Valkyrie

Wouldn't doubt it since they're the same company.

Neovas are great in the rain, fwiw...

R888s are the cheapest R-comps ("S tires" in Japan) that I can find here. Thinking about giving them a try at some point.

LargeOrangeFont

iTrader: (7)

My 275 RC1s are killer, I have been really happy with them. But I had to change a few things to get the balance back to where it was with NT01s.

I'd daily drive on NT01s, they are not too bad at all. I'd daily RC1s too but it is more risky with no tread at all.

I do not see much difference in straight line traction between the NT01 and RC1.

LargeOrangeFont

iTrader: (7)

How many track days are you getting out of a set of Extreme summer tires? I can get 10 out of a set of NT01s and RC1s. 8 of those do not have significant fall off.

I typically run between 90 mins and 2 hours of track time per day.

BLUE TII

iTrader: (9)

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I do not see much difference in straight line traction between the NT01 and RC1.

Alright! Another and opposing data point to mine.

I wonder if is because the cooler ambient temps up here at the Oregon border area of CA that the RC-1 grip better straight line for me.

I have to admit, on the street I didn't ever prepare the tires with a warm-up like Monsterbox. I just put the pedal down and prayed.

LargeOrangeFont

iTrader: (7)

I did the same.. my street experience with these tires is pretty anecdotal, but one was not noticeably better than the other.

I can drop the hammer with both tires and they both generally stuck ok. I don't expect much grip out of either of them until they get a bit of heat in the tires.

ArmenMAxx

iTrader: (21)

I cant say regarding the RE71r's.. Ive only done one track day with them. I prob averaged 8-10 track days with the Rs3's and Zii's each and a few thousand street/canyon hard miles ontop. RS3's starting falling off their peak after 5ish track days. ZII's were strong until 8-10 days which wore them past the wear bars.

BLUE TII

iTrader: (9)

I can drop the hammer with both tires and they both generally stuck ok. I don't expect much grip out of either of them until they get a bit of heat in the tires.

Ah. For me if I put the pedal down the 275 NT01 would spin 1st, 2nd and almost kinda hookup in 3rd.

The 255 RC-1 would spin 1st and most always hook up in 2nd.

225 RS3 spun 1st, 2nd, 3rd and even 4th from a roll but hooked in 5th. That moment is when the RC-1 became my street tires.

255 MT ET Streets (after 2nd gear burnout) at 12psi spun 1st, but not so bad I had to lift appreciably and they hooked 2nd. So-so prepped track.

ZDan

I did one, ONE, track day on my RE71Rs and wore the outside rear to below the treadwear indicators. This was at Talledega Gran Prix Raceway (aka "little Talledega"), which is kind of abrasive. Street miles on these tires is less than 1000, basically drove from Atlanta to B'ham and back, stopping to do TGPR on the way back.
Tread depths are now ~5/32 front, 3/32 LR, 2/32 RR (tires are at 8/32 new)
Did I hoon it up a bit? Yes. Did I expect to have some tire left? YES! Oh well...

I thought the RE71R were going to make a great trackable street tire, but they just aren't up to it on my car. If I'd known I would have just gotten NT01s. I'm going to run new NT01 rears with the RE71R fronts at Mosport next month. We'll see how that goes...

FWIW newish NT01s hooked up pretty well for me, never any loss of traction in 2nd gear on the street, and decent grip for acceleration at the track. After a couple of track events, though, rear grip falls off a lot in track use. Seemed to still be OK on the street, though.

Monsterbox

iTrader: (6)

Would have loved to use the RC-1 again, but the wheels are much to wide for 275, as this would end up as a stretched sidewall.

The 305/35 is a massive sidewall height, which would probably translate to some good lateral footprint on squat! We'll see how the NT-01 does this go around. But I do wish Maxxis would release some larger sizes!

Monsterbox

iTrader: (6)

The good thing about those tires; Even though they would spin when cold, the car would always track PERFECTLY straight!

Regular street tires, like the Khumo Ecsta (dog sh*t btw) would step out like SOB!

Marf

No love for the AD08/AD08R?

I had AD08 on my Japanese import Revision 3 MR2 Turbo running around 300hp. 16" 205/50 and 225/45. Had used a fair number of tyres on the car until that point and was pretty blown away. I've used semi slicks (A048R and 32R) on previous cars too.

They had immense grip in the dry, even cold and very very good in the wet. The spec sheet boasted about their performance down to -10C(14F) and this was borne out as they were the only tyre I used having covered 60k with that car that allowed it to move meaningfully on snow.

Planning to fit AD08R on the RX7 soon, replacing the stock potenzas.

I did not use them on track though. Will do with with the RX.

Valkyrie

They're by far the best street tire...but they're $$$$$.

LargeOrangeFont

iTrader: (7)

Tires of 100 treadwear or less should be the only tires ever mounted on your car.

LargeOrangeFont

iTrader: (7)

Must be the warmer temps here. Both reacted how you described the RC-1. The RC-1s are better, but they are also 255 vs 275.

The consistency I gained on track with the RC-1 was enormous though. My normal "quick lap" is about as good as my previous best ever lap.

ZDan

The Michelin Pilot Super Sports I just replaced with RE71R for street tires were the WORST in this regard. New, they were OK/fine. After less than a year, I noticed a LOT less grip on the street, even in warmish temps. After 18 months, they were utter crap, understeer at normal "street" driving and when the rears lost grip they lost ALL lateral grip. Even in a straight line, if/when the rears broke loose the car instantly went sideways, and would NOT recover.

I remember when I first experienced Dunlop Z1 Star Spec on my S2000, I couldn't believe how much residual lateral grip there was when they started to spin or slide. Ditto RS-3 V1s I tracked the S2k on at Mosport in the wet. They had a remarkable amount of sliding grip. The MPSS were the opposite of that. Total disaster...

