Subject: Re: [Fot] TR6 Porterfield R-4 Rear Brake Shoes - Carbotech relining

From: Mark Cook via Fot <[email-masked]>
Date: Wed, 22 May 2024 16:53:06 -0400

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All,

=20

I spoke with Carbotech this afternoon after John and Ken=E2=80=99s =
email.  Carbotech will reline brake shoes and are familiar with vintage =
racing and autocross requirements.

=20

Send the cores, along with brake drum specs (inside diameter so they can =
arc it correctly) and  your contact information (phone, email and =
address) to the Carbotech address below (not their Cleveland location).  =
 They will give you a call back regarding the compound to =
use/recommended, based on type of racing (or street), vehicle drum size =
etc.

=20

Carbotech Performance Brakes

4031 Dearborn Place N.W.

Concord, NC 28027

=20

Thanks,

=20

Mark

=20

=20

=20

=20

=20

=20

=20

From: Mark Cook [mailto:[email-masked]]=20
Sent: Wednesday, May 22, 2024 4:37 PM
To: 'John H. Hasty'; 'Ken Knight'
Cc: 'Friends of Triumph Group Email'
Subject: RE: [Fot] TR6 Porterfield R-4 Rear Brake Shoes

=20

John and Ken,

=20

Thanks and will give Carbotech a call =E2=80=93 was not aware they would =
reline brake shoes since it is not mentioned on their site.

=20

Do you use the XP8 or XP10 compound?

=20

Much appreciated,

=20

Mark

=20

From: John H. Hasty [mailto:[email-masked]]=20
Sent: Wednesday, May 22, 2024 2:34 PM
To: Ken Knight; Mark Cook; Friends of Triumph Group Email
Subject: RE: [Fot] TR6 Porterfield R-4 Rear Brake Shoes

=20

They are also in Charlotte, 877 899 5024 I think the shoes are made =
somewhere in Ohio but they can tell you

=20

=20

image001.png

=20

John H. Hasty

Of Counsel

Mullen Holland & Cooper P.A.

301 S. York St.,=20

P.O. Box 488

Gastonia, NC 28053

704.864.6751 (p) 704.861.8394 (f)

@mhc-law.com

=20

=20

=20

=20

From: Fot <[email-masked]> On Behalf Of Ken Knight via Fot
Sent: Wednesday, May 22, 2024 1:39 PM
To: Mark Cook <[email-masked]>; Friends of Triumph Group Email =
<[email-masked]>
Subject: Re: [Fot] TR6 Porterfield R-4 Rear Brake Shoes

=20

Carbotech.  Used them for years.  They are in TX, use the Google.  Good =
Luck, Ken

=20

Sent from Mail <https://go.microsoft.com/fwlink/?LinkId=3D550986>  for =
Windows

=20

Sent: Wednesday, May 22, 2024 9:35 AM
Subject: [Fot] TR6 Porterfield R-4 Rear Brake Shoes

=20

Porterfield is continuing to have production problems (since January) =
with the TR6 234 R-4 brake shoes due to curing issues and are trying a =
new resin.  In the meantime, is there another compatible product/brand =
for racing?

=20

I like to have a back up set.

