[Fot] Gt6 differential failure

[Jason Ostrowski]

Ah yes...Cooling.
While you have it out maybe it's worth while to see about adding a temp
gauge back there.
I think its usually done at the oil plug but I'm not sure.
That would seem to perhaps help in preventing a minor fail turn into a
major explosion.

I much enjoyed the thread about the Diff cooling options for the endurance
TR6's a while back.
I think it was Keith Files and some others discussing some of the options
for Chump car guys.
The unit was mounted in the modified wheel well if I remember correctly.
The tough part for our tiny GT6 seems to be where to put the cooler and
plumbing.
Has Anyone out there ever used an external diff cooler on a GT6?
If so, how was it set up?
Thanks!

Jason Ostrowski
Friendly Ghost Racing
1969 Triumph GT6+ Racecars



On Mon, Jul 13, 2015 at 9:19 AM, Scott Janzen <sjanzen at me.com> wrote:

> thanks, Jason - yes, I was banging through the gears, and there's now a
> steep 150' +/- DROP at this track, downhill turn, where I was in second
> gear at 7,000 RPM, first accelerating, then letting it slow me down as I
> approached the sharp right to the uphill climb.  I'm sure that did not do
> the diff any good.
>
> Somehow the idea of putting a Subaru diff in this car does not feel very
> "vintage".
>
> Question - has anyone checked the oil temp, and would cooling make a
> difference?  I do run Redline 75-85 gear oil.
>
> I will report back and send carnage photos when I get it out.
>
> On Jul 13, 2015, at 10:12 AM, Jason Ostrowski wrote:
>
> I agree that it is consumable.
> A change to something different would seem to lead to a redesign of all
> the parts that mate to it and that could turn into a whole new set of other
> related projects.
> Likely a costly and complex endeavor to say the least.
> Knowing you, I assume you are using a quality oil already as Steve
> recommends.
> I notice you are racing faster lately and seem to be doing great with the
> car.
>
> Begin Public Service announcement to all FoT...
>
> That being said, (especially the faster you go) don't forget to remind
> yourself regularly about how you need to treat the drivetrain.
> Perhaps most importantly on this issue is careful driving with a constant
> focus to smooth transition between the gears.
> And really important is super smooth take-offs.
> I'm lucky to have John Reed (best GT6 racer of all time) at the track with
> me most of the time.
> He is never afraid to remind me of this.
> And does so on a regular basis when I'm leaving the grid.
> Even after all these years of coaching he will still often yell at me
> through my helmet prior to taking off.
> something like....
>  "Ride that F$#&%ng clutch baby!!"
> or "Easy take off".
> Wisdom I'm not afraid to admit I need to be reminded of in a tense
> moment taking off to hit the track.
> One slip of the foot or abrupt start is all it takes to do damage to the
> differential.
> I can trace most of my differential failures back to sketchy shift
> transitions or abrupt starts...
> We all hate to admit that an equipment failure is our own fault but,
> speaking for myself, I know it often is.
> This was an FoT Public Service Announcement...
> Brought to you by Friendly Ghost Racing.
>
> Jason Ostrowski
> Friendly Ghost Racing
> 1969 Triumph GT6+ Racecars
>
>
> On Sun, Jul 12, 2015 at 7:01 AM, Scott Janzen <sjanzen at me.com> wrote:
>
>> Mine disintegrated in a big way in the last race yesterday at Pitt Race.
>> Last one did the same thing about 3-4 years ago.
>> Should I just consider this a consumable item, or swap to something
>> stronger?  What are other vintage racers doing?
>>
>> Sent from my mobile device
>> _______________________________________________
>> fot at autox.team.net
>>
>> http://www.fot-racing.com
>>
>> Donate: http://www.team.net/donate.html
>> Archive: http://www.team.net/archive
>> Forums: http://www.team.net/forums
>> Unsubscribe/Manage:
>> http://autox.team.net/mailman/options/fot/jason@multivintage.com
>>
>>
>>
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://autox.team.net/pipermail/fot/attachments/20150713/814c6a3b/attachment-0001.htm>