Yokohama Advan AD08R Size Help
 

My apologies for starting another tire size help thread, but I am trying to decide on the optimal size setup for my stock Nismo wheels. Any feedback is appreciated. I have included the sizing available in the chart below.

The stock Advan Sport sizes are:

Front: 245/40ZR19 26.8" Diameter
Rear: 285/35ZR19 26.9" Diameter

I am leaning towards either:
Front: 265/30R19 25.4" Diameter
Rear: 295/30R19 26" Diameter

or

Front: 275/30R19 25.6 Diameter
Rear: 305/30R19 26.3" Diameter

Thanks! :tiphat:

http://i1090.photobucket.com/albums/...ps24b37b5e.jpg

Front: 275/35R19 26.6" Diameter
Rear: 305/30R19 26.3" Diameter

Thanks for the input! You think it is okay to have a larger diameter in the front than the rear?

the most important thing is to have a very close diameter, so those would give you .3" difference while using a /30 in front would be .7" difference.

In other words:
Front: 275/35R19 26.6" Diameter
Rear: 305/30R19 26.3" Diameter

.3" difference


Front: 275/30R19 25.6 Diameter
Rear: 305/30R19 26.3" Diameter

.7" difference

Makes sense, thank you! I could run the following setup with only .2" in difference, but the width difference front:rear would be much larger:

Front: 255/35R19 26.1"
Rear: 305/35R19 26.3"

or even
Front: 255/35R19 26.1"
Rear: 295/30R19 26"

Thoughts?

Im guessing youre going with the AD08R's because you want the most grip, so why not go as wide as possible? The 275s will give you the most front end bite and will reduce understeer

Yes, you are correct. Mostly looking to put power down more efficiently. I think I will end up with the 305/275 setup. Thank you for all the help!

Just wondering where did you pull that chart from? I'm looking for something similar

It was pulled directly from the Yokohama website. Tire Rack has similar information, but their chart was incomplete for this particular tire.

Thanks!

Hi. I ran a 265 and 305 setup and went down to a 295 rear, less nose push and tyre fits rim much better.
I track my 370Z once a month and with the 265-30 front and 295-30 rear setup its great. Hope this helps.:tup:

Thank you! That is very helpful. What wheels are you running? I was thinking the 305 would be okay on the Nismo rear wheel since it is 10.5" wide, but would like input. Thanks again!

I'm running 275/35 front and 305/30 rear Hankook RS3 tires. Watch out for the front though. It all depends on your ride height, wheel width/offset, and alignment settings. I'm running stock alignment with 19x9.5 +22 275/35 up front and bashed in my fenders pretty good LOL. I hit a pothole and the wheel straight up bent my fender tab and pushed my bumper out. Something to watch out for when running super meaty tires. Then again most track guys say to run around -2 camber in the front and around -1.7 rear 0 toe all around I think (I might be mistaken though, don't quote me on this).

Anyone else with additional input? I am hoping to ride the stock Advan Sports out until spring, but would appreciate any other feedback on sizes for when the time comes.

Bump for ideas! I think I'm 90% decided on 305/30R19 and 265/35R19.

I would go with 265/35 - 295/30, that's what I'm getting for my new wheels that's 9.5/10.5, fits wheels the best, I think a 305 rear is too wide. You would want to get 11's if you want to run that wide with such a small sidewall.

I would personally go with 265/35 up front & 305/30 in the rear, but with Michelin Pilot Sport 2. This set up would work & look sexy.

I was thinking the 305 might be a little wide, but lots of people run the RE-11 I that width on 10.5" wheels. If I go with the 295, I may drop down to a 255 front to keep the overall diameters close to each other. The 265/305 setup is only .1" different overall front/rear, which is the same as stock. Tough to choose!

I am still leaning towards this size combo. I am pretty dead set on the AD08 R though after my research. It was down to those or the Toyo R888, but I don't think I'm ready for such a soft tire as the R888s. I'm looking for something nice and sticky to put the ~400+TQ to the ground. Have experience with the PS2s?

On a 10.5" wheel 305 is more than fine! Rule of thumb, don't exceed 20% tire to wheel width. 320 tire would be 20%.

305 is more than fine, but I'd go much bigger on the front. Keep the front and rear close to avoid understeer these cars already have.

Thank you :tiphat:

I was originally looking at 275s for the front, but saw the earlier post mentioning the possibility of fender damage with that size and a big bump or potholes. The roads are garbage here in Charlotte, so it concerned me.

I could see it happening with almost no camber, lowered, and a lot of low offset. But you're running the OEM wheel so offset isn't an issue. Not sure if you're lowered or not.

PS the OEM alignment numbers are garbage. Even if you are stock springs/coils I vote you get camber arms and get a bit more aggressive than stock. Even on the street I'd shoot for close to -2.0. You definitely shouldn't rub with that camber and factory wheels, lowered or not.

Makes sense. I'm factory height and have camber arms right now. I'll have to look into the 275 setup with a little more camber. Thanks for the input!

Track guys love a square setup. Everyone seems to be doing it. You could even go 285 in the front if you insist on 305 in the back.