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      10-01-2013, 03:54 AM   #1
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r888s or AD08Rs

right now I'm on 295 PSS and I'm looking for something with more dry grip

I've got the 295s on comp wheels that have 2mm taken off the inside of them with kw club sports and it rubs a touch over bumps when going quick

do the r888s or the AD08Rs run a little smaller then the PSS? I'm told a 295 in a PSS is more like a 305 but i don't know if this is right

right now I'm wheel spinning to much at the top of 2nd and the top of 3ed and I'm after something that will take care of that but i also don't really want the wheels to rub!

if you guys know of any other tires that would be better then the PSS for me let me know
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      10-03-2013, 05:14 AM   #2
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anyone?
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      10-03-2013, 05:45 AM   #3
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Looking at dimensions on Tire Rack, the section width of the AD-08 is slightly smaller ( 11.5 vs 11.9 inches) than the PSS, but the tread widths ( 11.5) are the same. I have run both on my stock suspension E92 in 295/30/19 without issues. I think the rim protection rubber on the sides of the PSS is a little thicker.

Traction wise, for hot or track use the AD-08 is far better, for cold and wet the PSS.
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      10-03-2013, 06:00 AM   #4
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Quote:
Originally Posted by arter View Post
Looking at dimensions on Tire Rack, the section width of the AD-08 is slightly smaller ( 11.5 vs 11.9 inches) than the PSS, but the tread widths ( 11.5) are the same. I have run both on my stock suspension E92 in 295/30/19 without issues. I think the rim protection rubber on the sides of the PSS is a little thicker.

Traction wise, for hot or track use the AD-08 is far better, for cold and wet the PSS.
thanks a lot dude! i think the AD08Rs should be all good then!

would love to hear what other people think i should do

Last edited by leigh; 10-03-2013 at 06:15 AM.
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      10-03-2013, 07:48 AM   #5
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ad08 run way wider than PSS. they also grip much better

once again, PSS are good street tires but they pale in comparison to real extreme summer tires when it comes to ultimate grip and cornering.

additionally, running a 295 on a 10 inch wheels is not a good idea IMO.

I would bet that you would have better results running an ad08r in 275 on that wheel. the grip levels shouldn't suffer much and you will have a much better fitment.
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      10-03-2013, 08:05 AM   #6
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The R888 is a different tire than the AD08r. You are comparing a street tire with a competition tire. The AD08r you can still drive in the rain but you shouldn't on the r888 especially if they are worn / shaved. That being said, you may never drive in the rain so that wouldn't affect you. Just pointing it out incase you didn't know. If you did, ignore please! Happy choosing!
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      10-03-2013, 08:31 AM   #7
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Quote:
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ad08 run way wider than PSS. they also grip much better

once again, PSS are good street tires but they pale in comparison to real extreme summer tires when it comes to ultimate grip and cornering.

additionally, running a 295 on a 10 inch wheels is not a good idea IMO.

I would bet that you would have better results running an ad08r in 275 on that wheel. the grip levels shouldn't suffer much and you will have a much better fitment.
Well if you look on tire race they run 11.6 inches and the pss run 11.9 so I don't see how they would be wider

My car will cook 275s I've got an ess 650 kit with 3.45 diff gears
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      10-03-2013, 08:32 AM   #8
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Quote:
Originally Posted by happos2 View Post
The R888 is a different tire than the AD08r. You are comparing a street tire with a competition tire. The AD08r you can still drive in the rain but you shouldn't on the r888 especially if they are worn / shaved. That being said, you may never drive in the rain so that wouldn't affect you. Just pointing it out incase you didn't know. If you did, ignore please! Happy choosing!
I know I do drive in the rain but speaking to someone that has them he said there ok just be safe
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      10-03-2013, 08:34 AM   #9
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Quote:
Originally Posted by leigh View Post
Well if you look on tire race they run 11.6 inches and the pss run 11.9 so I don't see how they would be wider

My car will cook 275s I've got an ess 650 kit with 3.45 diff gears
you should read up more on tire fitment. a 10 inch wheel is not wide enough to run a 295 on and maintain good handling characteristics. this forum is littered with people who have done this and will tell you the same thing. there is a reason that BMW runs fitments like 9.5 / 10 inch wheels on a 265 tire.

additionally, I have run re11 and PSS on the same wheel and the re11 was much wider than the pss. the shape of the tire is totally different, RE11 is much more square. I have also seen ad08 next to PSS on the same wheel, and the ad08 is significantly wider

the difference between 295 and 275 is not that significant, and the fact that A ) the wheel / tire fitment on a 295 is not stretched enough and B ) the fact that PSS is far inferior to AD08 in overall grip tells you that the results of the ad08 would be better.

IF you feel like you need 295s, you should buy wider wheels (10.5-11 inches) and run an ad08 on that wheel
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      10-03-2013, 08:46 AM   #10
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Quote:
Originally Posted by KennyPowers View Post
you should read up more on tire fitment. a 10 inch wheel is not wide enough to run a 295 on and maintain good handling characteristics. this forum is littered with people who have done this and will tell you the same thing. there is a reason that BMW runs fitments like 9.5 / 10 inch wheels on a 265 tire.

additionally, I have run re11 and PSS on the same wheel and the re11 was much wider than the pss. the shape of the tire is totally different, RE11 is much more square. I have also seen ad08 next to PSS on the same wheel, and the ad08 is significantly wider

the difference between 295 and 275 is not that significant, and the fact that A ) the wheel / tire fitment on a 295 is not stretched enough and B ) the fact that PSS is far inferior to AD08 in overall grip tells you that the results of the ad08 would be better.

