This is just brilliant, I was looking for a tire to replace my Cup2s with AD09 on my 718 GT4, first search and your video came up. Mine is manual as well and similar setup with camber. Much thanks for the comparison and review 👏🏻
Yea I am struggling to see any kind of downside. Faster. Cheaper. Probably better in the wet and have significantly more tread depth. Will update with longer term observations after a few more track days.
@@SteveReed33 Just progrss and new technology. The pilot cup 2 was relased early 2014 so it's almost 10 years old like the AD08. Seems like it could be the new halo tyres. Similar to RS4 in wear, treadlife and grip but actutlly good in wet as well as not having that dangerous snap out oversteer or sudden chronic understeer when tyres are not up to temp, in wet, worn or heat cycled. A052 still seems best for low speed sprint events where a softer tyre that gets to temp quickly is ideal although the AD09 is not that far off seems to have better high speed stability, wear and road use. Also the new Bridgestone RE-71 RS that just replaced the RE-71R seems like a good one to try. The old RE-71R seemed very similar to the A052 being very soft fast working and fast wearing although the new RE-71RS seems to now sit between the A052 and the AD09 now having stiffer sidewalls better high speed stability and better wear and street/wet usage as well as like the AD09 now also switching to an Asymmetric pattern for an easy rotate at the track. Might be worth trying those next 👍
Re71 RS are definitely the fastest tyre in this category but they don't make them in 20 inch sizes so not an option for me without downsizing wheels. I plan to try A052's next but they are more expensive and don't last very long so I feel like these AD09's have struck a good balance.
Very similar. Better in the wet with no real downside. I used AD08's in the past and they were extremely noisy but the AD09's aren't really any louder than the Cup 2's.
@@SteveReed33 they aren’t available in my size (997 gt3 -19’) but I would to test a set of A052 for my next semi slick set especially for wet conditions !
@@lomnt3402 A052 are quite a different tyre. They are faster over 1 lap but nowhere near as durable, and will overheat a lot easier. Good in the wet but not as durable as the AD09.
Hey great video and I picked the AD09 for my car as well. Like them and have done 7 track days with them. The last two track days at speeds upwards of 200km/h at Road Atlanta I started noticing vibrations. I did some searching online and on Rennlist for the tires and also came across your post there mentioning the same. As they get used and worn, they can generate a vibration that is not there with the cup 2s. I was relieved when I came across your post to know its likely the tires and not something more serious. How many track days did you do with yours before you started noticing the vibration? Thanks!
Hey, sharp observation! It depends on the speeds with those vibrations. I used a brand new fresh set at Bathurst last year and the vibrations started to appear towards the end of the first day, but only at very high speeds, I'm talking 250km/hr+ That same set has done about 7 track days now and they are only just developing some minor vibrations at lower speeds but it is quite minor compared to previous sets. I think its largely related to how the tyre is wearing throughout its life, and it can go in and out of balance. I would be interested to take a set that is vibrating to a wheel shop for a rebalance and see if that helps.
@@SteveReed33 Thanks for the feedback! Yeah, i thought about getting them rebalanced. Before that last track weekend wheels did come off as I got new Girodisc and pads installed. Wondered if that threw something off and if by now they're just heat cycled out. I have one track day this weekend and will see how they behave and go from there.
AMAZING. Now if Yoko could just get their sh@t together and get the rear size released here in the US. The dates have been pushed 3 times now. Launch date for the rear sizes was supposed to be June 1st here in the US.
I was running about 25PSI cold in the front and they handled that just fine. Can probably go even lower as the pyro was showing signs of overinflation at anything above 30PSI when hot. They handle the lower pressures much, much better than the Michelins do.
How are they wearing Steve? We're about to run some on a customer's 991 GT3RS (265/35R20, 325/30R21) and I'm very excited to see the results against a Cup2
I have done about 6-7 track days now plus 2 drift days and they are just starting to reach the wear indicators. Lap times have dropped slightly but are still outperforming Cup 2's. I think the only reason I will ever buy Cup 2's again will be to have on the car when I sell it.
In Europe unfortunately they are not available in the standard size 245/35 20“ anyone knows if 255/35 20“ is going fine instead? (on original GT4 wheels)
I was planning to try the 255's to get some more front tyre but I have had enough clearance issues as it is with standard sizes. They definitely make them in 245 so i'm surprised you can't get them!
I was looking for a solid track tire I can use on the street that wasn't gonna leave me broke my cars gonna be around 500whp I think these should be perfect
I have always used yokohama. The new ad09 is a superb overall tyre and they perform well in wet conditions and last longer. One of the best advantages over the Michelin is the steering feel and off centre sharpness. I do not use michelins for this reason as the sidewalls are too soft which gives a numb steering response and when driving at the limit the tyre feels like it wants to roll over and feels squishy. And they are overpriced for what they deliver. I bet off the bat, you would have noticed the better steering.
Great review, just bought these for my Lotus so will be interesting to see if i get similar results. What cold pressure did you start off with on these?
