Subject: [Fot] Quaiffe Versus Gripper -

From: Scott Janzen via Fot <[email-masked]>
Date: Thu, 20 Jul 2023 11:44:47 -0400

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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="Content-Type" content="text/html; charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">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=""><br class=""></div><div class="">Scott Janzen</div><div class="">'68 GT6<br class=""><div class=""><br class=""></div><div class=""><br class=""></div></div></body></html>
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_______________________________________________
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http://www.fot-racing.com

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From: Scott Janzen via Fot <[email-masked]>
Date: Fri, 21 Jul 2023 21:41:52 -0400

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<html><head><meta http-equiv=3D"content-type" content=3D"text/html; charset=3D=
utf-8"></head><body dir=3D"auto"><div dir=3D"ltr"><meta http-equiv=3D"conten=
t-type" content=3D"text/html; charset=3Dutf-8">Wow, lots of really great fee=
dback, as Tony said. While it is hard to argue with Jason=E2=80=99s conclusi=
ons (both race results and the heat issue, which i am concerned about), I=E2=
=80=99m very tempted to try a clutch type limited slip just to see what it i=
s like. I have done the Detroit locker in a tr4, seems to me to have no real=
 advantage over the welded diff on the track (though I hope someone will tel=
l me what I=E2=80=99m missing ), and i don=E2=80=99t like the on- off aspect=
.</div><div dir=3D"ltr"><br></div><div dir=3D"ltr"><div>For about the cost o=
f a set of tires and some garage time, i can give one a test. If i do, I=E2=80=
=99ll let you know what the results are.<br>Thanks, all!</div><div><div dir=3D=
"ltr">Sent from my iPhone</div><div dir=3D"ltr"><br><blockquote type=3D"cite=
">On Jul 21, 2023, at 3:34 AM, Jason Ostrowski via Fot &lt;[email-masked]=
t&gt; wrote:<br><br></blockquote></div><blockquote type=3D"cite"><div dir=3D=
"ltr">=EF=BB=BF<meta http-equiv=3D"content-type" content=3D"text/html; chars=
et=3Dutf-8">I am the smooth madman.<div>And a further fact analysis has to d=
o with oil volume&nbsp;</div><div>The limited slip unit installed inside the=
 tiny GT6 diff case takes up way wore space than the welded spider gears. Th=
us the welded setup allows you to use more oil which is critical.&nbsp;</div=
><div>Generally speaking the GT6 Differential requires more oil volume not l=
ess.</div><div>Jason Ostrowski&nbsp;</div><div>Friendly Ghost Racing&nbsp;</=
div><div>1969 Triumph GT6+ Racecars<br><br><div dir=3D"ltr">Sent from my iPh=
one</div><div dir=3D"ltr"><br><blockquote type=3D"cite">On Jul 20, 2023, at 7=
:48 PM, Brian Dolan via Fot &lt;[email-masked]&gt; wrote:<br><br></block=
quote></div><blockquote type=3D"cite"><div dir=3D"ltr">=EF=BB=BF<div dir=3D"=
auto">What about for a smooth madman?&nbsp;</div><div dir=3D"auto"><br></div=
><div dir=3D"auto">If such a person exists=E2=80=A6!</div><div><br><div clas=
s=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Thu, Jul 20, 2023=
 at 3:53 PM David Gott via Fot &lt;<a href=3D"mailto:[email-masked]">fot=
@autox.team.net</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote" st=
yle=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div>
Hi Scott,<div><br></div><div>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 s=
peed 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 fast=
er exiting the corner with the same driver. &nbsp; However, on the hairpin, t=
he welded diff was a much better performer where the quaife required a VERY s=
mooth line and was modulating wheel spin where the welded diff just rotated t=
he car and shot out of a turn. &nbsp; I=E2=80=99ve developed a simple questi=
onnaire to help.&nbsp; Lap times were the same on both cars.</div><div><br><=
/div><div>1.&nbsp; Do you drive like a madman?&nbsp; If yes, run the welded d=
iff</div><div>2. Are you a smooth driver?&nbsp; If yes, the quaife rewards s=
moothness. &nbsp;</div><div><br></div><div><br></div><div>LOL</div><div><br>=
</div><div>I have not driven a Gripper diff</div><div><br></div><div><br></d=
iv><div>I hope that helps!</div><div><br></div><div>Dave Gott<br><br><br><di=
v><a href=3D"https://mail.onelink.me/107872968?pid=3Dnativeplacement&amp;c=3D=
Global_Acquisition_YMktg_315_Internal_EmailSignature&amp;af_sub1=3DAcquisiti=
on&amp;af_sub2=3DGlobal_YMktg&amp;af_sub3=3D&amp;af_sub4=3D100000604&amp;af_=
sub5=3DEmailSignature__Static_" target=3D"_blank">Sent from Yahoo Mail for i=
Phone</a><br></div><br><p style=3D"font-size:15px;color:#715ffa;padding-top:=
15px;margin-top:0">On Thursday, July 20, 2023, 12:26 PM, Erik Jacobsen via Fo=
t &lt;<a href=3D"mailto:[email-masked]" target=3D"_blank">[email-masked]=
.net</a>&gt; wrote:</p><blockquote><div id=3D"m_6925694638077797011yiv637904=
6069"><div><div style=3D"font-family:Helvetica Neue,Helvetica,Arial,sans-ser=
if;font-size:16px"><div></div>
        <div dir=3D"ltr">Scott,</div><div dir=3D"ltr">Just my two cents wort=
h (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 n=
otice any difference except in the pits or pushing the car. Bear in mind tha=
t neither us, nor our cars have ever been described as super-fast. I do noti=
ce the difference when racing my Bugeye with an open diff, as it lifts the i=
nside rear and loses drive.&nbsp;</div><div dir=3D"ltr"><br clear=3D"none"><=
/div><div dir=3D"ltr">Jake&nbsp;</div><div><br clear=3D"none"></div>
       =20
        </div><div id=3D"m_6925694638077797011yiv6379046069ydp84dc4effyahoo_=
quoted_0072671032">
            <div style=3D"font-family:'Helvetica Neue',Helvetica,Arial,sans-=
serif;font-size:13px;color:#26282a">
               =20
                <div id=3D"m_6925694638077797011yiv6379046069yqt27877"><div>=

                    On Thursday, July 20, 2023 at 10:48:25 AM CDT, Scott Jan=
zen via Fot &lt;<a href=3D"mailto:[email-masked]" target=3D"_blank">fot@=
autox.team.net</a>&gt; wrote:
                </div>
                <div><br clear=3D"none"></div>
                <div><br clear=3D"none"></div>
                <div><div id=3D"m_6925694638077797011yiv6379046069ydp84dc4ef=
fyiv6753433236"><div>Does anyone have experience with a Gripper diff - or a Q=
uaiffe?&nbsp; I currently run a welded diff in the GT6 and am contemplating w=
hether any advantage could be gained by making a swap.&nbsp; Certainly curio=
us as to what the super fast GT6s at the Kastner Cup were running.<div><br c=
lear=3D"none"></div><div>Scott Janzen</div><div>'68 GT6<br clear=3D"none"><d=
iv><br clear=3D"none"></div><div><br clear=3D"none"></div></div></div></div>=
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