Suspension alignment values ...
#1
Burning Brakes
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...are needed for my Carrera 3,2 coupe. Car has standard green bilsteins, and is lowered about 1/2 inch below Euro spec height. Have fitted 7s & 9s with 225s and 245s fr/rear. 915 box and torsion bars. Any suggestions and values for fast road/ occasional track use ? Front wheels rub on fender lips (mainly on the right). Camber, Caster and toe ??????
You help would be greatly appreciated.
Steve
You help would be greatly appreciated.
Steve
#2
Burning Brakes
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thats a toughie as I could write a book on the ins and outs of it all, hmm I run almost -2 degrees 35 or so minuets camber on the street in my GTI as I really dont care about tire wear but thats about the limit. I do alignments constantly on my customers cars but I always set them to stock (1 degree 12 minuets 996 for example) so they dont bitch about tire wear. Caster is your straight line stability (self centering) so the more caster the more stabile (thats why top fuel dragsters front wheels kinda flop side to side) I would contact a Porsce performance suspension shop (maybe Steve will see this and pitch in some info) as even with all I know, I'm still going to save myself the agrivation and send it over to Dieter at Andial to have my corner weighting and alignment done on my 84 as he has done far more than I ever will.
#3
Technical Specialist
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If I remember correctly, on my lowered 911SC, we went with around minus 1.5 degrees camber front and rear, for street and track usage. You may find the stock components limit how much negative camber you can dial in.
#4
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I have an 87 3.2 that is lowered and I run -1.5 camber in the front 6.5 deg of caster and -2.5 camber in the rear with 14 minutes of toe-in all around. Although my car is stock it is strictly used as a track car.
#5
Instructor
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I have a stock SC set to Euro height and used for daily driving, track and autocross. Toe and caster are set to stock numbers as per my alignment guy's manual; camber is set to -1.75 on the rear and -1.5 on the front. I could get more negative on the on the rear, but -1.5 is the limit on the front without modifications. The combination provides much better performance than the US factory settings without any signficant wear problems.
#6
Burning Brakes
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I see that all dial quite alot of negative camber(-1,5 at least). How does that influence high speed stability ?
My car felt very nervous at about 140 mph while braking. What are your caster values ?
My car felt very nervous at about 140 mph while braking. What are your caster values ?