[Fot] Quaiffe Versus Gripper -

[Scott Janzen]

thanks, Dave.  Well, I have a welded diff - it requires some input to work - does that mean I drive like a madman?  Interesting, your results are the opposite of what I would have expected.  I assumed the welded diff is more of an inhibitor in tight turns where it wants the car to understeer, and on sweepers the wheel speed differential would have less of an effect.
Guess I’ll just have to try and find out.  Don’t like the idea of any wheel spin though.

On Jul 20, 2023, at 12:54 PM, David Gott <triumphsix at yahoo.com> wrote:

Hi Scott,

I’ve run both a welded diff in the #114 (Dads car) and a Quaiffe in the #80.  On the same track, I find high speed sweeper corner speed is much better with the Quaiffe as the welded diff requires modulating the throttle to control the forced oversteer, where the quaife car is flat out.  Last turn at Thompson, the #80 was 11mph faster exiting the corner with the same driver.   However, on the hairpin, the welded diff was a much better performer where the quaife required a VERY smooth line and was modulating wheel spin where the welded diff just rotated the car and shot out of a turn.   I’ve developed a simple questionnaire to help.  Lap times were the same on both cars.

1.  Do you drive like a madman?  If yes, run the welded diff
2. Are you a smooth driver?  If yes, the quaife rewards smoothness.  


LOL

I have not driven a Gripper diff


I hope that helps!

Dave Gott


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On Thursday, July 20, 2023, 12:26 PM, Erik Jacobsen via Fot <fot at autox.team.net> wrote:

Scott,
Just my two cents worth (no cash value), but we have a Detroit locker in the TR3 and my wife runs a welded diff in the TR6. I raced both this weekend at RA, and frankly don't notice any difference except in the pits or pushing the car. Bear in mind that neither us, nor our cars have ever been described as super-fast. I do notice the difference when racing my Bugeye with an open diff, as it lifts the inside rear and loses drive. 

Jake 

On Thursday, July 20, 2023 at 10:48:25 AM CDT, Scott Janzen via Fot <fot at autox.team.net> wrote:


Does anyone have experience with a Gripper diff - or a Quaiffe?  I currently run a welded diff in the GT6 and am contemplating whether any advantage could be gained by making a swap.  Certainly curious as to what the super fast GT6s at the Kastner Cup were running.

Scott Janzen
'68 GT6


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