Anyway, I was happy with the RE71R on the street and at the track they were OK but need more DRIVE grip. But the wear rate

ZDan

REalistic treadwear rating for the RE71R would be less than 100. Lateral grip is comparable to NT01. Drive grip isn't, though. And neither is tire life! I got 8 track days and probably 2500 miles of street driving out of my last set of NT01s, though the rears were really kinda done (no grip) after 4 track days. REALLY done on track days 7 and 8! What a handful...

ptrhahn

iTrader: (9)

My feeling is, even with "street" tires, none of them are going to be very good after a year or two regardless of treadwear. Especially if you live where it's cold, and they sit in cold temps in the garage, etc., heat cycling, aggressive alignments and/or shock tuning, etc.

Marf

Toyo put out warnings about storing their 888 and R1R in cold temperatures, advising not to leave the tyre on a car that might be stored outside over the winter.

The rubber would degrade and crack easily in sub zero temps.

BLUE TII

iTrader: (9)

Yeah, the extreme performance street tires come with that warning sticker too now.

LargeOrangeFont

iTrader: (7)

I'd argue a Extreme Summer tire is still not equal to a DOT R classified tire, especially after repeated heat cycles.

A lot of the new Extreme Summer tires are about as good as NT01s for the first heat cycle or two, but then seem to fall off and wear quicker.

BLUE TII

iTrader: (9)

Yeah, the actual racing wear life of the RE71R is terrible compared to even 100utqg DOT-Rs.

I have no idea how they are daily driving. The racers very quickly stopped daily-ing them as they found they heat cycle out quickly. You know UNLIKE the streetable DOT-Rs.

Watching them at autox they drive just like DOT-Rs, providing maximum grip at a pretty high slip angle. The car looks like its on the old 2nd generation of streetable DOT-Rs (V700, RA1, R888, NT01, etc).

and while they are doing that they shed rubber to the ground like CRAZY.

LargeOrangeFont

I'd argue a Extreme Summer tire is still not equal to a DOT R classified tire, especially after repeated heat cycles.

Well, I guess it depends on what DOT-Rs we are comparing the RE71R to.

I am sure they are better than the early 1st gen DOT-Rs like A008Rs and A032Rs. Probably approaching being as good as the 2nd gen DOT-Rs like V700 and RA1s.

Interestingly, one of the tuning houses in Japan has snuck the old V700 into the street tire "Touge Challenge" competitions. They might have a slight edge over the AD08Rs and RE71Rs - hard to say.

The V700 were the softest, most fragile 2nd gen DOT-R produced (good for the small light cars the tuning house is using them on).

Most people complained of V700 chunking and de-laminating on the track if they used them on cars over 2,000lbs (even the big Viper fitment sizes).

Brilliant7-LFC

iTrader: (7)

That's a really interesting point. I've heard a couple people in this thread echo that same sentiment. It's odd that the Extreme Summer tire, like the RE-71R is advertised as a better tire for the street, largely because of the better treadwear. But, if you drive the tire hard, it may heat cycle out quicker than a comparable R-Compound tire, like the R888, or maybe the Advans.

I don't think I'll do much more than a couple auto-x per year and maybe a little bit of drag racing here and there. Generally speaking, will the R tires give the user more heat cycles?

Nick

ArmenMAxx

iTrader: (21)

Ill put it this way,
If it wasnt for Time Attack Class regulations and the limited tires sizes, I would be driving on NT01s street and track. I would bet NT01s are still slightly gripper than RE71R's given my past experience with R888's. For me, R888s cycled out faster than any other tire i've used.

I personally did not see the crazy physical wear on my re71r's after a super hot track day. Maybe ill post up pics when I get a chance. I did feel them get quite greasy and they also dont make much noise once you pass the limit. My Zii's were screamers in comparison.

BLUE TII

iTrader: (9)

I found heat cycling really depends on how hot you get the tires and for how long.

I just do autox, kart track and hillclimb so they are shallower heat cycles than on the track and tires last longer at their peak grip state and have a slower drop off into being heat cycled out.

Tires that feel hard and waxy when cold and sticky like chewed bubblegum when hot (chemical grip tires) heat cycle out way easier than ones that mostly use a soft rubber cold or hot that never gets sticky gummy (mechanical grip tires).


----
example-
I used Hankook Z221 (chemical grip) in 295mm wide on my 2,600lb FD and they lasted a full season plus the next years pre-season with a slow even drop off in performance.

After a kart track "enduro" and the hillclimb where it was 100 degrees the tires did develop a plastic like hard coating from being at their super sticky state for a while and it took a full weekend of auto-x to scrub them back into working well again- but they did recover.

My friend put Hankook Z221 195mm wide on his 2,200lb Civic and it heated the tires to their super sticky state every single auto-x run and heat cycled out in a couple of events.

On tires like RA1, R888 and NT01 I never heat cycled them out including daily driving on the street. They always got faster, lighter and more responsive the older they got until the underlay rubber or chords started showing.

Track is another story. Even street tires can heat cycle out fast.

LargeOrangeFont

iTrader: (7)

Street driving is not the greatest for ANY of these tires. I will say that I have not driven every tire model, but in my experience the 100 treadwear R comps are generally the most consistent and come back once heated up on the track after being street driven for a bit. The Extreme Summer tires do not seem to have that bounce back in my experience and from others I talk to.

ArmenMaxx makes a good point.. for street Time Attack classes you are stuck picking the best tire out of the 200 (or whatever it is) tire class these days.

Bang for the buck I don't think anything touches an NT01 if you are out having fun on the track or have a street car with a little too much power. NT01s are notably cheaper than R888s.