Bullwings

ORDERED! And in Sunday. Will give impressions after BW!
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Awesome! I'll have to get a ride along with you at BW if you don't mind. I missed getting a ride along at chuckwalla. That was a crazy day and tiring for me. I ended up running 6 full sessions - I decided to skip the bonus session (was too tired after that).

Sebring AP1

ORDERED! And in Sunday. Will give impressions after BW!
[/quote]

Awesome! I'll have to get a ride along with you at BW if you don't mind. I missed getting a ride along at chuckwalla. That was a crazy day and tiring for me. I ended up running 6 full sessions - I decided to skip the bonus session (was too tired after that).
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Deal, this time I won't have shitty tires. Unless the Re-11a suck.

craftyvtec

Here is my report for 2 track days.
2002 AP1 Stock suspension
RPF1 17X9 +45
255/40/17 Square
Front Psi 35.5
Rear Psi 34.0

Lime Rock Park DRY
ran three 30 minute sessions. first 2 were good but not great. I let them cool down and heat cycle. the third session the tires really came to life. They provided lots of grip and stayed consistent through the session, overall very good grip, almost as good as my R888's but alot less noisy.

New Jersey Motorsports Park Dumping Rain all day.
ran three 30 minute sessions. in the wet they are good but not great. I was able to get some seat time on a set of Michelin Super Sports and they set the bar very high for wet grip. The ZII did not have the grip the Super Sports provided. I would say about 75% as good as the SS's. Overall they provide some feedback in the wet but not much.

Dry track I rate them 8.5/10
Wet track I rate them 7/10

CKit

My report: 36 degrees and dry-ish. '11WRX (D-stock trim). PDX with slaloms and sweepers. No timing. Good out of the box with a scuff in. Very, very good after a few laps / runs. Feel very much like a 40 run Hoosier A6. Stiff sidewall, good turn in. Precise. Not very talky. Peaky grip, but I like them. If you're a neat and consistent driver, very rewarding. Driving AWD and turbo, there's a lot of forgiveness so the peakiness doesn't matter so much.

nofearofdanger

I'll be getting these one or two days before a big track day next week, is there a quick way to scrub them in without shaving?

CKit

They really don't take much scrubbing. Three medium laps with some good braking zones should do it.

nofearofdanger

Ah ok - I was a little worried after reading TR's '500 mile compulsory break in for every tire' page.

CKit

Really push the aggression on the braking to scrub most of the tread in. The shoulders will come in on some of the first laps once most of the tread is scrubbed in. IMHO, if there's not enough lateral grip to get to the shoulders it's hard to scrub them in. Wearing off the mold release in a straight line is the safest way to do most of it quickly, I think. YMMV.

spaded.racer

First event on the ZII's yesterday(255/40/17 square). My co-driver and I are impressed.

The event was plagued with mechanical issues from vehicles breaking down on course so we didn't get many runs on 'warm' tires.
First runs were in high 40-50 degrees, didn't take long heat up. Grip was great from the start.
Afternoon runs were in the 60's temperature wise and sunny. Was able to drop about a second off ours times from the morning.

Still playing with pressures a bit but took no time at all to get dialed in.
First event of the year so both of us had some dusting off to do. The car was really no fuss all day long, didn't understeer(slightly in till tires were warmed), didn't oversteer... point it where you want to go and hammer down basically.

One of our competitors was running the Rivals in 255 square and he seemed to have issues getting the car to do what he wanted it to do all day and still wasn't sure where to put tire pressures by the end of the day. I'm happy with my decision to run the Dunlops this season.

praisedprod

I recently changed my alignment after a corner balance and I'm noticing a lot more hydroplaning and instability in the rear at 60 mph+
in standing water. The camber before in the rear was 2.2 1/8th tow and I now have 2.8 1/8 tow. I think the gain in the dry is negligible compared to loss in the wet.
Before the alignment, in standing water i could full throttle without any instability.
Im thinking i might try somewhere in the middle of those two settings .