[friss]

Update: there was some rubbing in the front liners. Likely when I was braking into an uphill the front would squat a good bit.

0 rub on the rears though.

Wear looks pretty good for 5 25min sessions (3 vir full, 2 vir grand). Outside edge certainly seeing the lack of camber on this car.

 

[Vertigyn]

51 laps at Sebring. Wore pretty well. Performed very nicely.

Unfortunately not an apples to apples comparison to the Cup 2’s since I added an ARB, UCAs, and an alignment - but the car was over a second faster.

 

[bboixtc]

Resurrecting an old-ish thread. Guess I found my Cup2 replacements for the season!

 

[Kamber]

Edit: Nevermind, just checked and don’t think ECF are available in preferred Evora GT sizes.

Anyone have prior experience with Conti ECFs that can comment on how the AD09s compare to the ECFs as a non-competitive, hard wearing HPDE tire that lends itself well to warm weather DD duty when needed?

Trying to get an idea of the longevity, cold-grip, and wet-grip differences between the two.

 

[TNEngineer]

EC

Edit: Nevermind, just checked and don’t think ECF are available in preferred Evora GT sizes.

You mean EC Force tires? The EC Sports appear to be the go-to for non-track-rated Evora GT tires. I'm planning to put them on my Evora GT very soon. However, I seem to recall reading that someone had put AD09's on their Evora and thought well of them. AD09's are still 200TW tires, whereas the ECS's are (IIRC) in the mid 300TW's, so they're not really direct competitors. That said, word on the street is that the AD09's are wearing much better than their 200TW rating would suggest. And I'm loving the AD09's on our Elise SC. Decisions, decisions.

As I understand the Force's placement in the Conti lineup, they're more track focused while the ECS's are more street focused. So if you're looking for a "hard wearing HPDE tire that lends itself well to warm weather DD duty when needed" I'd think the ECS 02 would be the choice. There are several on LT here who really praise the ECS (02).

 

[Kamber]

EC

You mean EC Force tires? The EC Sports appear to be the go-to for non-track-rated Evora GT tires. I'm planning to put them on my Evora GT very soon. However, I seem to recall reading that someone had put AD09's on their Evora and thought well of them. AD09's are still 200TW tires, whereas the ECS's are (IIRC) in the mid 300TW's, so they're not really direct competitors. That said, word on the street is that the AD09's are wearing much better than their 200TW rating would suggest. And I'm loving the AD09's on our Elise SC. Decisions, decisions.

As I understand the Force's placement in the Conti lineup, they're more track focused while the ECS's are more street focused. So if you're looking for a "hard wearing HPDE tire that lends itself well to warm weather DD duty when needed" I'd think the ECS 02 would be the choice. There are several on LT here who really praise the ECS (02).

Yep, I was referring to the Conti Extreme Contact Force, which I believe are an endurance 200TW and not a super-200. I'm planning on running the Conti ECS02 as a year-round daily driver wheelset but also grabbing a separate wheelset with hard-wearing endurance 200TW tires for novice/intermediate HPDE lapping use; was debating between Conti ECF and Yoko AD09 for the latter wheelset.

 

[TNEngineer]

Hmm... that's a good question. My input regarding the AD09's is that they're amazing, at least on the Elise SC platform. Be sure to take some time checking out the many reviews. I was startled by the near-universal praise for the AD09's and took the chance. Everything the reviews said has proven true.

Let us know what you decide, I'd love to know more about the ECF's. I haven't seen too many reviews of those.

 

[Vertigyn]

I have the ECS for my daily driving tires. Great tire and no complaints.

For tracking on the Evora GT, I've experienced the Cup2 that previous owner had on the wheels and then replaced them with AD09. AD09 has been great thus far and I would use them over the Cup2. The Cup2 is probably a 'faster' tire, but they wore out very quickly and are so damn pricey. The AD09 seems to be a great combo of value/performance. Unfortunately I don't have apples to apples as when the AD09 went on, so did an ARB, UCA's, and more camber. The car ran 1.5 seconds faster than it did on the Cup2's. Alignment and ARB were probably more of that than the tires.

I had the ECF's on my BRZ and loved them. I thought highly of them but the gentleman that bought my wheel/tire set-up did not like them as much as his Falken 660's. Said the sidewall felt soft and sloppy. I didn't feel that way about them. And he also couldn't match my lap times with either tire...so grain of salt

 

[VL3X]

Any thoughts on the AD09s just for summer street tires? The stock Cup 2s weren't bad in the couple times I was caught in rain, but they're getting low and I'm considering PS4S or something a little less aggressive for my summer set up (running Mich Alpins for winter tires). I definitely want something that lasts a little longer than the Cup 2s, but don't want to sacrifice grip if I still want to hit a few HPDE days with them.

