Dunlop zii Star Spec... who's trying them? - Page 3 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

AyJay · 01-29-2015, 10:50 AM

Speculation on the RS3 v2 has been they changed the compound to warm up quicker for autoX guys ... maybe at the expense of being quicker to overheat for the time attack guys.

Speculation for the ZII Star Spec is it will hold heat better but maybe lose it's cold surface advantage over the RS3.

Ultimately these tires may end up being pretty similar to each other instead of having very different characteristics from their previous generations. Price alone would dictate I'd probably still choose the RS3 v2 but Hankook better get their shyt together as far as production capacity.

ja1217 · 01-29-2015, 03:33 PM

Quote:

Originally Posted by AyJay

Speculation on the RS3 v2 has been they changed the compound to warm up quicker for autoX guys ... maybe at the expense of being quicker to overheat for the time attack guys.

Speculation for the ZII Star Spec is it will hold heat better but maybe lose it's cold surface advantage over the RS3.

Ultimately these tires may end up being pretty similar to each other instead of having very different characteristics from their previous generations. Price alone would dictate I'd probably still choose the RS3 v2 but Hankook better get their shyt together as far as production capacity.

TireRack recently tested these 2 tires:

[ame="https://www.youtube.com/watch?v=Cnfw7t3Fgzg"]Tire Rack - How Well Do Extreme Performance Tires Handle the Extreme? - YouTube[/ame]

Bottom Line for AutoX: Z2 SS is the fastest tire in the dry, RS3v2 was significantly faster (~1 second on a 30 second course) in warm (80+F), wet conditions than the Z2 but in cold (50F) wet conditions was about .5s slower than the Z2 SS who's time wasn't really effected by the temperature change.

AustinTX · 01-29-2015, 03:36 PM

Stock car related commentary:
I think we will find that the RS3 is better for the BRZ and the ZII* is better for the FRS. The Z2 seems to create a general understeer. Combine that with a car that generally understeers, and it'll be slower (like the sportscar tire test result). Combine it with a car that generally oversteers, and bingo

(like the tire rack test result)

bimmer635csi · 01-29-2015, 04:12 PM

Quote:

Originally Posted by AustinTX

Stock car related commentary:
I think we will find that the RS3 is better for the BRZ and the ZII* is better for the FRS. The Z2 seems to create a general understeer. Combine that with a car that generally understeers, and it'll be slower (like the sportscar tire test result). Combine it with a car that generally oversteers, and bingo

(like the tire rack test result)

Great. We put ZII SS on our ChumpCar (1984 Corolla AE82, which has NO swaybars). I shall prepare for the push of a lifetime.

AustinTX · 01-29-2015, 05:51 PM

I've tried the Z2's on my STU STI and on my BRZ - they both had really annoying understeer. The STI had great balance on Z1*, but was still slightly faster on the Z2 even with the push. Those tires really got me started on my way to getting rid of my STI. If only Dunlop would combine the Z1 tread pattern with the Z2* rubber compound

brn12345 · 02-08-2015, 03:20 AM

I have the Dunlop Direzza II SS on my BRZ now and they are much much better than the Rivals I had before. I autox and track my car and the grip is great. We also ran the Direzza II SS on our road race civics and they are much faster than the Kumho, Advan, BFG. They also are more consistent and don't fall off a cliff towards the end of the race. In auto x they hook right from the get go as well though tire pressure has to be higher. I run around 25psi on road track and 30psi on auto x.

xDanger_208x · 02-08-2015, 10:40 AM

And now to make things more difficult, Toyo is changing the R1R to a 200 tw.
Decisions... decisions.

