The VW engine in an air cooled Porsche is the radiator that may or may not
have as much of an air flow problem as our Corvettes do. I know that the
rear engine hood is vented. I would guess that if they were driven to
extremes of a race track that they to would also need help.
I would ask around to see if the cooling capacity of the OEM oil cooler is
sufficient before I installed a fan on it. If it is not large enough you
could spend your $150 on a larger cooler to replace the OEM and get more for
your frugal money. I think that if a simple fan would work Pfadt & Rippie
would be selling electric fan kits.
Talk to Aaron Pfadt and he will tell you what you need to know.
Aaron is a vary smart engineer that is not afraid to give you advice.
What do they say on the Corvette Forum on the subject?

-----Original Message-----
From: RCCTrackers@yahoogroups.com [mailto:RCCTrackers@yahoogroups.com] On
Behalf Of uvbnzd
Sent: Monday, February 23, 2009 9:58 AM
To: RCCTrackers@yahoogroups.com
Subject: [RCCTrackers] Re: Hot engine oil temperatures

Thanks for all the insight that you have experienced. I agree with
everything that you have said. But, on the otherhand, Porsche has
been running an air cooled engine for years with an oil cooler that
works....as well as other manufacturers. My engine coolant
temperature has never been a problem...that I'm aware of. I will pay
closer attention next time on the track. Pfadt does have a nice
system, but any solution that requires $800 plus installation for 20-
40 minutes of track time is for the " I have nothing better to do
with my money". Sorry that I'm so frugile, but there has to be a more
economical way. Once the weather clears, I plan on putting an
auxillary fan on the stock oil cooler with a temperature activated
switch. I estimate $150 for the complete package. If it works I'll
sell the idea to Pfadt, Dewitts, and Rippie.

--- In RCCTrackers@yahoogroups.com, "Gary Bowler" <gary@...> wrote:
>
> Now that I am at my PC I can get more on the topic then using my
Blackberry.
> I did the DeWitts radiator that is 2x as thick and has 50% more
cooling
> surface on the engine & transmission oil cooler side. Mr DeWitts
told be
> that the only way that you will keep the coolant and oil temp down
is to
> increase air flow through his radiator. In other words, air flow is
the
> limiting factor if the radiator has the surface area to extract the
heat.
> The electric fans need to be programmed to come on sooner and stay
on high
> speed. The air flow is dependent on the restrictions to flow or
pressure
> drop created by the restrictions.
>
> This is one reason that all race Corvettes have vented hoods to
extract hot
> air from under the hood and increase air flow that is highly
restricted by
> the stock air flow path under the car. At speed you have more then
enough
> inlet air pressure to the radiator but the air needs to escape on
the outlet
> side.
> The dividends with the vented hood are less under hood pressure,
> temperature, lift and more down force.
> It would be interesting to see if the coolant & oil temperature
would
> decrease if just a vented hood was installed with a stock radiator.
This
> would tell you that the cooling capacity of the radiator is the
limiting
> factor if it dropped a few degrees.
>
> -----Original Message-----
> From: RCCTrackers@yahoogroups.com
[mailto:RCCTrackers@yahoogroups.com] On
> Behalf Of gary@...
> Sent: Sunday, February 22, 2009 5:06 AM
> To: RCCTrackers@yahoogroups.com
> Subject: Re: [RCCTrackers] Re: Hot engine oil temperatures
>
> Pfadt Racing has the best C5 oil cooler. Vented hood also helps
> Gary
> Sent from my Verizon Wireless BlackBerry
>
> -----Original Message-----
> From: "mitch-evans" <mitch-evans@...>
>
> Date: Sun, 22 Feb 2009 02:25:42
> To: <RCCTrackers@yahoogroups.com>
> Subject: [RCCTrackers] Re: Hot engine oil temperatures
>
>
> Found this link regarding high oil temps:
> http://www.z06vette.com/forums/f90/high-oil-temp-trackday-110477/
>
> ME
>
> --- In RCCTrackers@yahoogroups.com, "uvbnzd" <Mike.Je@> wrote:
> >
> > Yes, I have a 160 thermostat and the car was tuned by you. I have
seen
> > the Rippie version and I have also seen aftermarket radiators that
> > have engine oil cooling capability. Overpriced for me. However
the GM
> > automatic radiator is reasonably priced. Have you heard or
experienced
> > anyone swapping their radiator? My concern is that it may
restrict the
> > oil flow or reduce pressure. Z06's have a oil delivery problem
during
> > centrifugal forces and I don't want to make it worse. I've also
> > thought of mounting a small cooling fan on the factory oil cooler.
> > Where it is located from the factory doesn't allow for any air
flow.
> > What do you think of this idea? I know your company is very
innovative
> > and well respected for it's quality workmanship. Your opinion is
> > highly regarded.
> > Thanks for responding and I'm glad to see you are a member now.
If you
> > have any other alternative ideas, please pass them on. Or, better
yet,
> > if you have any specials..............
> >
> >
> >
> > --- In RCCTrackers@yahoogroups.com, "g8gt08" <g8gt08@> wrote:
> > >
> > > Do you have an aftermarket oil cooler system? We use Doug
Rippie oil
> > > cooler systems on the C5's with good luck, they are pricey
though.
> > > Also, is your corvette tuned? Do yopu have a low temp
thermostat?
> > > These things will also aid in having a cooler oil temperature.
> > >
> > > Mike
> > > New Era Performance
> > > www.neweraperformanceparts.com
> > >
> > >
> > > --- In RCCTrackers@yahoogroups.com, "uvbnzd" <Mike.Je@> wrote:
> > > >
> > > > I'm trying to gather information to solve the hot engine oil
> > > > temperatures that the C5's and C6's experience on road
courses.
> > > > On warm days above 80 degrees oil temperatures rise above 280
> and in
> > > > some cases I'm hearing of over 300 degrees. I know synthetics
are
> > > > capable of high temps, but this is pretty extreme. I've seen
> > > > replacement radiators with engine oil cooling capability, but
the
> > > > expense is a bit extreme and I am looking for an alternative.
Any
> > ideas?
> > > > Perhaps a GM personnel is out there willing to help. Has
anyone
> heard
> > > > or experienced using a radiator out of an automatic trans
Vette and
> > > > cooled the engine oil through the trans oil cooler?
> > > >
> > >
> >
>
>
>
>
> ------------------------------------
>
> Yahoo! Groups Links
>
>
>
>
>
>
> ------------------------------------
>
> Yahoo! Groups Links
>

------------------------------------

Yahoo! Groups Links