Tires
Le Mans Master
Joined: Jan 2000
Posts: 6,725
Likes: 0
From: South Bend IN
Originally Posted by charlietuna
Anyone had good luck changing tires from EMT to regular?? As far as improved performance, ride and noise.. What Brand ?????
Race Director
Joined: Dec 2000
Posts: 19,304
Likes: 85
From: San Diego CA
Goodyear GS D3s
Originally Posted by charlietuna
Anyone had good luck changing tires from EMT to regular?? As far as improved performance, ride and noise.. What Brand ?????
The new Goodyear GS D3s out-perform everything else, are made in the USA, and cost less than $900 a set through one of the forum members. Here's a great review/comparison:
"Productreview: F1 GS D3
By Dan Barnes
Photography: Dan Barnes
Designed in Europe, the Eagle F1 GS D3 is Goodyear's "first truly global product," and its first tire aimed at the maximum-performance tire segment. The Eagle F1 GS D3 targets sport compact and tuner vehicles, and follows Goodyear's traditional emphases of maximum wet performance and good, all-around driveability. Goodyear is producing the Eagle F1 GS D3 in 39 sizes, from 15 to 21 inches.
The Eagle F1 GS D3 has internal construction features expected from the latest maximum-performance tire, including high-tensile steel belts, spiral-wound cap plies for excellent roundness and high-speed durability, high ply turn-up for strong sidewalls and quick response, and a rim flange protector molded into the sidewall.
It's the tread design that sets the new Eagle apart. It's divided into three zones; a solid center rib for good steering response is connected to shoulders with large, solid tread blocks by a series of power transfer bridges. The latter are part of what Goodyear calls V-TRED. The diagonal grooves are three times the length of the contact patch, helping evacuate water and avoid trapping air, thus reducing noise. Goodyear refers to the tread compound by the AAtrax moniker, emphasizing the tire's AA UTQG traction rating.
We sampled the Eagle F1 GS D3 at Goodyear's proving grounds outside San Angelo, Texas. The 7,250-acre facility has 58 miles of roadway with 53 different surfaces. There we witnessed demonstrations of wet-traction testing with a pickup truck and trailer test rig, as well as the phosphorescent hydroplaning test made famous in Aquatred commercials. The latter can be done at speeds approaching 200 mph for racing applications. We also drove the new Eagle F1 on a dry-handling loop in 2002 Audi A4 sedans. At moderate to high slip angles, the Eagle F1 felt like a good, ultra-high-performance tire, but it does make more noise than most tires in the maximum-performance category when cornering loads rise. The grip-slip knee in the load/slip-angle curve was very gradual. That made the tire extremely forgiving, but it also made it difficult to decide how hard the tire wanted to be pushed for best speed. Overall, though, the strongest impression was that the Eagle F1's capabilities were well beyond those of the stock Audi's suspension, and a complete evaluation would require a car with more aggressively tuned dynamics.
For evaluation on its Vehicle Dynamics Area, flooded to 0.050 inch with water, Goodyear provided three convertible Corvettes equipped with automatic transmissions. One Vette wore Goodyear Eagle F1 GS D3, one wore Michelin Pilot Sport and one Bridgestone Potenza S-03 tires. Though the cars were theoretically identical, they were rentals and could have had some differences.
In a braking test, the numbers indicated the Michelin third, Bridgestone second and Goodyear first, inverse of the order in which we drove them. Interestingly, we didn't feel the ABS pulsing for the last third of the stopping distance with the Goodyear.
On the wet autocross, journalists were firmly instructed to drive in second gear with the Traction Control System on line. The Goodyear worked well and showed a gradual, forgiving nature. The tire was also well matched to the Corvette's TCS, which intervenes very late, and allows the driver to get sideways. The Michelins slid more and sooner than the Goodyears, and the car was a bit tail-happier. The Bridgestones slid the most."
Drifting
Joined: Sep 2000
Posts: 1,588
Likes: 0
From: las vegas nv
Originally Posted by Dave68
I have the GS D3s and the ride is superior to that of EMTs.
The new Goodyear GS D3s out-perform everything else, are made in the USA, and cost less than $900 a set through one of the forum members. Here's a great review/comparison:
"Productreview: F1 GS D3
By Dan Barnes
Photography: Dan Barnes
Designed in Europe, the Eagle F1 GS D3 is Goodyear's "first truly global product," and its first tire aimed at the maximum-performance tire segment. The Eagle F1 GS D3 targets sport compact and tuner vehicles, and follows Goodyear's traditional emphases of maximum wet performance and good, all-around driveability. Goodyear is producing the Eagle F1 GS D3 in 39 sizes, from 15 to 21 inches.
The Eagle F1 GS D3 has internal construction features expected from the latest maximum-performance tire, including high-tensile steel belts, spiral-wound cap plies for excellent roundness and high-speed durability, high ply turn-up for strong sidewalls and quick response, and a rim flange protector molded into the sidewall.
It's the tread design that sets the new Eagle apart. It's divided into three zones; a solid center rib for good steering response is connected to shoulders with large, solid tread blocks by a series of power transfer bridges. The latter are part of what Goodyear calls V-TRED. The diagonal grooves are three times the length of the contact patch, helping evacuate water and avoid trapping air, thus reducing noise. Goodyear refers to the tread compound by the AAtrax moniker, emphasizing the tire's AA UTQG traction rating.
