just found this, around a g of cornering force and the tires didn't really screech that much.
gets louder as he exceeds 1/1.2 or so haha

btw my friend quite interested in the hankook, what size you got and how much you got it for per piece?

ah ok thanks for the info

eh review on speedfest experience put on hold a bit, work etc, lacking time to write lol.

anyways yesterday was on the turn in towards duta flyover from jln kucing (it'll pass by solaris dutamas with all the government buildings/quarters etc)

as i was speeding around 100-110km/h approaching the sharp'ish corner (most stock standard car can easily go through that corner at that speeds while still maintaining on a single lane) the vehicle in front was a little slow so i had to hard brake a bit (unable to overtake too as both lanes are occupied pretty much, and it'll be left lane overtaking which is wrong anyways) and somewhat expected, warning signs/instincts popped up that my rear's about to slide.

funnily enough, instead of cadence braking and counter steering back to slow down + straighten the car, i instead had the gut feeling to check my side/rear mirrors, confirmed that the whole 2 lanes are clear. at this point, it's as if the tires are telling me: "this is nothing, keep going!" and so, i listened - gradually increased the throttle, the rear swings out further, and i'm basically going side ways with my car occupying 2 lanes and i'm looking ahead at my passenger side's a-pillar.

this only lasted a short mere 3-5 seconds or less, at around 90km/h or so, but DAMN the adrenaline rush!
as i slided further on the left lane (again, that fly over only have 2 lanes), the car on that lane is faster than the car on the right where i was initially at when i started to slide and was pulling away leaving a gap between himself and car on the right lane.
in the end i basically slide out to the left lane, and counter steered myself to straighten the car as i cut in to the right lane finally exiting the fly over into duta highway.

that was just... fun. REALLY FUN!
even until the next day (today as i am writing this) i couldn't believe what i have done and it was a pity i did not have it all recorded down. even unbelievable was that the confidence that was instilled within me, it would have never happen EVER on other tires even on the Achilles 123 semi slicks i used to had.

thinking further it could be actually scary, as it's probably a matter of time before i got too over confident and got myself burned for it
well, let's hope that is not the case then

This post has been edited by Quazacolt: Aug 20 2013, 09:27 PM

surprisingly, not very loud at all. it is however louder than the c drive 2 especially over 100km/h.

bumpiness, not much, however again, bumpier than the c drive 2 especially when you're doing high speeds

just paying the respect it deserved for being Yokohama's flagship tire
and yes, these tires are very confidence inspiring and it makes driving even on a simple Malaysian road ever so exciting.

All this even on a measly Proton 1.5L 3speeder auto iswara

Long time overdue, however here goes probably my last writeup for these tires
18th August 2013 - Speedfest @ Elite speedway USJ track day

To be honest, i was actually pretty nervous how they would perform, especially with the autocross obstacles (360 turn, slalom, and figure of 8) which would definitely mean eating grass considering my car's turn radius. A bit worried if the tires would get unnecessary wear or even damage from the non tarred terrains.

"I guess no point worrying about them for now eh?" Is what finally calmed me down a bit since I'm more of a do first think later guy

Results picture for reference: http://twitpic.com/d8xvi2
Not bad eh? I'm the first in the list being the only Iswara, and considering i'm the ONLY automatic car (do correct me if i'm wrong btw) out there among all the 4G1x veterans
Suggest to pay attention/remember to the lap times while going through the write up.

First run, going slow on the throttle just to get familiar with the course - passing the first corner, not bad, no tire squeals unlike the C drive 2 rofl! Everything is going accordingly until the first obstacle which is the cone to perform the 360. So yeah, slow down, gave a go with left foot braking (since i've read that it's effective way for FF automatic cars to handle tight corners) and... no good. Even with sub 20km/h, steering on full lock turning, i still had to dine on grass.
And since it's pretty much my first serious attempt at left foot braking, let's just say it didn't turn out very well. Pretty similar experiences throughout the slalom/figure 8 with less grass i guess.

