Tires, tires, tires

7006 messages, Last post on Oct 29, 2009 at 11:24 AM

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What is this discussion about? Tires, Wheels, Steering

Edmund's Feature Article: Tire Safety: Don't Ignore the Rubber on the Road

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#4565 of 7006 Personal Injury. by driftracer Mar 21, 2005 (4:19 am)

#4566 of 7006 Max Performance Tires by kschac Mar 21, 2005 (9:29 am)
I have a 2004 BMW 545i with sport package - 18 inch BMW wheels. I am looking to replace the rather uncomfortable OEM Dunlop run flats with a set of max performance summer tires. I am deciding between the Goodyear F1 GS-D3 and the Michelin PS2's. Tire sizes are 245/40-18 (front) and 275/35-18 (rear). While high performance is a priority, I would be willing to sacrifice the last degree of performsnce for some enhanced comfort. I live in the NYC area and we have a lot of potholes! Any thoughts or suggestions? Replies to this message: kschac (Mar 27, 2005 7:16 pm) rwoods (Apr 19, 2005 10:28 am)
#4567 of 7006 Data Points by ruking1 Mar 21, 2005 (9:53 am)
Hard choice, I have seen very high ratings for the Michelin PS2's. But I have to tell you I am also excited by the GY Eagle F1 GS-D3. The D3's seem to balance out a lot of the negatives of the all out max performance tires like the GY Eagle F1 SuperCars. SC's are notoriously sticky, but because of max performance, dry traction design; suffer in the WET department and comfort department. So my perspective is from three data points: 265-40-17, 295-35-18's GY Eagle F1 SuperCars. These were replaced with Toyo Proxes T1S's due to the fact, D3's do not currently come in the above stock sizes. Also with Michelin's Pilot Sports A/S's 205/50-17 on a BMW 330i.
#4568 of 7006 I believe that by krzyss Mar 21, 2005 (11:50 am)
Car&Driver put F1 GS-D3 on their long term Evo and they were not happy. Krzys Replies to this message: ruking1 (Mar 21, 2005 12:12 pm)
#4569 of 7006 Re: I believe that [krzyss] by ruking1 Mar 21, 2005 (12:12 pm)
Replying to: krzyss (Mar 21, 2005 11:50 am) What were they unhappy about?
#4570 of 7006 Here it comes: by krzyss Mar 22, 2005 (5:14 am)
"... we replaced them with a set of Goodyear's Eagle F1 GS-D3 maximum performance tires ($165 each). The excessive tire hum that plagued the Evo was gone, but the ride became even more harsh than before. Furthermore, a testing session revealed that the Goodyears couldn't match the grip of the original Advans (0.95 g versus 0.92 g) and subjectively the Eagles felt less predictable in wet cornering. At the end of the test, the Eagles had about 15,000 miles on them and looked as if they'd endure to at least 30,000. Despite the increased longevity, we'd look elsewhere for replacement tires." Krzys http://www.caranddriver.com/article.asp?section_id=3&article_id=9270&page_number=4
#4571 of 7006 Predictable by ruking1 Mar 22, 2005 (7:38 am)
I'd say most predictable. They need to (CnC) compare and contrast at least 5-10 likely suspects before they come off of the "goldilocks" (too hot:too cold, too hard:too soft etc syndrome. There are a host of technical reasons you can probably infer as they mention them in passing. One example, a UTOQ of 140 vs Goodyear of 280. 2nd example, the suspension is very tuned to a specific set of parameters and in fact the ride probably started off hard as nails: so to merely switch the tire especially with a UTOQ of 280 vs old of 140 will most certainly change perception and things.
#4572 of 7006 LQQK what I found by ruking1 Mar 22, 2005 (8:15 am)
I found this after I wrote the above post. ..."With such a harsh suspension, many began to feel as if they'd joined a cult of flagellants."...
#4573 of 7006 After reading this by krzyss Mar 22, 2005 (8:19 am)
I should thank my wife for steering me toward Legacy GT from STi or Evo. Krzys
#4574 of 7006 Durability? by ruking1 Mar 22, 2005 (8:33 am)
Even though the performance for the buck is very good, (30,000) it would seem to keep it going and keep it "FRESH" would require a sum of $ reserves equal to or exceeding the original cost of the EVO. Seems a good used Corvette Z06 would be the ticket for those coveted romps on the track. Seems like you would need a spare set of rims, tire set choices, brake pads and rotors and obligatory brake fluid bleeds.