Damage

My rear tires are nearly bald and i'm looking to replace them, but when I did a search based on the existing size (305/35/18), only 1 tire came in and that was the Toyo R888s that are already on the car. I'd like to keep the same width as they fit inside the fenders nicely. Bumping up to 315 only gives me one more, the Kumho Ecsta V710s. Which sizes are compatible that would give me more options?

tire and wheel specs from original ad:
BBS Motorsport/GMG World challenge Racing Wheels, 18X12 Rear 18X10 Front
Toyo R888 Tires, 265 Front, 305 Rear

mooty

R888, do not do it. you will regret.
315 will fit fine
265/305 causes a loose car.
why do you have run 305 on a 12" rim?
front at 10" i would do 255-265, rear at 12" 315-335

V710 is not a street tire. it wont last more than 1000 miles.

NorthVan

I run 315/30/18's on the track, no rubbing at all.

DC640

R888 not very popular although they have correct sizing. Nitto NT01 is nice in 18s but rear ratio is only 30, not 35. If you plan to leave TC/SC on for track use, i think system go bonkers. Please confirm on this?

Not much choice in streetable/track use 18s...

Someone said R888 and NT01 have similar compound with diff groove design (Toyo owns Nitto so i think someone made that assumption) I dont think that is true.

BBMGT3

What can you really run on the stock 19" wheels? Max front and rear?

Damage

What do you mean by loose with this config? The 305s are what's on it now so I thought I'd run the same setup and it fills out the wheel well nicely.

So if I go with the Nittos, it would be 315/30 but my fronts would be 265/35 (with current Toyos). Wouldn't that make the front diameters larger than rear? The Nittos don't seem to come in 265 width (245 and 275).

btw, what makes the r888s so bad? so far only negative I've experience is road noise.

mooty

depends.
do you roll and pull fender lip
do you have fender liner
how much camber
do you mind rubbing
gen 1 or 2

mooty

loose = over steer
your stagger front rear is not enough. some ppl like a looser car but it's not a normal configuration.

i wouldn't run different type of tires front / rear

r888 has on grip
strange wear pattern
same money i take RA1 or NT01

Damage

What tire spec would you recommend for the nittos? I assume you're saying my fronts need to be wider to reduce oversteer? Isnt it already wider than stock? What is stock config?

Yargk

Stock stagger is 235 front 305 rear. That's a 7 cm difference. But, less stagger is faster, e.g. Mooty's 255 or 265 and 315 suggestion. That's a 6 cm and 5 cm stagger, respectively, and if available, I'd agree.

However, if you want NT-01s, they only come in 245 and 275 front, I think. You have the big GMG front flares and 10 inch wheels so really, 275 is probably the ticket (might as well). As mentioned above, a 275 front/ 315 rear is not much stagger, so you'll oversteer more. However, cup cars have the same or less stagger, I think (4 or 3 cm). Perhaps you can set your sway bar soft in the rear and run more rear wing. Just a thought.

Slim pickings on tires, isn't it?

kk2

Damage, they're talking about r-comps.. Are you sure you want to run these on the street? How much of a street/track split are you realistically expecting?

kk2

Personally, assuming you are staying on the street, I think you should sell the 18s and go to 19s. That way you will be able to run Michelin pss in 265/325

lawjdc

Michelin Super Sports or Bridgestone RE11's in stock sizes will make you happy. No need for R compounds unless you track, which you haven't said you do.

mooty

no, to reduce oversteer, u want wider REAR

Damage

Ok if I go with Nitto's 275 front and 315 rear, I end up with different sidewall heights though. The 275 is 35 and the 315 is 30. Won't that give me different tire diameters? Especially in the reverse order? I would want larger rear and smaller front?


That's too much hassle to swap out 18s for 19s unless someone has BBS LMRs in 19s with the fronts being 10" and willing to do a straight swap with me. Plus I'm not sure I want more rotating mass with the larger wheels.

Stock sizes are 19" aren't they? If I can get good sticky tires for the street, that would be great if they came in the right 18" sizes.

Ah yes..makes sense.