Tiars, melted |
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Tiars, melted |
J P Stein |
Oct 20 2003, 01:02 PM
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#1
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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 |
Some tires for your perusal. 150 minutes of track time and a drive home.
Can any suspension gurus learn anything form these? Attached image(s) |
J P Stein |
Oct 20 2003, 01:03 PM
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#2
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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 |
The quick brown fox jumped over the lazy bridge
Attached image(s) |
Brad Roberts |
Oct 20 2003, 01:05 PM
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#3
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914 Freak! Group: Members Posts: 19,148 Joined: 23-December 02 Member No.: 8 Region Association: None |
Get closer with the camera. If you have too.. shoot two pics splitting the tire down the center.
A lot of what tire engineers gather info wise from a tires is done by "feel".. but just seeing tires tell alot about it and what it has done. B |
Brad Roberts |
Oct 20 2003, 01:07 PM
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#4
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914 Freak! Group: Members Posts: 19,148 Joined: 23-December 02 Member No.: 8 Region Association: None |
Just the first response from me:
It looks like the fronts are getting hotter than the rears.. Like the car might have been understeering a tad and you where compensating by more steering input. The rears look like they where on vacation. B |
Brad Roberts |
Oct 20 2003, 01:08 PM
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#5
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914 Freak! Group: Members Posts: 19,148 Joined: 23-December 02 Member No.: 8 Region Association: None |
Get some paint on the damn fenders... The primer look only works on "Rat Rods"
B |
J P Stein |
Oct 20 2003, 01:15 PM
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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 |
Thanx, I get a lot of "compliments" on the paint job.
"Rat Rod"?....that works. (IMG:style_emoticons/default/laugh.gif) You're right about the push....just a tad... which is safe for the big track.....safe is gud for a first timer. The loud pedal would correct it, tho. The rears get hotter than the fronts at AX....didn't have a temp tester at the track. |
Jeroen |
Oct 20 2003, 01:16 PM
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#7
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914 Guru Group: Members Posts: 7,887 Joined: 24-December 02 From: The Netherlands Member No.: 3 Region Association: Europe |
Not an expert, but it looks like you could do with a little less neg.camber
cheers, Jeroen |
seanery |
Oct 20 2003, 01:17 PM
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#8
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waiting to rebuild whitey! Group: Retired Admin Posts: 15,854 Joined: 7-January 03 From: Indy Member No.: 100 Region Association: None |
I thought that too. At first I thought they may have been slightly over inflated, but I ended thinking too much neg camber.
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dakotaewing |
Oct 20 2003, 01:20 PM
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#9
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Senior Member Group: Members Posts: 1,160 Joined: 8-July 03 From: DeSoto, Tx Member No.: 897 Region Association: Southwest Region |
Are the tires in that condition on all 4 corners, or just the passenger front and rear? Your only showing the passenger side...
Thom |
J P Stein |
Oct 20 2003, 01:27 PM
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#10
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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 |
About the same on all.
At the AXs, the fronts show even temps across the tread, the rears about 10-15 deg hotter on the inside. There are those that say 10 deg hotter on the inside is what one wants. Since rhe rear suspenders are coming apart, nohow, taking out a bit on negative camber dosen't bother me a bit. I just wanna be sure that is the correct thing to do. |
J P Stein |
Oct 20 2003, 01:44 PM
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#11
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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 |
Prolly shoulda posted these first as they are the tires that get most of the work at PIR.....more right hand turns. These are the outside tires in those.
Rear Attached image(s) |
J P Stein |
Oct 20 2003, 01:45 PM
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#12
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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 |
Front....better focus, too (IMG:style_emoticons/default/laugh.gif)
Attached image(s) |
Aaron Cox |
Oct 20 2003, 01:56 PM
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#13
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Professional Lawn Dart Group: Retired Admin Posts: 24,541 Joined: 1-February 03 From: OC Member No.: 219 Region Association: Southern California |
what swaybar mount is that in that front pic?
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machina |
Oct 20 2003, 02:00 PM
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#14
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Advanced Member Group: Benefactors Posts: 2,030 Joined: 21-June 03 From: Miami Beach, FL Member No.: 848 |
i say you need more negative camber. Looks to me like the inside shoulder of the tires is almost virgin compared to the outside of the tire tread. This would indicate the tire is pitching out of the turn more than the negative camber can compensate for.
I can only get about -2deg front and rear on my car right now. I think -3deg would be ideal for our light cars. Alot of race cars with radial slicks run -4deg or more of neg camber. Check the tread with pyrometer next time if you can, that will tell you what is going on. dr |
davep |
Oct 20 2003, 02:03 PM
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#15
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914 Historian Group: Benefactors Posts: 5,195 Joined: 13-October 03 From: Burford, ON, N0E 1A0 Member No.: 1,244 Region Association: Canada |
I'll admit to not knowing anything, however, my first impression is that they appear evenly worn. They sure got very hot though. I've seen the rubber "dribbles" on slicks before; i.e. lightweight gummies.
DaveP |
fiid |
Oct 20 2003, 02:03 PM
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#16
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Turbo Megasquirted Subaru Member Group: Members Posts: 2,827 Joined: 7-April 03 From: San Francisco, CA Member No.: 530 Region Association: Northern California |
QUOTE(acox914 @ Oct 20 2003, 11:56 AM) what swaybar mount is that in that front pic? Looks like the tarret to me. Fiid. |
Aaron Cox |
Oct 20 2003, 02:11 PM
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#17
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Professional Lawn Dart Group: Retired Admin Posts: 24,541 Joined: 1-February 03 From: OC Member No.: 219 Region Association: Southern California |
someone have a link to tarret's site? can i run that mount w/ a stock bar?
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Jeroen |
Oct 20 2003, 02:19 PM
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#18
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914 Guru Group: Members Posts: 7,887 Joined: 24-December 02 From: The Netherlands Member No.: 3 Region Association: Europe |
www.tarett.com
I don't think you can run that mount with a stock bar though... The tarett bars are bigger than 22mm because they are hollow cheers, Jeroen |
Aaron Cox |
Oct 20 2003, 02:23 PM
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#19
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Professional Lawn Dart Group: Retired Admin Posts: 24,541 Joined: 1-February 03 From: OC Member No.: 219 Region Association: Southern California |
ouch $475!
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mharrison |
Oct 20 2003, 02:27 PM
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#20
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Why do I bother???? Group: Members Posts: 633 Joined: 8-September 03 From: Madison, MS Member No.: 1,123 |
My suggestion would be that you need some new tires!!! (IMG:style_emoticons/default/laugh.gif)
Just kidding. I'll be following this thread to gain some knowledge on the subject. |
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