Track Wheel Setup - Square vs Staggered

[steved0x]

In Cayman sizes (roughly 25.5-.6" diameter) there are hardly any tires that fit on the Cayman 17" wheels, 245/45/17 is one and 275/40/17 but the 275 is too wide for the oem wheel and barely anybody makes wider 17" wheels for Porsche fitments unless they are $$$. However plenty of good 18" wheels and lots of tires in those diameters. You could run 225/45/17 and 245/45/17?

On 986 Boxsters i have seen 255/40/17 square and I think 225/45/17 square on Hoosiers or hankook z214

[JayG]

Originally Posted by steved0x

In Cayman sizes (roughly 25.5-.6" diameter) there are hardly any tires that fit on the Cayman 17" wheels, 245/45/17 is one and 275/40/17 but the 275 is too wide for the oem wheel and barely anybody makes wider 17" wheels for Porsche fitments unless they are $$$. However plenty of good 18" wheels and lots of tires in those diameters. You could run 225/45/17 and 245/45/17?

On 986 Boxsters i have seen 255/40/17 square and I think 225/45/17 square on Hoosiers or hankook z214

on stock 986 17's, you can easily run 255/40-17 rear and 225/45-17 front
those sizes are virtually the same diameter and lot sof tire choices in those sizes

[steved0x]

Originally Posted by JayG

on stock 986 17's, you can easily run 255/40-17 rear and 225/45-17 front
those sizes are virtually the same diameter and lot sof tire choices in those sizes

I did see a Cayman at Roebling one time running 17" Boxster wheels with our sizes and it seemed to work for him. I guess 1/2" isn't that much of a difference, and it didn't look to bad either

[mwestboxster]

Originally Posted by steved0x

I did see a Cayman at Roebling one time running 17" Boxster wheels with our sizes and it seemed to work for him. I guess 1/2" isn't that much of a difference, and it didn't look to bad either

My offer on the '09 Cayman was accepted. It's in Fl and I'm in NJ.
I've decided to fly there and drive the car back to NJ. Turns out it's got stock tire set up on 19" wheels not the 18's I thought. 235x35x19/265x35x19. These are worn summer tires. I'll be ordering tires from TR have them delivered to Fl and mounted before I get there. I've been searching around some other forums and as a result decided to skip the 4 square set up for the street tires. It's too much of a hassle trying to figure out what tires will fit where and on what rims. I've got a short window before heading to Fl to pick up the car, so simplest thing to do is go with what the Porsche engineers decided works best on the car.
Still have a few months before track season starts in the NE and that will give me time to investigate track tire set ups.
Thanks for chiming in.
Next time you hear from me I'll be the proud owner of a Cayman S and a Boxster.

[mwestboxster]

Originally Posted by steved0x

In Cayman sizes (roughly 25.5-.6" diameter) there are hardly any tires that fit on the Cayman 17" wheels, 245/45/17 is one and 275/40/17 but the 275 is too wide for the oem wheel and barely anybody makes wider 17" wheels for Porsche fitments unless they are $$$. However plenty of good 18" wheels and lots of tires in those diameters. You could run 225/45/17 and 245/45/17?

On 986 Boxsters i have seen 255/40/17 square and I think 225/45/17 square on Hoosiers or hankook z214

Steved0x
Thanks for responding. Going with 18" wheels is no problem. I'd like to get as much tread to the ground that makes sense: It looks like from what I see posted that 255's work. Will a wider tread work/fit or is that sort of a diminishing return by possibly adding too much weight & resistance.