Here is a link to the 350Z forum where they have a video of 4 Miata's running each of the four tires.

Toyo R1R
Yokohama Neova
Bridgestone Potenza RE11
Dunlop Direzza Z1 star spec

http://my350z.com/forum/wheels-and-t...ml#post7127590

For those that don't want to hop over and view the video here is the race analysis.

1) All laps
..........................Average............Stand ard Deviation
Bridgestone............71.363...................1. 624
Dunlop...................71.716................... 2.250
Yoko......................71.447.................. 1.899
Toyo.....................72.841................... 1.736

2) Dropping the starting lap (slowest lap)
...........................Average...........Stand ard Deviation..Total time for these 14 laps
Bridgestone............70.950....................0 .295...... .................993.297
Dunlop...................71.313................... 1.685..... ...................998.388
Yoko.....................70.959................... .0.196.... ...................993.429
Toyo.....................72.427................... .0.698.... ..................1013.984

3) Dropping the starting (slowest) and fastest laps
...........................Average............Stan dard Deviation....Total time for these 13 laps
Bridgestone............70.974....................0 .293...... .................922.657
Dunlop...................71.372................... .1.739.... ...................927.838
Yoko.....................70.981................... .0.183.... ...................922.772
Toyo.....................72.514................... .0.640.... ...................942.689

 

Looks like the Bridgestone's are the best, putting up the fastest lap times with the lowest SD. What's the lifespan on these tyres?

 

Unfortunately that is something I don't know. I just ordered a set though and will definately let everyone know my experience with them.

 

IM using Goodyear F1's and they are by far much better than pirelli IMO in all aspects.

 

Actually the Yoko's while finishing third in the race actually have very similar numbers to the RE-11's. I see how I like my 11's and if not happy may swith over to the Yoko's. I always had them on my EVO and they were great tires.

 

+1

 

How is the Bridgestone Potenza RE11 supposed to be positioned compared to the Bridgestone Potenza RE050A – more “high end performance tire” or positioned below the RE050A?

 

It was my understanding the 11's were replacing the 050A's and supposidly better. Time will tell on that though.

 

My pirelli IMO have performed quite well and i saw no point in removing them or exchanging them for others.

 

The RE11s are definitely positioned above the RE050A Pole Positions. There are several versions of the RE050A, and the PPs are the high end version comparable to the PS2s and PZeros. I am currently running the RE050A PPs, and will be trying the RE11s the next time around especially since they have more sizes available for 19" wheels.

The RE11s I would say are positioned between the high performance street tires like the PS2s, Pzeros, Advan Sports, and the R-compound tires like the Pilot Sport Cups and Pzero Corsas. They are becoming a very popular tire for auto-x, and I think from what I've been reading do not require as much heat to become sticky like r-compounds, making them the ideal track/street tire. Needless to say, I can't wait to try them.

 

Ah, hate to point this out but ANY r-type tire will require less heat to become stickyer, is this a word, as compared to ANY street tire. Sorry but its just a fact of tire life my friend. They are popular in the street tire catagory for autocross, but they are NO replacement for a r-tire.

Obviously an autocross r-type tire would require the least amount of heat, but they also wear out the fastest, by a HUGE margin.

See yeah