=20

Thanks,

Mark Cook

=20

=20

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vlink=3D"#954F72" style=3D'word-wrap:break-word'><div =
class=3DWordSection1><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>All,<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>I spoke with Carbotech =
this afternoon after John and Ken=E2=80=99s email.=C2=A0 Carbotech will =
reline brake shoes and are familiar with vintage racing and autocross =
requirements.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>Send the cores, along =
with brake drum specs (inside diameter so they can arc it correctly) and =
=C2=A0your contact information (phone, email and address) to the =
Carbotech address below (not their Cleveland location).=C2=A0=C2=A0 They =
will give you a call back regarding the compound to use/recommended, =
based on type of racing (or street), vehicle drum size =
etc.<o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'margin-left:.5in'><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal =
style=3D'margin-left:.5in'><span style=3D'color:#1F497D'>Carbotech =
Performance Brakes<o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'margin-left:.5in'><span style=3D'color:#1F497D'>4031 Dearborn =
Place N.W.<o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'margin-left:.5in'><span style=3D'color:#1F497D'>Concord, NC =
28027<o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'margin-left:.5in'><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'>Thanks,<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'>Mark<o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'margin-left:.5in'><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal =
style=3D'margin-left:.5in'><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal =
style=3D'margin-left:.5in'><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal =
style=3D'margin-left:.5in'><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal =
style=3D'margin-left:.5in'><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><div><div =
style=3D'border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in'><p class=3DMsoNormal><b><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span>=
</b><span style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'> =
Mark Cook [mailto:[email-masked]] <br><b>Sent:</b> Wednesday, May =
22, 2024 4:37 PM<br><b>To:</b> 'John H. Hasty'; 'Ken =
Knight'<br><b>Cc:</b> 'Friends of Triumph Group =
Email'<br><b>Subject:</b> RE: [Fot] TR6 Porterfield R-4 Rear Brake =
Shoes<o:p></o:p></span></p></div></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>John and Ken,<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>Thanks and will give =
Carbotech a call =E2=80=93 was not aware they would reline brake shoes =
since it is not mentioned on their site.<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>Do you use the XP8 or =
XP10 compound?<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>Much =
appreciated,<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'>Mark<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><div><div =
style=3D'border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in'><p class=3DMsoNormal><b><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span>=
</b><span style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'> =
John H. Hasty [mailto:[email-masked]] <br><b>Sent:</b> Wednesday, =
May 22, 2024 2:34 PM<br><b>To:</b> Ken Knight; Mark Cook; Friends of =
Triumph Group Email<br><b>Subject:</b> RE: [Fot] TR6 Porterfield R-4 =
Rear Brake Shoes<o:p></o:p></span></p></div></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal><span =
style=3D'font-family:Aptos'>They are also in Charlotte, 877 899 5024 I =
think the shoes are made somewhere in Ohio but they can tell =
you<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-family:Aptos'><o:p>&nbsp;</o:p></span></p><div><p =
class=3DMsoNormal><span =
style=3D'font-family:Aptos;mso-ligatures:standardcontextual'><o:p>&nbsp;<=
/o:p></span></p><table class=3DMsoNormalTable border=3D0 cellspacing=3D0 =
cellpadding=3D0 style=3D'border-collapse:collapse'><tr><td width=3D246 =
valign=3Dtop style=3D'width:184.5pt;padding:0in 5.4pt 0in 5.4pt'><p =
class=3DMsoNormal style=3D'text-align:justify'><span =
style=3D'font-family:Aptos'><img width=3D229 height=3D150 =
id=3D"x__x005f_x0000_i1027" src=3D"cid:[email-masked]" =
alt=3Dimage001.png><span =
style=3D'mso-ligatures:standardcontextual'><o:p></o:p></span></span></p><=
/td><td width=3D312 valign=3Dtop style=3D'width:233.75pt;padding:0in =
5.4pt 0in 5.4pt'><p class=3DMsoNormal style=3D'background:white'><span =
style=3D'font-size:9.5pt;font-family:"Arial","sans-serif";color:#222222;m=
so-ligatures:standardcontextual'>&nbsp;</span><span =
style=3D'font-family:Aptos;mso-ligatures:standardcontextual'><o:p></o:p><=
/span></p><p class=3DMsoNormal =
style=3D'line-height:12.0pt;background:white'><span =
style=3D'font-family:Aptos;color:black;mso-ligatures:standardcontextual'>=
John H. Hasty</span><span =
style=3D'font-family:Aptos;mso-ligatures:standardcontextual'><o:p></o:p><=
/span></p><p class=3DMsoNormal =
style=3D'line-height:12.0pt;background:white'><span =
style=3D'font-family:Aptos;color:black;mso-ligatures:standardcontextual'>=
Of Counsel</span><span =
style=3D'font-family:Aptos;mso-ligatures:standardcontextual'><o:p></o:p><=
/span></p><p class=3DMsoNormal =
