I appreciate the info...

.

 

One other question Michael -

How do you like the Hankooks - especially compared to the PS2's ???


Thanks again...

 

I noticed that typo on the camber after I posted it, and congrats, your the first to catch it. Yes it sould read -.9... The toe was set at .07 per side, with a total toe of 13 degrees on the front. These numbers are positive so it would be toe out. As for the rears, total toe is +.33( toe out ) per axle is +0.17.

 

Umm they're different. Not in a bad way, just in a characteristics way.I've had them on for about 2 weeks now. The most immediate point I noticed was that they are extreamly quiet. They are great in the rain, and at the public free, police free industrial park where we mess around at on the weekends, they corner very well right out of the box. It was 45 degrees when we first went over there and i have a 15 min drive on slow streets to get there. Not much heat in the tire and on the faster areas,they were great. I'll let you know when I'm 1k into the tires if I still like them.

 

Thanks; yes, please do the 1000 mile follow-up.

 

OK there is some mis-information going on here.

1st- negitive camber can make the inside of your tires wear faster....but....massive amounts of toe is what scrubs and wears tires a lot more than camber

2nd- you do not want more than .5 degrees of difference between front and rear camber settings

Here is a good all around street/track setting for stock 2005-09 PASM cars. (*note Sport PASM on 09 cars will allow for more front negitive camber)

FRONT
-1 camber PER SIDE
.02..no more than .04 te PER SIDE
Caster on these car can not be adjusted

REAR
-1.4 to 1.5 PER SIDE(...note keep front and rear camber with in .5 or less degrees)
.12 to .14max toe PER SIDE

Any more toe than what I listed will EAT the tires. I ran these settings for years on the street and get over 15,000 miles from my rears. My fronts did not wear all that much. These settings also work for the track with Toyo R888's with OK wear but depend on the track you drive and your skill level.

 

Anyone have the factory alignment settings for a 2009 carrera s? i know my gt3 had them listed in the back of the manual, but the carrera s doesnt. Anyone have a print out from the tech manual?
thanks,

 

I want to put a huge 2nd on this. The misconception (and it makes sense) that tilting the top of the wheel inboard (negative camber) from 0.5 to 1.5 degrees seems like a drastic change, at Zero toe on that wheel, the change in tire wear will be minimal.

Now if you go from 0.5 to 7.0 degrees negative, we are talking about something else.

However, if you take toe from Zero to say 1/8" on that wheel, now you've created a huge wear situation, and this will surface on the inside edge since you have the wheel leaning in 1.5 degrees.

As to the original post' alignment, I can see how adding that toe out in the back changed the car quite a bit. I'm curious how common rear toe out in the 997 is?

 

I don't know who your directing this to, but all I did was list the settings they put on the car and I was happy with it. Run your car however you like. I have not read a post on this thread that misinformed anyone of anything. Just a bunch of guys enjoying their cars and discussing what they like about them.

 

The factory recommended rear toe setting range is 0.08 to 0.25 as per the porsche alignment sheet I got from the dealer when they did the car.

 

In our Out? I've not seen many factory alignment specs that call for toe out.

 

any one have a factory alignment spec sheet?

 

Unless you see a - it's positive or out.

 

This is not true, or at least not always true. In most cases on a modern alignment, Toe-Out is represented as a negative number, not a positive one. I asked because it seemed uncommon, but given the tech's autox experience, likely was used to more aggressive alignments.


Do a search, or use tirerack's explanation on toe:
"Toe is expressed in either degrees or fractions-of-an-inch, and an axle is said to have positive toe-in when imaginary lines running through the centerlines of the tires intersect in front of the vehicle and have negative toe-out when they diverge."

If you are certain it's positive, I think you're running rear toe in, which is more common. That said, still can't find a factory non GT3 alignment specification. Here is the GT3 spec though:

Front Left/Right Specified Range
-1.42d -1.25d Camber
7.50d 8.50d Caster
0d00' 0d05m Toe
-0.17d 0.17d Cross Camber
-0.67d 0.67d Cross Caster
0d05' 0d10' Total Toe

Rear Left/Right Specified Range
-2.08d -1.92d Camber
0d10' 0d15' Toe
-0.17d 0.17d Cross Camber
0d20' 0d25' Total Toe
-0.08d 0.08d Thrust Angle

I believe based on this though and common practice that your positive toe settings are Toe-In.

 

interesting numbers.

I spoke to a guy with gt3 rs at auto-x and he told me he runs -2.7 camber in front with -2.3 camber on rear, 0 toe in front and 0.03 positive toe in rear.