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Old 07-13-2005, 04:59 PM   #1
vz64
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Default test: Goodyear GS-D3, Michelin PS2, Nokian Z, P-Zero Nero, Continental SportContact 2

Russian magazine Autoreview compared a bunch of max/ultra perfromance tires (article link ). Test was done on Gerotek race track, South Africa.

Overall winner was GS-D3 followed by PS2, Nokian Z, Pirelli, and Continental. PS2 was the best dry road tire. Here are summary of their results:



From left to right, top to bottom:

-Hydroplaning speed in km/h (water depth was 20mm)
-Fastest corner speed in km/h, corner's radius 100m.

-Breaking distance from 100 km/h-0, wet
-Handling predictability, in points, wet condition
-Slalom-like wet road,time in sec.

-Breaking distance from 100 km/h-0, dry
-Handling predictability, in points, dry condition
-Slalom-like dry road,time in sec.

-Ride comfort, points,
-Noise level, points.

They praised a lot GS-D3, were very impressed with PS2 dry handling, surprised by decent perfromance of a new Nokian Z, and were quite disappointed with SportContact 2.
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Old 07-14-2005, 01:38 AM   #2
ripvw
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very cool - and not too suprising. the results are similar to what has been posted in Germany's Auto Motor und Sport test run on the Continental track here in Texas. I've never seen the GS-D3 lose a hydroplaning test - and obviously the tire excels in other areas as well. I just wish the sidewalls were a little firmer...

spaceba
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Old 07-14-2005, 12:05 PM   #3
vz64
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Also, looks like Nokian Z makes a very good wet tire - right after GS-D3 and ahead of PS2; in dry tests it is ahead of GS-D3 ! If price is right it can become a good choice for the max performance category.
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Old 07-14-2005, 12:26 PM   #4
subieworx
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I don't understand the basis for their testing, although it could just be that I don't speak Russian. How can they test the tires equally on different cars? That makes no sense from a comparison basis. Apples to oranges.
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Old 07-14-2005, 03:19 PM   #5
vz64
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Quote:
Originally Posted by subieworx
I don't understand the basis for their testing, although it could just be that I don't speak Russian. How can they test the tires equally on different cars? That makes no sense from a comparison basis. Apples to oranges.
I am afraid it is your Russian In their hydroplaning tests they used A4 and for all other tests they used Mercedes C180 Kompressor. Wierd, but at least all competitors were on the equal footing. The tire size was 225/45/17 on all tests.
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Old 07-14-2005, 03:25 PM   #6
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Ok, just wanted to make sure. Obviously I speak no Russian so there wasn't much I could figure out myself. And I didn't look too much into it.
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Old 07-15-2005, 10:44 AM   #7
Gonz
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GSD-3 is great in the wet and pretty good in the dry, but watch out if you are going to autoX with it.

those narrow tread blocks don't hold up that well.

Did the test have any pictures of what GSD-3 looked like at the end of the dry handling tests compared to the PS2 ?
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Old 07-18-2005, 08:50 PM   #8
vz64
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Quote:
Originally Posted by Gonz
...
Did the test have any pictures of what GSD-3 looked like at the end of the dry handling tests compared to the PS2 ?
No, it didn't. You mean how well tires hold after extensive testing? Or how long they lasted before getting greasy? I wish they report it. Their overall conclusion on GS-D3 was that the tire is very predictable in both dry and wet conditions despite the fact that some of dry road results lagged behind other tires. On PS2 they said that the tire was super-sticky and predictable on dry roads, but only average on wet roads. Even though PS2 wet track result was second after GS-D3, the testers had to work hard to achieve that result - the A4 was prone to lose traction abruptly in turns and overall wet handling was less predictable than that of GS-D3. I like my PS2, but I agree that they are not the best wet tires.
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Old 07-18-2005, 08:58 PM   #9
David Medina
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i think my PS2's do awsome in the rain. but only other tire ive had in re92...
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Old 07-18-2005, 10:21 PM   #10
Thumper23
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Quote:
Originally Posted by David Medina
i think my PS2's do awsome in the rain. but only other tire ive had in re92...
as much as everyone has knocked the RE92, they're a great tire for what they're designed for

do they suck at cornering, definitely

but they lasted me great through a year in CO (rain, snow, and even some dry canyon runs)
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