CosmosMpower

I already maxed out what I can do from the top. I agree with you on needing more, i'm still wearing the outside edge more than middle/inside at -3.7

powdrhound

Good rule of thumb is 1 degree for every 10mm of shims. With the tops maxed out and no shims, you will normally see -3.5º camber, give or take depending on ride height. If you want -4.0, you will need approx 5mm of shims, -4.2 = 7mm shims, etc, etc..

In the rear I'm at -3.6º camber, ideally could use a bit more maybe -3.8 or so which I will dial in next time I have the car on the rack..

MC 968CS

I ran the Pirelli DM compound 245.645.18 and 305.660.18 on my 997.1 GT3 for first time the other day. PB lap time and no fitment issues at all. Also replicates oem dimensions extremely well. Fun tyres.

powdrhound

Take offs are a crap shoot. Some could be decent, some will be garbage. Starting with a brand new set of 275/315 DH, session 1-4 (1-2 seconds slower), 5-8 (2-3 seconds slower), 9-12 (4-5 seconds slower). Anything past 12 sessions I have found to be flat out dangerous due to the tire's sharp decrease in grip. They basically go off the cliff. The above is based on 20-25 minute sessions and 2 minute laps with a car driven at 997Cup pace or better.