Thanks!
It also allows our front-drive CRX to better put down power out of corners. The steering wheel can be unwound sooner, reducing the understeer that usually results from weight moving off the nose of the car. Heres a few examples of unwanted upshifts.
It was similar in handling to the Yokohama Advan Neova AD08 R that we tested in 2015. The obvious answer is to change the rubber compound so that it better grips the ground.
The final paired two veterans of the category; defending series champion Charlie McCulloch who lined up against Adam Cox. If a certain application highlights a deficiency in the model’s design, then only the sizes most commonly used for that application should get the revisions to address it. Lap times improved by 0.8 second. Website Design and Development by Digital Momentum. We chose that tire as our control throughout our test, setting baseline times and bracketing at the end of the day to measure the effects of changes in the weather, track and driver. Plus, running full sessions would teach us about the tire’s consistency over the longer run.
Perhaps the big 245mm VR-1 would stand a better chance on shorter tracks?
Those seem to have better clearance than the OEM calipers. My track tires are that size and I have zero issues with any intervention triggers. | Posted in Digging deeper, the datalogger confirmed the big time differential in sustained sweepers. It also showed that the Rival-S was better at accelerating onto the long straights. These tires also showed so well in NASA Time Trials that for this year the rulemakers gave them the same preparation points value as many R-comps.
As a result, tires are one of the most rules-restricted pieces of the puzzle, and the popular 200-treadwear Extreme Performance market segment continues to evolve at a rapid pace. If I was lapping the car I would certainly change them out. It was during these early days that Bob had a vision to produce his own tires specifically designed for racing. So in 1957 Bob and Joyce began their own business in an old abandoned horse barn in South Bend, Indiana selling tires to local racers... and Hoosier Racing Tire was born. Right now I have way too many stock caliper pads to even entertain a swap. We can’t show you how to build your own tires at home, but we can test what’s available and give you objective data to base your decisions on. First video I zoomed in on the virtual cockpit to show it shifted from M2 to M3 at 45mph/5500rpm despite having shuffle steered with hands nowhere near the paddles. The Plan: This time, we wanted to do a strict comparison of the Maxxis Victra VR-1 against the two standouts of last year’s test: the earlier BFGoodrich g-Force Rival-S and its formidable competitor, the Bridgestone RE-71R. Rival-S: BFGoodrich has clearly made good on its promise to evolve the Rival-S. We would have loved to add a 205mm version of the new Rival-S to the mix, but it was not yet available. By Andy Hollis The rubber won’t last any longer, but you’ll be going faster while it does. Then we could start comparing some tires. I did put a rubber pad under the throttle pedal to stop actuation of the kickdown as that can be very intrusive with gear selection. Racers were forced to choose either outright speed or longevity based on their specific event and price point. The Audi Sport parts for the TTRS are probably much the same. I ran 265/35 18 on the track all last year without issue, 295/35/18 would be closest to the stock 20 inch 255/30/20, but that will require a 10.5 inch wide rim which will be very hard to fit (max recommended by 034 and others are 9.5). VR-1 Rim Width: 9 Vs. 10 Inches: After setting out on 9-inch-wide rims, we learned that the VR-1 was a very responsive tire. That said, it should be noted that the VR-1 comes molded to a 9/32-inch tread depth, which could be a contributing factor to the heat soak when not shaved or worn. The latter has been quite popular in the track day and time trial communities for drivers of Miatas, Hondas and early BMWs. Stay tuned. VR-1 Vs. Old Rival-S: Does the larger 245mm VR-1 have what it takes to beat last year’s 225mm Rival-S, both on their optimal rim widths? Porsche use something similar on GT3s. What new developments will come from the class of 2016? VR-1 on 9-Inch Rims Vs. Old Rival-S: We then compared the same straightaway data for the VR-1 on the 9-inch wheels and found it had no such divergence. The AP calipers cool better than the OEM calipers but they do not stop the car better as their pads have less surface area. Before our more rigorous testing began, we had the opportunity to do a casual comparison between our baseline tire and Maxxis’s newcomer. I have the deflector vanes (oem RS3 parts) that fit the TT lower arms with a bit of trimming and deflect air towards the rotors. When we tested the street tire class of 2015 a year ago, we found a massive leap in performance over earlier products.
While not the quickest in a time trial format, the VR-1 will likely deliver big in longer crapcan races.
How many of the four tire models were used on the same tracks? With 9/32-inch of tread to burn and lap times that appear to be on a par with other enduro street tires, a single set should be able to bring teams to the front over an entire weekend of racing.
Using different belt materials, angles and sidewall inserts can drastically alter a tire’s personality. COTA’s long straights probably helped by giving the tires significant time to cool off between hard cornering. © 2001-2020 Audizine, Audizine.com, and Driverzines.com. No matter what the powerplant, drivetrain layout, brake setup or suspension design, those four rubber contact patches are what translate it all into motion on the track. We’ve logged countless hours here, most of them in the CRX.
949 Racing: 949racing.com, (949) 716-3111, wheels, BFGoodrich Tires: bfgoodrichtires.com, (877) 788-8899, tires, Bridgestone Americas Tire Operations: bridgestonetire.com, (866) 775-6480, tires, Circuit of the Americas: circuitoftheamericas.com, (512) 301-6600, warmup track, Harris Hill Raceway: harrishillroad.com, (512) 667-6250, test track, Maxxis: maxxis.com, (800) 4-MAXXIS, tires.
We’d use the 2015 version in that size instead. Aug 16, 2016 Reading this via Facebook? From Sprint Cars to Open Wheel Modifieds and Micro Sprints, Hoosier Tire is the industry leader in purpose-built dirt track racing tires. The cost is astronomical and they are supposed to last the least of anything comparable. Sub-140TW, the Hoosier A7 is the droid you are looking for.
Making it more responsive, more intuitive and easier to drive can definitely lower lap times. That is a good record of the behavior. Wheel well spats or some nice flares would mitigate the tires’ protrusion, but the increased frontal area is still there regardless. The Setting: Two different events happened to put us at the same track with the same car just two weeks apart and under similar weather conditions. eGvVTzDdrrJ5zNor5SjnxcBdwF5kMAlmRviBkuCcLwV5iHsZBdXIbbqNsCL3s28D. A back-to-back test showed that it was close, but the old Rival-S was still quicker by a few tenths. Personally I use the S mode on track which does a very good job and probably the quickest way around. On both days, we’d use 205/50R15 tires in the rear mounted on 15×8-inch wheels. Andy - I always look forward to your tests.
Hopefully there isn't any huge shake up at the top in the AX portion of the test, I just ordered a replacement set of RE71Rs. Hoosier produces a wide range of oval track asphalt tires to run from the ¼ bullrings to Super Speedways that repeats week after week.
If you wouldn't mind adding the following details: Were the same alignment numbers used for all for tire models? BFGoodrich recently took this route when it tweaked the internal construction of its smaller Rival-S sizes. Last year’s crop of performance street tires seemed to hit the point of diminishing returns in that regard, wearing out some 30-percent faster in exchange for their newfound grip. With the 2016 version, the compound, tread design and belt materials remain the same, but BFGoodrich has modified the way the package is put together. It was during these early days that Bob had a vision to produce his own tires specifically designed for racing.
(different tracks wear out tires at different rates). So in 1957 Bob and Joyce began their own business in an old abandoned horse barn in South Bend, Indiana selling tires to local racers... and Hoosier Racing Tire was born.
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