style=3D'line-height:12.0pt;background:white'><b><span lang=3DEN =
style=3D'font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F2E57;=
mso-ligatures:standardcontextual'>Mullen Holland &amp; Cooper =
P.A.</span></b><span =
style=3D'font-family:Aptos;mso-ligatures:standardcontextual'><o:p></o:p><=
/span></p><p class=3DMsoNormal =
style=3D'line-height:12.0pt;background:white'><span lang=3DEN =
style=3D'font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F2E57;=
mso-ligatures:standardcontextual'>301 S. York St., </span><span =
style=3D'font-family:Aptos;mso-ligatures:standardcontextual'><o:p></o:p><=
/span></p><p class=3DMsoNormal =
style=3D'line-height:12.0pt;background:white'><span lang=3DEN =
style=3D'font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F2E57;=
mso-ligatures:standardcontextual'>P.O. Box 488</span><span =
style=3D'font-family:Aptos;mso-ligatures:standardcontextual'><o:p></o:p><=
/span></p><p class=3DMsoNormal =
style=3D'line-height:12.0pt;background:white'><span lang=3DEN =
style=3D'font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F2E57;=
mso-ligatures:standardcontextual'>Gastonia, NC 28053</span><span =
style=3D'font-family:Aptos;mso-ligatures:standardcontextual'><o:p></o:p><=
/span></p><p class=3DMsoNormal =
style=3D'line-height:12.0pt;background:white'><span lang=3DEN =
style=3D'font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F2E57;=
mso-ligatures:standardcontextual'>704.864.6751&nbsp;</span><span =
lang=3DEN =
style=3D'font-size:10.0pt;font-family:"Arial","sans-serif";color:#7E8995;=
mso-ligatures:standardcontextual'>(p)&nbsp;</span><span lang=3DEN =
style=3D'font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F2E57;=
mso-ligatures:standardcontextual'>704.861.8394&nbsp;</span><span =
lang=3DEN =
style=3D'font-size:10.0pt;font-family:"Arial","sans-serif";color:#7E8995;=
mso-ligatures:standardcontextual'>(f)</span><span =
style=3D'font-family:Aptos;mso-ligatures:standardcontextual'><o:p></o:p><=
/span></p><p class=3DMsoNormal =
style=3D'line-height:12.0pt;background:white'><span =
style=3D'font-family:Aptos;color:#4472C4;mso-ligatures:standardcontextual=
'><a href=3D"http://mhc-law.com/" target=3D"_blank"><span lang=3DEN =
style=3D'font-size:10.0pt;font-family:"Arial","sans-serif";color:#4472C4'=
>mhc-law.com</span></a></span><span lang=3DEN =
style=3D'font-size:10.0pt;font-family:"Arial","sans-serif";color:#4472C4;=
mso-ligatures:standardcontextual'>&nbsp;|&nbsp;</span><span =
style=3D'font-family:Aptos;color:black;mso-ligatures:standardcontextual'>=
<a href=3D"mailto:[email-masked]">jhasty<span lang=3DEN =
style=3D'font-size:10.0pt;font-family:"Arial","sans-serif"'>@mhc-law.com<=
/span></a></span><span =
style=3D'font-family:Aptos;mso-ligatures:standardcontextual'><o:p></o:p><=
/span></p><p class=3DMsoNormal style=3D'background:white'><span =
style=3D'font-family:Aptos;color:black;mso-ligatures:standardcontextual'>=
&nbsp;</span><span =
style=3D'font-family:Aptos;mso-ligatures:standardcontextual'><o:p></o:p><=
/span></p><p class=3DMsoNormal =
style=3D'line-height:12.0pt;background:white'><span =
style=3D'font-family:Aptos;color:black;mso-ligatures:standardcontextual'>=
&nbsp;</span><span =
style=3D'font-family:Aptos;mso-ligatures:standardcontextual'><o:p></o:p><=
/span></p></td></tr></table><p class=3DMsoNormal><span =
style=3D'font-family:Aptos;mso-ligatures:standardcontextual'><o:p>&nbsp;<=
/o:p></span></p></div><p class=3DMsoNormal><span =
style=3D'font-family:Aptos'><o:p>&nbsp;</o:p></span></p><div><div =
style=3D'border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in'><p class=3DMsoNormal><b>From:</b> Fot =
&lt;[email-masked]&gt; <b>On Behalf Of </b>Ken Knight via =
Fot<br><b>Sent:</b> Wednesday, May 22, 2024 1:39 PM<br><b>To:</b> Mark =
Cook &lt;[email-masked]&gt;; Friends of Triumph Group Email =
&lt;[email-masked]&gt;<br><b>Subject:</b> Re: [Fot] TR6 Porterfield =
R-4 Rear Brake Shoes<o:p></o:p></p></div></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>Carbotech.&nbsp; Used them for years.&nbsp; They are =
in TX, use the Google.&nbsp; Good Luck, Ken<o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>Sent from <a =
href=3D"https://go.microsoft.com/fwlink/?LinkId=3D550986">Mail</a> for =
Windows<o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><div =
style=3D'border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in'><p class=3DMsoNormal><b>From: </b><a =
href=3D"mailto:[email-masked]">Mark Cook via Fot</a><br><b>Sent: =
</b>Wednesday, May 22, 2024 9:35 AM<br><b>To: </b><a =
href=3D"mailto:[email-masked]">Friends of Triumph Group =
Email</a><br><b>Subject: </b>[Fot] TR6 Porterfield R-4 Rear Brake =
Shoes<o:p></o:p></p></div><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>Porterfield is continuing to have production problems =
(since January) with the TR6 234 R-4 brake shoes due to curing issues =
and are trying a new resin.&nbsp; In the meantime, is there another =
compatible product/brand for racing?<o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>I like to =
have a back up set.<o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>Thanks,<o:p></o:p></p><p class=3DMsoNormal><br>Mark =
Cook<o:p></o:p></p><p class=3DMsoNormal><span =
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_______________________________________________
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---

