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

Mobius 03-15-2018 05:02 PM

Children please.

225 on 9 same tire > 225 on 8 same tire. 245 on 10 > 245 on 9 same tire.
In cold wet conditions for autocross, RE71R >> fuckall else, including Hoosier H2O.

icantlearn 03-15-2018 08:27 PM

165 wang fang brand tires on a 10" wheel > everything

/discussion

Dietcoke 03-16-2018 06:16 AM


Originally Posted by MiataMan00 (Post 1471927)
165 wang fang brand tires on a 10" wheel > everything

/discussion

every real racer knows ling long > wang fang

icantlearn 03-16-2018 11:05 AM

:rofl:

concealer404 03-16-2018 11:09 AM


Originally Posted by Dietcoke (Post 1471975)
every real racer knows ling long > wang fang

Gotta put the ling longs on the 10" longerdongers.

zvehrs 03-16-2018 01:53 PM

Grrr so here's my dilemma: I have 9" wheels with worn out old Rivals now. Trying to get new tires for the summer. I will be doing a couple track days and putting maybe 1000 street miles on them over the summer. The Rs4 seems like the best option for mixed use, and it would be nice to be able to use them a couple summers since it seems like they wear out slowly. The problem is Tirerack says they aren't available till June (in 225/45/15) and when I called Discount Tire they said that Hankook doesn't expect them till July. So who knows exactly when they will be available. So my only other options seem to be the Rivals, Kumho V720 (meh), or go up to a 245/40/15 RS4 (which should be available end of April). I am just concerned that the Rivals won't last very long. I am a newb driver still so maybe I will get more than a couple track days out of them?

moocow 03-16-2018 02:01 PM


Originally Posted by zvehrs (Post 1472069)
Grrr so here's my dilemma: I have 9" wheels with worn out old Rivals now. Trying to get new tires for the summer. I will be doing a couple track days and putting maybe 1000 street miles on them over the summer. The Rs4 seems like the best option for mixed use, and it would be nice to be able to use them a couple summers since it seems like they wear out slowly. The problem is Tirerack says they aren't available till June (in 225/45/15) and when I called Discount Tire they said that Hankook doesn't expect them till July. So who knows exactly when they will be available. So my only other options seem to be the Rivals, Kumho V720 (meh), or go up to a 245/40/15 RS4 (which should be available end of April). I am just concerned that the Rivals won't last very long. I am a newb driver still so maybe I will get more than a couple track days out of them?

I'm was in the same boat as you but needed to replace RS3's... curse our limited tire selection. I opted for the Rival S 1.5, which doesn't have too many reviews yet. Worst case is I go back to RS4's in June/July if I destroy these Rivals. If I love the Rivals, I'll get another set of wheels for the track (RS4s) and keep the Rivals for autocross. Either way, $600 for a set of tires grippy tires isn't the dumbest thing I've done.
I'll find out this weekend at Thunderhill just how fast the Rivals are... much excitement :likecat:

concealer404 03-16-2018 02:04 PM

Any rumors of a 225/45 VR1?

Mechatricity 03-16-2018 02:12 PM


Originally Posted by concealer404 (Post 1472073)
Any rumors of a 225/45 VR1?

Was wondering that also. Only 225s available right now are V720s, R1R, or rivals. SUR4G are backordered as well.

matrussell122 03-16-2018 02:13 PM


Originally Posted by zvehrs (Post 1472069)
Grrr so here's my dilemma: I have 9" wheels with worn out old Rivals now. Trying to get new tires for the summer. I will be doing a couple track days and putting maybe 1000 street miles on them over the summer. The Rs4 seems like the best option for mixed use, and it would be nice to be able to use them a couple summers since it seems like they wear out slowly. The problem is Tirerack says they aren't available till June (in 225/45/15) and when I called Discount Tire they said that Hankook doesn't expect them till July. So who knows exactly when they will be available. So my only other options seem to be the Rivals, Kumho V720 (meh), or go up to a 245/40/15 RS4 (which should be available end of April). I am just concerned that the Rivals won't last very long. I am a newb driver still so maybe I will get more than a couple track days out of them?

I should have my car back on the ground in the next week or two if you want to ride in it. I have the 245/40R15 RS4's on 15x9s

MrJon 03-16-2018 03:02 PM

https://www.discounttiredirect.com/b...o-nt01/p/40391

zvehrs 03-16-2018 03:35 PM


Originally Posted by MrJon (Post 1472088)

I've considered the nto1 as well. Can get them off ebay with a 100 dollar discount code so they are about the same price as the other tires in consideration. I know they have a history of wearing well on the track, just suck in the rain. I live in Seattle, and will be putting some street miles on them, so I don't know how well that will work out.

zvehrs 03-16-2018 03:37 PM


Originally Posted by matrussell122 (Post 1472080)
I should have my car back on the ground in the next week or two if you want to ride in it. I have the 245/40R15 RS4's on 15x9s

That would be cool, I might hit you up in the next couple weeks.

zvehrs 03-20-2018 02:25 PM

Just an update for anyone interested. Tirerack now shows the availability for the 225 RS4 on 4/11/18. I went ahead and ordered a set.

