I don't have a GT3 (just a C2S) but figured most of the suspension setup guru's live in this subforum so I'm asking here.

Before I get some Ohlins and open pandora's box by lowering the car with them and getting toe links, dog bones, and adjustable LCA's, I was wondering if anyone knows of any really good 996/997 rear suspension setup guide. Hoping to find something that covers not only what kind of static numbers to aim for, in terms of toe and camber, and also what kind of curve to look for in terms of camber and toe during compression. I have a digital bump steer gauge and some alignment tools so I can measure all this and know how to adjust things to get the desired settings (for the most part).

Thanks in advance.

 

have you read this?

https://www.sharkwerks.com/tuning-gu...-gt3-2007-2008

or

https://www.sharkwerks.com/tuning-gu...-gt3-2010-2011

 

This whole process is so incredibly subjective. Everyone truly likes a car to feel a different way, so I would get it to the track on the type of tires that you intend to use repeatedly. Figure out what you don't like about the car, and then start from there. Any shop that tells you that they have the "secret sauce" and will make your car handle perfect without first asking you what you would like changed is doing you a disservice. Don't blindly throw parts at the car because you will not end up happy at the end.

 

Deleted. Error.

 

Thanks for the replies.

Any advice on track tires that can be driven to/from the track? On my last track car I was running Dunlop Direzza Z2 Star specs and loved them. They don't seem to make one for the Porsche sizes though. I have 19" OEM wheels but am considering dropping down to 18 for the track.

 

If you drop down to 18s, NT01s are a cool tire that you can drive on dry roads to and from the track, and track them. You can drive them down to slicks too but at first, the sections are so big, when the tread is there, you do not get any (to me) noticeable "squirm."

I drove to work and back a few times in the rain on them, and you have to drive slow and careful in that scenario, or just do not drive on rain days. Here in So. Cal, that was a couple times for me max.

I had them for 10k and a couple track weekends, so about a year total before I swapped them for a new set just to be safe before going a couple more track weekends and a bunch more commuting miles in between. I have friends that daily them and just do canyon runs but that is overkill IMO. I eventually ran Hankook RS3Rs on daily wheels to work and for canyon driving (also overkill but whatever) and NT01s on my track wheels. That was my best solution in the end. However, I did do track days on the Hankooks, and they were great as well.

I am really interested in all this stuff, so sorry for posting all the time.

I really liked this video:
I know it is a cayman rather than a 911 but I will watch videos on this stuff and research it to death while procrastinating from work!! In any case, they talk about the NT01s in this video and Mike knows 100000000x more about this stuff than me. If you ever see him at the track or at an event, he is a super cool guy with a deep wealth of knowledge.

 

NT01 are great track tires and they are available in 19" OEM sizes. On the other hand, the NT01's are terrible street tires. The times I had to drive to the track on the Nitto's, I always wore earplugs because the tire noise was unbearable. Also, driving them in the rain is like driving on ice.

 

I've run 18" NT01's on my car exclusively (street and track) for 5 years. Dozens of sets. As far as tires go that fit properly, with the correct OD, that can be used for dual purpose, there is nothing with more grip. There's always the 40 treadwear path (R7's, RR's, R1's, etc.), but that's a slippery slope.