I'm about to order some Yokohama Advan Neova AD08 tires to replace the PS2s on stock wheels:

Front: 245/35/19 (rim size 8.0-9.5)
Rear: 275/30/19 (rim size 9.0-10.0)

According to Yokohama's site, they should fit fine on the stock wheels (8 and 9 inches, respectively).

However, the AD08 runs VERY wide, easily a full size wider than a PS2. I am worried about fender rubbing. Has anyone tried these tires in 245/275, or possibly a PS2 or another tire in 255/285?


Here is a 255/35/18 AD08 next to a 255/35/18 Dunlop Direzza Star Spec (which also runs slightly wide):

 

Not sure about AD08, but a friend of mine is running Neova AD07 245/275 on stock wheels no rubbing and his F is 1" lowered.

I guess you should be fine with 245/275 on stock wheels.

Yes, Advan Neova and Dunlop Direzza Z1 SS are oversized tires.

 

Search is your friend. I'm running 285/30/19 - 245/35/19 Continental Extreme Contact DW on stock wheels. Look Here:

https://www.clublexus.com/forums/is-...xtreme-dw.html

Lou

 

I am running 245/35ZR19 and 275/30ZR19 rear Continental ExtremeContact DWS tires on my stock rims, and there is a lot of extra room. Obviously there is never a guarantee unless you know someone running that exact tire, but I am pretty sure you will be okay. A quick look at tirerack.com showed that the section widths for your tires are slightly narrower than mine, but with tread widths that are slightly wider...you should be fine.

 

i have 295/25/20 and 255/30/20 sport pilots ps2's and im not rubbing in the front, got the fenders rolled in the back for $200 tho lol

 

^^^ I have the same sizes. Got my rears rolled for $60 though and looks perfect lol.

 

I think you should be fine with a 285 in the rear on stock rims.

 

With stock suspension and stock wheels, you can swallow up 275s and 285s with ease.

 

Has anyone done a 255 up front on the stock rims. I see a lot of 245, but I'd like to try and dial out a little much understeer with 255s.

 

^^ 255 is considered out of spec for the stock front rims, you need at least 8.5" for that. Still, maybe someone has done it.

 

Just curious, has anyone tried 245/40/19 in the front and 275/35/19 in the rear? I wonder if it would look funny and if there would be clearance issues.

 

You should still be fine...I know a guy who ran 255/40R19 and 295/35R19 on aftermarket wheels without rubbing. There should be no rubbing problem with your above suggestions on stock wheels. The only question is why do you want to go that tall, since they are about .7" front and .6" rear taller than stock respectively?

 

^^ Thanks, that's very helpful.

The reason is this: the outside edges of my front PS2s in stock size are completely cooked. They have 4k street miles, 2 autocross days and 1 track day at medium pace, it's been HPDE/schools so far. Otherwise, the tires have quite a bit of tread left but are no longer usable for any events. They just love to roll-under at the track, to the point that half of the "Michelin" sign on the sidewall is worn off.

Obviously, I'd hate to buy new tires every few months, so I'm looking at directional tires. They can be flipped on the wheel in order to get twice as much useful life out of them at the track. This limits the choice to the following:

Hankook Ventus V12 Evo K110 -- good for street but mediocre at best for track, soft sidewall
Yokohama ADVAN Neova AD08 -- excellent for track and street, on par or better than the Dunlop Direzza Z1 Star Spec, tough sidewall

The obvious choice here, the Yokohama AD08, is a standard load tire, aka SL. The IS-F requires XL tires. In 245/35 and 275/30, the Yokohamas are rated at 660 lbs less max load than the stock PS2s. Two independent sources recommended against using them on the street as they would be prone to blow-outs when hitting bumps and potholes.

Fortunately, the AD08 also comes in 245/40/19 and 275/35/19. At that size, even while being an SL tire, it has a higher max load than the stock PS2s. Combined with the bigger sidewall, it would be just fine for street. Speedo would be 2.4% too slow and acceleration would suffer slightly, but not enough to impact anything. I'm just tracking for fun anyway. If I wanted to be competitive, I wouldn't drive an IS-F in the first place

Of course, another option would be to stick with a good asymmetric tire for street, one that has long life and decent grip (Continental DW or DWS), then buy a set of lightweight 18" wheels and something like Direzza Star Specs 275/35/18 all around. Those should easily last 1-2 seasons of events as they are also directional and can be flipped.

Of course, if someone would finally make a front camber kit for the F, that would simplify things quite a bit. 2-3% of negative camber would be amazing, but it doesn't seem to be possible at this time.

 

I believe quite a bit of members are running 245 F/275 R setups without any problems on stock rims.

 

Why not try the new Pilot Super Sport? From what I have been reading, it holds up very well in all conditions, to include autocross. It is quite a bit cheaper than the PS2, and is said to perform better and last longer. It cannot be flipped on the wheel though. It's load ratings are better than stock as well.

I'm pretty sure that I am going to buy a cheaper set of wheels and put my Continental DWS's on them for winter and then put 245/35R19 and 275/30R19 Pilot Super Sports on my stock rims.