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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=E2=80=AFPM Scott Janzen <sjanzen@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@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 t=
he
> fast cars), I put an old welded diff in to get a better ratio (3.89) vs t=
he
> normal 4.11 Quaife. Not sure I made the right call, no idea how many hill=
s
> were at RA, but with all the settings the same, no wheel hop so it must b=
e
> 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=E2=80=AFAM Scott Janzen via Fot <fot@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 wha=
t
>> the super fast GT6s at the Kastner Cup were running.
>>
>> Scott Janzen
>> '68 GT6
>>
>>
>> _______________________________________________
>> fot@autox.team.net
>>
>> http://www.fot-racing.com
>>
>> Donate: http://www.team.net/donate.html
>> Archive: http://autox.team.net/archive http://www.team.net/pipermail/fot
>> Unsubscribe/Manage <http://www.team.net/pipermail/fotUnsubscribe/Manage>=
:
>> http://autox.team.net/mailman/options/fot/ofracer@gmail.com
>>
>>
>> <QDF8K.pdf>
>
>
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<div dir=3D"ltr">Thompson fall finale and Watkins Glen, July Sprints, same =
diff, welded (2021) vs Quife(2022), in both cases marginally faster with th=
e Quaife.=C2=A0 In the case of the Quaife results, I was still getting whee=
l hop, backing off exiting the corners, so not the best I expect=C2=A0to ge=
t from it. New rear spring, less camber, this year but track conditions (we=
t) at Thompson make the 2023 comparison (not included) moot.<div>Best lap w=
elded -=C2=A0</div><div>Thompson -=C2=A0</div><div><div class=3D"gmail-row-=
racer-laptime gmail-personal-best-laptime" style=3D"box-sizing:border-box;d=
isplay:table-cell;vertical-align:middle;width:80px;text-align:left;font-fam=
ily:Helvetica,Arial,sans-serif"><span style=3D"box-sizing:border-box"><font=
color=3D"#000000">1:34.692<br>The Glen<br><div class=3D"gmail-row-racer-la=
ptime gmail-personal-best-laptime" style=3D"box-sizing:border-box;display:t=
able-cell;vertical-align:middle;width:80px;text-align:right"><span style=3D=
"box-sizing:border-box">2:46.708</span></div><br class=3D"gmail-Apple-inter=
change-newline"></font></span></div></div><div class=3D"gmail-row-racer-lap=
time gmail-personal-best-laptime" style=3D"box-sizing:border-box;display:ta=
ble-cell;vertical-align:middle;width:80px;text-align:right;font-family:Helv=
etica,Arial,sans-serif"><font color=3D"#000000"><br></font></div><font colo=
r=3D"#000000">Best Lap Quaife -</font><div><font color=3D"#000000">Thompson=
<br></font><div><span style=3D"font-family:Helvetica,Arial,sans-serif;text-=
align:right"><font color=3D"#000000">1:34.372</font></span></div><div><div =
style=3D"text-align:left"><font face=3D"Helvetica, Arial, sans-serif" color=
=3D"#000000">the glen</font></div><div style=3D"text-align:left"><div class=
=3D"gmail-row-racer-laptime gmail-personal-best-laptime" style=3D"box-sizin=
g:border-box;display:table-cell;vertical-align:middle;width:80px;text-align=
:right;font-family:Helvetica,Arial,sans-serif"><span style=3D"box-sizing:bo=
rder-box"><font color=3D"#000000" style=3D"">2:46.202<br><br><br></font></s=
pan></div><br class=3D"gmail-Apple-interchange-newline"></div><div><br></di=
v></div></div></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=
=3D"gmail_attr">On Thu, Jul 20, 2023 at 4:24=E2=80=AFPM Scott Janzen <<a=
href=3D"mailto:sjanzen@me.com";>sjanzen@me.com</a>> wrote:<br></div><blo=
ckquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left=
:1px solid rgb(204,204,204);padding-left:1ex"><div style=3D"overflow-wrap: =
break-word;">Mike, any relevant same-track comparisons in lap times, welded=
vs quaife?<br><div><br><div>On Jul 20, 2023, at 12:33 PM, Mike Harmuth <=
;<a href=3D"mailto:ofracer@gmail.com"; target=3D"_blank">ofracer@gmail.com</=
a>> wrote:</div><br><div><div dir=3D"ltr">Scott, I went from a welded di=
ff to a Quaife last year. Easier in the paddock etc to drive and push aroun=
d. In the corners, less fighting the wheel, more point and=C2=A0shoot. Down=
side, I'm getting some wheel hop when I hit the gas. I've been maki=
ng suspension, tire pressure and shock adjustments to dial it out, almost t=
here. For the K Cup (and not one of the fast cars), I put an old welded dif=
f in to get a better ratio (3.89) vs the normal 4.11 Quaife. Not sure I mad=
e the right call, no idea how many hills were at RA, but with all the setti=
ngs the same, no wheel hop so it must be caused by the Quaife.<div><br></di=
v><div>GT6 diff in the car for the big stub axles, Quaife PN QDF8K. I order=
ed it last spring directly from Quaife when=C2=A0the exchange rate was pret=
ty good.</div><div><br></div><div>mike</div><div><br></div></div><br><div c=
lass=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Thu, Jul 20, =
2023 at 11:58=E2=80=AFAM Scott Janzen via Fot <<a href=3D"mailto:fot@aut=
ox.team.net" target=3D"_blank">fot@autox.team.net</a>> wrote:<br></div><=
blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-l=
eft:1px solid rgb(204,204,204);padding-left:1ex"><div>Does anyone have expe=
rience with a Gripper diff - or a Quaiffe?=C2=A0 I currently run a welded d=
iff in the GT6 and am contemplating whether any advantage could be gained b=
y making a swap.=C2=A0 Certainly curious as to what the super fast GT6s at =
the Kastner Cup were running.<div><br></div><div>Scott Janzen</div><div>=
9;68 GT6<br><div><br></div><div><br></div></div></div>_____________________=
__________________________<br>
<a href=3D"mailto:fot@autox.team.net"; target=3D"_blank">fot@autox.team.net<=
/a><br>
<br>
<a href=3D"http://www.fot-racing.com/"; rel=3D"noreferrer" target=3D"_blank"=
>http://www.fot-racing.com</a><br>
<br>
et=3D"_blank">http://www.team.net/donate.html</a><br>
Archive: <a href=3D"http://autox.team.net/archive"; rel=3D"noreferrer" targe=
t=3D"_blank">http://autox.team.net/archive</a> <a href=3D"http://www.team.n=
et/pipermail/fotUnsubscribe/Manage" rel=3D"noreferrer" target=3D"_blank">ht=
tp://www.team.net/pipermail/fot<br>
t/ofracer@gmail.com" rel=3D"noreferrer" target=3D"_blank">http://autox.team=
.net/mailman/options/fot/ofracer@gmail.com</a><br>
<br>
<br>
</blockquote></div>
<span id=3D"m_5808045187888491812cid:f_lkbdfsix0"><QDF8K.pdf></span><=
/div></div><br></div></blockquote></div>
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_______________________________________________
fot@autox.team.net
http://www.fot-racing.com
Archive: http://autox.team.net/archive http://www.team.net/pipermail/fot
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