01-29-2015, 03:36 PM	#31
AustinTX Pawn in game of life Join Date: Nov 2013 Drives: 19 STX BRZzz Location: ATX Posts: 262 Thanks: 33 Thanked 65 Times in 42 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	Stock car related commentary: I think we will find that the RS3 is better for the BRZ and the ZII* is better for the FRS. The Z2 seems to create a general understeer. Combine that with a car that generally understeers, and it'll be slower (like the sportscar tire test result). Combine it with a car that generally oversteers, and bingo (like the tire rack test result) __________________ Autocross nut

01-29-2015, 05:51 PM	#33
AustinTX Pawn in game of life Join Date: Nov 2013 Drives: 19 STX BRZzz Location: ATX Posts: 262 Thanks: 33 Thanked 65 Times in 42 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	I've tried the Z2's on my STU STI and on my BRZ - they both had really annoying understeer. The STI had great balance on Z1, but was still slightly faster on the Z2 even with the push. Those tires really got me started on my way to getting rid of my STI. If only Dunlop would combine the Z1 tread pattern with the Z2 rubber compound __________________ Autocross nut

02-08-2015, 03:20 AM	#34
brn12345 Senior Member Join Date: Oct 2012 Drives: BRZ Location: Bahrain Posts: 254 Thanks: 101 Thanked 137 Times in 63 Posts Mentioned: 6 Post(s) Tagged: 0 Thread(s)	I have the Dunlop Direzza II SS on my BRZ now and they are much much better than the Rivals I had before. I autox and track my car and the grip is great. We also ran the Direzza II SS on our road race civics and they are much faster than the Kumho, Advan, BFG. They also are more consistent and don't fall off a cliff towards the end of the race. In auto x they hook right from the get go as well though tire pressure has to be higher. I run around 25psi on road track and 30psi on auto x. __________________ 2013 Lightning Red - 6MT Perrin Inlet Hose ~ TRD Panel Air Filter ~ OEM Modified Snorkel ~ Revolution 4-2-1 EL Header ~ HKS Resonated Front Pipe ~ BRZedit self tune ~ KW Clubsport Coilovers ~ AP Racing Big Brake 4 Piston ~ Whiteline Front Endlinks ~ Perrin Rear Endlinks ~ WedsSport TC105N 17x8 42+ ~Dunlop Direzza II Star Spec 225/45/17 ~ STI Trunk Lid Spoiler

02-08-2015, 10:40 AM	#35
xDanger_208x Senior Member Join Date: Oct 2013 Drives: Posts: 483 Thanks: 200 Thanked 129 Times in 77 Posts Mentioned: 4 Post(s) Tagged: 0 Thread(s)	And now to make things more difficult, Toyo is changing the R1R to a 200 tw. Decisions... decisions. __________________ My STX build thread http://www.ft86club.com/forums/showthread.php?t=55616

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Dunlop Direzza ZII Star Spec	xwd	Wheels \| Tires \| Spacers \| Hub -- Sponsored by The Tire Rack	18	05-20-2015 01:30 AM
JRP- New Wheels from Enkei w/Dunlop Star Specs ready to roll!!	Stav	Canada Classifieds	6	05-02-2013 08:31 PM
Dunlop Star Spec anyone do yet ?	rikdrt1	Wheels \| Tires \| Spacers \| Hub -- Sponsored by The Tire Rack	34	03-15-2013 08:29 AM
New Dunlop Z2 Star Spec	Hanakuso	Wheels \| Tires \| Spacers \| Hub -- Sponsored by The Tire Rack	113	02-15-2013 01:57 PM
Yokohama ADVAN Neova AD08 vs. DUNLOP DIREZZA Star Spec z1	gmookher	Wheels \| Tires \| Spacers \| Hub -- Sponsored by The Tire Rack	3	09-13-2012 11:18 AM

01-29-2015, 10:50 AM	#29
AyJay Senior Member Join Date: Apr 2013 Drives: 22 GR86, 13 FR-S, AP2 S2000 Location: Sac, NorCal Posts: 407 Thanks: 208 Thanked 220 Times in 118 Posts Mentioned: 14 Post(s) Tagged: 0 Thread(s)	Speculation on the RS3 v2 has been they changed the compound to warm up quicker for autoX guys ... maybe at the expense of being quicker to overheat for the time attack guys. Speculation for the ZII Star Spec is it will hold heat better but maybe lose it's cold surface advantage over the RS3. Ultimately these tires may end up being pretty similar to each other instead of having very different characteristics from their previous generations. Price alone would dictate I'd probably still choose the RS3 v2 but Hankook better get their shyt together as far as production capacity.

User Name		Remember Me?
Password