Help: Tire recommendations for new 19x10.5" square for DD use and tire rotation

PharmDZ

He has more reps and likes Shaun. If you don't agree with him you're just as retarded as I am.

But anyways, 19" definitely gives you some better tire size options I think. The 18's I went with needed that odd size 40 aspect ratio to keep the rolling diameter/ride height closest to stock.

shaun66

Oh well nice looking setup

PharmDZ

Who said the r888s were for street driving? They're for track days I do here and there. Otherwise I use the stock rays (or another car) year round. And they are absolutely not super stretched. Using the ideal tire/rim width calculator (Car Bibles : The Wheel and Tyre Bible Page 4 of 4) the 275/40r18 can go on anywhere from a 9-10.5in rim. Not saying 10.5 is a perfect size but it's not stretching a 255 onto an 11in rim. Still feel as if you're blowing it out of proportion.

GSS138

I thought for some reason you had 10.5 front. And TY for telling me they are track day tires. Personally I really like the way your car looks. What kind of setup do you have?

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jooonnn

I want to say.... That he has the same or similar wheel setup to martin's with slightly different offsets. I may be wrong though. It is a 10.5" front from my understanding. Martin is one of the main guys that actually inspired me and helped me pick my 19x10.5"+30 square setup.


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FuTuRe is Z

You guys would kill me for having a 255 on a 10.5 wheel, lol.

That was on my Genesis Coupe. I won't be replicating that, since I've got a Magma Red Z I have to stick to a more classy look. Although I wish I could do a little tuner style with it.

As for safety, honestly guys unless you're driving the car around corners way above the speed limits running a stretched tire is not a concern for street use if it's nothing to outlandish. As for the track you must run the correct tire width or it will lower your lap times. By the same token too wide is also detrimental.

wrxrcr

I ran a 245 on a 9 inch rim vs 8 inch and it was faster, better turn in, maximizes tire contact patch. I raced with this setup for over a year, many autox racers stretch tires.

PharmDZ

I do have 10.5" in the front and want to go with a wider tire setup in the future. I did shortchange the size a bit but it still felt great on the track and from the wear on the tire it looks as if I've maximized the contact patch just fine. Again I am NOT saying this is ideal or that everyone should run this but simply that this is MY experience with MY setup thus far. The biggest difference I've noticed is that with the wider front tire vs the stock 245 the turn in is fantastic. Felt like I had to fight it a bit when I was autocrossing on the RE050's.

jooonnn

I realllllllllllllllly want to go with a 295/30/19 (or even a 305/30/19 MUHAHA jk) on the front and rears with my new square setup. I feel like that would be square enough on the wheels and short enough on top to minimize inner fender rubbing. I'm just worried about "inner suspension/brake" clearance as it says on the rim and tires calculator online. I have no idea what that means and how that affects the front.

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GSS138

10.5 up front is what I run with 285's. It is a quick easy and relatively inexpensive way to cure understeer. I am not sure it is all that Ideal myself though since it is inadvertently going to affect acceleration. I have RPF01's which are +15, and once I put a suspension on, I may have to roll my fenders a bit.

There are other ways to deal with understeer once your suspension is tunable. But for a quick dirty way to cure it, square setup on 285's works great.

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synolimit

It does. And no need to go above 9.5" if you're going 285 square. Keep the weight down and no stretching if tire brand changes.

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13 370z-

chops

wait what?

synolimit

What are confused about

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13 370z-

jooonnn

What do you guys think is the upper limit (most negative) for camber on fronts for daily use? Im gathering camber helps reduce rubbing slightly , just wondering whats too much since the stock specs have a decent range to them.


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wrxrcr

No more than 2 degrees for daily.