We sampled the Eagle F1 GS D3 at Goodyear's proving grounds outside San Angelo, Texas. The 7,250-acre facility has 58 miles of roadway with 53 different surfaces. There we witnessed demonstrations of wet-traction testing with a pickup truck and trailer test rig, as well as the phosphorescent hydroplaning test made famous in Aquatred commercials. The latter can be done at speeds approaching 200 mph for racing applications. We also drove the new Eagle F1 on a dry-handling loop in 2002 Audi A4 sedans. At moderate to high slip angles, the Eagle F1 felt like a good, ultra-high-performance tire, but it does make more noise than most tires in the maximum-performance category when cornering loads rise. The grip-slip knee in the load/slip-angle curve was very gradual. That made the tire extremely forgiving, but it also made it difficult to decide how hard the tire wanted to be pushed for best speed. Overall, though, the strongest impression was that the Eagle F1's capabilities were well beyond those of the stock Audi's suspension, and a complete evaluation would require a car with more aggressively tuned dynamics.
For evaluation on its Vehicle Dynamics Area, flooded to 0.050 inch with water, Goodyear provided three convertible Corvettes equipped with automatic transmissions. One Vette wore Goodyear Eagle F1 GS D3, one wore Michelin Pilot Sport and one Bridgestone Potenza S-03 tires. Though the cars were theoretically identical, they were rentals and could have had some differences.
In a braking test, the numbers indicated the Michelin third, Bridgestone second and Goodyear first, inverse of the order in which we drove them. Interestingly, we didn't feel the ABS pulsing for the last third of the stopping distance with the Goodyear.
On the wet autocross, journalists were firmly instructed to drive in second gear with the Traction Control System on line. The Goodyear worked well and showed a gradual, forgiving nature. The tire was also well matched to the Corvette's TCS, which intervenes very late, and allows the driver to get sideways. The Michelins slid more and sooner than the Goodyears, and the car was a bit tail-happier. The Bridgestones slid the most."
The new Goodyear GS D3s out-perform everything else, are made in the USA, and cost less than $900 a set through one of the forum members. Here's a great review/comparison:
"Productreview: F1 GS D3
By Dan Barnes
Photography: Dan Barnes
Designed in Europe, the Eagle F1 GS D3 is Goodyear's "first truly global product," and its first tire aimed at the maximum-performance tire segment. The Eagle F1 GS D3 targets sport compact and tuner vehicles, and follows Goodyear's traditional emphases of maximum wet performance and good, all-around driveability. Goodyear is producing the Eagle F1 GS D3 in 39 sizes, from 15 to 21 inches.
The Eagle F1 GS D3 has internal construction features expected from the latest maximum-performance tire, including high-tensile steel belts, spiral-wound cap plies for excellent roundness and high-speed durability, high ply turn-up for strong sidewalls and quick response, and a rim flange protector molded into the sidewall.
It's the tread design that sets the new Eagle apart. It's divided into three zones; a solid center rib for good steering response is connected to shoulders with large, solid tread blocks by a series of power transfer bridges. The latter are part of what Goodyear calls V-TRED. The diagonal grooves are three times the length of the contact patch, helping evacuate water and avoid trapping air, thus reducing noise. Goodyear refers to the tread compound by the AAtrax moniker, emphasizing the tire's AA UTQG traction rating.
We sampled the Eagle F1 GS D3 at Goodyear's proving grounds outside San Angelo, Texas. The 7,250-acre facility has 58 miles of roadway with 53 different surfaces. There we witnessed demonstrations of wet-traction testing with a pickup truck and trailer test rig, as well as the phosphorescent hydroplaning test made famous in Aquatred commercials. The latter can be done at speeds approaching 200 mph for racing applications. We also drove the new Eagle F1 on a dry-handling loop in 2002 Audi A4 sedans. At moderate to high slip angles, the Eagle F1 felt like a good, ultra-high-performance tire, but it does make more noise than most tires in the maximum-performance category when cornering loads rise. The grip-slip knee in the load/slip-angle curve was very gradual. That made the tire extremely forgiving, but it also made it difficult to decide how hard the tire wanted to be pushed for best speed. Overall, though, the strongest impression was that the Eagle F1's capabilities were well beyond those of the stock Audi's suspension, and a complete evaluation would require a car with more aggressively tuned dynamics.
For evaluation on its Vehicle Dynamics Area, flooded to 0.050 inch with water, Goodyear provided three convertible Corvettes equipped with automatic transmissions. One Vette wore Goodyear Eagle F1 GS D3, one wore Michelin Pilot Sport and one Bridgestone Potenza S-03 tires. Though the cars were theoretically identical, they were rentals and could have had some differences.
In a braking test, the numbers indicated the Michelin third, Bridgestone second and Goodyear first, inverse of the order in which we drove them. Interestingly, we didn't feel the ABS pulsing for the last third of the stopping distance with the Goodyear.
On the wet autocross, journalists were firmly instructed to drive in second gear with the Traction Control System on line. The Goodyear worked well and showed a gradual, forgiving nature. The tire was also well matched to the Corvette's TCS, which intervenes very late, and allows the driver to get sideways. The Michelins slid more and sooner than the Goodyears, and the car was a bit tail-happier. The Bridgestones slid the most."
Drifting
Joined: Oct 2003
Posts: 1,884
Likes: 2
From: Walnut CA
Do a search
There's tons of posts on tires. You can find lots and lots of info/opinions. If you're looking for the best, the overwhelming opinion is for Michelin Pilot Sports and Goodyear GSD3s. Also Kumho Ecsta MXes are the best tire for the money (at least this is what the majority of the people on this forum say).
