I have about 250 miles on the new Sumitomos and some impressions

jyoteen · 03-21-2009, 04:49 PM

Yes, the tires are still quiet. Quieter than the previous Michelins (even when the PS2s were new)

Grip is comparable on the street. Frankly, I don't think i'd ever push to the limit of the tire on the street. That's just asking for trouble without run off room and worse, traffic, if any. I live a stone's throw away from Angeles Crest Highway and I've seen pretty bad accidents up there in the form of spirited driving.

I bought these knowing full well that when I go to the track, i'll be running track tires, so the money you save here can be applied to a better performing tire specific to the application.

Wet performance is tough to gauge (although we did have some rain) because when it rained, the tires were really new so I wasn't going to push it there either. Grip in the wet seems reasonable.

Road feel is a bit muted due to the comfort that this tire seems to provide. Sidewall isn't soooo stiff that it's jarring. Responsiveness seems to be ok. Acceptable to me and I would think that I drive the car pretty hard.

Braking is tough for me to say because I run track pads on the street with the full complement of bus squeal. I've been too lazy to change those out and thus, the pads never get hot enough for me to really see if the tires provide the confidence in going deep.

That is all.

It is worth it to get these tires.

BillJ · 03-21-2009, 05:21 PM

great write up and let me tell you that on the track in the wet, they were still very grippy. Me like so far too...

Dennis C · 03-21-2009, 07:11 PM

I actually tried to have a set installed today but TireRack was sold out. I have to wait a week or two now.

sparks259 · 03-21-2009, 07:59 PM

drove the III's on track.
grip is so-so, nothing to brag about.

jyoteen · 03-22-2009, 01:07 AM

Quote:

Originally Posted by sparks259

drove the III's on track.
grip is so-so, nothing to brag about.

I would be unsatisfied with street rubber on the track so I'd be going with either something like toyos or Hoosiers

Van · 03-26-2009, 02:45 PM

Quote:

Originally Posted by sparks259

drove the III's on track.
grip is so-so, nothing to brag about.

Ever drive PS2s on the track?

Dennis C · 03-26-2009, 02:58 PM

I have ordered a set. They are being installed at Tire Rack next week in South Bend.

kitwetzler · 03-26-2009, 10:07 PM

Quote:

Originally Posted by Van

Ever drive PS2s on the track?

They're still street tires. Even the hottest street tires, the NT-05s and the new RE-11, etc, put the PS2 to shame, and they still suck on the track after a couple of laps. R compounds are a whole new ball game

Van · 03-26-2009, 11:46 PM

I specifically want street tires on the 996 so I can drive it to the track. (Which is only a few times a year.)

The rest of the time I trailer the race car, which only uses R compounds... but sometimes I feel like playing hooky from work and sneaking out with the 996.

FWIW, I've done about 3 events on the PS2s and found them not too bad.

Edgy01 · 03-27-2009, 02:39 AM

Thanks for the write-up. What dimensions are you running F & R?

programmatore · 03-27-2009, 09:25 AM

Quote:

Originally Posted by Dennis C

I actually tried to have a set installed today but TireRack was sold out. I have to wait a week or two now.

That explains why it took TireVan (local service that comes to your home or office to install and balance the tires) took 2 weeks to get the tires. They called me last week to tell me the tires were stuck in US Customs!

I got them mounted on Wednesday. So far so good -- and the Sumos are really quiet! Granted the Pirelli P-Zero Rosso Assymetricos they replaced were pretty worn.

jyoteen · 03-27-2009, 03:18 PM

Quote:

Originally Posted by Edgy01

Thanks for the write-up. What dimensions are you running F & R?

stock C4s sizing. 235s and 295/30s in the rear

springgeyser · 03-27-2009, 04:51 PM

Quote:

Originally Posted by kitwetzler

They're still street tires. Even the hottest street tires, the NT-05s and the new RE-11, etc, put the PS2 to shame, and they still suck on the track after a couple of laps. R compounds are a whole new ball game

I drove PS2 on the track for DEs and AX. They work fine for 20 min sessions and it is faster than some cars wearing Toyos.

PS2 is a great all around tires if the price was not so darn high.

