We ran Cool Shirts for the WRL race. While the diff was boiling over we were
cool, calm and carrying on. So let's see, I'll be adding a Cool Shirt system
with a little 12 Volt pump, and the diff cooler with a little 12 Volt pump
makes sense. Don't anyone dare let me try out a helmet cooler.
I guess I can't put off getting an alternator wired in any longer.
Bob Kramer
rkramer3@austin.rr.com
---- Keith Files <keithfiles@btinternet.com> wrote:
> We use a diff cooler to avoid the problem on the TR6, a lot cheaper than
> continual rebuilds of the diff. I ran with one doing 3 hours of the
> Nurburgring Nordschleife a couple of years ago, it worked perfectly.
>
> Keith
>
> Sent from my iPad
>
> > On 2 Jun 2015, at 20:01, Kas Kastner <kaskastner@gmail.com> wrote:
> >
> > I had failure of all three cars at Sebring with the IRS cars. In practices
> > the diffs overheated and puked oil out the breather tub as you describe. I
> > laid part of it to a new diff but most to the heat generated by a disc type
> > limited slip. The capacity of the diff is marginal for endurance running.
> > Add to the capacity or add a cooler.
> >
> > Never be beaten by equipment.
> >
> >
> >> On Tue, Jun 2, 2015 at 10:40 AM, Greg And Alison Blake
> >> <ablake2@austin.rr.com> wrote:
> >> Some of yall may have followed the social Media posts provided by our
> >> teammates through the weekend. We were racing the Beanitos TR6 this past
> >> weekend at what was to be TWS's last ever race. It was a split 16 hour
> >> endurance race (Sat&Sun).
> >>
> >> We had a strange failure on Saturday. About 6 hours in, the truck was full
> >> of gear oil. I had routed a diff vent line to the trunk. Upon returning to
> >> the garage, we discovered melted poly diff mounts. Pic below.
> >>
> >> I've been scratching my head on this one. Prior to boiling the diff fluid,
> >> we had zero leaks in the freshly serviced diff. I had replaced all seals
> >> and filled with STALUBE 90WT GL4.
> >>
> >> I've been racing my TR3 using this same diff fluid for 6 years (replaced
> >> every two weekends). Never a problem with my vintage race car. Of course,
> >> I've never run the 3 for 6 hours straight.
> >>
> >> Some of the more seasoned endurance racers asked what fluid I had in the
> >> diff. All suggested that mineral based fluid is not a good choice for
> >> endurance events.
> >>
> >> I'd love to hear opinions as to the route cause of our failure and more
> >> importantly, suggested remedies.
> >>
> >> As to the results, the car was running consistently 2:1x laps with a fast
> >> lap of 2:10. We ended up taking the workers choice award. Had we run w/o
> >> diff failure and a subsequent battery failure, we could have been in the
> >> hunt for a podium finish. Fastest lap in our group was 2:09.9
> >>
> >> Great weekend
> >>
> >>
> >>
> >>
> >> Thanks
> >> Greg
> >> _______________________________________________
> >> fot@autox.team.net
> >>
> >> http://www.fot-racing.com
> >>
> >> Donate: http://www.team.net/donate.html
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> >> Unsubscribe/Manage:
> >> http://autox.team.net/mailman/options/fot/kaskastner@gmail.com
> >
> > _______________________________________________
> > fot@autox.team.net
> >
> > http://www.fot-racing.com
> >
> > Donate: http://www.team.net/donate.html
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> > Unsubscribe/Manage:
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> >
> >
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