyrotary/List.html
> >>
> >> <RX8 oil.tif> Homepage: http://www.flyrotary.com/
> >>>> Archive: http://lancaironline.net/lists/flyrotary/List.html
> >
> >
> >>> Homepage: http://www.flyrotary.com/
> >>> Archive: http://lancaironline.net/lists/flyrotary/List.html
> >
> >
> >>> Homepage: http://www.flyrotary.com/
> >>> Archive: http://lancaironline.net/lists/flyrotary/List.html
> >
>
>
> >> Homepage: http://www.flyrotary.com/
> >> Archive: http://lancaironline.net/lists/flyrotary/List.html
>
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