From: greg powell via Fot <[email-masked]>
Date: Thu, 23 May 2024 18:25:08 -0700

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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">In my Morgan I run porterfield R4 with Dats=
un drums in the rear with hawk blue pads on the front discs. &nbsp;15 weeken=
ds of excellent braking so far with no need to change shoes/drums or pads/ro=
tors. &nbsp;<div>Greg P</div><div><br></div><div><br id=3D"lineBreakAtBeginn=
ingOfSignature"><div dir=3D"ltr">Sent from my iPhone</div><div dir=3D"ltr"><=
br>On May 23, 2024, at 5:40=E2=80=AFPM, DAVE HOGYE via Fot &lt;[email-masked]=
m.net&gt; wrote:<br><br></div><div dir=3D"ltr">=EF=BB=BF

 =20
  <meta charset=3D"UTF-8">=20
=20
=20
  <div style=3D"font-size: 12pt; font-family: helvetica,arial,sans-serif; co=
lor: #333333;">
   Excuse me for not commenting specifically about the rear shoes. &nbsp;I a=
lso use standard street shoes from Moss on the back of my TR3 with Datsun al=
uminum drums. &nbsp;No problems at all. &nbsp;Little wear as well. &nbsp;I=E2=
=80=99ve changed the front pads a number of times in comparison during my re=
latively short racing years.
  </div>=20
  <div class=3D"default-style" style=3D"font-size: 12pt; font-family: helvet=
ica,arial,sans-serif; color: #333333;">
   Dave H.
  </div>=20
  <blockquote type=3D"cite">=20
   <div>
    On 05/23/2024 3:55 PM PDT David Gott via Fot &lt;[email-masked]&gt; w=
rote:
   </div>=20
   <div>
    &nbsp;
   </div>=20
   <div>
    &nbsp;
   </div> I=E2=80=99m using stock shoes in the back of my TR4; seems to work=
 OK! &nbsp;:-) and yes, I=E2=80=99m typically braking pretty late and hard.=20=