After the last obstacle is done, that's where the real fun starts. On most of the corners, the grip surprisingly (especially the rear) doesn't seem to be top notch, at least when compared to the previous Achilles 123 I've had. It still tends to give a mild slide whether i want to or not. Ironically, left foot braking was supposed to slide my car so i can apply more throttle when it straightens out/exiting corner. That was actually the opposite and i actually had more grip this way and the balance was thrown off somewhat as the car's rear skipped/bounced (sort of a want to slide, but cannot slide scenario).

On second lap, i was still determined to give left foot braking another go. First 360, probably botched it and the car almost came to a full stop. Actually confused/panicked a bit while i was pondering how the hell i work with left foot braking and in the midst of it i actually went a 2nd 360 - bummer lol.
After the obstacles however, i eased on the throttle/brakes, let the car slide on it's rear. Surprisingly, it worked out for the better! Almost as if the car/tires are telling me THAT's how it should be driven, and with the feedback/progressiveness from the tires, it's as if it is telling me when i should apply/increase my throttle as i exit the corner. Surreal.

3rd lap (and if you've checked out the earlier picture, that is my best lap for the day.) in, pretty much gave up left foot braking, course familiarized. If there is any better time to set a good time, this is it.
Many fun slides were had, the tires barely made much noise until the going further into the slide/the moment throttle was applied/increased/corner exit. It's as if the tires, and no doubt me - the driver was having a damn fun ride of our lives!

4th lap, using my experience from previous track/speedfest, and of course many advises from the veterans to monitor the tire's air pressure and release as needed - They were about 40psi front AND rear, from 32psi all 4 prior to the 3 laps and yes, i reduced them to 32. As the air was released, it was really REALLY hot and was very unpleasant throughout the whole process. First corner in, the grip is vastly improved, almost on par if not even better than the Achilles 123, however the feedback was just not as prominent/sharp as it was before! If there was a way to describe it, it was as if the tires was throwing a fit/mad at me and stopped talking! After the obstacles and into the series of hairpins/S corners, the rear was wanting to slide, however due to the increased grip it just couldn't and was stuck in a fit of "trying to slide it's rear out but just f***ing couldn't".

Wow bummer, who would've knew that releasing the air pressure would backfired on me!
But yeah after the track run i've done my own logics/conclusion with inputs/discussions from the veterans, it basically was:
- Every tire has their optimal air pressure and heat range - The AD08R was definitely a tire enjoying heat and higher pressure
- The higher air pressure would meant the middle grooves being utilized more, and come to think of it, the tread in tread and fiery patterns are ALL focused on the middle. Hence the reduction of feedback when the tire's hot air pressure was released.
- Higher air pressure also reduces rolling resistance, and with the new Orange oil compound in the AD08R that also EMPHASIZED on rolling resistance, this is probably one of the major factor that helps reduce lap times.
- While sliding in a track is probably not a good way to make good lap times, the rear suspension and handling characteristics of the Iswara probably requires such utilization of slides in combination of a good throttle steer/corner exit. Sounds ridiculous, and definitely unorthodox, however that's how the veteran iswara drivers does it, and i have no doubts on their experience over mine which definitely tallies anyways.

Well, realizing a bit too late, and i don't suppose just the air pressure is enough even if i were to go to the nearby Caltex station to refill air pressure since the heat probably plays a role too as the tires heat up VERY FAST (experience from touge runs/downhills, and of course the prior 4 lap experiences).

So yeah, 5th lap's results is well within expectations, nothing special about it.


======


After the track run, i noticed some very interesting wear pattern, should definitely do re mount flipping rotations as well; Notice the tread in tread! http://twitpic.com/d94paa

it's like f***ing magic weih, how they still maintain the tread in tread patterns after the damn thing is worn down ROFL
(a quick guess is some kind of layering cast technology?)

The tread in tread patterns isn't as prominent now however it IS still there even after a long while after the track day and driven on the road ever since (the NVH wasn't that bad at all, and humans are very adaptable creatures after all) since i haven't got around to wash my old rims/tires, and respray some chipped/cosmetic defected spots.


=====


Overall, these are really great tires that just boosts one confidence sky high. And i'm not sure if it's just me, but there's always a constant strong urge to find a corner and tackle it. even a slow turn in junction under 20km/h, the tires kept beckoning me tackle, f*** the brakes and just throttle!

I don't think i've ever experienced (much less own) a tires that communicates so well with me and in a way, teaches me how to drive car. Very strange indeed right?

