PS2 or RE050-A ??
Nordschleife Master
Joined: Mar 2004
Posts: 8,573
Likes: 97
From: great white north
I noticed the PS2 is way lighter then the AD07's.
With the weight differences it seem like it a choice between less unsprung weight vs grip. If I had a TT the choice would be to go for grip but having a low hp car, is it better to go with the heavier grippier tire or the one that weights less?
For the same weight as the AD07's I could go with 235 front and 315 rear with PS2, are these just too much for a low hp car?
For Tirerack - How come PS2 doesn't show up on the list of choices for a 996 C4S, the sizes match up but only PS and PS Rib show up?
With the weight differences it seem like it a choice between less unsprung weight vs grip. If I had a TT the choice would be to go for grip but having a low hp car, is it better to go with the heavier grippier tire or the one that weights less?
For the same weight as the AD07's I could go with 235 front and 315 rear with PS2, are these just too much for a low hp car?
For Tirerack - How come PS2 doesn't show up on the list of choices for a 996 C4S, the sizes match up but only PS and PS Rib show up?
Last edited by jumper5836; Apr 5, 2008 at 09:08 PM.
Banned
Joined: Jan 2004
Posts: 3,473
Likes: 2
From: Pacific Northwest
I noticed the PS2 is way lighter then the AD07's.
With the weight differences it seem like it a choice between less unsprung weight vs grip. If I had a TT the choice would be to go for grip but having a low hp car, is it better to go with the heavier grippier tire or the one that weights less?
For the same weight as the AD07's I could go with 235 front and 315 rear with PS2, are these just too much for a low hp car?
For Tirerack - How come PS2 doesn't show up on the list of choices for a 996 C4S, the sizes match up but only PS and PS Rib show up?
With the weight differences it seem like it a choice between less unsprung weight vs grip. If I had a TT the choice would be to go for grip but having a low hp car, is it better to go with the heavier grippier tire or the one that weights less?
For the same weight as the AD07's I could go with 235 front and 315 rear with PS2, are these just too much for a low hp car?
For Tirerack - How come PS2 doesn't show up on the list of choices for a 996 C4S, the sizes match up but only PS and PS Rib show up?
GT3 player par excellence
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Joined: Apr 2002
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From: san francisco
short life, hardens fast, heat cycled to death on my 2000 lbs lotus in 2 track days.
very noisy
very expensive
for ME, i like PS2, RA1, R888 on street
on track RA1, R888, hoosiers
GT3 player par excellence
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Joined: Apr 2002
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From: san francisco
Thread Starter
Three Wheelin'
Joined: Feb 2003
Posts: 1,660
Likes: 6
From: Toronto, Canada
Thx for everybody's opinions here....
I currently run S02-A and like that tire... they are coming to the end of their life and am looking for a better tire... looks like TOYO RA-1 or 888 will be my next tire.... I plan to do at least 10-15 DE's this summer so I need something for track and street...
I currently run S02-A and like that tire... they are coming to the end of their life and am looking for a better tire... looks like TOYO RA-1 or 888 will be my next tire.... I plan to do at least 10-15 DE's this summer so I need something for track and street...
Nordschleife Master
Joined: Mar 2002
Posts: 5,077
Likes: 246
From: North Eastern US
Thx for everybody's opinions here....
I currently run S02-A and like that tire... they are coming to the end of their life and am looking for a better tire... looks like TOYO RA-1 or 888 will be my next tire.... I plan to do at least 10-15 DE's this summer so I need something for track and street...
I currently run S02-A and like that tire... they are coming to the end of their life and am looking for a better tire... looks like TOYO RA-1 or 888 will be my next tire.... I plan to do at least 10-15 DE's this summer so I need something for track and street...
.
Three Wheelin'
Joined: Oct 2004
Posts: 1,523
Likes: 5
From: Lesa, Italy & Atlanta, GA
using a G2X data logger on the same track with the same setup in similar weather in the same car. my lap times were faster with the PS2. additionally, the logger showed higher lateral and longitudinal levels of grip in every single corner. the PS2 is a faster tire.