   <div>
    &nbsp;
   </div>=20
   <div>
    I=E2=80=99m curious if anyone gets any real temperature on the rear brak=
es? &nbsp;Mine seem just a little warm coming off track=E2=80=A6. &nbsp;But m=
aybe others have cooked stock compound&nbsp;shoes?
   </div>=20
   <div>
    &nbsp;
   </div>=20
   <div>
    Dave G
    <br>
    <br>
    <br>=20
    <div class=3D"yahoo-signature">
     <a style=3D"font-size: 12px;" href=3D"https://mail.onelink.me/107872968=
?pid=3Dnativeplacement&amp;c=3DGlobal_Acquisition_YMktg_315_Internal_EmailSi=
gnature&amp;af_sub1=3DAcquisition&amp;af_sub2=3DGlobal_YMktg&amp;af_sub3=3D&=
amp;af_sub4=3D100000604&amp;af_sub5=3DEmailSignature__Static_">Sent from Yah=
oo Mail for iPhone</a>
    </div>=20
    <br>=20
    <p class=3D"yahoo-quoted-begin" style=3D"font-size: 15px; color: #8473ff=
; padding-top: 15px; margin-top: 0px;">On Thursday, May 23, 2024, 6:47 PM, M=
ark Cook via Fot &lt;[email-masked]&gt; wrote:</p>=20
    <blockquote>=20
     <div dir=3D"ltr">
      Seems like there are several options for front brake pads, just not ma=
ny for the rear brake shoes.&nbsp; Outside of stock compounds for brake shoe=
s which are not compatible for racing, racing compounds seem limited to Port=
erfield R-4, Carbotech, maybe Racetorations and Cambridge Motorsports' "upra=
ted Mintex" shoes.&nbsp; I understand Revington might make something.&nbsp; P=
roblem is not knowing the temp specs and torque/bite on these latter shoes b=
ased on the website descriptions.
      <br clear=3D"none">
      <br clear=3D"none">Will share anything new that I learn.
      <br clear=3D"none">
      <br clear=3D"none">Thanks
      <br clear=3D"none">
      <br clear=3D"none">Mark
      <br clear=3D"none">
      <br clear=3D"none">-----Original Message-----
      <br clear=3D"none">From: Fot [mailto:[email-masked]] On Be=
half Of Barr, Scott via Fot
      <br clear=3D"none">Sent: Thursday, May 23, 2024 5:27 PM
      <br clear=3D"none">To: Scott Janzen; finishing Touch
      <br clear=3D"none">Cc: <a href=3D"mailto:[email-masked]" shape=3D"=
rect">[email-masked]</a> <a href=3D"mailto:[email-masked]" shape=3D"=
rect">[email-masked]</a>
      <br clear=3D"none">Subject: Re: [Fot] TR6 Porterfield R-4 Rear Brake S=
hoes - Carbotech relining
      <br clear=3D"none">
      <br clear=3D"none">I loved the Carbotech pads when I was using them on=
 my GT6 for track days.&nbsp; I never had the odd wear problems that have be=
en described.&nbsp; I always used the Hawk Blues on my Spitfire racer and li=
ked those as well, though they didn't have to deal with the same heat as was=
 generated by my GT6 brakes at Blackhawk.&nbsp; The Hawk Blues I use on my S=
pec Racer Ford also work really well and stand up to enough heat to turn the=
 rotors blue.&nbsp; If you're unhappy with the Carbotech pads, the Hawk Blue=
s are a good option, in my opinion.
      <br clear=3D"none">
      <br clear=3D"none">Scott (B.)
      <br clear=3D"none">
      <br clear=3D"none">
      <br clear=3D"none">-----Original Message-----
      <br clear=3D"none">From: Fot &lt;<a href=3D"mailto:[email-masked]=
eam.net" shape=3D"rect">[email-masked]</a>&gt; On Behalf Of Scot=
t Janzen via Fot
      <br clear=3D"none">Sent: Thursday, May 23, 2024 4:02 PM
      <br clear=3D"none">To: finishing Touch &lt;<a href=3D"mailto:fintouch@=
ptd.net" shape=3D"rect">[email-masked]</a>&gt;
      <br clear=3D"none">Cc: Mark Cook via Fot &lt;<a href=3D"mailto:fot@aut=
ox.team.net" shape=3D"rect">[email-masked]</a>&gt;
      <br clear=3D"none">Subject: Re: [Fot] TR6 Porterfield R-4 Rear Brake S=
hoes - Carbotech relining
      <br clear=3D"none">
      <br clear=3D"none">I agree. I get the pre-heated ones too. Carbotech s=
tops as well or better, and last longer than any other pads I=EF=BF=BDve tri=
ed, and I=EF=BF=BDve tried quite a few.
      <br clear=3D"none">Sent from my iPhone
      <br clear=3D"none">
      <br clear=3D"none">&gt; On May 23, 2024, at 4:10=EF=BF=BDPM, finishing=
 Touch via Fot &lt;<a href=3D"mailto:[email-masked]" shape=3D"rect">fot@=
autox.team.net</a>&gt; wrote:
      <br clear=3D"none">&gt;=20
      <br clear=3D"none">&gt; ?I'm on my 3rd set of Carbotech front pads for=
 my TR6 race car and never had any issues....I do spend the extra $ and have=
 them pre-bedded.
      <br clear=3D"none">&gt;=20
      <br clear=3D"none">&gt; Mike Kurtz
      <br clear=3D"none">&gt; #51 TR6
      <br clear=3D"none">&gt;=20
      <br clear=3D"none">&gt;=20
      <br clear=3D"none">&gt;=20
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From: Bob Kramer Gmail via Fot <[email-masked]>
Date: Thu, 23 May 2024 21:45:07 -0500

