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When I took my Roadster to a SCCA track nite at Portland the stock bakes su=
cked big time. But then the speed I was pulling with a KA did not help. Cha=
nged fronts to a street comp pad and did it help. Car now stops were it slo=
wed down before.I use=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 KFP gold compound=C2=A0=
=C2=A0 and find they work on the street just for me as well as the track.=
=C2=A0 Did have to grind down to fit as they were too wide.rich From: G=
ary Ault via Datsun-roadsters <datsun-roadsters@autox.team.net>
To: Paul Kort <paulsdatsunstuff@gmail.com>=20
Cc: "datsun-roadsters@autox.team.net" <datsun-roadsters@autox.team.net>; ph=
ilip erickson <fj20spl311@yahoo.com>=20
Sent: Tuesday, September 8, 2015 11:05 AM
Subject: Re: [Roadsters] Brakes Phil Erickson
=20
So, there you go. =C2=A0Thanks, Paul.
Gary
Sent from my mobile phone.
-------- Original message --------
From: Paul Kort <paulsdatsunstuff@gmail.com>=20
Date: 09/08/2015 6:04 AM (GMT-06:00)=20
To: Gary and Cindy Ault <aultgc@att.net>=20
Cc: philip erickson <fj20spl311@yahoo.com>, datsun-roadsters@autox.team.net=
=20
Subject: Re: [Roadsters] Brakes Phil Erickson=20
=C2=A0 I've crewed for three roadsters, two 1600s in SCCA G PROD and one 20=
00 racing the vintage circuit.=C2=A0 All ran with stock brakes, but with ra=
cing pads up front.=C2=A0 They all seemed to stop just fine!
Paul
Ohio
On Tue, Sep 8, 2015 at 12:14 AM, Gary and Cindy Ault via Datsun-roadsters <=
datsun-roadsters@autox.team.net> wrote:
I have found that stock roadster brakes, properly set up and adjusted, work=
just fine in non-racing applications.=C2=A0 I have both early (1966) and l=
ater (1967-1/2) cars.=C2=A0 I have had the '66 1600 with a U20 motor in it =
for over 40 years.
Gary
From: philip erickson via Datsun-roadsters <datsun-roadsters@autox.te=
am.net>
To: "datsun-roadsters@autox.team.net" <datsun-roadsters@autox.team.net>=20
Sent: Tuesday, September 1, 2015 10:39 PM
Subject: [Roadsters] Brakes Phil Erickson
=20
I tried to send this, but from the wrong email.....so I think it got cut.
It's very difficult to guess on the braking response of a wheel cylinder si=
ze change on a disc / drum set-up.
The response / braking torque to pressure is Linear with disc brakes and sq=
uared or even cubed with drum brakes.=C2=A0 Best to use a proportioning val=
ve on the rear to limit braking torque.
A proportioning valve is miss named as it changes the pressure response to =
pedal travel - which flattens the torque response of the drum brake.
Phil
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=20
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<html><body><div style=3D"color:#000; background-color:#fff; font-family:He=
lveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;fo=
nt-size:16px"><div><span></span></div><div>When I took my Roadster to a SCC=
A track nite at Portland the stock bakes sucked big time. But then the spee=
d I was pulling with a KA did not help. Changed fronts to a street comp pad=
and did it help. Car now stops were it slowed down before.</div><div id=3D=
"yui_3_16_0_1_1441740286429_4978" dir=3D"ltr">I use =
KFP gold compound and find they work on the street just =
for me as well as the track. Did have to grind down to fit as they we=
re too wide.</div><div id=3D"yui_3_16_0_1_1441740286429_5063" dir=3D"ltr">r=
ich</div><div id=3D"yui_3_16_0_1_1441740286429_4593" style=3D"font-family: =
HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;=
font-size: 16px;"> <div id=3D"yui_3_16_0_1_1441740286429_4592" style=3D"fo=
nt-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, =
sans-serif; font-size: 16px;"> <div id=3D"yui_3_16_0_1_1441740286429_4591" =
dir=3D"ltr"> <hr size=3D"1" id=3D"yui_3_16_0_1_1441740286429_4597"> <font =
id=3D"yui_3_16_0_1_1441740286429_4590" face=3D"Arial" size=3D"2"> <b><span =
style=3D"font-weight:bold;">From:</span></b> Gary Ault via Datsun-roadsters=
<datsun-roadsters@autox.team.net><br> <b id=3D"yui_3_16_0_1_14417402=
86429_5065"><span id=3D"yui_3_16_0_1_1441740286429_5064" style=3D"font-weig=
ht: bold;">To:</span></b> Paul Kort <paulsdatsunstuff@gmail.com> <br>=
<b id=3D"yui_3_16_0_1_1441740286429_5067"><span id=3D"yui_3_16_0_1_14417402=
86429_5066" style=3D"font-weight: bold;">Cc:</span></b> "datsun-roadsters@a=
utox.team.net" <datsun-roadsters@autox.team.net>; philip erickson <=
;fj20spl311@yahoo.com> <br> <b><span style=3D"font-weight: bold;">Sent:<=
/span></b> Tuesday, September 8, 2015 11:05 AM<br> <b><span style=3D"font-w=
