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Front suspension/camber?

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Old Jan 25, 2007 | 02:53 PM
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Default Front suspension/camber?

My front tires are rubbing slightly and I would like to know how much negative camber I can dial in without using camber plates. I am running Bilstein HD's? The fender lips have been rolled already. The rolling diameter of the tires match front and rear with 245/285. If I go with a narrower tire in the front, the diameter will not match the 285's in the rear using PS2's. Thanks
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Old Jan 25, 2007 | 03:04 PM
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I have -1.2 degrees in the front and there is still more adjustment available. This is based on 17" wheels and RS + 5mm ride height.

Are you running 19" wheels?
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Old Jan 25, 2007 | 03:19 PM
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yes 19's
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Old Jan 25, 2007 | 03:24 PM
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Scott, the 19's and 245's and lowered posture will make things tight in those wheels, but depending on what your current camber is at, you probably have more room in there to increase it.

You're also going to increase the camber in the rears, right? Otherwise, your handling characteristics (under/over steer) will definitely be effected.
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Old Jan 25, 2007 | 03:38 PM
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Originally Posted by Bradford
yes 19's
what rim width/offsets are you running that would make them rub?
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Old Jan 25, 2007 | 03:41 PM
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How much camber you can get depends on the ride height (lower allows more). The only real way to know is to try. At the USA SUV height, my car maxed out at -0.5.

Does it rub on the inside or outside? (I assume it's outside and that means adding a small spacer is not a solution for you.)
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Old Jan 25, 2007 | 05:49 PM
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Originally Posted by Bradford
My front tires are rubbing slightly and I would like to know how much negative camber I can dial in without using camber plates. I am running Bilstein HD's? The fender lips have been rolled already. The rolling diameter of the tires match front and rear with 245/285. If I go with a narrower tire in the front, the diameter will not match the 285's in the rear using PS2's. Thanks
Regarding tire diameter/rolling radius, I thought that Porsche staggered them very slightly on AWD cars so as to preload the viscous coupling .... the larger diameter & therefore lower rotational speed on the front. Just a point that occurred when matching diameters was mentioned ..... and absolutely pointless if the AWD was disengaged
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Old Jan 25, 2007 | 05:51 PM
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Originally Posted by David in LA
what rim width/offsets are you running that would make them rub?
Standard Ruf offset for 19x8 fronts. Car is very low.

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Old Jan 25, 2007 | 05:53 PM
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Originally Posted by Tom W
How much camber you can get depends on the ride height (lower allows more). The only real way to know is to try. At the USA SUV height, my car maxed out at -0.5.

Does it rub on the inside or outside? (I assume it's outside and that means adding a small spacer is not a solution for you.)
Rubs on the outside, therefore needs negative camber to move tire away from fender.
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Old Jan 25, 2007 | 06:20 PM
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I'm running -1.75 up front with 18's and roughly RS ride height.

BTW, that is one DAMN fine looking ride Brad
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Old Jan 25, 2007 | 06:26 PM
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I am able to get -2 up front at about RS ride height. Max'd out, of course.
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Old Jan 25, 2007 | 08:04 PM
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Originally Posted by 993inNC
BTW, that is one DAMN fine looking ride Brad

+1.
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Old Jan 25, 2007 | 10:20 PM
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Scott, the CEO of my company has the exact same car with the exact same wheels and the exact same height...heck, it's even the exact same color!

He just got his alignment done a couple of months ago and the car is perfectly balanced without rubbing issues. I drive his car from time to time and his setup is the most agressive you can have for city driving without suffering from railing on city streets. I'll speak with him tomorrow and post his numbers for you.
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Old Jan 25, 2007 | 10:30 PM
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Thanks for your help guys.
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Old Jan 26, 2007 | 10:33 AM
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Son of a bean ...that's one fabulous color, set-up and totally-the-biz lookin' ride.

Dahyum!

Ger.
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