[Fot] Endurance TR6 at COTA

Mon Aug 8 11:07:24 MDT 2016

I bought such a diff cover some years ago, also from Racetorations (Darryl
Uprichard) for my TR3. The 4 round protrusions on the rear face can be
drilled and tapped. I did this to strenghten the live axle to take the load
of a Panhard bar. The axle tube had been bended to get some negative camber
(0.5°-0.8°).
Marcel

  _____  

Van: Fot [mailto:fot-bounces at autox.team.net] Namens Bill Babcock
Verzonden: maandag 8 augustus 2016 01:10
Aan: Greg Blake
CC: Fot
Onderwerp: Re: [Fot] Endurance TR6 at COTA

See if you can find one of these diff covers. About three times the oil
capacity and a heck of a lot more cooling. Fitting it might be a challenge,
but it solved my frying diff problem completely. That and RedLine diff oil.
No, I don’t remember where I got it. sorry. Maybe someone else knows where
they come from. As you can see by the empty bracket, I didtched my panhard
rod to run this thing. Subbed in the solid brass spring eyes and big washers
from Joe (I think, great memory) which keeps the axle centered almost as
well. .  

On Aug 7, 2016, at 6:52 AM, Greg Blake <gblake58tr3 at icloud.com> wrote:

Just a quick update. We were beaten by equipment at approximately 1:30
yesterday afternoon. Although certainly disappointed not to take the flag,
we were all pretty proud of the old girl. She put in a solid 8 hours Friday
and another 5.5 on Saturday. 

We were racing cars from the past two decades with a few exceptions. Out of
100+ cars, there was a pair of 60s mustangs, an Opel with a LS motor and us.
Friday we finished 47th with 114 laps and yesterday 73 with 81 laps.  We
were averaging 3:10s around the full F1 course. As a point of reference, the
leaders were running consistent 2:50s. A certain pair of drivers on our team
were clipping close to 2 minute laps and both swore they weren't pushing too
hard, maybe.

We were running with 18 month old 200 tried wear tires that had been flat
spotted at the last race. This became very noticeable at 100+ down the
straights. We again limited RPMs to save the motor.  With a 3.7 rear end and
no OD we were full speed about 1/2 into the straights.  This is where the
leaders would pass us.

Some of you recall last summer we raced this car with WRL in the June Texas
heat and had some issues with lower than desirable oil pressures and a diff
that boiling its juice. 

For the engine side of things:  This time around we installed an oil cooler
and used VR1 full synthetic. Oil pressure at full tilt was 90+ all weekend
and 40-50 at idle at pit stops.  Problem solved. I am very impressed with
synthetic motor oil. The oil still looks brand new after 13+ hours of
racing. I know from past endurance races with Dino oil, it would be pitch
black and stinky at this point. 

On the diff side (not so good):  after boiling the Dino based lubricant last
summer, we opted to simply switch to synthetic. This seemed to be working on
Friday as our diff catch can stayed dry. We had some terrible noises coming
from the rear end on Friday that we thought were hub bearings going out.
The hub bearings are still suspect and will require attention. But our more
serious problem was heat in the diff. The diff puked at about 1:30 and our
day was done. 

Last summer Keith mention his solution was a diff cooler and I think we will
be heading down that path for the next endurance race. Who knows, we may end
up with a triumph that can go the distance, eventually. 

We were so close this time.

Sent from my iPhone

On Aug 5, 2016, at 5:53 PM, Greg Blake <gblake58tr3 at icloud.com> wrote:

We finished the day strong. Only a brief stint in the garage to check some
bearings. Other than that, ran all day long in the Texas heat. Right now
47th out 100+

Notice the only hood down in the pic?

<IMG_0793.JPG>

Sent from my iPhone
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