pawntec

I picked up a new to me 2010 LNF with 52k miles and I'm the 3rd owner of this way to be clean SS so i swooped it up last October and drove it up the ALCAN last November which was a blast. I did pick up some alpine studless tires for the drive but it's mainly a summer car for me. a cheap set of no name new tires were put on the car at the dealership before i bought it.

I'm looking at replacing this cheap tires with something i could driver it on the streets and take it to the course on the weekends. I'm set on either super sports, sport cup 2's or the new ps4s. I'm leaning towards the ps4s's myself but the only 18" tires they make are the two sizes wider of 245/40ZR18.

has anybody swapped a set of tires that size into the factory wheels/height without any rubbing? I've even thought of maybe some 17" with some shims to clear the calipers but I'm pretty happy with the factory wheels.

63 Nova SS

iTrader: (3)

245 are a little wide for that rim. 235 is as big as you really want to go unless handling isn't as big of a concern. 245 will fit as far as width, 255 is where you can get into trouble.

cluelessk

That and the sidewall starts to get pretty big. Too much height and width won't actually handle great.

Plus 235 is fine the extra 10mm wouldn't make a difference.

63 Nova SS

iTrader: (3)

My summer Yokohama advance neiva ad08r tires 235-40-18 mounted on 8" wheels are as wide as my 245 drag radials mounted on 7.5's. They really need 8.5 wheels.

zeeky420

I thought Powell runs 255 for his car? Unless your talking just run to tire size?

cluelessk

Probably on a wider wheel and a smaller sidewall profile.

You put a wider and taller tire on a narrow wheel and it'll roll more.

zeeky420

That's what I was thinking because I'm getting 17x9 so I can run 255/40

63 Nova SS

iTrader: (3)

255 on a 9" is great, don't know about it stuffing under it though.

mzspd

I would go 235 on the PSS. The PS4S tire is new but it really isn't that much different then the PSS. Basically, unless you are a dedicated track junkie, you won't notice a difference.

Eventually they will release the PS4S in that size but it will take probably a year.

Here is a good review on them. Matt Farah is a huge fan of the PSS and PS4S.

Farah Tested, Farah Approved: Michelin Pilot Sport 4S - The Drive

CudaJoe

iTrader: (1)

im using 235/40/18 and its enough tire for me. Running on an 18"x 8" wheel (enkei m52). I believe stock wheels are 18" x 7.5"

63 Nova SS

iTrader: (3)

Love m52's. Would like to get a matching set for the Saab.

09ssbeast

would 245/40 fit on the M52's

Omiotek

iTrader: (2)

Powell runs 245 40 18 on a pf01

Snail_SS

iTrader: (3)

The pf01 and m52 have the same specs 18×8 and 40 offset

Extreme Dimensions

iTrader: (17)

i had 235/40/18 on 18x8 enkei pf01 and they fit fine! hankook rs3 or dunlop star specs were always fun!

63 Nova SS

iTrader: (3)

Like others have said-yes

cluelessk

Just realize you're adding sidewall height. Wide doesn't always mean better.