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Re: [Fot] Quaiffe Versus Gripper -

To: David Gott <triumphsix@yahoo.com>
Subject: Re: [Fot] Quaiffe Versus Gripper -
From: Scott Janzen via Fot <fot@autox.team.net>
Date: Thu, 20 Jul 2023 16:23:59 -0400
Cc: 'Friends of Triumph' Triumph <fot@autox.team.net>
Delivered-to: mharc@autox.team.net
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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=E2=80=99ll just have to try and find out.  Don=E2=80=99t like =
the idea of any wheel spin though.

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

Hi Scott,

I=E2=80=99ve 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=E2=80=99ve 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. =20


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@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.=20

Jake=20

On Thursday, July 20, 2023 at 10:48:25 AM CDT, 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 =
what the super fast GT6s at the Kastner Cup were running.

Scott Janzen
'68 GT6


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<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html; =
charset=3Dutf-8"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; line-break: after-white-space;" =
class=3D"">thanks, Dave. &nbsp;Well, I have a welded diff - it requires =
some input to work - does that mean I drive like a madman? =
&nbsp;Interesting, your results are the opposite of what I would have =
expected. &nbsp;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.<div =
class=3D"">Guess I=E2=80=99ll just have to try and find out. =
&nbsp;Don=E2=80=99t like the idea of any wheel spin though.<br =
class=3D""><div><br class=3D""><div class=3D"">On Jul 20, 2023, at 12:54 =
PM, David Gott &lt;<a href=3D"mailto:triumphsix@yahoo.com"; =
class=3D"">triumphsix@yahoo.com</a>&gt; wrote:</div><br =
class=3D"Apple-interchange-newline"><div class=3D""><!--[if gte mso =
9]><xml><o:OfficeDocumentSettings><o:AllowPNG/><o:PixelsPerInch>96</o:Pixe=
lsPerInch></o:OfficeDocumentSettings></xml><![endif]--><div class=3D"">
Hi Scott,<div class=3D""><br class=3D""></div><div class=3D"">I=E2=80=99ve=
 run both a welded diff in the #114 (Dads car) and a Quaiffe in the #80. =
&nbsp;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. &nbsp;Last turn at Thompson, the #80 was 11mph faster exiting the =
corner with the same driver. &nbsp; 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. &nbsp; I=E2=80=99ve developed a simple =
questionnaire to help. &nbsp;Lap times were the same on both =
cars.</div><div class=3D""><br class=3D""></div><div class=3D"">1. =
&nbsp;Do you drive like a madman? &nbsp;If yes, run the welded =
diff</div><div class=3D"">2. Are you a smooth driver? &nbsp;If yes, the =
quaife rewards smoothness. &nbsp;</div><div class=3D""><br =
class=3D""></div><div class=3D""><br class=3D""></div><div =
class=3D"">LOL</div><div class=3D""><br class=3D""></div><div class=3D"">I=
 have not driven a Gripper diff</div><div class=3D""><br =
class=3D""></div><div class=3D""><br class=3D""></div><div class=3D"">I =
hope that helps!</div><div class=3D""><br class=3D""></div><div =
class=3D"">Dave Gott<br class=3D""><br class=3D""><br class=3D""><div =
class=3D"yahoo-signature"><a =
href=3D"https://mail.onelink.me/107872968?pid=3Dnativeplacement&amp;c=3DGl=
obal_Acquisition_YMktg_315_Internal_EmailSignature&amp;af_sub1=3DAcquisiti=
on&amp;af_sub2=3DGlobal_YMktg&amp;af_sub3=3D&amp;af_sub4=3D100000604&amp;a=
f_sub5=3DEmailSignature__Static_" class=3D"">Sent from Yahoo Mail for =
iPhone</a><br class=3D""></div><br class=3D""><p =
class=3D"yahoo-quoted-begin" style=3D"font-size: 15px; color: #715FFA; =
padding-top: 15px; margin-top: 0">On Thursday, July 20, 2023, 12:26 PM, =
Erik Jacobsen via Fot &lt;<a href=3D"mailto:fot@autox.team.net"; =
class=3D"">fot@autox.team.net</a>&gt; wrote:</p><blockquote =
class=3D"iosymail"><div id=3D"yiv6379046069" class=3D""><div =
class=3D""><div style=3D"font-family:Helvetica Neue, Helvetica, Arial, =
sans-serif;font-size:16px;" =
class=3D"yiv6379046069ydp16d59365yahoo-style-wrap"><div class=3D""></div>
        <div dir=3D"ltr" class=3D"">Scott,</div><div dir=3D"ltr" =
class=3D"">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.&nbsp;</div><div dir=3D"ltr" class=3D""><br =
clear=3D"none" class=3D""></div><div dir=3D"ltr" =
class=3D"">Jake&nbsp;</div><div class=3D""><br clear=3D"none" =
class=3D""></div>
       =20
        </div><div id=3D"yiv6379046069ydp84dc4effyahoo_quoted_0072671032" =
class=3D"yiv6379046069ydp84dc4effyahoo_quoted">
            <div style=3D"font-family:'Helvetica Neue', Helvetica, =
Arial, sans-serif;font-size:13px;color:#26282a;" class=3D"">
               =20
                <div id=3D"yiv6379046069yqt27877" =
class=3D"yiv6379046069yqt3174629621"><div class=3D"">
                    On Thursday, July 20, 2023 at 10:48:25 AM CDT, Scott =
Janzen via Fot &lt;<a href=3D"mailto:fot@autox.team.net"; =
class=3D"">fot@autox.team.net</a>&gt; wrote:
                </div>
                <div class=3D""><br clear=3D"none" class=3D""></div>
                <div class=3D""><br clear=3D"none" class=3D""></div>
                <div class=3D""><div =
id=3D"yiv6379046069ydp84dc4effyiv6753433236" class=3D""><div =
class=3D"">Does anyone have experience with a Gripper diff - or a =
Quaiffe? &nbsp;I currently run a welded diff in the GT6 and am =
contemplating whether any advantage could be gained by making a swap. =
&nbsp;Certainly curious as to what the super fast GT6s at the Kastner =
Cup were running.<div class=3D"yiv6379046069ydp84dc4effyiv6753433236"><br =
clear=3D"none" class=3D"yiv6379046069ydp84dc4effyiv6753433236"></div><div =
class=3D"yiv6379046069ydp84dc4effyiv6753433236">Scott Janzen</div><div =
class=3D"yiv6379046069ydp84dc4effyiv6753433236">'68 GT6<br clear=3D"none" =
class=3D"yiv6379046069ydp84dc4effyiv6753433236"><div =
class=3D"yiv6379046069ydp84dc4effyiv6753433236"><br clear=3D"none" =
class=3D"yiv6379046069ydp84dc4effyiv6753433236"></div><div =
class=3D"yiv6379046069ydp84dc4effyiv6753433236"><br clear=3D"none" =
class=3D"yiv6379046069ydp84dc4effyiv6753433236"></div></div></div></div>__=
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