 

[Vertigyn]

Of the 4 HPDE events I've done with the AD09 - 2 have been in the wet. 1 a half day of wet and 1 a full day of really wet. And...3 of the 4 trips have included driving the 2 hours home in the rain. The AD09 did great in the situations I've been in. The only time they felt sketchy was above 85mph on the back straight of Sebring where the concrete pads have regular puddling/standing water in heavy rain. On the drives home - no concerns - even when overtaking cars on 2 lane roads while raining. I'd say they are a good tire for the rain, summer driving, and HPDE's. At this point, I would buy them again - but I also like trying new things - so we'll see when the time comes.

 

[TNEngineer]

Might be a near-universal three season tire for our cars given the temp range Yoko says the AD09 enjoys:

This tyre was developed using high performance compounds which become brittle at low temperatures, and therefore should not be used in certain condictions. The tyre thus must be stored or used only at temperatures at or above 14°F (minus 10°C) to maintain performance characteristics and to avoid any damage to the tyre or injury to persons or property.

Usually the usage temp is quite a bit higher than the storage temp.

Source: Yokohama: Summer

 

[M.U.L.E.]

Might be a near-universal three season tire for our cars given the temp range Yoko says the AD09 enjoys:

This tyre was developed using high performance compounds which become brittle at low temperatures, and therefore should not be used in certain condictions. The tyre thus must be stored or used only at temperatures at or above 14°F (minus 10°C) to maintain performance characteristics and to avoid any damage to the tyre or injury to persons or property.

Usually the usage temp is quite a bit higher than the storage temp.

Source: Yokohama: Summer

Damn, 14ºF! That alone might make me switch. That's great for those of us up north. I usually don't take my car out if it's below 40º at the moment.

 

[VL3X]

Might be a near-universal three season tire for our cars given the temp range Yoko says the AD09 enjoys:

This tyre was developed using high performance compounds which become brittle at low temperatures, and therefore should not be used in certain condictions. The tyre thus must be stored or used only at temperatures at or above 14°F (minus 10°C) to maintain performance characteristics and to avoid any damage to the tyre or injury to persons or property.

Usually the usage temp is quite a bit higher than the storage temp.

Source: Yokohama: Summer

Yeah, that's not bad! The Cup2s aren't to be driven or stored below 40°F IIRC.

 

[bboixtc]

Yeah, that's not bad! The Cup2s aren't to be driven or stored below 40°F IIRC.

Lol oops

 

[jalquiza]

I found that the AD09 were surprisingly loose on the street at only 50F given that their street and first lap grip at 65+ was so good. It’s possible that I totally didn’t see a spill somehow, but got a hard accidental power slide entering a ramp taking a friend for a ride last year.

Still a fan of these tires as all rounders though. Recommended 100% as street summers or drive-to track tires that you can run fast laps in all day without them crapping themselves.

 

[TNEngineer]

I've been reconsidering AD09's for the Evora GT, but think I'll stick with the ECS 02's to optimize just a bit for highway driving. Everything is a compromise but we do use the Evora more like the GT that it is, whereas nobody thinks of an Elise as a GT. Elise roadtrips are possible, we've done it, but the Evora is just better suited for that.

 

[barnable]

Looking at cup2 replacements for a fair weather street driven Evora GT and was focused on the ECS02 based on this forum. However, now thinking about the AD09 for more grip and better steering feel from stiffer sidewall.

Is tire life the only real trade off? Would AD09 get up to operating temps on the street to benefit from their higher grip?

 

[Kamber]

Looking at cup2 replacements for a fair weather street driven Evora GT and was focused on the ECS02 based on this forum. However, now thinking about the AD09 for more grip and better steering feel from stiffer sidewall.

Is tire life the only real trade off? Would AD09 get up to operating temps on the street to benefit from their higher grip?

I just got some AD09s in for my track wheelset and don't have personal experience with the ECS02 yet, but in your position I'd spring for the ECS02 if its a purely street driven car. I'm going to be getting a set of ECS02 in the future for my street wheelset. I personally don't think that the reduction in grip with the ECS02 will be anywhere near realizable on the street for the driving I do (ECS02 is already a fantastic max performance summer tire, and faster than the AD09 even on track in certain wet/cold conditions) and I prefer to have the tread longevity and wet-weather traction of the ECS02 on the street. If you're planning on hitting occasional HPDEs/track days and have only one wheelset for both street and track, that's where the allure of the AD09 would come in imo, as reports from users in this thread indicate they will clearly outperform max-performance summers on a dry track and are by all means very conducive to being a summer/fair-weather daily-driven tire if you need it to be.

 

[barnable]

Thanks for the input. I'll likely pickup a new set for next year so still a bit of time to consider. I'll put maybe 3500 miles annually so my preference is to wear out tires than age out.

I agree the rational choice is ECS02 but I'm tempted to try AD09 first since they'll be used up faster anyways. If I do, by the time AD09's are worn, the new PSS5's might be available in our sizes .

 

[Kamber]

Edit: whoops, double post