[Fot] Quaiffe Versus Gripper -

[Mike Harmuth]

Thompson fall finale and Watkins Glen, July Sprints, same diff, welded
(2021) vs Quife(2022), in both cases marginally faster with the Quaife.  In
the case of the Quaife results, I was still getting wheel hop, backing off
exiting the corners, so not the best I expect to get from it. New rear
spring, less camber, this year but track conditions (wet) at Thompson make
the 2023 comparison (not included) moot.
Best lap welded -
Thompson -
1:34.692
The Glen
2:46.708


Best Lap Quaife -
Thompson
1:34.372
the glen
2:46.202





On Thu, Jul 20, 2023 at 4:24 PM Scott Janzen <sjanzen at me.com> wrote:

> Mike, any relevant same-track comparisons in lap times, welded vs quaife?
>
> On Jul 20, 2023, at 12:33 PM, Mike Harmuth <ofracer at gmail.com> wrote:
>
> Scott, I went from a welded diff to a Quaife last year. Easier in the
> paddock etc to drive and push around. In the corners, less fighting the
> wheel, more point and shoot. Downside, I'm getting some wheel hop when I
> hit the gas. I've been making suspension, tire pressure and shock
> adjustments to dial it out, almost there. For the K Cup (and not one of the
> fast cars), I put an old welded diff in to get a better ratio (3.89) vs the
> normal 4.11 Quaife. Not sure I made the right call, no idea how many hills
> were at RA, but with all the settings the same, no wheel hop so it must be
> caused by the Quaife.
>
> GT6 diff in the car for the big stub axles, Quaife PN QDF8K. I ordered it
> last spring directly from Quaife when the exchange rate was pretty good.
>
> mike
>
>
> On Thu, Jul 20, 2023 at 11:58 AM 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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>> <QDF8K.pdf>
>
>
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