PAdutch 03-20-2018 03:15 PM


Originally Posted by bbundy (Post 1401682)
once again tested last weekend on a 40F degree autocross course in the rain. course was wet temp was cold.

Hankook RS4 245/45 on 10" ~ 52 seconds
Hoosier H20 225/45 on 9" ~50 seconds.
Bridgstone Re71R 205/50/15 on 7.5" about half the tread already worn off. ~47 seconds.

didn't try them but I believe the new Continentals sport contact DW or whatever they call it would have been the fastest of all they seem to dominate cold wet conditions. Toyo RA1/R888 are pretty good too.

Freekin night and day difference in trying to drive these tires in the wet. traction limit on the Hankook and Hoosires is like an On/off switch in the cold wet. Not sure how warm it needs to be for the H20's to actually work in the wet but here in the northwest wet weather is rarely warm and in those conditions there are numerous street tires that are significantly faster than H20's and the RS4's are even worse.

Has anyone else had an experience like this? I am currently contemplating buying rain tires for my autocross car and would like them to be streetable (on A7s in the dry). I was considering 245/45 RS4 because I already have a set of 15x10 wheels. It sounds like that would be a mistake and should be getting 205/50 RE71R and some 7.5" wheels. Just wondering if anyone else has any comparisons between RS4 vs RE71r (or other options) in the wet. I'm not ready to commit to Hoosier H20s.

emilio700 03-20-2018 05:11 PM

H20's require heat to work their magic. We have used them in wet conditions and got them hot enough to generate steam clouds when rolling off track. Autocross generally too short to generate that kind of heat.

Mobius 03-20-2018 05:39 PM

Given Bob's level of experience and skill and achievement in autocross I'd just go with RE71R's. And in fact since I have a set of 8" 6UL's in my basement, I'll be putting 205 RE71R's on them this year. They're currently shod in ancient 205 H2O takeoffs. Which ... should go out in a blaze of glory at a dry autocross.

It's a shame they don't make RE71Rs bigger than 205 in 15". I have a friend that works for Bridgestone, I'll see if he can track down somebody for me to give feedback to.

PAdutch 03-20-2018 05:46 PM

That's my only concern with re71rs, they are pretty skinny. Sounds like the way to go though. Thanks for the feedback.

Goingnowherefast 03-20-2018 07:08 PM


Originally Posted by Mobius (Post 1472843)
Given Bob's level of experience and skill and achievement in autocross I'd just go with RE71R's. And in fact since I have a set of 8" 6UL's in my basement, I'll be putting 205 RE71R's on them this year. They're currently shod in ancient 205 H2O takeoffs. Which ... should go out in a blaze of glory at a dry autocross.

It's a shame they don't make RE71Rs bigger than 205 in 15". I have a friend that works for Bridgestone, I'll see if he can track down somebody for me to give feedback to.

You should. I don't give a shit about 99% of the political issues surround our country, but I would lobby in a second for RE71R's in 225/45/15. They are amazing, and exactly what the miata world needs.

cal_len1 03-21-2018 02:25 PM

From the mouth of God himself...


Originally Posted by AndyHollis (Post 1390751)
"Fantastic in the rain"...up to a point. Cannot channel deep water at high speed like a Conti DW or Michelin PSS.

Further, the RE71R compound will not work when its below about 50 degrees ambient and wet. In the dry, you can generate enough heat to make it work, but with constant water cooling the tire, it's "glass tabletop" lack of grip.

Several cars (including me) ran the Stones at One Lap last year and the first couple of events were 40's and wet...grip was awful. The PSS-shod cars destroyed us. The one wet event where it was about 70 ambient...no problem. And when it dried out later in the week, we kicked ass on the Stones.

But...the new schnizzle for the Miata world in "triple-threat" tire is this: ExtremeContact Sport - 205/50ZR15 86W Tire | Continental

I have been testing them on my ND vs the PSS for GRM, and they are very similar. Track, autocross, and street...does it all quite well. But the big news is the Sport will come in a 205/50-15 and 205/45-16..both 23" tall. I used to run the DW in that 16" size on my 92 Miata and it was epic...until they discontinued it. Now, you have two options for early Miata.

The best part is that these tires fill in the blanks around the RE71R. They will channel the deepest water at high speed, have excellent braking and dry/wet handling. Not as fast as RE71R in the dry, but better almost everywhere else. And way less noise on the street.

Truly a game-changer for NA/NB Miatas that are driven on the street. 205/50-15 on 15x8...or 205/45-16 on 16x8.

"One tire to rule them all". You heard it here first. :)



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