I was starting around 25/26psi in the front and they didn't roll over at all like the Michelins did. I am going back again this weekend and will take some measurements with the pyro to see how the temps go across the face. Aiming for 30/32psi when hot but will adjust if any measurements are out.
Most measurements I took indicated they were overpressured. I have been running them at about 28/30psi front/rear and getting better temperature readings. The lower I run them the better they seem to perform.
My Cup 2 Lap time was with brand new tyres. I had been pegged to my previous PB for over a year through multiple sets of Cup 2's and these tyres wiped the floor with them in a single night.
![Michelin Pilot Sport 4S VS Michelin Pilot Sport Cup 2 - Compared on Track [*]](http://i.ytimg.com/vi/ls8YawSKIrQ/mqdefault.jpg)
This is just brilliant, I was looking for a tire to replace my Cup2s with AD09 on my 718 GT4, first search and your video came up. Mine is manual as well and similar setup with camber. Much thanks for the comparison and review 👏🏻
Nice! Been a Yokohama fan for many years. Always perform well. Thanks for the video. 👍
The AD09 is our control tyre, they stand up to a beating really well with pretty consistent times through out their life
Yep I set a lap time within a tenth of a second of this brand new time after something like 6 or 7 track days, they heat cycle extremely well.
Thanks for the video, the old AD08Rs were an amazing track/road tyre, looks like these are just as good.
That's insane! This is everything i needed from a "review" Thanks bud 👍
Lovely car mate. That track looks like good fun, especially at night! Great review and nice driving. ❤
Very nice telemetry overlay!
Nice to hear, also they should be much better on street and in the wet then the Cup 2 as well as last longer too.
Yea I am struggling to see any kind of downside. Faster. Cheaper. Probably better in the wet and have significantly more tread depth. Will update with longer term observations after a few more track days.
@@SteveReed33 Just progrss and new technology. The pilot cup 2 was relased early 2014 so it's almost 10 years old like the AD08.
Seems like it could be the new halo tyres.
Similar to RS4 in wear, treadlife and grip but actutlly good in wet as well as not having that dangerous snap out oversteer or sudden chronic understeer when tyres are not up to temp, in wet, worn or heat cycled.
A052 still seems best for low speed sprint events where a softer tyre that gets to temp quickly is ideal although the AD09 is not that far off seems to have better high speed stability, wear and road use.
Also the new Bridgestone RE-71 RS that just replaced the RE-71R seems like a good one to try.
The old RE-71R seemed very similar to the A052 being very soft fast working and fast wearing although the new RE-71RS seems to now sit between the A052 and the AD09 now having stiffer sidewalls better high speed stability and better wear and street/wet usage as well as like the AD09 now also switching to an Asymmetric pattern for an easy rotate at the track. Might be worth trying those next 👍
Re71 RS are definitely the fastest tyre in this category but they don't make them in 20 inch sizes so not an option for me without downsizing wheels. I plan to try A052's next but they are more expensive and don't last very long so I feel like these AD09's have struck a good balance.
@@SteveReed33
Yeah sounds good, I think the AD09's are better for what you want to use them for than the A052's
Great video! Love the Ad09s
Good driving and excellent telemetry
An Ausi on utube, u little beauty! & at E.C. Well done!
Try Yokohama A052 to go even quicker. But they wear out very quickly.
Yep I plan to do that eventually, but they are more expensive as well as less durable so unless I really need that extra lap time I am good.
Nice video Steve.
What are the advans like on the street compared to the cup2’s when it comes to comfort and road noise?
Very similar. Better in the wet with no real downside. I used AD08's in the past and they were extremely noisy but the AD09's aren't really any louder than the Cup 2's.
what about the behaviour on several laps ? endurance ? What's your point of view on a long term comparison with the Cup2 ?
Much more durable than Cup 2's. They still fall off when they get hot but they definitely hold on better over a stint than Cup 2's do.
@@SteveReed33 they aren’t available in my size (997 gt3 -19’) but I would to test a set of A052 for my next semi slick set especially for wet conditions !
@@lomnt3402 A052 are quite a different tyre. They are faster over 1 lap but nowhere near as durable, and will overheat a lot easier. Good in the wet but not as durable as the AD09.
Hey great video and I picked the AD09 for my car as well. Like them and have done 7 track days with them. The last two track days at speeds upwards of 200km/h at Road Atlanta I started noticing vibrations. I did some searching online and on Rennlist for the tires and also came across your post there mentioning the same. As they get used and worn, they can generate a vibration that is not there with the cup 2s. I was relieved when I came across your post to know its likely the tires and not something more serious. How many track days did you do with yours before you started noticing the vibration? Thanks!
