Sounds like a lot of stuff. An accusump serves three purposes--pre-
lubricates the engine prior to starting, keeps oil pressure above some
minimum, and provides pressure for shutdown in the event of a problem
in the oil delivery system. It's not there to increase oil flow, you
do that in other ways, either by raising pressure or by enlarging the
oil passage that you want more flow from. As far as i can see on TR3/4
motors the only place we really need to worry about those three things
is crank bearings--mains and rods. The rest of the stuff gets adequate
oil for the most part and can get by on residual oil during an
emergency. Our expensive crankshaft's can't.
All due respect to Sam, it sounds more like he's talking about keeping
an engine together for a race than having one last a season or more.
I like things to be as simple as they can be AND NO MORE. Directly
connecting an accumulator to the oil gallery seems to make my engines
last and last. The motor in Peyote lasted an entire season, and then
went on the all aluminum tour. It was still running fine when Garmey
rebuilt it.
If you can do something like that with a clean, light, unencumbered
solution versus something that might be initially easier to do but is
both more complicated and less reliable, then I'd always bite the
bullet and go for simple and reliable.
On Feb 5, 2009, at 7:13 AM, Chuck Arnold wrote:
> Now that I think of this design, I have decided I do not like it --
> if the
> Accusump fires, most of the oil will go to the oil filter return.
> Am going
> to directly plumb the Accusump to the large port on the galley [if
> the PI
> metering unit allows room]. Will then put the one way valve on the
> "T" from
> the oil cooler line so all the Accusmp oil goes to the galley [does
> this
> seem like a good idea?].
>
> On Thu, Feb 5, 2009 at 9:06 AM, Chuck Arnold <triosan@gmail.com>
> wrote:
>
>> I have taken the approach on the TR6 engine to directly feed three
>> oil
>> gallery ports from the return line off the oil cooler and from the
>> Accusump. A "T" in the return line feeds to both the oil filter
>> return and
>> to a manifold. The manifold is also fed by the Accusump.
>> Threelines from
>> the manifold go directly to the gallery ports. See attached photo.
>>
>> Note: Sam Halkias told me thatdirectly feeding the gallies is
>> notreally
>> necessary. Whatis necessary is to increase flow,and that is done by
>> enlarging the hole[s?] in the engine block that feed the gallery to
>> 1/8th
>> inch. I figure any way I can keep a lot ofpressure and volume on
>> number 1
>> main and rod bearing is good. Of course, I have oil pan baffles
>> and a
>> windage tray [and this year will use Racestorations heavy duty, extra
>> capacity aluminum sump]. Hope to keep the e.ngine all together
>> this year
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