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Tires-What are you using, what have you used?

Old 01-24-2018, 02:24 PM
  #221  
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My totally subjective, non scientific and entirely inconsistent observations on tires I've tried in my limited experience:

Original BFG Rival - Good wear, easy for my novice *** to drive, grip was good but not amazing. Ran this setup on Konis/FM Springs/FM sway bar, and a close to stock alignment. 205/50

Nitto NT05 - Similar wear to the Rival. Decent grip. Not really extraordinary in any way. Good open lapping and street tire. Same car setup as the Rivals. 205/50

Bridgestone RE71R - Extremely noticeable increase in traction and warmup temp over the last two. I've driven these on a few cars, but never my own - so unfamiliar car/different setup was always at play, but the grip is obvious. Steering felt precise. 205/50 and then in a couple different sizes on BMW M3s

Hankook RS4 - I really like these tires. My car got Xidas and 15x10s and I stepped up to 245/40 after the Nittos, and my driving had improved a lot by the time I put these on, so maybe this isn't a good basis for comparison... General perception was that warmup takes a minute (there's 40mm more tire at each corner, duh) but grip levels were quite good once up to temp. Still a step short of the hero tires in total grip. Steering feel was good, I liked how my car felt through slaloms. Never managed to get them greasy in 20+ minute track sessions, it seemed like once they got up to temp they just stayed consistent for the rest of the session. I'd rock the crap out of these again as a street and lapping day tire. Definitely see why endurance guys like them. 245/40

BFG Rival S 1.5 - These feel the most like an RE71 competitor. Grip comes on quick, peak grip is very high. Drove these on my dad's Miata at MRLS back to back with my car on RS4s. His car is set up kinda like a softer version of mine. Tires were 225/45 on 15x9. Tons and tons of grip, very noticeable after jumping out of my car and into the driver seat of his. They felt more vague than the RS4, but that might just be the softer setup of the car and the fact that I didn't get a chance to play with tire pressures. His alignment is somewhere around the 949 dual duty spec, with around .5-1* neg camber less than my car at all 4 corners. Didn't take lap times, but it felt like I was immediately able to turn as fast or faster laps in his car despite being unfamiliar with it... just felt like I had way more grip than I had gotten used to earlier that day. I'm getting Rivals in 245s for this coming season, and I think I'll like them even better on my car and with some opportunity to dial in the setup.

Basically I just want two sets of 15x10s, one with RS4s and the other with Rival S 1.5s. That's my scientific conclusion.
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Old 03-11-2018, 06:00 PM
  #222  
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Direzza Z2 Star specs- probably my favorite all-round tire. I've been able to run street pressures on track with pretty good success, breakaway is always super predictable and they last a whole session without getting greasy. Works great in the rain, on the street, even in the winter (though not recommended) in a pinch. In my experience they heat cycle well, too

BFG Rival S 1.5 - This wasn't my first choice, and I've only driven on a set that's been worn, but they grip great in the dry. Pretty much un-drivable on a colder damp morning, found them to be very skittish in the rain. They heat up fast and grip well, but not as much steering feel and accuracy as I'd like.

Falken Azenis RT615k - Great tire for the first year or so, it does everything well, but not better than anything else. After the first year they got hard and never gripped the same (although still very usable). Never was able to get the pressures right in these, I think they like to be a little lower than I was comfortable going. Overall good tire, great wear over time because of how hard they eventually get.
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Old 03-11-2018, 06:57 PM
  #223  
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Good info but can you guys include your power levels and if its a road based car, dual purpose car or race car (or setup your signatures). This would help qualify the info provided.

I'll add something...if I haven;'t already.

Toyo R1r - 225 x 45 x 15.
Was HIGHLY recommended by Honda Civic racers in my Classic Japanese series and the Honda Cup that the R1r was an amazing wet tyre. I rushed out and bought a set purely as wets (and the occasional road legal tyre for Warrant of Fitness tests).

First time I used them I was shocked how average (slippery under braking and turn in). in damp conditions they were feeling very much like a nicely treaded road tyre more than anything, certainly not like the near wet the Honda guys had been describing.

Discussed it with the Honda guys and they were a bit disbelieving. Happened a few more times in damp conditions (although we did do okay, with poles and race wins etc). It was only when another competitor was reading my tyre size and details off the tyre (he was considering them) that we realised the Honda guys use a 205 that comes in a soft whereas the 225 only comes in a Medium (In NZ anyway). I think a soft would be an amazing tyre for wet if you can get it in your size. Though as below, if the price and availability is there, I would probably opt for the Hoosier. Hoosiers here are nearly double the price.

Weirdly, in true wet conditions (often torrential), though they do give way pretty easy still (but VERY predictably)... we have often qualified 2 - 5 seconds faster than anyone else and had very good race results....so I am a bit confused at this point.

To be fair our car is the quickest in the class at the moment and I really like driving in the wet so maybe the tyres are average and the package is just covering the tyres, yet to decide if its one factor or a combination of all. Anyway, the purchase of Hoosier Dot rated wets has been put on hold because despite the not awesome turn in and braking, we are still getting great results on them and its hard to justify the cost with the results.

Last edited by mx5-kiwi; 03-11-2018 at 08:11 PM.
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Old 03-12-2018, 12:00 AM
  #224  
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So there is something with the R1R in different tire sizes. Apparently the 195 is the only one that has the magic compound all the way down to the cords. The larger sizes all use either a stacked layer of compounds, or possibly different compounds altogether.

If you have 15x8's available, it would be interesting for you to stretch the 195's onto them and see how they perform. I have seen pictures of cars on 195's in dripping wet conditions picking up both inside tires.
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Old 03-12-2018, 08:07 PM
  #225  
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Regarding running in the wet, Re71r in 205 on a 15x8 rim are insanely good. Tried them in both damp and pouring rain and was very impressed with the amount of grip available.
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