We’ve been running stock shoes on the ChampCar TR6 for a long time now. We‘ve needed the extra life to make it through a weekend. I’ve been running stock shoes in the vintage cars for decades. Occasionally one begins to crumble. I always err on the loose side of show adjustment and am probably giving up some rear braking.

On the endurance car, the addition of a splitter and a read wing last year has changed the brake dynamics. While we dropped lap times the  brakes can’t survive. We’ve cooked both the front and the back. 
We are going to have to upgrade to Wilwood all around. 

You only get one chance at life, make it a TRIUMPH.

> On May 23, 2024, at 9:04 PM, yellow04 via Fot <[email-masked]> wrote:
> 
> My issues with Carbotech has not been the quality of the pads, it has been the shoes for the rear drums. I have had a couple of failures where the lining breaks up at the top or bottom edge, and once it starts crumbling, it is game over. I got to the point where I was mixing and matching shoes from different sets to actually get 4 shoes to wear out evenly.
> 
> Last year there was a thread here about running stock linings on the rear shoes, and the first thing in my head was that's nuts. But taking into account where those racers were finishing, I decided the worst thing that would happen is I needed to swap brake shoes in the paddock.
> 
> OK, I didn't go with the Moss Motors "who knows where they came from" shoes, I went to Rock Auto and spent all the money on a set of genuine Raybestos shoes, currently available for a whopping $32 plus shipping. I ran them for the first time at Summit Point last weekend and they seemed fine. Obviously, until I put eyes on them the jury is still out, but I really didn't think I could tell any difference in stopping power. Most importantly, my lap times were OK and consistent.
> 
> Thinking I probably had less coefficient of braking, I did nudge the balance bar a tad to the rear, and after the first session where I did a completely crap job of bedding them in, I never thought about them all weekend.
> 
> Henry
> 
>> On 2024-05-23 10:36, DAVE HOGYE via Fot wrote:
>> I used Carbotech a few times for front pads.  I had lots of problems
>> with them.  Quality control is/was terrible.  The backing plate was
>> ground down to the friction material at the sides of the pads and they
>> were not square.  So, there was far to much clearance in the caliper
>> slot.  This caused the piston to torque once the brakes were applied.
>> This makes the pads wear at an extreme angle and the pistons were
>> leaving a witness mark in the bore from the induced torquing and side
>> load.  The hot friction material was making contact with the caliper
>> casting.  I talked with Carbotech a few times about this and they were
>> completely defensive and said they sell a lot of these pads and no one
>> ever complained about this problem before.  They were not willing to
>> check quality control or make them correctly.  I took many photos and
>> some video of exactly what was happening and made a direct comparison
>> to standard pads and Hawk pads.  The standard pads were NOS from a
>> quality manufacturer, which I can't recall at the moment.  Standard
>> backing plate have a pretty tight fit in the caliper.  I think I found
>> .010" clearance.  I found that the Hawk pads have very consistent
>> production quality.  So I switched to Hawk.  I did like the feel of
>> the Carbotech pads, but they really caused problems.
>> I'll share some photos and later.
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> 

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