Toyo describes the R888R (commonly referred to as the R … Read honest and unbiased product reviews from our users. Top subscription boxes – right to your door, Toyo Proxes R888R Automotive-Racing Radial Tire - 205/50ZR15 86W, See all details for Toyo Proxes R888R Automotive-Racing Radial Tire - 205/50ZR15 86W, © 1996-2020, Amazon.com, Inc. or its affiliates. Today, Kyle is an experienced EFI calibrator; hot rod builder; and motorsports technician living in the San Jose area. Your IP: 144.76.84.38 In order to do this, I have monetized this site by adding banner ads and affiliate links. Definitely less than ideal conditions for a track event. Our time was bested by an older gentleman behind the wheel of a fully track prepped Evo VIII. Short dry braking distance, but the wors handling speed. Read on for more in-depth insights for both street and track applications…. 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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. Raising the tire pressure for very wet conditions will help to prevent hydroplaning by decreasing tire deflection, rounding out the shape of the tire to create a narrower contact patch, and pulling open the water channels in the tread for improved water evacuation. The driver needs to have total confidence that whatever tire they put between their wheels and the tarmac will be able to handle the abuse seen over multiple hot laps without giving up grip, structural integrity or predictability in performance; otherwise known as precious seconds. The drive back to the DSPORT headquarters from Buttonwillow Raceway is approximately 170 miles, and the R888Rs accompanied me for the entire trip back. The evolution of the three 100 treadwear Toyo Proxes DOT-approved competition tires: the classic RA1 (left), R888 (center) and the new R888R (right). In this lineup, you’ll find full-slick racing tires, DOT competition tires, and extreme performance all-season and summer tires. Our time attack Evolution X GSR project is in a bit of a transition at the moment. Regardless, I love these tires on the track, and think they’re very well suited for the Audi crowd with their higher UTQC rating, tread pattern, and ability to withstand abuse. Toyo’s team found that the best suspension settings for the R888R are found with 1 to 3 degrees of negative camber and “as much positive caster as possible.” These requirements make it blatantly obvious that the R888Rs were really designed for the road course and will wear very quickly if used on the street with these settings. Negative camber improves lateral grip by moving the point where the rubber meets the road further towards the inside shoulder of the tire, increasing the outside shoulders contact with the road when exposed to high lateral loads and preventing sidewall rollover. Notice the excessive body roll produced by the mismatched combination of suspension components and power delivery. • There’s no need to kid ourselves, these tires belong on the race track. It’s really neat to have the option to take a corner as fast as you want on a whim, which is something I’d never consider on normal street tires. 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. Its redesigned, asymmetrical tread pattern utilizes large tread blocks on the outside for better cornering and a water evacuation channel to help maintain grip in damp conditions. In turn, this tread rating mixed with approximately 6/32″ tread depth and an aggressive tread design likely wouldn’t fare as well in wet weather, as this tire is meant to shine in dry conditions on the race track. With nearly 40 other drivers participating in the track event hosted by Extreme Speed Track Events, our best lap time of 1:25.517 was fast enough to make us the second fastest time of the day and the recipient of an awesome plaque. 1:25.512…. Keith Haring Cars on Display at Petersen Automotive Museum, Engine Tech | O-Ring Measuring and Material. But that didn’t stop us from adventuring out onto the track for an early morning wet session. This site is not endorsed by Audi or its parent company, Volkswagen Auto Group. I decided to put them on for a few weeks and find out, and installed tire stickers while I was at it just for fun. Carrying a 100 AA A UTQG rating, the R888R intends to build heat quickly for maximum adhesion to the road surface. After putting the Toyo’s through their paces with a full day of mixed wet, cold and dry racing, it’s safe to say that this will continue to be the tire of choice for our time attack project Evo. 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. We knew our starting tire pressure would be too low, so we raised our cold pressure from 26 psi to 32 psi with a hot target pressure of 36 psi. You can still see all customer reviews for the product. Prior to becoming a freelance writer for the company, Kyle started his automotive performance career with Power Automedia as a shop technician, where he gleaned intimate knowledge of LS platforms and drag racing builds; then later joining the editorial team as the Staff Writer for EngineLabs And Turnology. I’ve even had a few folks behind me notice if anything that I was able to kick the rear out ever so slighty when throttle steering, much different than their expectation of an Audi that understeers like crazy. It's fine if not, tnx. The R888R has an optimal operating temperature between 160 degrees F and 220 degrees F. If you find yourself below the cooler end of this range, the tires will be noticeably less sticky and the compound itself will be too firm. As they would begin to break loose, they let out a gentle howl and made any instances of oversteer gradual enough to provide plenty of time to make corrections. The smaller contact patches and more intricate water channels are able to evacuate more water efficiently, but also reduces the tire’s contact surface area, reducing overall dry grip and increasing the possibility of tread block squirm.
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