I have a corded one I can send you.

Awesome! I sent you PM. Let me know how much it'll be.

I'll post up fitment pics when it shows up.

Has anyone tried putting an 235/50/15 R888 on these? I'd imagine the amount of stretch wouldn't be extremely rediculous.

Just a little stretch. The 235/50 R888 hangs over the side of our 9

In my experience, the 225 NT-01 in a 9 would still probably be a faster combo. The R888 didn't heat cycle well and got greasier than the NT-01. If you are set on having the 15x10 and don't like the R888, then you would have to run 275 slicks.

Just my :2cents:

How long will R6's last on the street? If I could pull 3-4k out of them, then they are doable...

Ah that's great to hear. I'm looking at a setup with 225/45 or 50 in front with the 235/50 in the rear with flares, so I guess 15x10 is the way to go!

oh man, you are going to have some fun fitting a 235/50.

Really?!

It will fit with flares (I had Jubiride in mind), even at a lower offset than these 6UL's.
I do not intend to slam the car so I don't believe hitting the wheel well will become an issue.
But I'm just thinking aloud here, I'm not really intending on making this happen anytime soon, but you never know.
Sometimes you just got something in your head and you have to do it, just to get some sleep at night :P.

*shrug*

One could dream. We have a few guys locally who run them on the street, but I haven't had a chance to see how long they last since thinking about the idea.

Here's a picture of one of them. blown 402

Anyway, can't wait to see how the 235 R888's look on it. If they aren't too stretched, it might be the motivation needed for the 15x10's!

Is running slicks on the street legal in the US? Here in Holland they'd probably impound your car for something like that! :P

No its not, but when you are dropped, most cops have a hard time telling, your tires will be tucked in too far for them to notice.

100% legal - any "DOT" tire is legal for road use in the United States. Many "DOT" tires aren't designed for road use at all (Hoosier A6/R6, Hankook Z214 C71/51) and some have "Competition Use Only" on the sidewall (Nitto NT-01, Toyo RA-1/R888), but all of those tires are technically legal for use on US highways.

^I stand corrected, DOT tires are street legal!

That's crazy :P! R888's and similar tyres are legal here, but they will often pull you over for them anyway.
I was thinking about it a bit and the hoosiers might actually be technically legal because they have two ridges running along them, but I'm not sure.
As far as i know the the law here only states the tyre needs to have a tread that is a certain depth, it says nothing about width or percentage of the tyre consisting of tread.

Yeah you can do it of course, DOT is DOT. I just had not heard of anyone seriously wanting to run R6s on the street. It would be cool, but eeeexpensive, and very prone to hydroplaning. You can plan around the rain, but not water sprinkler runoff and the like. And they could cycle out quickly so it would not be good if you ever want to use them on the track.

Back in my drag days, we ran 28x11.5 QTP's nearly year round. They'd last a season or two, hence my question about the R6's being a RR compound. R888's would probably be a smarter move once someone posts a picture of them.

Hoosiers and anything else without an E-marking are illegal in the EU (RA-1, NT01, RS-3 etc). And R888s and other semi's will soon be illegal too..good thing that they are currently too occupied with other issues to push through the legislation.
You must be a rich man for want to run the 225 and 235 R888s on the street at 1000$+ a set and rapid wear.

NT-01s are $600USD/set and you can get 5000-6000 miles/set out of them - just can't use them in heavy rain. The other good street-R option is the RA1 - I've heard the Toyo RA1 referred to as "the best street tire in the world" on more than one occasion.

R888's are not exactly a rapid wear tire. I ran R888's this year on 3 track days, one hill climb and approx 5000KM and they were not even near the wear bars yet. I know one guy who ran R888's on his BMW M3 for over 20,000KMS of street use only. Have fun in the rain though...

Depends on the compound maybe..I've had 15" SG compounds that lasted 3 trackdays under an underpowered boatanchor.

15x10 6UL, 245/580R15 Hoosier R80, Autokonexion +30mm fender. I also cut the lip off the fender (what you would normally roll on a steel fender) to make sure I still had 90* of wheel input at full bump.

