Fast-forward to 2012, and the Z1 slipped to third in the dry autocross and tied for last in the wet autocross. test track, Texas Track Works The R888 will heat cycle where the R1R won't. I was excited when I first read about them last year, and had to try them out. Want to get 225/45 F & 255/40 R. I drive the car on weekends spirited, 2 auto cross and 2 track days a year. BFGoodrich is only now expanding into 19- and 20-inch rim diameters with 275/35R19 and 305/30R20 sizes.
His baseline times were just north of 33.5 seconds, which is typical for the series. The reports of them wearing fast are blown out of proportion. That made the back-to-back delta to the Falken a full second–exactly what the series organizers were looking for. Once a month, however, the track comes alive with legit wheel-to-wheel racing with the club’s own home-brewed H2R Miata Challenge series. Here are my thoughts: The Direzza is a very good tire, especially if you can get a deal on them as I was able to last year. It all depends on what the end goal is. We’ll present it all here so that you can draw your own conclusions. Size can also be a determining factor: BFGoodrich builds some extra-wide sizes that work well in motorsports–they’re the only brand of the three to offer really wide 15s–while Bridgestone is focused more on popular OE fitments. On the dry course, the Goodyear showed less braking control than we felt it had in the wet. One (1) set of gen one and two (2) sets of DZII SS (all are staggered 235/40x17 & 255/40x17 tires on 7.5" & 9.0" stock wheels for both '99s, and the '01 has 8.0" & 9.5" SSR Comps). On-site tire services at the airport were expertly supplied by Texas Track Works. The Pole Position’s lap time, in a three-way tie for fifth place, trailed that of the Hankook by nearly a full second. Timers were installed, tires were mounted, and laps were turned. Few steering corrections were required and mostly necessitated by loss of grip, not lateral squirminess. Scoring the second-fewest points in dry performance secured its midpack rating. We chose the common 205/50R15 tire size and rounded up the necessary rims. Get the RE71R or the Rivals. The BFGoodrich had the most progressive behavior at the limit, but it spoke a very different language when conveying feedback to the driver. The one (1) set of first gen tires should probably be swapped out soon, more due to age than wear, so I will stick with Dunlop, only the DZIIIs this time. The Bridgestone presents a great blend of wet and dry performance, plus it’s quiet and provides a good ride. BFGoodrich Tires I haven't ever used the Toyo's so I can't comment on them, but the RE-71s are planted on the asphalt. © 2020 Motorsport Marketing. automotive-specialist.com Bracketing the test with the ZII Star Spec again showed that Tom was finding more speed as he became familiar with the car, dropping his average lap time on that tire by a half-second. I look at value per dollar to be competitive at the pointy end, otherwise all that matters is how long will a tire last. Jul 12, 2018 You openly stated TR posts videos and comparison info on their tires. The Toyo’s second-lowest wet-skidpad performance mostly jibed with impressions from our finely tuned hides. A supple ride and quiet operation aren’t enough to pull the P Zero up the finishing order. The Bridgestone’s responsiveness also allows for later inputs, so long as they are the correct ones. The dry grip is comparable between the two, with a slight edge to the Potenza. The wet half had us gushing. All rights reserved. TEST CAR: NA-chassis H2R Miata Challenge Mazda Miata.
We may earn a commission for purchases made through our links. They typically are more expensive than the Dunlop or Bridgestone, but the guys who run them feel they are a better tire. You and I come from very different schools of thought. Common wisdom says that the Bridgestone, which has really stiff sidewalls, is better than the BFG in a pinched situation, and Andy’s results certainly support this theory. The price of a RE71R in a 205/50-15 has gone up 10% in the past 3 years. (817) 926-8863 Like the Dunlop, this tire has wear indicators in the tread (they read “DW”). Both drivers reported a disconnect between what the Dunlop’s carcass signaled and what the compound delivered. Rogers held the answer key, not revealing the tires’ identities until the conclusion of all the testing.
The super 200's that have come out since the creation of SCCA Street class in 2014, and OUSCI have changed the game.
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He found it to be more predictable than the ZIII with less drama near the limit. It was by far the handiest tire on the irrigated autocross and secured a marginal, 0.1-second victory over the Michelin. They have excellent dry and wet traction__wet traction being frequently tested here in SW FL__inspiring confidence under all circumstances. Awesome responses guys, exactly what I was looking for! dunloptires.com Second place in wet-braking and skidpad tests backed up our subjective feeling of high grip on the wet autocross, too.
Turn-in came with good bite, too, though the tires quickly lost a solid purchase on wet tarmac and started chattering. This is the time when tire makers release their latest summer tires–especially the 200-treadwear, extreme-performance summer tires that have become so popular for autocross and track participants. Their Direzza Z1 first came out 10 years ago, and the line has been steadily improving through regular updates every year or two. (877) 788-8899, Bridgestone Americas This also gave back-to-back comparisons against each of the new contenders in our A-B-C-A test rotation. Given that ambient temperatures were in the low 60s all day, we warmed up each set by doing a few high-slip-angle laps in each direction–what some might call hooning. David once again praised the BFGoodrich: “Turn-in is overrated; these tires reward talent.
The steering response was still there, but not the grip. I got 20,000 miles out of them. Geswein insisted on doing the test blind, and we followed suit. Extreme-performance tires go a step further: They offer the best dry-road performance available for the street. The tread surface also became hot enough to burn our hand.
INITIAL IMPRESSIONS: We have typically done our tire testing with wheels that are optimally sized for the tires. (We arrived at that figure by surveying some of the quickest E Street competitors in the nation.) The tires were tagged with arbitrary letters.
On the dry autocross, Geswein found the R-S3 and the Michelin to be similar, which is to say forgiving, capable, and consistent. A rainy day won’t sideline a car on extremes, but as a group they are not designed around comfort requirements such as ride and noise. Hankook RS-3s are crap when cold but then get better with heat. Lapping a dry track didn’t dramatically change our impressions.
But a blind test does not lie.
The upshot is that the Rival S and RE-71R are largely interchangeable for lap times, although the latter did suffer from heat build-up and a subsequent drop-off in grip. LcpsMhqxmFhEoNAqZt1dfZX9ht0KTLeYwbF3CZsrrFbCWZzYzBpQoczYn8dxSmhv, https://grassrootsmotorsports.com/articles/cheap-skates/. The Bridgestone had a similar feel, but wasn’t as sharp. E Street Miata test vehicle, Harris Hill Raceway STS Miata test vehicle, Finally Tested: Kumho’s Latest Extreme-Performance Tire. According to David, the BFGoodrich driver will have to look farther ahead and make even earlier inputs–two abilities that are not always typical of novice and intermediate drivers. Another factor in tire selection is availability.