Hope you guys enjoy the reviews/write up so far, and perhaps it may convince you guys to give these tires a shot despite the very expensive pricing compared to other makers.
That's it folks.

listing more notable ones:
personally own = conti cc1 (listing them because included these in my NVH review)/yokohama c drive 2/achilles 123/yokohama ad08r
(omitting those entry ones such as yoko a drive/silverstone m5/sime/dunlop etc)

driven/sat in cars having = michelin xm2(seriously overpriced, might as well ps3)/michelin ps3/Goodyear GSD3/conti cc5 (oh boy these tires... well daily ride's ok i guess)

planning on next change would be Nitto's neogen for my daily ride
haven't overlapped any tire models/selection before, goal would be to try out as many good tires as possible

here you go:
https://forum.lowyat.net/index.php?showtopi...post&p=48254799

hope you enjoy

new video linked by dares

no issue for me bro, maybe got leaks?

from my very limited experience (as i never personally whacked with the ps3 on wet nor have i owned it) and based on most reviews/benchmarks/tests etc, it is better

not sure how it fairs against the legendary GY AS2 on wet though

i haven't close the bulk, from my signature

have you used the tire before?

do bear in mind this is NOT a semi slick tire, and tire rack have made their benchmarking before:
http://www.tirerack.com/tires/tests/testDisplay.jsp?ttid=172
http://www.tirerack.com/tires/tests/chartD...ay.jsp?ttid=172

umm, you do know that when top of the line gets replaced typically a lot of changes will be made, right? and you're basing your ad07 experience as rebuttal?

somemore it's technically TWO generations of replacement (ad07 > ad08 > ad08r), where by even the ad08r is somewhat different compared to the ad08, where tirerack's reviews/benchmark echoes: wet wasn't good on the 08, but it all changed with the new compound which as their orange oil formula in it

it is to the point where dry traction is toned down where by i KNOW of ACTUAL USERS IRL that are NOT satisfied with the dry performance on track (sepang, btw)
of course, he factored in pricing which isn't exactly all too fair since for the same price you can get semi slicks such as R888 which will destroy the ad08r that isn't even in the same category (A048/A050 if you want a fair comparison, or Toyo's R1R against ad08r)

at this point i can't give you the answer for post 10k km since my tire usage is only in the 5-7k km range (i swap my tires on and off for my daily ride comfort tires) been using them since august.
maybe after my tires are definitely >10k km and/or at least 50% worn, and there's open track days in wet/raining condition i'll DEFINITELY write back

i got 2 set of rims with tires, no air tools, only hand tools although i tend to goto workshop to do my changing as i typically change the rear springs as they are shorter/stiffer than my regular HNR progressive springs

my comfort ride at the moment is yokohama c drive 2
finishing soon, should be going with nitto's neogen.

phobian
so what do you think?

disappointed? or exceeded your expectations?

so far there is in fact 1 guy i know who's disappointed with the tire... mainly pricing issue as he compared it against semi slicks

here's the thing:
a lot of semi slicks are cheaper than the ad08r, and as a matter of fact (being semi slicks lol) it grips better than the ad08r.

so it comes down to: "why pay more for poorer grip?"

fully agree with your views/opinions.

although just one thing i'd like to point out, even on the larger sizes, most semi slick brands (not the bigger boys like dunlop/bfg/yokohama/bridgestone/pirelli etc) are STILL cheaper than most extreme performance from the major makers

don't know how the rest of the world does it, but Japan has this thing to market their top of the line/flagship at VERY premium prices, at very limited supply (to create a "high demand" ) and see, it sells and it gets people wanting for more because it is "limited".

no reason to lower pricing when everyone sells around the same price and people are still buying it.
the only reason why the ad08r is much lower in price probably due to natural (and probably cheaper) ingredient - orange oil.
and perhaps they want to go really aggressive in gaining momentum slipped during the ad07/ad08 era. they are REALLY aggressive in marketing all around the world, particularly japan/SEA/Australia regions with numerous invitations to bloggers/media etc to experience/review their tires. (which is unheard of on other makers)

to us consumers - it'd only mean good as the competition gets tougher. we get better tires for cheaper price

holy shit that time for sepang?