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No one can tell you what the optimum tire pressure should be because there =
are just too many variables. I can say the the best pressure for your tires=
is dictated by taking the temps at 3 spots across the tire coming off trac=
k. If they are hotter in the center you have too much pressure, if they are=
hotter on the inside and outside then you need more pressure. Most tires r=
un hotter on the inside because of camber, caster and or toe settings, if t=
his is the case the center number sis optimal between the inner and outer n=
umber. Don't be surprised if all 4 tires are different and they will vary b=
etween tracks as well.
Happy tuning!
Rick Parent
"Doing the right thing is always the right thing, regardless of consequence=
s"
=20
On Tuesday, September 14, 2021, 12:48:57 AM EDT, Enquiries Road & Track=
via Fot <fot@autox.team.net> wrote: =20
=20
interesting, but still does not specify the optimum tread temperature
in current model racing with both slicks and semi slicks, there is a wide r=
ange between tyre makers and compounds, with many racers trying several bef=
ore settling on something that works for them
very few racers here use Hoosiers
most "old" cars with small engines/limited HP, seem to struggle to getto th=
e optimum tread temperature, which=C2=A0is often 60-70C.
Sometimes, we have had to decrease tyre width to get the temperature up to =
'sensible" values
Terry
On Tue, Sep 14, 2021 at 5:43 AM Allen Washatko via Fot <fot@autox.team.net>=
wrote:
FOT
In regards to my question regarding temperature operating range for a 225/5=
0 R15 Hoosier Speedster tire, I have the following from Jess Speer/Hoosier:
For my car weighing 2035 lbs, hot tire pressure should be in the 26-28 lbs =
range.=20
Sent from my iPhone
_______________________________________________
fot@autox.team.net
http://www.fot-racing.com
Archive: http://autox.team.net/archive http://www.team.net/pipermail/fot
dandtrack.net.au
_______________________________________________
fot@autox.team.net
http://www.fot-racing.com
Archive: http://autox.team.net/archive http://www.team.net/pipermail/fot
tt.net
=20
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<html><head></head><body><div class=3D"ydpa8c86db4yahoo-style-wrap" style=
=3D"font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:16px=
;"><div><div dir=3D"ltr" data-setdir=3D"false">No one can tell you what the=
optimum tire pressure should be because there are just too many variables.=
I can say the the best pressure for your tires is dictated by taking the t=
emps at 3 spots across the tire coming off track. If they are hotter in the=
center you have too much pressure, if they are hotter on the inside and ou=
tside then you need more pressure. Most tires run hotter on the inside beca=
use of camber, caster and or toe settings, if this is the case the center n=
umber sis optimal between the inner and outer number. Don't be surprised if=
all 4 tires are different and they will vary between tracks as well.</div>=
<div dir=3D"ltr" data-setdir=3D"false"><br></div><div dir=3D"ltr" data-setd=
ir=3D"false">Happy tuning!</div><div><br></div><div class=3D"ydpa8c86db4sig=
nature"><div style=3D"font-family:Helvetica, Arial, sans-serif;font-size:16=
px;"><div dir=3D"ltr">Rick Parent</div><div dir=3D"ltr"><br></div><div dir=
=3D"ltr">"<i>Doing the right thing is always the right thing, regardless of=
consequences</i>"</div><div dir=3D"ltr"><br></div></div></div></div>
<div><br></div><div><br></div>
=20
</div><div id=3D"yahoo_quoted_2521562666" class=3D"yahoo_quoted">
<div style=3D"font-family:'Helvetica Neue', Helvetica, Arial, s=
ans-serif;font-size:13px;color:#26282a;">
=20
<div>
On Tuesday, September 14, 2021, 12:48:57 AM EDT, Enquir=
ies Road & Track via Fot <fot@autox.team.net> wrote:
</div>
<div><br></div>
<div><br></div>
<div><div id=3D"yiv3390497730"><div><div dir=3D"ltr">intere=
sting, but still does not specify the optimum tread temperature<div><br cle=
ar=3D"none"></div><div>in current model racing with both slicks and semi sl=
icks, there is a wide range between tyre makers and compounds, with many ra=
cers trying several before settling on something that works for them</div><=
div><br clear=3D"none"></div><div>very few racers here use Hoosiers</div><d=
iv><br clear=3D"none"></div><div>most "old" cars with small engines/limited=
HP, seem to struggle to getto the optimum tread temperature, which is=
often 60-70C.</div><div><br clear=3D"none"></div><div>Sometimes, we have h=
ad to decrease tyre width to get the temperature up to 'sensible" values</d=
iv><div><br clear=3D"none"></div><div>Terry<br clear=3D"all"><div><div clas=
s=3D"yiv3390497730gmail_signature" dir=3D"ltr"><div dir=3D"ltr"><div><div d=
ir=3D"ltr"><div><div dir=3D"ltr"><div><div dir=3D"ltr"><div><div dir=3D"ltr=
"><div><div dir=3D"ltr"><div><br clear=3D"none"></div></div></div></div></d=
iv></div></div></div></div></div></div></div></div></div></div></div><br cl=
ear=3D"none"><div class=3D"yiv3390497730gmail_quote"><div class=3D"yiv33904=
97730yqt9675368459" id=3D"yiv3390497730yqtfd85482"><div class=3D"yiv3390497=
730gmail_attr" dir=3D"ltr">On Tue, Sep 14, 2021 at 5:43 AM Allen Washatko v=
ia Fot <<a rel=3D"nofollow noopener noreferrer" shape=3D"rect" ymailto=
=3D"mailto:fot@autox.team.net"; target=3D"_blank" href=3D"mailto:fot@autox.t=
eam.net">fot@autox.team.net</a>> wrote:<br clear=3D"none"></div></div><b=
lockquote class=3D"yiv3390497730gmail_quote" style=3D"margin:0px 0px 0px 0.=
8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex;"><div class=3D=
"yiv3390497730yqt9675368459" id=3D"yiv3390497730yqtfd37418">FOT<br clear=3D=
"none">
<br clear=3D"none">
In regards to my question regarding temperature operating range for a 225/5=
0 R15 Hoosier Speedster tire, I have the following from Jess Speer/Hoosier:=
<br clear=3D"none">
For my car weighing 2035 lbs, hot tire pressure should be in the 26-28 lbs =
range. <br clear=3D"none">
<br clear=3D"none">
Sent from my iPhone<br clear=3D"none">
_______________________________________________<br clear=3D"none">
<a rel=3D"nofollow noopener noreferrer" shape=3D"rect" ymailto=3D"mailto:fo=
t@autox.team.net" target=3D"_blank" href=3D"mailto:fot@autox.team.net";>fot@=
autox.team.net</a><br clear=3D"none">
<br clear=3D"none">
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v3390497730yqtfd25959">
</div></div></div><div class=3D"yqt9675368459" id=3D"yqtfd43028">__________=
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_______________________________________________
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http://www.fot-racing.com
Archive: http://autox.team.net/archive http://www.team.net/pipermail/fot
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