Some drivers need stickier compound tires to make up for other shortfall...

.

CosmosC4S · 03-27-2009, 05:06 PM

Quote:

Originally Posted by jyoteen

stock C4s sizing. 235s and 295/30s in the rear

I believe the stock fronts are 225 instead of 235

jyoteen · 03-27-2009, 05:47 PM

Quote:

Originally Posted by CosmosC4S

I believe the stock fronts are 225 instead of 235

right. I knew it didn't look right when I typed it.

03-21-2009, 04:49 PM	#1
jyoteen User Join Date: Nov 2003 Location: los angeles Posts: 474	I have about 250 miles on the new Sumitomos and some impressions Yes, the tires are still quiet. Quieter than the previous Michelins (even when the PS2s were new) Grip is comparable on the street. Frankly, I don't think i'd ever push to the limit of the tire on the street. That's just asking for trouble without run off room and worse, traffic, if any. I live a stone's throw away from Angeles Crest Highway and I've seen pretty bad accidents up there in the form of spirited driving. I bought these knowing full well that when I go to the track, i'll be running track tires, so the money you save here can be applied to a better performing tire specific to the application. Wet performance is tough to gauge (although we did have some rain) because when it rained, the tires were really new so I wasn't going to push it there either. Grip in the wet seems reasonable. Road feel is a bit muted due to the comfort that this tire seems to provide. Sidewall isn't soooo stiff that it's jarring. Responsiveness seems to be ok. Acceptable to me and I would think that I drive the car pretty hard. Braking is tough for me to say because I run track pads on the street with the full complement of bus squeal. I've been too lazy to change those out and thus, the pads never get hot enough for me to really see if the tires provide the confidence in going deep. That is all. It is worth it to get these tires.

03-21-2009, 05:21 PM	#2
BillJ Addict Rennlist Member Join Date: Mar 2006 Location: Charlotte, NC Posts: 757	great write up and let me tell you that on the track in the wet, they were still very grippy. Me like so far too... __________________ 2002 996 Seal Gray/Black - Clear side markers (+1 HP), bumperplugs (+1 HP), B&M SSK (+2 HP), Painted Console (8hp), Fabspeed Cats and Mufflers and Tips (+100 HP) Audi A6 2.7T 6-speed (Sold) 1995 993 (Sold) 1973 914 2.0 - Track car converted to 6 with all the goodies- sold

03-21-2009, 07:11 PM	#3
Dennis C A Texan Hoosier Rennlist Member Join Date: Aug 2007 Location: Northern Indiana Posts: 2,942	I actually tried to have a set installed today but TireRack was sold out. I have to wait a week or two now. __________________ Dennis 2004 Porsche Cayenne S 2002 Porsche Carrera 4S

03-26-2009, 02:58 PM	#7
Dennis C A Texan Hoosier Rennlist Member Join Date: Aug 2007 Location: Northern Indiana Posts: 2,942	I have ordered a set. They are being installed at Tire Rack next week in South Bend. __________________ Dennis 2004 Porsche Cayenne S 2002 Porsche Carrera 4S

03-27-2009, 02:39 AM	#10
Edgy01 Poseur Rennlist Member Join Date: Nov 2005 Location: Santa Barbara, CA Posts: 10,328	Thanks for the write-up. What dimensions are you running F & R? __________________ Dan 06 997S PCCB Hard-Top Cabrio Turq. Blue, Nat. Brn Leather http://www.rennteam.com/photopost/sh...00&ppuser=8756

03-21-2009, 07:59 PM	#4
sparks259 Addict Rennlist Member Join Date: Jun 2006 Location: Fair Lawn, NJ Posts: 324	drove the III's on track. grip is so-so, nothing to brag about.

03-26-2009, 11:46 PM	#9
Van Addict Rennlist Member Join Date: Oct 2002 Location: Woodstock, NY Posts: 5,089	I specifically want street tires on the 996 so I can drive it to the track. (Which is only a few times a year.) The rest of the time I trailer the race car, which only uses R compounds... but sometimes I feel like playing hooky from work and sneaking out with the 996. FWIW, I've done about 3 events on the PS2s and found them not too bad.