 C71 Hankook tire pressure |
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| sixaddict |
 Jun 12 2011, 06:42 PM
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#1
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Senior Member  Group: Members Posts: 800 Joined: 22-January 09 From: Panama City Beach, FL Member No.: 9,961 Region Association: South East States 
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First use of new AX tires today with ok but not stellar results. Forgot to heat cycle....but need to know recommended pressure....hot cold or both
Using on GT six with 3 liter..245 X 45 X 15 if that helps Thanks Terry |
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| sixaddict |
Jun 13 2011, 05:32 PM
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#2
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Senior Member Group: Members Posts: 800 Joined: 22-January 09 From: Panama City Beach, FL Member No.: 9,961 Region Association: South East States
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No one using C71s ?? Makes that decision a murky one !
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| 70_914 |
Jun 13 2011, 06:45 PM
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#3
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Member Group: Members Posts: 395 Joined: 4-December 09 From: Roy, WA Member No.: 11,096 Region Association: Pacific Northwest |
Isn't tire pressure something that is based on more variables than just tire choice? Weight bias, suspension setup, track layout.... (IMG:style_emoticons/default/confused24.gif)
Tire temperatures across the tread to fine-tune the tire pressure to each car is the best way to go, if I remember correctly my days in formula SAE. |
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| sixaddict |
Jun 14 2011, 07:31 PM
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#4
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Senior Member Group: Members Posts: 800 Joined: 22-January 09 From: Panama City Beach, FL Member No.: 9,961 Region Association: South East States
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What you say is not incorrect as you progress to very fine tuning however specific tires have pressures they "like"...just looking for someone running C71s that could help me.
QUOTE(70_914 @ Jun 13 2011, 04:45 PM)  Isn't tire pressure something that is based on more variables than just tire choice? Weight bias, suspension setup, track layout.... (IMG:style_emoticons/default/confused24.gif) Tire temperatures across the tread to fine-tune the tire pressure to each car is the best way to go, if I remember correctly my days in formula SAE. |
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| sixaddict |
Jun 29 2011, 07:00 AM
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#5
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Senior Member Group: Members Posts: 800 Joined: 22-January 09 From: Panama City Beach, FL Member No.: 9,961 Region Association: South East States
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Anybody ?? (IMG:style_emoticons/default/sad.gif)
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| J P Stein |
Jun 29 2011, 08:28 AM
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#6
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Irrelevant old fart Group: Members Posts: 8,797 Joined: 30-December 02 From: Vancouver, WA Member No.: 45 Region Association: None |
I've never seen them used....not talked to anyone that has (till now (IMG:style_emoticons/default/biggrin.gif) ).
That size is a pretty big cross section for a pretty light car. I'm assuming it is square. I'll assume they are radials & you've got the normal negative camber that radials like. A WAG would be somewhere under 30 psi.....say 26 front-28 rear for 2-3 passes then see whatcha got (temps, roll over, wear). Typically the first pass or 2 is just scrubbig off the mold release.....then they'll get to work. |
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