RS 987

I am experiencing moderate body roll on my relatively new 2010 GT3 during spirited cornering and track use.

I was wondering if the stock sway bars are adjustable?
If so, what setting is best for the front & rear?

If not, has anyone used the GMG racing anti-roll bar upgrade for the GT3? I am considering this upgrade. Any good?

911SLOW

Since you have a 2010 car please use the appropriate subforum:


https://rennlist.com/forums/997-gt2-gt3-forum-141/

INFMS

leave the anti roll bars OEM and replace the shocks with KW club sport spring/shock package!!!!!!!!!!! this is the best!!!!!

RS 987

I've heard good things about the KW club sport product! How much does this run for?
Can the OEM anti roll bars be adjusted?

P.J.S.

Yes they can be adjusted

Kw Clubsports around $4k iirc - then install, height adjust, align, cornerbalance

Gus F

GT3 BAT, the best you can do is to contact GMG (their are in this forum), if you intend to track your car pretty often and want to really reduce body roll upgrade the sway bars to their WC Kit and install a set of double adjustable Motons paired to eibach springs, GMG is a great way to source all your needs, this mod will make a big difference in your car.
Depending how far you want to go, If you want a even sharper suspension for better track experience and the adjustability needed for a good track alignment, add the A arm monoballs, toe steer kit, dog bones, bump steer kit, solid bushings,...
I had all this on my GT3, that car was a sweet drive,...

INFMS

the Kw's are the way to go....Motons are unreliable, and you must make sure the bump canisters are always charged with nitrogen, they are also a copy of JRZ which are also unreliable.
If you have a German car, stick with German products!
If you are going to use slicks then get stiffer anti roll bars, but get H&R, and adjustable sway bar links, get an alignment from a well recognized Porsche race team

RS 987

Thanks Gus F & PJS996GT3! Great suggestions and advice. I will be tracking my car regularly and have been torn between upgrading my street GT3 or upgrading to a Cup Car...I'm leaning towards to the street GT3, as the maintenance will be less than a Cup Car.

I know GMG Racing pretty well. I have been impressed with their parts and expertise. I'll have to make a trip there one day soon.

INFMS

go with a cup car, its already done!!!!

sin911

KW Clubsport is the best? Really? That sounds surprising. I haven't seen anyone run it so far... Plus their spring rates seem quite crazy! 400 lb/in F and 1,085 lb/ft R?

I don't mean it in a sarcastic way. I am just curious.

RS 987

Thanks INFMS! The price of KW's are reasonable and their reputation is stellar!

Apologies if this is in the wrong section of the forum! On a separate note, I am considering the following and would appreciate your opinions:

So far, I have the following:
- BMC Air Filter
- RSS X-Pipe (but have heard that the Sharkwerks is better in design)
- GT3 Cup Front Splitter
- Basic Track Set Up: Lowered Suspension / Wheel Alignment

Considering:
- Guards LSD Re-build
- Switching to Sharkwerks or GMG Exhaust
- KW Suspension or equivalent incl. dog bones / toe steer kit etc...
- Cargraphic Short Shift Kit (-35%)
- Pagid RS Brake Pads + Braided Brake Lines
- EVOMSit ECU
- Lightweight Battery
- Michelin Pilot Sport Cups (replacing Pirelli Corsa's)
- RSS Roll Cage
- GMG Sway Bar
- Recaro Seats with Harness
- GT3 RS 4.0 Dive Planes
- Light Weight (GT3 RS or equivalent Rear Spoiler)
- Some Light Weight Wheels!

Or, of course..switch to a Cup Car!

INFMS

really, there's a rather quick orange 997.1 running them in the pca (Eric)the rear springs are not 1085's the're softer

sin911

-Replacing the rear spoiler is unnecessary for weight purposes. It will be very minimal.
-Guard LSD rebuild and suspension upgrade will help for sure!
-Roll bar, seats and harness are a must for track duty.
-Since none of the shops claim any hp gain from the bypass, I say save your $.
-LW battery is a nice upgrade but you may need a battery tender.

Also would suggest:

-Semi solid engine mounts
-996 Cup shift cables

Eric is the only person I've heard running KW. Since I don't really know him I don't know how he feels about them. But other than him, I really haven't seen, heard, or read about anyone using them.

I checked the Website and the Clubsport 2 way adjustables come with 400 lbs in the Front and 1085 lbs in the rear

997gt3north

From previous posts, Eric I believe has the Manthey tuned version of the KW Clubsports - I'm not sure if anyone knows the spring rates on those. However, those 400/1000+ rates are correct for the KW Clubsports. It would be somewhat hard to believe if the springs rates were that different from the above, as KW spring rates for all the 911s over the last 10 years have used a rear spring of approximately 950#s - they have recently gone higher in the rear on their Clubsports and also raised the fronts to 400# from the mid 300#s range previously.

LehmanZ06

I would go one or two notches stiffer in front.

I went one stiffer. NJ-GT (Rad)---helped me with my car and advised not to go full stiff in front as the bar clearance or something like that isn't good.

I would go stock bar adjust first before getting aftermarket JMO