[Supras] moving oil pickup

[Jeff Mohler]

I guess what Jim and I are saying is..that oil starvation _does not exist_
in the 7M under any conditions that _anyone_ with one has _ever_
encountered, unless  youre competing in a hillclimb competition sometime
soon.

But feel free to make it 'better', nobody will stop ya.  :)



Now..if were going hill climbing on ESPN2

On 6/12/07, berniek at technicaldevelop.com <berniek at technicaldevelop.com>
wrote:
>
> A dry sump invovles use of a scavenging pump, and oil tank with a chamber
> large enough to allow oil-air separation.  I know because the original
> 1970 Honda four cylinder bike I have (bought new) has one.
>
> I don't see the complexity in lengthening the pickup tube in its
> horizontal section, and connecting the bracket to a steel tab under one of
> the main cap bolts.  Cutting a pickup hole further back in the pan baffle
> is an easy matter.  What am I overlooking here regarding complexity?  I've
> had instances with rear sump GM cars where oil climbed the side of the
> sump, evidenced by noisy hydraulic valve lifters.  This time I'm
> addressing straigth line acceleration with the 7M, but there will be no
> audible warning of inipient starvation as with hydraulic lifters.
>
> BernieK
>
>
> > May I ask a one question: Are you afraid of a dry sump? It just seems
> the
> > amount of work you are doing is ridiculous...for something the physics
> say
> > only *might* happen.
> >
> > Keith DiSarno
> > Quality Co-op (Elyria)
> >
> >
> > -----Original Message-----
> > From: supras-bounces at supras.com [mailto:supras-bounces at supras.com] On
> > Behalf
> > Of Jim Jobe
> > Sent: Tuesday, June 12, 2007 8:40 AM
> > To: berniek at technicaldevelop.com
> > Cc: Supras at supras.com
> > Subject: Re: [Supras] moving oil pickup
> >
> >
> >
> > I've never seen oil pressure drop on any of my 5-600+ rwhp pulls,
> however,
> > instead of fixing one direction why not fix all directions. IE make the
> > sump
> > bigger, increasing oil volume at the same time, and bury the oil pickup
> in
> > it.  You do turn and brake right?  :-)
> >
> > On Tue, Jun 12, 2007 at 02:20:03AM -0400, berniek at technicaldevelop.com
> > wrote:
> >> First. let me state that I do not want to incite a flame war.  There
> >> are some very well respected participants in this group who maintain
> >> that position of the 7M stock pickup is adequate under strong
> >> acceleration.  However, from measurements taken and from simple
> >> physics and trigonometry I do not agree that the stock location is
> >> best from a standpoint of at least transiient oil starvation under
> >> hard acelleration  Again will all due respect, it appears to me that a
> >> further rearward oil pickup location would be better under hard
> >> acceleration.
> >>
> >> That having been said, iit would appear to be a straightforward matter
> >> to cut the pickup pipe and weld or braze in a section to lengthen it
> >> by about 3 inches to get it further to the rear of the pan.  The
> >> existing pickup support could be tied to a piece of 3/16" steel sheet
> >> stock retained under the right 6th main bearing bolt, in the same
> >> manner as now supported to the block.  Of courxe, a new pickup hole
> >> would need to be cut in the oil pan baffle to accomodate the rearward
> >> relocatiion of the pickup.
> >>
> >> Just curious if anyone has any comments.
> >>
> >>         BernieK _______________________________________________
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> >> Supras at supras.com
> >> http://supras.com/mailman/listinfo/supras_supras.com
> >
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> >
>
>
>
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