Thanks for the responses. You need to be a member in order to leave a comment. Keith Haring Cars on Display at Petersen Automotive Museum, Engine Tech | O-Ring Measuring and Material. We promise not to use your email address for anything but exclusive updates from the Power Automedia Network. Though they weren’t heating up quite as quickly as I thought they would, I dropped the pressures to 24 pounds, and they really came alive. After logging more than 1,000 miles on the Proxes R1R tires, we mounted a set of 215/45R17 Proxes R888R rubber to the D’Garage ND MX-5’s Yokohama Advan RZII wheels. I took the car through the city streets during a particularly rainy period a few days after the initial test, when the MX-5 managed to spin the rear wheels in second gear (a very rare thing to happen for any Miata), but the tires mostly behaved as long as I kept my right foot under control. Right away, we could see Shawn’s mile per hour on corner exit was faster on the Toyo Proxes RR tires, indicating he was able to carry more speed into each corner thanks to the adhesion of the tires. The car used for this test was the 2003 Miata in the same configuration used at Summit Point in the earlier test.
They offer incredible grip - all the time. I find it to be a nice tire for both the street and the occasional track day or autocross. What do y’all think about these options? Carrying a 100 AA A UTQG rating, the R888R intends to build heat quickly for maximum adhesion to the road surface. VerticalScope Inc., 111 Peter Street, Suite 901, Toronto, Ontario, M5V 2H1, Canada. The RR has a treadwear rating of 40, while the R888R has a treadwear rating of 100. Nevertheless, its handling characteristics and grip levels overshadowed this by a long shot. I would have gotten 3 days. The soft compound and aggressive tread blocks aided in the car’s responsiveness and lateral grip, though there was a small tendency for the tires to float into corners now and again, as if they were rolling on softer sidewalls.
I have not done back to back testing on the tires you mentioned. I am assuming track use did them in. SEMA 2020: The S-Series Twin-Disc Clutch From Monster Clutch Co. SEMA 2020: Turn One Introduces Type II Steering Pump Upgrade, SEMA 2020: Optima Batteries’ Hi-Performance Expo At COTA, SEMA 2020: Stay Cool With DEI’s Black Floor & Tunnel Shield, Camber: What Is It And How Can It Make You Faster, The Strength Difference Between Cast, Flow Formed and Forged Wheels, Video: Drifty C7 Grand Sport Passes Ferrari 488 Challenge At 140 MPH, Bringing The Show To You: PRI Embarks On Cross-Country Road Tour, Tune Your Late-Model Hot Rod And Save Money To Boot, APEX Flow Formed Wheels For The C5, C6, and C7 Corvette. Following these recommendations, the MX-5 ran with -2 degrees of camber at all four wheels and started the track sessions with 29 to 30 psi of pressure, depending on track conditions. I reset the front toe to the smidge of toe in Chevy recommends. Not only did the tires still maintain their durometer readings in the high 40s and near-new look, but they also allowed me to pull off a best lap time of the day for the car during the final session. I'm not sure how Time Attacks are performed in your area but be aware it takes a good 2 laps to get these tires warm. The car goes back and forth between track and autocross so I think this was a good choice. At TURNology, we have covered all of the information you will find on a sidewall of a tire and what it means in this article HERE. I was in a time trial vs. HPDE, but... that's impressive still. On the RR, we earned a podium finish in a Spec Miata road race at MIR. A 285 NT01 is fantastic on a 10" if that's what you had planned on running. I'm in complete agreement. People are getting stupid fast record times in Miatas using SM6's, and they're relatively cheap! So far, it looks like the tires still have more than a few useful heat cycles left in them. All rights reserved. Both of these treadwear ratings indicate these tires are incredibly soft. It’s not going to happen unless you have some very sticky tires. You say you want to run a sub-two-minute lap around Buttonwillow Raceway? After I burn through my current supply of Star Specs and R888's, my plan is to run RS-3's all the time. I'm replacing my worn 205/45R16 and 235/40/R17 Dunlop Direzza Starspecs with 205/40R16 and 235/40R17 Toyo R1Rs.
Run after run, Shawn began to trust the tires more and drive the car harder, which the tires seemed to appreciate. The wider you go, the more crucial the amount of camber is to get the most out of the tire and not destroy the outer edges. Discussion Starter • #1 • Oct 9, 2010. I'll post a comparison in a month or two. LS1GTO.com is a forum community dedicated to the LS1 Pontiac GTO. When you are trying to improve your car’s performance, the first thing you should be looking at is the tires. The R888Rs, however, provided ample feedback through the car and to the wheel to let me know when they had enough. Shawn was within two-tenths of a second per lap, which says a lot about him as a driver, and about the Toyo RR and its ability to be reliable. #1 Toyo's are sold to Independent regional dealers while Nitto's are targeted at nationwide dealers. As scary as this was, this dodge move was effortless compared to how many other cars may have handled the situation.
