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Glen, great point!
Seems that many race pad manufacturers try to give us the most material for
our money with a big, rectangular friction material puck. This
definitely works against us with the ancient, two piston calipers we run.
More heat, and more surface speed out towards the edge of the rotor is a
recipe for radial taper.
I've found with enough complaining, I can get them to change the shape of
the pad to a trapezoid, and it really does help as you say. It doesn't
eliminate taper on my GT6 that's brutal on brakes, but it is a big step in
the right direction.
In lieu of a properly designed friction puck, I sometimes use a big file to
adjust the shape of the friction material to accomplish the same thing.
Running a thick spacer behind the pad as they wear down also helps keep the
pistons true to the bore, and reduces heat transfer to the fluid/seals.
Jason Sukey
JS Performance Motoring, LLC
440.984.7720
jason@jsperformancemotoring.com
https://www.facebook.com/JSPerformanceMotoring/
On Wed, Jul 3, 2024 at 12:14=E2=80=AFPM fubog1 via Fot <fot@autox.team.net>=
wrote:
> Another point to consider re pad selection, & I don't see mentioned, is
> make sure that the pads have the correct taper ie backer flat down, the
> profile of the pad side should taper down towards the center of the
> disc/bottom of the pad to some degree, a trapezoid with the long side up,
> ie not be rectangular shape.
> Reason is that a lot more heat is generated towards the OD of the disc, &
> they'll wear more; having less friction surface towards the bottom of the
> pad w/a taper evens the pad wear, & it won't develop the other form of
> "taper", that usually requires that 1st brake pedal stab as the rectangul=
ar
> shaped pads do as they wear.
> This applies to all TRs.
> I've also seen many cases where "interchanges" don't consider the shape o=
f
> the pad, although the pads are dimensionally correct & fit.
>
> Glen Efinger
>
> On Monday, July 1, 2024 at 04:43:42 PM EDT, Mark Fisher via Fot <
> fot@autox.team.net> wrote:
>
>
> Hi All:
>
> What do you racers like for front pads on your Spits and GT6s?
>
> Thanks in advance,
>
> Mark Fisher
>
> _______________________________________________
> fot@autox.team.net
>
> http://www.fot-racing.com
>
> Donate: http://www.team.net/donate.html
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>
>
> _______________________________________________
> fot@autox.team.net
>
> http://www.fot-racing.com
>
> Donate: http://www.team.net/donate.html
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<div dir=3D"ltr">Glen, great point!<div><br></div><div>Seems that many race=
pad manufacturers=C2=A0try to give us the most material for our money with=
a big, rectangular friction material puck.=C2=A0 This definitely=C2=A0work=
s against us with the ancient, two piston calipers we run.=C2=A0 More heat,=
and more surface speed out towards the edge of the rotor is a recipe for r=
adial taper.</div><div><br></div><div>I've found with enough complainin=
g, I can get them to change the shape of the pad to a trapezoid, and it rea=
lly does help as you say.=C2=A0 It doesn't eliminate taper on my GT6 th=
at's brutal on brakes, but it is a big step in the right direction.</di=
v><div><br></div><div>In lieu of a properly designed friction puck, I somet=
imes use a big file to adjust the shape of the friction material to accompl=
ish the same thing.</div><div><br></div><div>Running a thick spacer behind =
the pad as they wear down also helps keep the pistons true to the bore, and=
reduces heat transfer to the fluid/seals.</div><div><br></div><div><br></d=
iv><div><div><div dir=3D"ltr" class=3D"gmail_signature" data-smartmail=3D"g=
mail_signature"><div dir=3D"ltr"><div><div dir=3D"ltr"><div><div dir=3D"ltr=
"><div dir=3D"ltr"><div dir=3D"ltr"><div>Jason Sukey</div><div><span></span=
><span></span>JS Performance Motoring, LLC<br></div><div>440.984.7720</div>=
