997Current model of the 911 C2, C2s, C4, C4S, Targa and Cabriolet Discussion. Sponsored ByHRE Wheels
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How long are your tires lasting you. I have Continental Conti sports on and they seem (rears) to last only a little more than 10,000 miles. Sounds about right? Seems awfully low, i expected around 15k -20k out of the tires.
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I have about 6,250 miles on my car, I had 2 Track Events and I have to change my rear tires I have Pirelli P zero Rossos on my car btw.
__________________ 2008 Carrera S
Arctic Silver w/ Black interior and Red Stitched Seats
AWE 200 CEL Cats, AWE Mufflers w/ Ceramic Coated Tips, X51 Headers, Sport Chrono, Short Shifter, BMC Air Filter, Bilstein Damptronics, RSS Sway Bars, X51 Center Radiator, HRE P40 19" in Gloss Charcoal
My street tires have 8k miles on them and look new.
The alignment that comes on your Carrera has a lot of toe in it. Toe will wear out the tires more than camber will. I have found that .02 toes per side up front and -1 camber and .14 toe per tire and -1.4 in the rear works well and will help tire wear and the car will turn in more crisp.
I used this as my track and street set up for 2 years. My street tires wore great and I got well over 15,000 miles on my 06 with this set up and my track tires wore better too.
For my 09 Carrera S I added GT3 cup lower control arms, used basically the same toe specs but now have -2 camber front and -1.8 rear. Not idea for the street but awesome for the track. The car is still very drivable on the street but will wander with the grooves on the road a bit more than the stock settings.
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Mike
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If you are not tracking your car, dialing out some of the negative camber on the rears will allow you to get 20,000+ miles out of the rears and still accomodate aggressive street driving. With negative camber, the more straight driving you do, the faster your inside rubber will wear out.
Last edited by 1999Porsche911; 11-07-2009 at 08:29 AM.
If you are not tracking your car, dialing out some of the negative camber on the rears will allow you to get 20,000+ miles out of the rears and still accomodate aggressive street driving. With negative camber, the more straight driving you do, the faster your inside rubber will wear out.
Good info! What is the current set up (setting) from the factory (997.2 C2s)? Are saying "dial out" from the stock factory setting, or from some track setting?
I don't track, and would like to maximize tire life, w/o jeopardizing emergency handling, if you get my drift (no pun ).
Last edited by talkinghead; 11-07-2009 at 09:43 AM.
If you are not tracking your car, dialing out some of the negative camber on the rears will allow you to get 20,000+ miles out of the rears and still accomodate aggressive street driving. With negative camber, the more straight driving you do, the faster your inside rubber will wear out.
True...but...it is the amount of rear toe that really eats tires. Dial out the rear toe to .14 and rear tie wear will be better.
I am no expert but from my talks with experts and my experiance I would suggest for pure street driving:
-.8 camber front per side
.04 toe front per side
-1.3 camber rear per side
.14 toe rear per side
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Mike
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There should be minimal toe in on the rear tires to begin with. No more than 0.12 total. Set your camber to -1.00.
I just pulled my alignments from my 2007 and 2009. The 2007 car came with .23 rear toe on right and .13 left and the 2009 car came with .73 rear toe on right and .76 degress left...WOW...both cars factory alignments were a mess.
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Mike
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I just pulled my alignments from my 2007 and 2009. The 2007 car came with .23 rear toe on right and .13 left and the 2009 car came with .73 rear toe on right and .76 degress left...WOW...both cars factory alignments were a mess.
How did you "pull alignments"? Any idea what the settings are supposed to be from the factory ?
Last edited by talkinghead; 11-07-2009 at 03:45 PM.
10k is about, right, i have been doing a little more hard turn pulls from the light, so maybe 6k...
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997 C4S Cab, with a K&N air intake, navi, bose, 6 speed, sport chrono,
i pod inter-grader, chrome tips, 3M bra, H.R.E C97's 19" 8.5F, 11.5R rear with michelin ps2. (P.C.A member)
Ducati 1098s with carbon fiber To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
996 Carrera Cab, Guards Red with H.R.E's 545R's 8.5F/10.5R. Sold
I have Pirelli P zero Rossos on my car btw.
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