Trj

What have you guys running a stock set up found to be the best sway bar settings front and back? Did yours come tightened all the way down from the factory?

Larry Herman

Best for what? I liked mine one hole from hard (front & rear) for autocrossing, and would soften the rear bar one more hole for less oversteer for the track.

Bob Rouleau

I agree with Larry. Same setup on my car.

NJ-GT

I run the same setup at the track: 1 from stiff front (stock setting), 1 from soft rear (1 softer than stock).

Autocross, I run full soft front and rear. As the autocross tires wear out, I move the front bar to 1 from soft, then middle. When I reach the front stock position for autocross to keep the car balance, typically the rear tires are shot and due for replacement.

Street: same setup as the track, with exceptions when I'm lazy to set them back from an autocross.

My car runs an aftermarket suspension. On the stock suspension I ran stock rear and full stiff front.

SPR

What are the alignment specs that are being run with those settings above? Also does anyone know what the compression and rebound rates are on the stock gt3 shocks ? I am curious what the simular sitting would be in Pss9 terms
I guess the stock gt3 springs are:

Front: 280 lbs progressive
Rear: 550 lbs progressive

Pss9's are? and gt3 dampening rates are?

Rolo

Which way is hard, and which way is soft. I've left mine as it came???

Thanks

Larry Herman

Full hard is the hole closest to the cross bar, and full soft is the hole farthest from the cross bar. If you think of the "ends" as a lever that twists the cross bar, this will become apparent.

Trj

Ok so for us new guys can someone explain understeer/oversteer in reguards to soft/hard settings? Which causes which? Thanks.

Bob Rouleau

trj - going stiffer in front increases understeer. Going stiffer in the back increases oversteer.

NJ-GT

The exact stock GT3 spring rates as published in Pano:

F: 40 N/mm linear
R: 95 N/mm progressive

I was told 280lbs/in - 550 lbs/in by the german tuner that sold me my camber plates. For several reasons, I trust them. Using a conversion to lbs/in on the published numbers in Pano, we get 228.44 / 542.55 which can be rounded to 228/543 or 230/540 or 225/550.

There is a good article on the 996 Suspension on this link

SPR

right but what are the compression and rebound settings?