RE-71R experiment?

PharmDZ · 03-31-2015, 12:41 AM

On the stock sport rims I'd run 275/35r19 square.

AK370Z · 04-02-2015, 11:39 AM

Quote:

Originally Posted by stuy486

There's no talk of wear in that test, but I don't think you're test is going to answer that question either. There's a lot of factors that go into it, I think it's a pretty car-dependent issue. On our STU 350 we're not seeing wear that's crazy. We've got ~500 highway miles, 3 TnT runs, 12 Tour runs, and 24 ProSolo runs on them and they're looking fine so far, we're confident they'll make it through the next Tour and ProSolo events just fine. Are they wearing faster than a Hankook would? Probably, but it's not as bad as people are making it out to be.

Quote:

Originally Posted by j-rho

Got about 400 street miles and 14 Prosolo runs on mine, they look good. That's with a 3200lb. 370z on skinny little 245-18's all around.

My expectation for street tire wear - and what I used to get on my STS 240sx back in 2006 - was 10 ~60 second runs (or ~10 minutes on the clock) per 1/32" of tire. Will have to measure depth on these to see how they're doing, but so far they appear to be in that ballpark.

whoa are you guys on RE-71R too? or talking about RS3 v2? haha if you guys are RE-71R, we need to create a Potenza club! haha ..

My first event on them (RE-71R) this Sat. They are at 0 miles right now. Just curious, what tire pressure did you guys end up with? I was thinking 38F/35R?

cjwsrt6 · 04-02-2015, 12:13 PM

Quote:

Originally Posted by AK370Z

whoa are you guys on RE-71R too? or talking about RS3 v2? haha if you guys are RE-71R, we need to create a Potenza club! haha ..

My first event on them (RE-71R) this Sat. They are at 0 miles right now. Just curious, what tire pressure did you guys end up with? I was thinking 38F/35R?

I ran these psi settings on my 285/35 rivals and have already torn off chunks of tread off the outside of the fronts, I wouldnt recommend these tires to a stock 370z with the little camber we have. going to try the new kumho when it comes out if the re-71r wears too fast

FPenvy · 04-02-2015, 12:29 PM

Quote:

Originally Posted by cjwsrt6

I ran these psi settings on my 285/35 rivals and have already torn off chunks of tread off the outside of the fronts, I wouldnt recommend these tires to a stock 370z with the little camber we have. going to try the new kumho when it comes out if the re-71r wears too fast

I was just looking into these since they seem to offer the sizes I want 265/305 19

if you know Japanese it may help......

ã‚¯ãƒ*ãƒ›ã‚¿ã‚¤ãƒ¤ã‚¸ãƒ£ãƒ‘ãƒ³æ*ªå¼ä¼šç¤¾ - ã‚¿ã‚¤ãƒ¤ãƒ©ã‚¤ãƒ³ãƒŠãƒƒãƒ— - ecsta V700

the sizes it shows are:

225/40/18
245/40/18

235/35/19
245/35/19
265/35/19
305/30/19

also in 17, 16, and 15 as well.

j-rho · 04-02-2015, 01:19 PM

Quote:

Originally Posted by AK370Z

whoa are you guys on RE-71R too? or talking about RS3 v2? haha if you guys are RE-71R, we need to create a Potenza club! haha ..

My first event on them (RE-71R) this Sat. They are at 0 miles right now. Just curious, what tire pressure did you guys end up with? I was thinking 38F/35R?

Both on Bridgestone RE-71R.

Pressures depend a bit on the rest of the setup. A stock no-camber car with a 275 stuffed on a 9, will need a lot more pressure than my STR car with -4 degrees and a 245 on a 9.

I've heard some advise to not go below 35psi with the Bridgestones. I ended up with low 30's front and high 20's rear but again, everyone (and every surface) is different - gotta experiment for your sitution to find what's best.

38/35 seems like a safe starting point.

To me, the Bridgestones are head-and-shoulders above everything that was already out - R1R, RS3v2, Z2*spec, etc. However there's still the BFG Rival-S and Kumho 720 to learn about - the former has started shipping and the latter is supposed to this month.

stuy486 · 04-02-2015, 04:01 PM

Quote:

Originally Posted by j-rho

Both on Bridgestone RE-71R.

Pressures depend a bit on the rest of the setup. A stock no-camber car with a 275 stuffed on a 9, will need a lot more pressure than my STR car with -4 degrees and a 245 on a 9.

I've heard some advise to not go below 35psi with the Bridgestones. I ended up with low 30's front and high 20's rear but again, everyone (and every surface) is different - gotta experiment for your sitution to find what's best.

38/35 seems like a safe starting point.

To me, the Bridgestones are head-and-shoulders above everything that was already out - R1R, RS3v2, Z2*spec, etc. However there's still the BFG Rival-S and Kumho 720 to learn about - the former has started shipping and the latter is supposed to this month.

What j-rho said about pressures being car/setup specific.

On the 350 STU car we have 275s mounted on 11" wheels with -4° camber, so obviously a different situation compared to the same tire mounted on a 9" wheel with -.7° camber. We were running 30 PSI and weren't even getting close to the arrows/triangles on the sidewall.

