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      07-16-2011, 01:42 PM   #353
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Quote:
Originally Posted by elh0102 View Post
If you didn't hear them, you were probably not near the limit. I noticed on track, they have plenty of audible communication, just ease into it.
+1
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      07-16-2011, 02:52 PM   #354
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Need some help with tire confusion for my E90. I've read through the thread there, but I'm not seeing my answer.

PS2's are out of stock until 9/7. Great. Neither TR nor my dealer have SS in the stock rear size (265/35/19 98Y).

My dealer says an option is the SS in 295/30/19, which would be about 1.5" wider. Has anyone done this and do you see any issues with this setup?

Thanks
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      07-16-2011, 06:22 PM   #355
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^ yes, 4sevens runs a 295/30.

As GregW mentioned, the 265/35 is not available in North America.

Another popular alternative, the 255/35 F and 275/35 R are available just about everywhere for local pick-up, as i found out today, even on a Saturday.

I'll be involved in some independent testing of the PSS at Willow Springs tomorrow.
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      07-16-2011, 06:46 PM   #356
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      07-17-2011, 10:38 PM   #357
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Michelin PSS after 1.2 hrs at Willow Springs Intl. Raceway...

I kept tire pressures to ~40 psi hot.





I put 300 easy "break-in" miles prior to tracking, running OEM wheels & suspension. The weather was warm but not that hot; ambient ranged between 73-88 deg F, asphalt temp was ~103F.
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Last edited by OC ///M; 07-19-2011 at 05:08 PM. Reason: added tire pressure
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      07-17-2011, 10:47 PM   #358
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Quote:
Originally Posted by tlp View Post
^
Agreed.

With 220's 15F/12R should work fine. With 359's it's too wide. Ask me how I know.
12mm spacers rub with 275/35/19s in the rear. I have stock suspension on 220s and they rub when the cars drives over any bumps, even without passengers.
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      07-17-2011, 10:58 PM   #359
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Quote:
Originally Posted by C17MooseDriver View Post
12mm spacers rub with 275/35/19s in the rear. I have stock suspension on 220s and they rub when the cars drives over any bumps, even without passengers.
Where did you experience rubbing in the rear? I had a one time hairline rub on at the inside edge of the rear bumper cover with 12mm spacers & 359's on stock ZCP suspension that was a non issue. The wheels stuck out too far for my liking. I'm happy with 5mm rears on my 275/35/19's these days.
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      07-19-2011, 01:16 PM   #360
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Do you guys think this will work for my LMR 245/30/20 and 285/30/20? I'm planning on purchasing new tires soon.
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      07-19-2011, 04:49 PM   #361
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Quote:
Originally Posted by OC ///M View Post

I put 300 easy "break-in" miles prior to tracking, running OEM wheels & suspension. The weather was warm but not that hot; ambient ranged between 73-88 deg F, asphalt temp was ~103F.
I don't understand, they don't look that bad, are those tires ruined?
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      07-19-2011, 04:55 PM   #362
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I don't understand, they don't look that bad, are those tires ruined?
+1. The rubber bits will wear off soon enough... they look like most any tire that was run 1.5hours on the track and still look to have a lot of tread depth... having said that I'm not an expert.
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      07-19-2011, 05:06 PM   #363
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^ Nothing negative was said...

I was simply posting a couple of photos showing the tire after a few heat cycles.
P.S. For those that care: tire pressures were kept ~40 psi hot.


Sometimes I just don't get this forum...I guess it's time for a sabbatical.
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      07-19-2011, 05:14 PM   #364
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Quote:
Originally Posted by OC ///M View Post
^ Nothing negative was said.

What's wrong with posting a couple of photos showing the tire after a few heat cycles?

I don't understand-this is only meant to be info for the community.