<div><a href=3D"mailto:jason@jsperformancemotoring.com"; target=3D"_blank">j=
ason@jsperformancemotoring.com</a><br></div><div><a href=3D"https://www.fac=
ebook.com/JSPerformanceMotoring/" target=3D"_blank">https://www.facebook.co=
m/JSPerformanceMotoring/</a><br></div></div></div></div></div></div></div><=
/div></div></div><br></div></div><br><div class=3D"gmail_quote"><div dir=3D=
"ltr" class=3D"gmail_attr">On Wed, Jul 3, 2024 at 12:14=E2=80=AFPM fubog1 v=
ia Fot <<a href=3D"mailto:fot@autox.team.net";>fot@autox.team.net</a>>=
wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px =
0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div><di=
v style=3D"font-family:Arial,Helvetica,sans-serif;font-size:16px"><div></di=
v>
<div dir=3D"ltr">Another point to consider re pad selection, & =
I don't see mentioned, is make sure that the pads have the correct tape=
r ie backer flat down, the profile of the pad side should taper down toward=
s the center of the disc/bottom of the pad to some degree, a trapezoid with=
the long side up, ie not be rectangular shape.</div><div dir=3D"ltr">Reaso=
n is that a lot more heat is generated towards the OD of the disc, & th=
ey'll wear more; having less friction surface towards the bottom of the=
pad w/a taper evens the pad wear, & it won't develop the other for=
m of "taper", that usually requires that 1st brake pedal stab as =
the rectangular shaped pads do as they wear.<br></div><div dir=3D"ltr">This=
applies to all TRs.</div><div dir=3D"ltr">I've also seen many cases wh=
ere "interchanges" don't consider the shape of the pad, altho=
ugh the pads are dimensionally correct & fit.</div><div dir=3D"ltr"><br=
></div><div dir=3D"ltr">Glen Efinger<br></div><div><br></div>
=20
</div><div id=3D"m_-2871832781424524163ydp23b6118fyahoo_quoted_0565=
246479"><div style=3D"font-family:Arial,Helvetica,sans-serif;font-size:16px=
">
<div style=3D"font-family:"Helvetica Neue",Helvetica,=
Arial,sans-serif;font-size:13px;color:rgb(38,40,42)">
=20
<div>
On Monday, July 1, 2024 at 04:43:42 PM EDT, Mark Fi=
sher via Fot <<a href=3D"mailto:fot@autox.team.net"; target=3D"_blank">fo=
t@autox.team.net</a>> wrote:
</div>
</div><div style=3D"font-family:"Helvetica Neue",=
Helvetica,Arial,sans-serif;font-size:13px;color:rgb(38,40,42);border-left:1=
px solid rgb(204,204,204);padding-left:8px;margin:0px 0px 0px 8px">
<div><br></div><div><br></div>
<div><div id=3D"m_-2871832781424524163ydp23b6118fyiv3112983=
551"><div><div style=3D"font-family:"times new roman","new y=
ork",times,serif;font-size:18px"><div dir=3D"ltr">Hi All:</div><div di=
r=3D"ltr"><br></div><div dir=3D"ltr">What do you racers like for front pads=
on your Spits and GT6s?</div><div dir=3D"ltr"><br></div><div dir=3D"ltr">T=
hanks in advance,</div><div dir=3D"ltr"><br></div><div dir=3D"ltr">Mark Fis=
her</div><div dir=3D"ltr"><br></div></div></div></div>_____________________=
__________________________<br><a href=3D"mailto:fot@autox.team.net"; rel=3D"=
nofollow" target=3D"_blank">fot@autox.team.net</a><br><br><a href=3D"http:/=
/www.fot-racing.com" rel=3D"nofollow" target=3D"_blank">http://www.fot-raci=
ng.com</a><br><br>Donate: <a href=3D"http://www.team.net/donate.html"; rel=
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l/fot</a><br>Unsubscribe/Manage: <a href=3D"http://autox.team.net/mailman/o=
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team.net/mailman/options/fot/fubog1@aol.com</a><br><br><br></div>
</div>
</div></div></div>_______________________________________________<b=
r>
<a href=3D"mailto:fot@autox.team.net"; target=3D"_blank">fot@autox.team.net<=
/a><br>
<br>
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Archive: <a href=3D"http://autox.team.net/archive"; rel=3D"noreferrer" targe=
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<br>
<br>
</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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