Keep in mind- if this was the only alignment you had done on your brand new Zl1-1LE, the alignment will walk considerably after your first time on track.
In the end, they rewarded Shawn with a First-place PAX finish in the CSP class and Third overall in RAW time. However the Supercar 3R's do last the entire session without getting greasy once they're warmed up. Now that the brand’s long-awaited Proxes R888R design has reached the United States, we mounted a set to the MX-5 for a few hundred miles of testing on the street and on the race track. It's easy! I've autocrossed and tracked RE-11.
In terms of performance, a better performing tire usually means it is also has a limited lifespan. I’ll give up a tenth of a second for that any day!”. You'll be substantially slower than people on Cup2's or RE71R's for those two laps. Probably not something you'll want to cruise around on the street with, though. 764 Posts . I am using the R1R as my drive on and to/from the track tire. The RA1 and R888 both use the same rubber compound as the R1R. The new tires were a welcome addition to the Miata and helped Shawn earn a podium finish in Spec Miata. Sorry, i don’t have hands on experience yet but i would still like to chime in.
The RA1 and R888 will wear out much quicker than the R1R.
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I want to see how tracking improves with initial changes before moving to bigger changes. However, they do prefer them to be heat-cycled once and scuffed-in before racing use. All other photos: Shawn Brereton). When I checked the alignment with toe plates and camber gauge at home (after the fronts corded) I saw that the front end had significant toe out! The R888R will have more straight line grip as mentioned earlier. For a better experience, please enable JavaScript in your browser before proceeding. Sure, they're a Hoosier...! Shawn Brereton was our wheelman for this event, and he found the tires very predictable. In road racing and street performance, Toyo holds a massive presence with its Proxes lineup of tires. We will safeguard your e-mail and only send content you request. There is a reason why the spec miata racers protested and stopped using them going back to RA1s. For both tires, Toyo recommends a negative camber setting of 1- to 3-degrees. The harder you push them on track (with the right setup), the better they perform. They indeed have 225/45/15 in stock. I am planning on picking up a set of new tires tomorrow....has anyone ever used the the R1R on the track or autocross? I’m talking summer days in CA as I’m sure they are crap in cold or wet days.
They just give up after about 4 to 5 heat cycles with absolutely no warning. The R888R tires stuck to the ground hard, carrying the car around corners with 1.2 to 1.3 sustained g in the faster areas. Im running 245/40/18 nt555s right now on all 4 corners, and have 18 x 10" wheels for the rear that I'll be using with the new tires. SEMA 2020: The S-Series Twin-Disc Clutch From Monster Clutch, SEMA 2020: Turn One Introduces Type II Steering Pump, SEMA 2020: Optima Batteries’ Hi-Performance Expo At, Strapping Your Race Car Or Hot Rod To A Trailer Just Got, Get The PerTronix Wiring Products You Need In Your, IDIDIT Performance’s New Steering Hubs Offer Easy Wheel, Kirk Myhre: Stellar Helmet Painting For The Budget-Minded, The Spec Miata Master: Multi-Time National Champion — Jim, Road Racing Renaissance: Three Oval-Trackers Choose Lefts AND, We Join Ford v Ferrari Movie Crew, Stunt Drivers At Daytona Rolex, Lingenfelter-Powered Z06 Dominates With Eliminator, Joe McGuigan’s Oversteering Scion FR-S Blends Speed and, Mike Trenkle’s Wide-Body Mustang: A Fox-Body Pushed To, High-Performance Racing Fasteners: How ARP Fasteners Are, Coach’s Corner: Wheel-To-Wheel Racing — When To Make The, Great Racing Documentaries To Binge Watch During, PRI 2019: FIC’s New 1440cc With USCAR Plug/Injector Size, PRI 2019: QA1 Mod Series Mustang Shock And Firmer Valve, PRI 2019: Sway-A-Way Porsche 930 28-Spline Street And Race. Although still noisy, the R888R produces a lower volume whir, especially for a DOT-spec competition tire. They started sticking after the first couple of turns, and I was able to hammer on them after that. As the event continued and heat built up in the R888R, Shawn located more confidence in the tire and found it was doing what he wanted as he tossed the Miata around the cones and used as much grip in the tires as was available.
With the tires hot and functioning at full capacity, the only difficulty in driving the car was finding its limits. I'm not ready to order for another month or so, but I'll save his contact. The only question was, with the slick design of the RR, what would Shawn do should light rain be in the forecast? Toyo Tires’ successor to the Proxes R888, the Proxes R888R, aims to improve grip and responsiveness for the hardcore enthusiasts and racers that require a street-legal, DOT tire. I also will not have to buy camber plates, spacers, studs, etc. “It started cold and wet and ended dry and warm, but the R888Rs kept me from having to switch tires.
Paul is the owner.
Although I didn’t get anywhere close to wearing the R888R rubber down to the cord, they did have to endure through three on-track sessions, and thus three heat cycles. JavaScript is disabled.
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