Sometimes I just don't get this forum...I guess it's time for a sabbatical.
Sorryif I misinterpreted. I thought you were suggesting something wad wrong with them.
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      07-19-2011, 05:43 PM   #365
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Quote:
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Sorryif I misinterpreted. I thought you were suggesting something wad wrong with them.
^ No apology necessary. My post was actually directed to "natedogg".
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      07-19-2011, 08:47 PM   #366
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OC, I simply didn't know if that was what a ruined tire looked like. Pictures are always appreciated. Sorry for my idiotism.
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      07-19-2011, 11:02 PM   #367
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Quote:
Originally Posted by N8dawg View Post
OC, I simply didn't know if that was what a ruined tire looked like. Pictures are always appreciated. Sorry for my idiotism.
Nate D-O-Double: No worries, and it's actually not ruined... just picked up some marbles (small rubber debris on the track surface) during a few heat cycles.

Also, you weren't close to approaching idiotism yet...
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      07-20-2011, 04:34 AM   #368
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sorry for my English))
I had a problem after put rear PSS 275\35\19(I have passed only 30 miles), front didn't change PS2 245\35\19.

Earlier when was rear PS2 265\35\19 the car was steered as go-cart racing)) now it seems that are wheels 275\70 and I go on a jeep.when i steer the car aggressively rear right left as trees shake on a wind ((
Question:
1) It is a problem of in front stand 245\35 instead of 255\35?
2)This no problem- this feeling from PSS?
3)275\35 side high 265\35 - change to 275\30?
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      07-20-2011, 05:06 AM   #369
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Quote:
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sorry for my English))
I had a problem after put rear PSS 275\35\19(I have passed only 30 miles), front didn't change PS2 245\35\19.

Earlier when was rear PS2 265\35\19 the car was steered as go-cart racing)) now it seems that are wheels 275\70 and I go on a jeep.when i steer the car aggressively rear right left as trees shake on a wind ((
Question:
1) It is a problem of in front stand 245\35 instead of 255\35?
2)This no problem- this feeling from PSS?
3)275\35 side high 265\35 - change to 275\30?
30 miles is not enough to scrub in the tyres or to remove the tyre mold release agent.
I have front PS2 245/35/19 and rear 265/35/19 PSS and the combination is brilliant. You have to give the new tyres more time to settle in...also be sure you have the rear tyres at the correct tyre pressure, if the pressures are low the rear of the car will feel loose.
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      07-20-2011, 07:32 AM   #370
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Quote:
Originally Posted by SenorFunkyPants View Post
30 miles is not enough to scrub in the tyres or to remove the tyre mold release agent.
I have front PS2 245/35/19 and rear 265/35/19 PSS and the combination is brilliant. You have to give the new tyres more time to settle in...also be sure you have the rear tyres at the correct tyre pressure, if the pressures are low the rear of the car will feel loose.
tyre pressure begin 34psi after i up 40psi cold -Steering has improved but not how was 265\35.
40 psi it's ok or PSS need other pressure ?

i agree 30 miles is not enough..... but after 200 will be better???
now tires look like new i think can sale them and buy PSS 275\30 or PS2 265\35- good idea?

Last edited by vasilii; 07-20-2011 at 10:46 AM.
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      07-20-2011, 10:15 AM   #371
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Quote:
Originally Posted by 4sevens.com View Post
No rubbing at all on the fronts (even with zcp).
If I recall correctly the 275/30/19's are the same size or very close to 275/35/18 which are my track set.

Did you find a big difference in performance gains going with the 18" wheels?
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      07-20-2011, 11:12 AM   #372
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Quote:
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Did you find a big difference in performance gains going with the 18" wheels?
The car was snappier and steering wasn't as heavy - I'm sure there was a difference but I don't have anything but subjective feedback.

I can comment that 295 19's was faster than 275 18's at road atlanta by 4 seconds. So whatever gains from lighter weight was outweighed by more grip from the 295's and less sidewall.
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      07-20-2011, 11:19 AM   #373
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Quote:
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The car was snappier and steering wasn't as heavy - I'm sure there was a difference but I don't have anything but subjective feedback.

I can comment that 295 19's was faster than 275 18's at road atlanta by 4 seconds. So whatever gains from lighter weight was outweighed by more grip from the 295's and less sidewall.

Which 18" wheels and tires did you have?
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      07-20-2011, 11:20 AM   #374
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Which 18" wheels and tires did you have?
apex arc-8 18x10 (they weight just under 20 pounds if I recall)
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