It fits https://www.miataturbo.net/attachmen...ine=1323570034

https://www.miataturbo.net/attachmen...ine=1323569936

Those 10's with the extra concave compared to the 9's are beyond sexy. Its such a shame we will not see a street tire for them anytime soon. It almost makes me want to stretch 225 rs3's on there just to have that sexy rim on a daily basis.

I know its sacrilegious, but I am really contemplating running these daily with stretched tires....:bang:

You're right I forgot about the E-marking thing. A few years ago it was alittle bit different in Holland, as you didn't need an E-marking on your tyres.
Where did you get this info about other semi's becomeing illegal? I hope that's just a rumour, as that would eliminate avery wide tyre choice we have here for Miata's.

*

Regarding EU E-markings, there was a turmoil a few years back when the HA-oils were banned, but it was solvable (just purify the additives to go below the bar) and it will be the same thing whatever changes they make (unless they ban everything with TW<200 or similar (it must of course be a new measuring standard)).

I personally lack 225/45-15 in anything else than R888 (RS2 is not an option).
Kumho V70A have worked nicely for me in 205s (1% faster than R888 and don't overheat as badly), but it has been a long time since they produced 225/45. Order 100sets and they will make a batch (so I've been told by Kumho Motorsports)...
I don't like the feeling of 225/50, feels like off road tires.

You can get the R1R in 225/45/15 here, but I feel it's more of a street tyre than an actual racing tyre.

Looks great! I am really digging the nickel color rims.

Just noticed this. I promise you that the 235/50s will not fit, even if you flare the car. If you want 235/50s, and you expect to drive the car hard, you will need to tub the car front and rear and run a very low offset wheel. Flares only help with fender clearance - if you are driving a tall tire up into the top of the fenderwell, flares won't help.

The issue is the height. Because that's a 24.25" tall tire, you will need to run a taller bumpstop in order to keep the tire clear of the top of the fenderwell and shock tower. Because the bumpstop is taller, you lose bump travel if you maintain ride height, or you lose droop travel if you raise the car to compensate. The only way to maintain travel would be to run a custom shock that's sized to maximize travel at a 4.7-4.9" pinch weld height, and if you have that kind of coin, you should just be running R80 Hoosiers instead.

You will also rub the front bumper and the back of the fender when turning, both due to the height of the tire.

This is why you have to stick with a tire no taller than 23.0", regardless of how wide it is. The three popular Miata tire sizes are 205/50 (23.0"), 225/45 (22.9"), and 245/580 (22.9").

http://www.westermann-motorsport.com...245-40-15.html

There you go opgedronken
245
22.7"
Just a measly 1050$ before shipping, so not much more then the toyo 225 equivalents. And its a streetable tire too (kind off).

+1

I’m completely eliminating the stock fender wells just to run a 23.5" OD tire. 23.5X11 R16 to be exact.

23" OD is max you can run and have a proper working suspension in combination with the stock wheel wells regardless of what flares or fender lip mods you do.

Bob

Thanks for this elaborate reply!

I do not intend to track the car at all, there really are no feasable options in holland.
This setup would be purely street driven, and not intended to be the most "functional'.
I'm wondering then how do people drive on their 225/50/15, or a very commonly used size 215/40/17?
These are both about one centimeter less tall then 235/50/15.
The front fitment wouldn't trouble me that much as I wouldn't even think about using 235 there, more likely a 225/45/15.

As for the 245/40/15 Avon's they're actually pretty affordable down here, it's just that I'm shooting for a particular look ;).

no one really uses 225/50/15s. There were some previous attempts at fitment, but I think most gave up.

i don't know about 215/40R17, thats probably an NC fitment if anything.

That wheel looks bauce.

It's very commonly used on 17" tuner style wheels, atleast here in Holland it is.
I've dug up a quick pic of a reletively fat tyre in that size, and I have to say it looks pretty doable.

Edit-- 205/45/17 is slightly higher than 235/50/15 even!

https://www.miataturbo.net/attachmen...ine=1323979595

This thread needs more pics of 15.10 6UL's installed on a miata with autokonexion full fenders. Pics like Sav's....just more of them.

that tire is likely to be 215/40R17. Try it if you want, but you have gotten our guidance already. I think 23" is a pretty clear and easy number to understand.

