Dear Unregistered, the permission changes should be complete, if you notice any issues with your access on the site please let us know and we will check into it.
Hey Unregistered it seems that you haven't posted a message in our forums yet. Please join in on the fun and post a message!
Dear Unregistered,
We've noticed that you are not yet a member of our Cayman Insiders group. This group provides a number of additional value-add services via this website for a very low annual fee. You can find out more about this group here:
Insider Announcement
You can join the Cayman Insiders Group here:
Insider Enrollment Form
We hope to see you "Inside" soon!
Cayman Tires & WheelsDiscussion of Tires, Wheels, Suspension, etc.
Your Donation Will Be Used To Pay For our ever increasing bandwidth costs, our hosting Service, domain registration, software licensing fees, maintenance costs and product evaluations Only!
Please enter your donation amount above, and then click on the donate button below.
I'm considering running these tires on Porsche Turbo wheels that are 8"x19" front and 9.5"x19" rear. The question is tire height difference and possible code errors on the rear tires. These tires come in the 235/35 ZR19 with the correct diameter for the front but not in the 265/35 ZR19 with a 26.3" diameter for the rear.
The tire size Michelin makes is the 265/30 ZR19 with a diameter of 25.3". A difference in rear height of 1" compared to the recommended 265/35 ZR19. My mechanic at Suncoast says it won't be noticeable and shouldn't trip any code sensor.
Anyone tried these tires on 19" wheels or had similar situations?
Thanks,
GuyC
Suncoast Motorsports
Suncoast Motorsports is your one stop shop for Cayman parts, please mention the CaymanClub.Net website to get your member discount!
I don't think the difference is an inch. I think the aspect ratio (35) is a percentage of the tread width (265). Then, I believe, that makes the difference 13mm (5%) or a little more than a quarter of an inch. You may want to double check with the manufacturer on this as I am relying on what I learned mounting tires 25 years ago as a Summer job.
MMMM.....just checked the Michelin website. They confirm my calculations above in principle, but their catalog does state the 1" disparity that the dealer told you about. Some of it is the fact that the cups come with 6/32nds of tread and the PS2s come with 10/32nds, but the othe 1/2" plus; I don' know.
The 19" Michelin Sport Cups come in 235/35 with a diameter of 25.5", and 265/30 with a diameter of 25.3". This change should not cause any problems. We've been running the 18" Cups with the same kinds of changes without any problems.
The 19" Michelin Sport Cups come in 235/35 with a diameter of 25.5", and 265/30 with a diameter of 25.3". This change should not cause any problems. We've been running the 18" Cups with the same kinds of changes without any problems.
The 19" Michelin Sport Cups come in 235/35 with a diameter of 25.5", and 265/30 with a diameter of 25.3". This change should not cause any problems. We've been running the 18" Cups with the same kinds of changes without any problems.
Agree entirely. I've done this too with no abs/psm issues.
Greg
PSM - Porsche Stability Management
While it can’t overcome the laws of physics, the revolutionary Porsche Stability Management (PSM) system does lend an added degree of balance and control to the Cayman’s mid-engine driving dynamics, inspiring surefooted confidence in corners and extreme situations.
A standard feature on the Cayman and Cayman S, PSM continuously monitors steering input, road speed, yaw velocity and lateral acceleration to calculate the actual direction of travel. If the car begins to steer off line, PSM instantly intervenes with precision brake inputs on individual wheels to help bring the car back onto the driver’s intended path.
If braking alone isn’t enough to correct the vehicle’s cornering line, PSM then calls on the Cayman’s engine management system, adjusting engine output as needed to help stabilize handling. PSM can also compensate in an instant for mid-corner changes in load resulting from deceleration or braking. When Sport mode is selected with the optional Sport Chrono Package, PSM’s threshold for intervention is raised, allowing for greater driver involvement. If you prefer driving without automatic PSM assistance, the system can be set to standby at any time. In this case, it will only intervene under heavy braking, where both front wheels exceed the ABS threshold.
For all of its technical ability, PSM goes virtually unnoticed in everyday driving situations, preserving the Cayman’s natural agility.
Linear Mode
