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-   Wheels and Tires (https://www.miataturbo.net/wheels-tires-78/)
-   -   Hankook RS-4 (https://www.miataturbo.net/wheels-tires-78/hankook-rs-4-a-92176/)

icantlearn 03-08-2017 12:29 AM

If they come out in a 15, sure. But I doubt it. Same with PS4S.

Chilicharger665 03-08-2017 01:13 AM

They make a 205/50/15 already. They will go on my 15x8's nicely.

greddygalant 03-08-2017 01:39 AM

Got 2 sets coming, going to run a couple 8 hour enduros in a vvt swapped NA with MCS and aero at the end of April. Curious to see how they compare to the AD08r we were running before which wore like iron.

icantlearn 03-08-2017 02:01 AM


Originally Posted by Chilicharger665 (Post 1397384)
They make a 205/50/15 already. They will go on my 15x8's nicely.

Oh. I didn't know that. Interesting.

aidandj 03-08-2017 02:02 AM


Originally Posted by greddygalant (Post 1397385)
Got 2 sets coming, going to run a couple 8 hour enduros in a vvt swapped NA with MCS and aero at the end of April. Curious to see how they compare to the AD08r we were running before which wore like iron.

225s?

greddygalant 03-08-2017 08:44 AM

Yep!

AndyHollis 03-08-2017 08:57 AM


Originally Posted by MiataMan00 (Post 1397387)
Oh. I didn't know that. Interesting.

There is also a 205/45-16 in the Conti EC Sport...same basic OD as the 205/50-15 but for 16" wheel folks. Both are good options for early Miatas.

JasonC SBB 03-08-2017 10:15 AM


Originally Posted by ThePass (Post 1397122)
Fully expecting Super200 wear rates (aka nearly Hoosier wear rate and nearly same drop-off after 50% life).

And is the track wear rate of those Super200 tires worse than the RC-1?

emilio700 03-08-2017 10:48 AM


Originally Posted by JasonC SBB (Post 1397427)
And is the track wear rate of those Super200 tires worse than the RC-1?

Because they are much softer and have tread sipes, which generate heat reduce void/tread ratio. Super200's are race tires with race compounds. That is hyperbole.

Have you been under a rock? Not like you to be so behind the curve Jason.

JasonC SBB 03-08-2017 11:17 AM

Ah thanks yes, I'm behind on this Super200 phenomenon.
I think I'll spring for the R-C1's.

Lincoln Logs 03-09-2017 01:30 PM

Ordered a set of 225 RS-4s, should be here tomorrow and I'll autocross on them Saturday.

doward 03-09-2017 06:17 PM

1 Attachment(s)
We got ours mounted up on some fresh Beryllium 10" 6ULs today!

Attachment 181669

Much excite.

flier129 03-09-2017 09:28 PM


Originally Posted by doward (Post 1397767)
We got ours mounted up on some fresh Beryllium 10" 6ULs today!

http://i20.photobucket.com/albums/b2...psieqb0gmu.jpg

Much excite.


MmmmMMmmmmm. I do need another set of wheels. Currently have two sets of 9s, one with rs3s, other with r7s, I could ditch the rs3s on use that set to scrub stickers... I could run this setup for the "street" :D

emilio700 03-12-2017 01:38 PM

Hankook RS-4 : First impressions
 
Disclaimer: Not a controlled A/B test.

Evaluating the 225/45/15 Rival-S 1.5 on 15x9 6UL and 245/45/15 Hakook RS-4 on 15x10 6UL yesterday
Roadster Cup TT at Streets of Willow
Car is Snoopy. 2003 Club Sport, 800/500 Xida, 54103 front, SPM adjustable 14m rear, Urethane bushings.
OS Giken 4.875 with SPM tune, 5 spd, blueprinted NB2 engine on pump gas. Not tuned yet but we estimated 130whp

Sonny and I pretty much matched each others times. His set earlier in the day with no wind and slightly cooler temps on 225 Rival-S 1.5. Mine a tick faster in warmer, windier conditions on the 245 RS4's.
Track temps were about 70° in the morning rising to about 95° in the afternoon. The RS-4 definitely preferred the track about 15-20° hotter than the Rival-S. We would opine that the RS-4 continues the Hankook 200tw tradition of being good in the heat. Most of our fast laps on the RS-4 in a session came at the end, after 5-8 hard laps. The Rival-S seemed to be best on 2nd or 3rd lap. Keep in mind that's with these track temps.

Sonny and I both agreed the 245 RS4 had a a skosh more lateral grip than the 225 Rival-S 1.5. While the Rival-S steering precision was improved, it was still fastest with a bit more slip angle than the RS-4. We did about 3x as many laps on the RS-4 as the Rival-S but the Rival-S showed more wear.
Snoopy doesn't quite have enough power to take full advantage of the prodigous grip of the 245 RS4 on this tight road course. Haven't looked at the data from the skidpad portion of the track but I'm guessing we were 1.5g sustained on the RS-4's. Nuts!
We rolled the fenders last thing before aligning it Friday and didn't quite tuck everything back enough. We caught the front bumper/fender seam on the shoulders and did some tire carving. Minor, fixable. Liners are out.
The Rival-S were, as Tomy Reynolds observed, not too picky on pressure but we did, as always, try to run them as low as possible. The RS-4 was also tolerant of a wide range of pressures.
What stood out to me was the RS-4 exceptional responsiveness, precision and linearity at the limit. 200tw's are getting more and more like race slicks in that regard. To be truthful, none of us felt like we got everything the RS-4's offered in terms of lateral grip.
It was hard to adjust to a "street" tire than welcomed 1.6g corner entries with a manual steering rack on a few of the gently banked turns.



https://cimg2.ibsrv.net/gimg/www.mia...17e786e5de.jpg

aidandj 03-12-2017 01:51 PM


Originally Posted by emilio700 (Post 1398253)
We did about 3x as many laps on the RS-4 as the Rival-S but the Rival-S showed more wear.

:x::skid:

Bronson M 03-12-2017 02:09 PM

Whew......Good cause I just ordered the RS4 last night

icantlearn 03-12-2017 08:02 PM

You say the rs4 is responsive eh? So, if it has a stiffer sidewall theoretically it should work better on a 9 than the other 245 offerings? Is it stiff enough to be faster on a 9 than a 225? Time will tell I guess.

Colipto 03-13-2017 09:44 AM


Originally Posted by MiataMan00 (Post 1398310)
You say the rs4 is responsive eh? So, if it has a stiffer sidewall theoretically it should work better on a 9 than the other 245 offerings? Is it stiff enough to be faster on a 9 than a 225? Time will tell I guess.


IIRC

245 x10 > 245x9 > 225x9

But really - No one knows, yet

JasonC SBB 03-13-2017 11:08 AM

OK I'll ask again :)
Is there enough info now to estimate track life vs. the RC-1?

aidandj 03-13-2017 11:10 AM


Originally Posted by emilio700 (Post 1398253)
We did about 3x as many laps on the RS-4 as the Rival-S but the Rival-S showed more wear.


Originally Posted by JasonC SBB (Post 1398393)
OK I'll ask again :)
Is there enough info now to estimate track life vs. the RC-1?

Already shared what they found


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