[Fot] Endurance TR6 at COTA

Mon Aug 8 11:10:36 MDT 2016

Those bosses could also be used for a watts link setup.  Like Bill, I would
have to remove my pan hard rod to fit this cover (which I am not doing).
With the short (20 min. or less) races that I enter, I don't see diff oil
cooling as a problem. I would also look into modifying a TR5/6 rear cover
which looks like it has more capacity than the stock steel one.

On Sun, Aug 7, 2016 at 8:00 PM, Bob Kramer <rkramer3 at austin.rr.com> wrote:

> I'm guessing the four bosses will take a TR4A style IRS bracket. This
> looks like a worthy upgrade. We are going to add a pump and cooler for
> sure.
>
> This time I think we had a more traditional pinion failure rather than
> heat related.  I felt it chunk something in the first hour of the event
> when it was still pretty cool. It later calmed down to the point other
> drivers said they didn't hear it.
>
> I'll pull it and find out soon.
>
> Sent from my iPhone
>
> On Aug 7, 2016, at 6:10 PM, Bill Babcock <ponobill at gmail.com> wrote:
>
> 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. .
>
> <IMG_0453.jpg>
>
>
>
> 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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