+1, yes please.

Stock size on the MSM is 205/40/17, 215/40/17 can be run without rubbing at stock height. I ran 615Ks in 215/40/17 before upgrading to a 6UL/RS3 combo. Never had any rubbing at stock height on street or the one track day it saw. Once the car was lowered rubbing was easily induced with dips in the road or mid turn bumps at silly speeds.

No rubbing on autox courses with 225/50/15 V710s on 6ULs.

Mine rubbed all over the place with this setup. Had to add spacers to the bump stops to keep from smearing the tread material off on the inner fenders.


275/35/15's rubbed a lot less but still rubs. Need 5mm spacers with the 949 15X10 wheels to keep from rubbing the inside tire wall above the shock top in the rear and on the shock top in the front.

225/50/15 kumho V710 = 23.7”
275/35/15 Hoosier A6 = 23”

Bob

V710 has tread? Mine were almost to cords when finally lowered, maybe that's why? Or maybe my lack of driving skills.

They have tread material not really a tread pattern.

The amount of suspension travel you use has a lot to do with how much cornering grip you are extracting from the car.

Bob

I stil use a 225 50 r15 fits fine newb u just cant rape the car like bundy and savington do with that combo.

I don't get it. why use a tire if you don't use it fully? Some punctuation would help btw.

It wouldn't really matter on a street car. Look at all the people slamming their cars, that's not founctional on the track either.
With big tyres, instead of dragging frame on the ground, you'll be dragging tyre in the wheel well ;).
If you want to use these 6UL's on the street, a bit of ''unfunctionality" is unavoidable I guess.

sure it doesn't apply for you, no one said don't run them, or that its impossible, we just said fitment is not good.

For him, he is talking about track/autocross. I don't see the point of running 225/50 and taking it easy/easier so you don't rub, when a 225/45 won't. :dunno:

To each their own!

For the record, 225/50-15s look like BFG Mud Terrains on a Miata. They're almost full on Co-op brand tractor tires.

*

I think you would need a pretty severe pull, and enough camber to ruin those nice tyres. Then again tose are 205, you can get that size in not so nice tyres :P.
As for 225/50 looking like tractor tyres. I think they can look good if executed correcly.

https://www.miataturbo.net/attachmen...ine=1324343220

I'd Imagine flares with 225/50 or 235/50 on 6UL's looking badass if used only on the rears.
I may be in a small crowd with this, but I think forward rake is awesome :P.

*

That would only really work with R888's though. R1R's and RS3's aren't nearly that wide.

those ARE 225s, it says it on the tire in the picture in faded blue letters. Although I guess maybe not, he says they are 205s.

Considering that the blue number is actually 226, the ówner of the tyres claims they're 205's,the fact that a few pages back the same tyres are show with the stickers which clearly say 205/50/15 ánd the amount of stretch, I can say with a reasonable amoun of certainty that they're 205's ;).

Huh, when was this thread moved to CR.net?

In for pics of these things mounted with non-gay (ok less gay) tires on vehicles with actual uses beyond being pretty and impressing all the boys in the street. Didn't Sav rattlecan those fenders black yet? :)

Hah. I won't have them painted for at least a couple of months. Theseus is on hiatus for a while so we can get our turbo kits released on schedule and get the Red Rental prepared for NASA enduros next year. Once our kits are close to completion I will have some time to get the new turbo setup in place, get the fenders fully installed/painted, etc.

Theseus eh? Niace.

the 205 on that 10 inch looks less stretched than my 205 all season on a 9 inch.

thinking about getting that meaty ass tire for my 9 inch.

How would these feel with no power steering?

Not the greatest pic, but after hours of messing with the fiberglass the front is mostly together with the 15x10s. This is the first and hopefully last time I work with this stuff. :cry: Now for more zipties, brake ducting hose, radiator ducting, and splitter fitment.

https://www.miataturbo.net/attachmen...ine=1326063337