Three Wheelin'
Joined: Oct 2004
Posts: 1,523
Likes: 5
From: Lesa, Italy & Atlanta, GA
it's just as fun to drive a car on street tires at the track as it is to run race tires. the only reason you really need race tires is if you need to be fast. no one NEEDS to be fast during a DE or a casual track day, it's only important that you are getting faster compared to yourself. you only NEED to be fast in a race.l some egos NEED to be fast during DE's or casual track days; it's fun to be quick. to say that someone isn't serious about the sport because he / she doesn't run race tires is ridiculous. it's not a fun factor issue, it's a bragging rights issue.
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Three Wheelin'
Joined: Oct 2005
Posts: 1,806
Likes: 19
From: New York, NY
it's just as fun to drive a car on street tires at the track as it is to run race tires. the only reason you really need race tires is if you need to be fast. no one NEEDS to be fast during a DE or a casual track day, it's only important that you are getting faster compared to yourself. you only NEED to be fast in a race.l some egos NEED to be fast during DE's or casual track days; it's fun to be quick. to say that someone isn't serious about the sport because he / she doesn't run race tires is ridiculous. it's not a fun factor issue, it's a bragging rights issue.
By the way Ben, using the data that Luke provided from their track comparing Michelins and the Bridgies, 0.7 seconds in the wet per lap is a pretty big difference. In a 50 lap race, you'd be waiting about 35 seconds for the Bridgestones to come in after the Michelins. But again, I hear what you're saying, particularly in light of what's quoted above. The key is to just be fast relative to yourself unless you're really racing.
Banned
Joined: Jan 2004
Posts: 3,473
Likes: 2
From: Pacific Northwest
it's just as fun to drive a car on street tires at the track as it is to run race tires. the only reason you really need race tires is if you need to be fast. no one NEEDS to be fast during a DE or a casual track day, it's only important that you are getting faster compared to yourself. you only NEED to be fast in a race.l some egos NEED to be fast during DE's or casual track days; it's fun to be quick. to say that someone isn't serious about the sport because he / she doesn't run race tires is ridiculous. it's not a fun factor issue, it's a bragging rights issue.
but i agree to about your point to a large extent. and i think a lot of dudes want to be FAST.
Banned
Joined: Jan 2004
Posts: 3,473
Likes: 2
From: Pacific Northwest
Agreed. Fantastically stated.
By the way Ben, using the data that Luke provided from their track comparing Michelins and the Bridgies, 0.7 seconds in the wet per lap is a pretty big difference. In a 50 lap race, you'd be waiting about 35 seconds for the Bridgestones to come in after the Michelins. But again, I hear what you're saying, particularly in light of what's quoted above. The key is to just be fast relative to yourself unless you're really racing.
By the way Ben, using the data that Luke provided from their track comparing Michelins and the Bridgies, 0.7 seconds in the wet per lap is a pretty big difference. In a 50 lap race, you'd be waiting about 35 seconds for the Bridgestones to come in after the Michelins. But again, I hear what you're saying, particularly in light of what's quoted above. The key is to just be fast relative to yourself unless you're really racing.
if i'm at the track with buddies, though, i'd be lying to myself if i didnt' want to be faster than them.
Three Wheelin'
Joined: Oct 2005
Posts: 1,806
Likes: 19
From: New York, NY
yea luke brought some data to the table which i can't refute with data points from my end so i appreciated that. as i had thought, the goodyear Eagle F1 asymms offer superior performance in the dry and wet... but i checked the sizes and it's even more limited than the pole positions.
UPDATE: It's not the F1 asyms, it's the directions GS-D3. Well, might still try them. Pretty good tread pattern.
Three Wheelin'
Joined: Oct 2004
Posts: 1,523
Likes: 5
From: Lesa, Italy & Atlanta, GA
i will agree that the compound is not quite the same as say a hoosier; the toyos aren't as sticky and won't heat cycle out as quickly. you will see LOTS of guys using the RA-1 as a rain tire in a race; it's a budget race tire that you can (sort of) use on the street.
very true. it takes a humble man to push equipment aside and just race himself for awhile. the temptation is always there to just spend some $$$ on the car and be faster than the next guy. i submit that usually, a driver will gain more speed spending that $$$ on track time instead.