AK370Z · 04-02-2015, 09:40 PM

Thanks guys. Good to know.

Drove around on RE-71R a little bit tonight. It feels less responsive vs. RE-11. Even I was on 285 sq with RE-11, turn in were crisp. I put like 39F and 37R. I will have to play around I guess at venue. I am guessing the sidewall is def softer than RE-11 walls. But grip feels much more. But again, it's just butt dyno. I won't know until I do a few events. I plan on chalking the side and using infrared temp gun to check across tire. I will know more next couple events.

FPenvy · 04-02-2015, 12:37 PM

blog post on the kumho as well for any interested. just copy paste into Google translate. all in Korean.

ê¸ˆí˜¸íƒ€ì´ì–´ ë¸”ë¡œê·¸ Dr_tire

Z1NONLY · 05-05-2015, 03:41 PM

How is the wear?

nismosis · 05-06-2015, 07:05 PM

Quote:

Originally Posted by Z1NONLY

How is the wear?

So far good. We'll see what Wilmington does to them in a month or two.

gomer_110 · 05-06-2015, 07:32 PM

Quote:

Originally Posted by nismosis

So far good. We'll see what Wilmington does to them in a month or two.

Which Wilmington event are you referring to? I'll be at both pro's and the tour.

nismosis · 05-08-2015, 01:53 PM

Quote:

Originally Posted by gomer_110

Which Wilmington event are you referring to? I'll be at both pro's and the tour.

The Wilmington Spring Pro is capped. The two Toledo's line up with family commitments, so I'm looking at the Wilmington Summer Pro and Match.

j-rho · 05-08-2015, 02:04 PM

Relevant podcast on the latest tires: Podcast episode 47: 2015 GRM Tire Test| Grassroots Motorsports | forum |

derraj06 · 06-05-2015, 12:21 AM

I have a bit of info on the wear of the tire, I'm on these for a daily tire as I frequent the dragon. They are wearing much faster than the RE11 for me but I typically run 33/30 cold pressures. May try bumping them up a bit and seeing how they react.

Robert Yuras · 06-11-2015, 02:57 PM

This is the first tire I've ever owned that sounded like Velcro peeling off the road everywhere I drive. That doesn't mean it's that sticky, it just makes a weird noise.

04-02-2015, 09:40 PM	#7 (permalink)
AK370Z Administrator Join Date: Sep 2008 Location: NJ Posts: 9,930 Drives: 09 370Z MB Sports M6 Rep Power: 10	Thanks guys. Good to know. Drove around on RE-71R a little bit tonight. It feels less responsive vs. RE-11. Even I was on 285 sq with RE-11, turn in were crisp. I put like 39F and 37R. I will have to play around I guess at venue. I am guessing the sidewall is def softer than RE-11 walls. But grip feels much more. But again, it's just butt dyno. I won't know until I do a few events. I plan on chalking the side and using infrared temp gun to check across tire. I will know more next couple events. __________________ The370Z Signature Pictures ll Want to rock our forum decals on your car? Then click here! ll How to Embed YouTube Videos In a Post STOP! (Hammertime) ll Become a Premium Member Click HERE ll F.A.Q. Are You a Nissan Dealer? Click Here to Become A "Supporting Dealer" and Start Listing Your 370Zs In Our Inventory Section My Monterey Blue Z ll My Exhaust --> My Intake --> G3 Nissan's Official Response Regarding Oil Temp Issue: CLICK HERE Need a Set of Cheap Winter wheels /Tires? Then Visit The Banner Link Below and Place Your Order. You'll Help Keep The370Z Alive.

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03-31-2015, 12:41 AM	#1 (permalink)
PharmDZ Track Member Join Date: Jul 2012 Location: New Jersey Posts: 997 Drives: 11 Nissan 370Z BS M6 Rep Power: 14	On the stock sport rims I'd run 275/35r19 square.

05-05-2015, 03:41 PM	#9 (permalink)
Z1NONLY Enthusiast Member Join Date: May 2010 Location: SW Florida Posts: 355 Drives: 16 FR-S Rep Power: 40	How is the wear?

05-08-2015, 02:04 PM	#13 (permalink)
j-rho Base Member Join Date: Jul 2014 Location: San Diego Posts: 154 Drives: 1967 Camaro Z28 Rep Power: 11	Relevant podcast on the latest tires: Podcast episode 47: 2015 GRM Tire Test\| Grassroots Motorsports \| forum \|

06-05-2015, 12:21 AM	#14 (permalink)
derraj06 Enthusiast Member Join Date: Jun 2013 Location: Huntsville, AL Posts: 406 Drives: MB 370z Rep Power: 12	I have a bit of info on the wear of the tire, I'm on these for a daily tire as I frequent the dragon. They are wearing much faster than the RE11 for me but I typically run 33/30 cold pressures. May try bumping them up a bit and seeing how they react.

06-11-2015, 02:57 PM	#15 (permalink)
Robert Yuras Base Member Join Date: Aug 2014 Location: Texas Posts: 99 Drives: 2013 Nismo 370Z Rep Power: 11	This is the first tire I've ever owned that sounded like Velcro peeling off the road everywhere I drive. That doesn't mean it's that sticky, it just makes a weird noise.