IF you feel like you need 295s, you should buy wider wheels (10.5-11 inches) and run an ad08 on that wheel
I've been looking for wheels for 2 years now and I can't find anything I'm happy with

So maybe I will put a 275 on it but I'll cry if it doesn't work maybe even a 275 r888
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      10-03-2013, 09:37 AM   #11
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R888 is a "rounder" tire/profile than the more square and stable AD08. AD08 is thus more stable but the R888 is an R-comp and a stickier tire. The RA1 has a square profile and is an R-comp and a great tire. Better than both in the rain when new and about the same as the R888 when worn to a slick.

IMO the AD08 and PS2 were fairly similar with the AD08 just edging it out, but i've never driven on the PSS to compare but it should be a lot better than the PS2.

Why not go with a Nitto NT01? I'd probably take a 275 NT01 over a 295 R888/PSS/AD08.
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      10-03-2013, 09:55 AM   #12
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Quote:
Originally Posted by Billj747 View Post
R888 is a "rounder" tire/profile than the more square and stable AD08. AD08 is thus more stable but the R888 is an R-comp and a stickier tire. The RA1 has a square profile and is an R-comp and a great tire. Better than both in the rain when new and about the same as the R888 when worn to a slick.

IMO the AD08 and PS2 were fairly similar with the AD08 just edging it out, but i've never driven on the PSS to compare but it should be a lot better than the PS2.

Why not go with a Nitto NT01? I'd probably take a 275 NT01 over a 295 R888/PSS/AD08.
AD08 and PS2 are comparable how? In grip? No way. PS2 has less grip, less road noise. I know you stated in your opinion...but it is a fact that AD08 is supreme to the PS2 in grip!
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      10-03-2013, 09:58 AM   #13
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Quote:
Originally Posted by happos2 View Post
AD08 and PS2 are comparable how? In grip? No way. PS2 has less grip, less road noise. I know you stated in your opinion...but it is a fact that AD08 is supreme to the PS2 in grip!
agree. to be clear, I am comparing PSS to RE11, but I have driven both on the track on the same car and the re11 is way better and wears way less. it is a far superior tire for that purpose
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      10-03-2013, 10:01 AM   #14
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Quote:
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agree. to be clear, I am comparing PSS to RE11, but I have driven both on the track on the same car and the re11 is way better and wears way less. it is a far superior tire for that purpose
Sorry, I thought I was quoting Billj747...sorry for the misquote. opps. I agree with you regarding the RE11 and PSS as well.
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      10-03-2013, 10:03 AM   #15
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Sorry, I thought I was quoting Billj747...sorry for the misquote. opps. I agree with you regarding the RE11 and PSS as well.
no you did. what I meant was that I have not driven the ad08 specifically, but equate the re11 and ad08 as they are extremely similar and much more similar than a PSS for example

both the re11 and ad08 are very similar tires. the main difference to me is that the ad08 is available in more m3 friendly sizes. hopefully that will change with the new re11R
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      10-03-2013, 11:08 AM   #16
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I like AD08's and can only assume that AD08R's are better. I agree with one of the other posts above in that 275/35/19 may have better results with the 10" wide ZCP wheel.

I have never used RE11's so I can't compare them to AD08R's.
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      10-03-2013, 11:24 AM   #17
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Quote:
Originally Posted by happos2 View Post
AD08 and PS2 are comparable how? In grip? No way. PS2 has less grip, less road noise. I know you stated in your opinion...but it is a fact that AD08 is supreme to the PS2 in grip!
I said fairly similar -meaning overall characteristics including wet grip, and I did state the AD08s edged out the PS2 in dry grip...

I will further elaborate that the AD08 keeps its performance up over the course of many track days much better than the PS2 where the PS2 falls off in performance and grinds of the shoulder of its circumferential grooves after a day or session (depending on how heavy the car is), but outright new vs. new the PS2 isn't that far off. This was back to backed on my E36 M3 and have driven on AD08s on many different cars.
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      10-03-2013, 11:34 AM   #18
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Just to note, Tirerack and the tire vendor both recommend 10 to 11" inches widths for a 295/30/19. which would fit the ZCP wheel.

I tracked with the 295/30/19 AD-08 for 2 years on my ZCP wheels with good results.


NT-01 is fine dry, or with just a damp road/ track. Standing water, no especially once any wear occurs......
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      10-03-2013, 03:25 PM   #19
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Can someone confirm that the ad08r would be a little smaller then the pss
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      10-09-2013, 05:30 PM   #20
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Quote:
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Can someone confirm that the ad08r would be a little smaller then the pss
what do you mean by smaller?

I have a set of AD08R's and a set of PSS in my garage right now...

both are 265's...and the ad08r's look wider
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      10-09-2013, 10:40 PM   #21
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Quote:
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Can someone confirm that the ad08r would be a little smaller then the pss
AD08's are the widest and squarest tires I have ever seen. I have had both and AD08's are wider than PSS. The only portion of the PSS that may be technically wider is at the rim edge. The PSS has a big "rim protector" ridge.
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