[five3three]

Anybody running 225 square for track or hpde use? Any opinions? I'm new to track world but had one hpde recently that I did on the stock staggered PSS.

I'm getting an oem 7.5 square winter set and thinking about if I can use those wheels for spring/summer track use as well.

Options I have:

- Use 225 square setup for winter and track use
- Use oem staggered PSS for track use and daily driving with dedicated winters

Thanks.

[Béhème]

I'm using 245 Hankook RS3 all around on 17'' X 8'' Kosei K4R (as per a recommendation of another board member) and it works great.

Next summer, I just need to fine tune the tire pressures, find some pads more oriented towards the track and install my BMW LSD, with which I expect to run good times (bought my car an AIM SOLO lap timer for Christmas!!!).

[Liquidpaper]

Originally Posted by five3three

Anybody running 225 square for track or hpde use? Any opinions? I'm new to track world but had one hpde recently that I did on the stock staggered PSS.

I'm getting an oem 7.5 square winter set and thinking about if I can use those wheels for spring/summer track use as well.

Options I have:

- Use 225 square setup for winter and track use
- Use oem staggered PSS for track use and daily driving with dedicated winters

Thanks.

Square is a good idea. 225's should be okay, but you might want to think of moving to a slightly larger square setup -- 255/35/18 is a really good size due to it having similar diameter to the stock setup. You can get away with 18x8 and 255's all around, but you could also do an 8.5 or 9 inch wide wheel too.

Also, do not use the PSS for track use unless you intend to overinflate the tires and run a lot of camber. They will die very, very quickly. Any well known EPT would do better for track use - Direzzas, Hankooks, Potenzas, etc.

[BlueM235]

Originally Posted by Liquidpaper

Square is a good idea. 225's should be okay, but you might want to think of moving to a slightly larger square setup -- 255/35/18 is a really good size due to it having similar diameter to the stock setup. You can get away with 18x8 and 255's all around, but you could also do an 8.5 or 9 inch wide wheel too.

Also, do not use the PSS for track use unless you intend to overinflate the tires and run a lot of camber. They will die very, very quickly. Any well known EPT would do better for track use - Direzzas, Hankooks, Potenzas, etc.

Be carefull with 9' wheels. Watch the offset of the wheel, Strut clearance is very tight in the front end of the M235.

[five3three]

Originally Posted by Liquidpaper

Square is a good idea. 225's should be okay, but you might want to think of moving to a slightly larger square setup -- 255/35/18 is a really good size due to it having similar diameter to the stock setup. You can get away with 18x8 and 255's all around, but you could also do an 8.5 or 9 inch wide wheel too.

Also, do not use the PSS for track use unless you intend to overinflate the tires and run a lot of camber. They will die very, very quickly. Any well known EPT would do better for track use - Direzzas, Hankooks, Potenzas, etc.

They did well in my last full weekend event. I did overinflate them to 40+ cold and they performed alright but I wouldn't mind a separate track tire.

I'm not sure 255 will fit all around. I don't want to do anything like spacers or alignment adjustments to make things fit.

Stock would be 245/35/18. I know those fit for the rears for sure.

[Béhème]

Please see also thread: 17" Kosei Square Track Wheels Fitted

www.2addicts.com/forums/showthread.php?t=1017577

[Liquidpaper]

Originally Posted by five3three

They did well in my last full weekend event. I did overinflate them to 40+ cold and they performed alright but I wouldn't mind a separate track tire.

I'm not sure 255 will fit all around. I don't want to do anything like spacers or alignment adjustments to make things fit.

Stock would be 245/35/18. I know those fit for the rears for sure.

255 will fit -- I have 235/40 and 255/35 on mine, they do fine. You don't need spacers, but you would need a slight alignment adjustment.

[Béhème]

The only reason I can see for going with more than 17'' for track tires on a square setup is that one enjoys paying more for tires.

There is no performance advantage going with larger diameters (lower profiles). The only reason would be if your brake set up obliges you to....

[five3three]

Originally Posted by Béhème

The only reason I can see for going with more than 17'' for track tires on a square setup is that one enjoys paying more for tires.

There is no performance advantage going with larger diameters (lower profiles). The only reason would be if your brake set up obliges you to....

Thanks for the info. My winter wheel order fell through from the dealer (was backordered) so I think I'm ordering winter tires alone and do the mounting and balancing twice a year on the stock wheels.

The money saved by doing this I'll turn around and order a set of 17 inch dedicated track wheels and tires most likely.

[Béhème]

Originally Posted by five3three

Thanks for the info. My winter wheel order fell through from the dealer (was backordered) so I think I'm ordering winter tires alone and do the mounting and balancing twice a year on the stock wheels.

The money saved by doing this I'll turn around and order a set of 17 inch dedicated track wheels and tires most likely.

To save the stock wheels from winter conditions, and the inevitable wear & tear on the stock wheels of changing the tires twice a year, the other option would be to buy 17'' X 8'' aftermarket wheels and mounting 245s for track use and 225s for winter use (in the appropriate profiles). Who cares if these track/winter wheels see some wear & tear?

[five3three]

Originally Posted by Béhème

To save the stock wheels from winter conditions, and the inevitable wear & tear on the stock wheels of changing the tires twice a year, the other option would be to buy 17'' X 8'' aftermarket wheels and mounting 245s for track use and 225s for winter use (in the appropriate profiles). Who cares if these track/winter wheels see some wear & tear?

I totally agree with you there and that's what I was considering. But, my preferred tire choice (Pilot Alpin PA4) isn't available in 17's. And since this is a lease, I'm not too worried about the wear and tear as long as it isn't real chargeable damage.