Hey, sharp observation! It depends on the speeds with those vibrations. I used a brand new fresh set at Bathurst last year and the vibrations started to appear towards the end of the first day, but only at very high speeds, I'm talking 250km/hr+
That same set has done about 7 track days now and they are only just developing some minor vibrations at lower speeds but it is quite minor compared to previous sets. I think its largely related to how the tyre is wearing throughout its life, and it can go in and out of balance. I would be interested to take a set that is vibrating to a wheel shop for a rebalance and see if that helps.
@@SteveReed33 Thanks for the feedback! Yeah, i thought about getting them rebalanced. Before that last track weekend wheels did come off as I got new Girodisc and pads installed. Wondered if that threw something off and if by now they're just heat cycled out. I have one track day this weekend and will see how they behave and go from there.
Have always had AD08 on my Evo X. Price and quality beats anything. The yoko’s are a semi-slick and road legal. Just look at the tread pattern.
thanks mate, very concise video. nice driving too
AD09 is a great tyre.
AMAZING. Now if Yoko could just get their sh@t together and get the rear size released here in the US. The dates have been pushed 3 times now. Launch date for the rear sizes was supposed to be June 1st here in the US.
Hey man, I also have a gt4 and just picked up a set of these. What PSI are you running front/back that you’ve found works best?
About 1.9Bar front and 2.2Bar rear when hot seems to be a sweet spot, maybe even a little lower in the rear.
very nice versus ! nice tires on good car = perfect combo .enjoy!
Great info thanks for posting, what cold & hot pressures do run with the AD09?
I was running about 25PSI cold in the front and they handled that just fine. Can probably go even lower as the pyro was showing signs of overinflation at anything above 30PSI when hot. They handle the lower pressures much, much better than the Michelins do.
@@SteveReed33 Thanks just ordered these, what about the rear tyres, same as front?
@@jimg2812 Depends on the car but 1-2psi more in the rear for mine.
Hi, did you ever try by any chance 255/35 AD09 on the stock fronts?
How are they wearing Steve? We're about to run some on a customer's 991 GT3RS (265/35R20, 325/30R21) and I'm very excited to see the results against a Cup2
I have done about 6-7 track days now plus 2 drift days and they are just starting to reach the wear indicators. Lap times have dropped slightly but are still outperforming Cup 2's. I think the only reason I will ever buy Cup 2's again will be to have on the car when I sell it.
Waiting the ad 09 for the FL5.... I hate that they are not available in the correct size for my 992 gt3
Just run the 265/35R20 front and 325/30R20 rear then?
Size not legal in Italy
Andthe AD09R will still come. (I hope)
In Europe unfortunately they are not available in the standard size 245/35 20“ anyone knows if 255/35 20“ is going fine instead? (on original GT4 wheels)
I was planning to try the 255's to get some more front tyre but I have had enough clearance issues as it is with standard sizes. They definitely make them in 245 so i'm surprised you can't get them!
245/40 but not the standard 245/35
I was looking for a solid track tire I can use on the street that wasn't gonna leave me broke my cars gonna be around 500whp I think these should be perfect
I have always used yokohama.
The new ad09 is a superb overall tyre and they perform well in wet conditions and last longer.
One of the best advantages over the Michelin is the steering feel and off centre sharpness.
I do not use michelins for this reason as the sidewalls are too soft which gives a numb steering response and when driving at the limit the tyre feels like it wants to roll over and feels squishy.
And they are overpriced for what they deliver.
I bet off the bat, you would have noticed the better steering.
Are those cup 2's N0 porsche code?
Or just regular cup 2's?
They are the N1 Porsche ones.
Great work thanks or the info
What digital dash recorder is that? Factory?
Data is from the Porsche Track Precision app. Visualised using a custom RaceRender template.
Great review, just bought these for my Lotus so will be interesting to see if i get similar results. What cold pressure did you start off with on these?
I was starting around 25/26psi in the front and they didn't roll over at all like the Michelins did. I am going back again this weekend and will take some measurements with the pyro to see how the temps go across the face. Aiming for 30/32psi when hot but will adjust if any measurements are out.
@@SteveReed33 i will be using them Sunday on track for the first
time, let's compare notes !
@@SteveReed33How did you end up going with the temp data? Did you have to alter pressures?
Most measurements I took indicated they were overpressured. I have been running them at about 28/30psi front/rear and getting better temperature readings. The lower I run them the better they seem to perform.
What temps were you seeing, if you don’t mind me asking? Mine were reaching into the 70’s
Like the look of these as my AR1's are not streetable , way too loud
Your front discs are the other way around .... the grooves need to face forward.
I would rather the grooves face backwards than the cooling vanes tyvm.
try new cup 2 s next time. poor test without new for new tyres
My Cup 2 Lap time was with brand new tyres. I had been pegged to my previous PB for over a year through multiple sets of Cup 2's and these tyres wiped the floor with them in a single night.
Don't undersell yourself Sandbags
Without a G-G diagram the comparison is not really useful.
Jesus some of you guys are hard to please. Will you settle for a side by side?
ua-cam.com/video/YKjD47ZI5vo/v-deo.html
@SteveReed33 why even bother with these kinds of comments? Lol.