Tuner1

Does anyone have the factory alignment specifications for the road version GT2? I am curious what camber numbers these 2WD cars used.

Spartan

I'm assuming the alignment wasn't that far off of the RS specs since they shared the same suspension components for the most part. Do some searching on the 993 forum for the RS alignment specs and you will find what you need.

Your alignment will depend entirely on how you are using the car (street/track) and what kind of tires your running etc. Many variables there

Tuner1

For sure

Can anyone confirm that the 993 RS and 993 GT2 shared the same factory alignment specs?

ScottMellor

Here you go. I was told these are evo specs, so probably too extreme for the street.

ScottMellor

From P-CAR Website:
http://p-car.com/susfaq/alignment.html

Barney1

Did that on my car for the street, and had to put a set of tires on it 7,000 miles later...Went around corners awsum though.....

Tour18

Same here. I'll stick to street car settings next time.

Tuner1

I thought this info would be easy to find. I guess not

The 993 RS specs are still very mild at just over 1deg of negative camber. I am sure that most RS owners who spend much time on the track dial in more camber.

I am curious what Porsche did with the street GT2 since it has way more power (torque) than the RS, more weight and a larger front to rear tire stagger. It is difficult to believe that they used the same alignment specs.

The GT2 race car specs listed above are very radical and only apply to a full-on track car running non-DOT slicks.

Jean

Tuner1

The racing settings given here for the EVO are not to be used for your car. Not because they are radical, but they simply do not apply at all to a street car because of tire construction and sidewall height, car height, car weight, downforce, suspension and springs, etc, etc... You cannot achieve these height settings with your suspension most likely, and these are for slick tires, notice how each brand needs different setups, imagine how different the optimal setup can be for a totally different tire construction such as DOTs!

For a dual purpose 2WD, GT2 like weight or a bit more, on DOT Semi-slicks, what I tested and works very well and very fast on the track was -2.3 Front, -2.1 rear (also used -2.0 and -2.0 with very good results), Toe close to zero in the front, Castor and height per stock RS specs. Kinematic Toe adjustment is crucial. This was very confortable on the street as well, except some tramlining/nervousness, but I have 265s in the front.

You can get 100s of different opinions, use a GPS datalogger and do some laps and test a bit. There is no right or wrong setting, just how comfortable you are with it and your driving style.

Tuner1

For sure, which is why I said " The GT2 race car specs listed above are very radical and only apply to a full-on track car running non-DOT slicks. "

Exactly what I was thinking. I am going to try -2.0 front and -1.8 rear.

It would still be nice to see what the factory set the street GT2 at.