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Re: [Fot] Race Car Brake Calipers

To: Scott Janzen <>, STEPHEN BOROWSKI <>
Subject: Re: [Fot] Race Car Brake Calipers
From: Mike Jackson <>
Date: Tue, 1 Dec 2015 17:57:21 -0500 (GMT-05:00)
Cc: FOT List <>
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<html><head><style type=3D"text/css"><!-- DIV {margin:0px;} --></style></he=
ad><body><div style=3D"font-size: 16px;color: rgb(0, 0, 0);font-family: ari=
al, sans-serif;">I had planned on staying out of this but my fingers have o=
ver ruled my brain....<div><br></div><div>My poor old TR3 has NEVER faded a=
 brake at any race anywhere! &nbsp;That includes an amazing bumper to bumpe=
r race with an ex IMSA, 6cyl Vitesse at Road America at a previous TR reuni=
on. &nbsp;I led him twice and we finished with a separation of a few inches=
. &nbsp;There was no other 4 cyl Triumph within sight. &nbsp;Similarly at t=
racks as brutal on brakes as Sebring at the 12 hr support race. &nbsp;Ran i=
t many times. &nbsp;NO FADE, even at the old hairpin config.</div><div><br>=
</div><div>You are working on this problem too hard. &nbsp; once a=
dvised by an old, successful pro racer "more throttle, less brake"</div><di=
v><br></div><div>The real issue to worry about is rear axles, front spindle=
s and front and rear hubs. &nbsp;Modern tires are the villain here, not bra=
kes. &nbsp;Actually, modern tires make the brake issue smaller.</div><div><=
br></div><div>Mike Jackson<br><br><blockquote style=3D"padding-left: 5px; m=
argin-left: 0px; border-left: #0000ff 2px solid; font-weight: normal; font-=
style: normal; text-decoration: none; font-size: 10pt; font-family: arial,s=
ans-serif; color: black;">-----Original Message-----
<br>From: Scott Janzen <>
<br>Sent: Dec 1, 2015 2:59 PM
<br>Cc: FOT List <>
<br>Subject: Re: [Fot] Race Car Brake Calipers

<br><br><zzzhtml><zzzhead></zzzhead><zzzbody style=3D"word-wrap: break-word=
; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Brakes=
 are definitely a limiting factor in many vintage cars. &nbsp;One of the th=
ings that keep them vintage. &nbsp;The rules for the three clubs below esse=
ntially say - calipers of the same size and number of pistons, rotors ditto=
.<div><br></div><div>SVRA says -&nbsp;<span class=3D"Apple-style-span" styl=
e=3D"font-family: Arial; font-size: 12px; ">3. Alternate rotors and drums o=
f the same diameter and thickness are permitted. Rotors may be
drilled or grooved.</span><div class=3D"column"><p><span style=3D"font-size=
: 9.000000pt; font-family: 'Arial'">4. Alternate calipers or wheel cylinder=
s must be of the same material, design and number of pistons
as the original component. There must be no increase in the frictional surf=
ace of the pads or shoes&nbsp;</span></p>
=09=09</div><p><span style=3D"font-size: 9.000000pt; font-family: 'Arial'">=
VRG &nbsp;-&nbsp;</span><span class=3D"Apple-style-span" style=3D"color: rg=
b(36, 93, 63); font-family: Arial, Helvetica, sans-serif; font-size: 14px; =
line-height: 18px; ">Brakes must be the original type (disc, drum), size, a=
nd design as supplied by the manufacturer, or listed option, for the model.=
&nbsp; Updating from drum to disc will result in reclassification if eligib=
ility timeline (e.g. 1960) is crossed.&nbsp; Lining and pad materials are f=
ree.&nbsp; Rotors may be drilled or grooved, but must be same diameter, thi=
ckness, and material as originally supplied.&nbsp; Modern aftermarket calip=
ers are not permitted. &nbsp;</span></p><div>VDCA -&nbsp;<span class=3D"App=
le-style-span" style=3D"color: rgb(153, 51, 0); font-family: Geneva; ">Brak=
ing systems must be of the same type as standard for the year of manufactur=
e or as homologated by the original manufacturer for that year.&nbsp; Updat=
ing or backdating is not allowed.</span></div><p class=3D"MsoNormal" style=
=3D"color: rgb(0, 0, 0); font-family: georgia, 'Times New Roman', Times; fo=
nt-size: medium; font-style: normal; font-variant: normal; font-weight: nor=
mal; letter-spacing: normal; line-height: normal; orphans: auto; text-align=
: start; text-transform: none; white-space: normal; widows: auto; word-spac=
ing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 2=
04); text-indent: -20pt; margin-left: 38pt;"><font color=3D"#993300"><span =
style=3D"font-family: Geneva;">1.<span style=3D"font-style: normal; font-va=
riant: normal; font-weight: normal; font-size: 7pt; line-height: normal; fo=
nt-family: 'Times New Roman';">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</=
span>Aftermarket brake calipers are prohibited</span></font></p><div><br></=
div><div><div>On Dec 1, 2015, at 2:24 PM, STEPHEN BOROWSKI wrote:</div><br =
class=3D"Apple-interchange-newline"><div><div style=3D"color:#000; backgrou=
nd-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial,=
 Lucida Grande, sans-serif;font-size:12px"><div id=3D"yui_3_16_0_1_14489968=
38782_3858"><br>Hello All,</div><div id=3D"yui_3_16_0_1_1448996838782_3890"=
>I am starting the selection for front brakes on my TR4 racer. Naturally th=
e old stock ones are out.&nbsp;Are the Toyota four piston calipers good eno=
ugh? They are less expensive and easy to get, with disks and assorted pads.=
 Which after market models work well and bolt wright in? Which disks work t=
he best and last? 10 inch, 10.5 inch -- bigger or smaller?</div><div id=3D"=
yui_3_16_0_1_1448996838782_3989">All comments are welcome!</div><div id=3D"=
yui_3_16_0_1_1448996838782_3990">&nbsp;</div><div id=3D"yui_3_16_0_1_144899=
6838782_3991">Thank You,</div><div id=3D"yui_3_16_0_1_1448996838782_3992">S=
teve &amp; Matthew</div><div id=3D"yui_3_16_0_1_1448996838782_3993">Florida=
 TR4 Racing</div></div></div>______________________________________________=
_<br><a target=3D"_blank" href=3D"";>
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