There was just no feedback - the space in time between full grip and losing it was very short and non-descript. I love the RE-050's because they made lots of noise and sent you lots of signals when they were about to go.

I just figured it made sense, given the price - you get what you pay for!


BUT - a lot of guys love the Azenis- this is just my experience.

 

In that tyre class, what is better? I think there have been enough user and magazine reviews to dictate that the rt615s are strong. It may not signal the driver when it's going to let go but really I think that is something which depends on the driver. Meaning It's something you adjust to.

Honestly r-comps to me grip and go too...it's all relative to how much seat time you've got with the shoes...no?

 

My RA1's have given me plenty of feedback and controlled sliding. That being said, if you like the Azenis: knock yourself out and save some $$$ in the process

 

actually sotck is 215/245 compare to ur 215/255 settings now

it's gonna have more understeer

i recommand to have all 4 36psi COLD in the 1st session

measure all 4 42psi HOT in 2nd session

then depending on how u used the front tires, re-adjust

after re-adjust front, then go higher in the rear if understeer, go lower if oversteer

this is just a general test see if u find it work well for ur whole track day

 

ive got RT615 255/40/17s on the rear of my car right now, and with the rears set at 36psi the handling of the car was extremely screwy. The ride was super harsh and I was all over the place. It wasn't until I dropped the rear to the factory pressure (32psi) that the handling and ride quality was restored and I felt comfortable driving aggressively again.

Ive never driven a car where minute changes in tire pressure affected handling so much. I found that anything over 1-2psi of the recommended tire pressures in the manual severely disrupts the handling of the car.

that is waaaaay off unfortunately. The problems is that not all tires of the same "size" share the same tread width, rendering your simplified math almost useless. Did you totally ignore the fact that the original poster did computations using the ACTUAL tread width of both the RE050s and the RT615s, and the difference in stagger was pretty significant?

 

That was my CYA line.

OP, let us know how you make out if you decide to run this setup

 

I have used the Azenis on my Miata and loved them.

With that said I was running no where near those pressures on the track. That's the pressure I was running for autocross. I was down near 32 on the TRACK.

 

I've heard from several people track side that 615s(or was it the old Azenis') get greasy after a few laps on the track? Has anyone running the tire experienced something of this nature?

 

depending on how agressive u drive, the more agressive u drive, the easier RT615 will give up! and it gives up quicker than most tires, too!

once u feel they r overheat too quick, either take off or back up ur driving style smoother!

 

cool. so it sounds like it's manageable and not detrimental to speed #s. I was slightly concerned about "4 hot laps and they're toast" scenario. tires change the more they're driven and that's just something one has to live with. good to know.