eight: bold;">Subject:</span></b> Re: [Roadsters] Brakes Phil Erickson<br> =
</font> </div> <div class=3D"y_msg_container" id=3D"yui_3_16_0_1_1441740286=
429_4782"><br><div id=3D"yiv3742972722"><div id=3D"yui_3_16_0_1_14417402864=
29_4781">
=20
<div id=3D"yui_3_16_0_1_1441740286429_4783">So, there you go. Thanks,=
Paul.</div><div id=3D"yui_3_16_0_1_1441740286429_4786"><br></div><div id=
=3D"yui_3_16_0_1_1441740286429_4780">Gary</div><div id=3D"yui_3_16_0_1_1441=
740286429_4785"><br></div><div><br></div><div><br></div><div id=3D"yiv37429=
72722composer_signature">Sent from my mobile phone.</div><br><br>-------- O=
riginal message --------<br>From: Paul Kort <paulsdatsunstuff@gmail.com&=
gt; <br>Date: 09/08/2015 6:04 AM (GMT-06:00) <br>To: Gary and Cindy Ault =
<aultgc@att.net> <br>Cc: philip erickson <fj20spl311@yahoo.com>=
, datsun-roadsters@autox.team.net <br>Subject: Re: [Roadsters] Brakes Phil =
Erickson <br><br><div dir=3D"ltr"><div><div> I've crewed for three ro=
adsters, two 1600s in SCCA G PROD and one 2000 racing the vintage circuit.&=
nbsp; All ran with stock brakes, but with racing pads up front. They =
all seemed to stop just fine!<br><br></div>Paul<br></div>Ohio<br></div><div=
class=3D"yiv3742972722gmail_extra"><br><div class=3D"yiv3742972722gmail_qu=
ote">On Tue, Sep 8, 2015 at 12:14 AM, Gary and Cindy Ault via Datsun-roadst=
ers <span dir=3D"ltr"><<a href=3D"mailto:datsun-roadsters@autox.team.net=
" target=3D"_blank" rel=3D"nofollow" ymailto=3D"mailto:datsun-roadsters@aut=
ox.team.net">datsun-roadsters@autox.team.net</a>></span> wrote:<br><bloc=
kquote class=3D"yiv3742972722gmail_quote" style=3D"margin:0 0 0 .8ex;border=
-left:1px #ccc solid;padding-left:1ex;"><div><div style=3D"color:#000;backg=
round-color:#fff;font-family:Courier New, courier, monaco, monospace, sans-=
serif;font-size:16px;"><div dir=3D"ltr"><span>I have found that stock roads=
ter brakes, properly set up and adjusted, work just fine in non-racing appl=
ications. I have both early (1966) and later (1967-1/2) cars. I=
have had the '66 1600 with a U20 motor in it for over 40 years.</span></di=
v><div dir=3D"ltr"><span><br></span></div><div dir=3D"ltr"><span>Gary</span=
></div><br> <div style=3D"font-family:Courier New, courier, monaco, monosp=
ace, sans-serif;font-size:16px;"> <div style=3D"font-family:HelveticaNeue, =
Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px;=
"> <div dir=3D"ltr"> <hr size=3D"1"> <font face=3D"Arial" size=3D"2"> <b><=
span style=3D"font-weight:bold;">From:</span></b> philip erickson via Datsu=
n-roadsters <<a href=3D"mailto:datsun-roadsters@autox.team.net"; target=
=3D"_blank" rel=3D"nofollow" ymailto=3D"mailto:datsun-roadsters@autox.team.=
net">datsun-roadsters@autox.team.net</a>><br> <b><span style=3D"font-wei=
ght:bold;">To:</span></b> "<a href=3D"mailto:datsun-roadsters@autox.team.ne=
t" target=3D"_blank" rel=3D"nofollow" ymailto=3D"mailto:datsun-roadsters@au=
tox.team.net">datsun-roadsters@autox.team.net</a>" <<a href=3D"mailto:da=
tsun-roadsters@autox.team.net" target=3D"_blank" rel=3D"nofollow" ymailto=
=3D"mailto:datsun-roadsters@autox.team.net";>datsun-roadsters@autox.team.net=
</a>> <br> <b><span style=3D"font-weight:bold;">Sent:</span></b> Tuesday=
, September 1, 2015 10:39 PM<br> <b><span style=3D"font-weight:bold;">Subje=
ct:</span></b> [Roadsters] Brakes Phil Erickson<br> </font> </div> <div><b=
r><div><div><div style=3D"color:#000;background-color:#fff;font-family:verd=
ana, helvetica, sans-serif;font-size:16px;"><div dir=3D"ltr"> I tried to s=
end this, but from the wrong email.....so I think it got cut.</div><div dir=
=3D"ltr"><br></div><div dir=3D"ltr">It's very difficult to guess on the bra=
king response of a wheel cylinder size change on a disc / drum set-up.<br>T=
he
response / braking torque to pressure is Linear with disc brakes and=20
squared or even cubed with drum brakes. Best to use a proportioning=
=20
valve on the rear to limit braking torque.<br>A proportioning valve is=20
miss named as it changes the pressure response to pedal travel - which=20
flattens the torque response of the drum brake.</div><div dir=3D"ltr"><br><=
/div><div dir=3D"ltr">Phil</div></div></div></div><br>_____________________=
___________________<br><br><a href=3D"mailto:datsun-roadsters@autox.team.ne=
t" target=3D"_blank" rel=3D"nofollow" ymailto=3D"mailto:datsun-roadsters@au=
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<br></blockquote></div><br></div>
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