For wheels, we selected the Titan 7 T-S5 wheel. Titan 7 has developed a special fitment just for the 987 Porsche. Titan 7 forges their wheels with an industry-leading 10,000 tons of pressure using multi-stage dies. This forging process gives the wheels great grain orientation with excellent strength and mechanical properties. On the T-S5, the split 5 spoke design was selected for efficient strength to weight. In the spokes, you can see forged in ridges on the edges that help stiffness while keeping the overall weight of the spoke down.
In the wheels mounting pad, you can see that all excess material has been removed and the pad area hollowed out. This is done in the forging process, not by post forging machining to assure good grain flow and strength in this area. Little tricks like these assure that that wheels will be light. 17.5 lbs for the front wheel and 19.4 lbs for the rears. This is very light for 18″ wheels in a wide width! The wheels are designed to clear all popular big brake kits available for the 987.
The T-S5 has a knurled bead seat area to help prevent the tire from spinning on the rim. The inner rim flanges are also beefy for strength in this critical area. Our front wheel is 18×9 with a 48mm offset while the rear wheel is an 18×10 with 35mm offset allowing for an aggressive tire fitment with plenty of tire to fender clearance.
For tires, we needed something durable enough to be driven to the track even with aggressive alignment settings that still would over decent track grip. For this kind of use, the Nitto NT01 is one of the best choices. Its attributes that we have learned to love over the years are a long life on both the street and track grip with consistent performance through many heat cycles.
The tread is 6.2/32’s deep and can be shaved to 3/32’s for cooler running. At this point, the tire turns into a slick with two shallow circumferential grooves. However, we have never had an issue with heat build-up and chunking or we have not felt noticeable tread squirm with the NT01. Because of this, we feel that shaving is not needed or even recommended for the NT01 as it will reduce the service life which we feel is one of the tires best features! The tread compound is one of the things that contributes to the NT01’s on track staying power. Sure there are faster tires out there for sure but none can beat the NT01’s ability to give consistent grip all the way until the tread wears completely off and few can last as long. We have stretched the NT01 to easily last 3 complete racing weekends which is two races with qualifying and practice sessions over the weekend.