hrd-hr30
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Posts posted by hrd-hr30
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FWIW, Nankang has technology licencing and technical support agreements with Yokohama... That's from Yokohama's website, not Nankang's - they don't mention it at all. Who knows how much of their technology is involved with the AR1, but it was one of the factors that encouraged me to take the gamble on these $209 semis! lol I wouldn't be so quick to write them off before trying them.
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no, but your post did - you asked me a question (yes the Nankangs are road legal btw), then told me I hold "such a grudge".
NT01 are consistent, that's true. But you can't lose what you never had
AR01 could drop off at least a second over their life and still be as good as brand new NT01s. The soft compound Hankook Z221s when they had totally given up the ghost and were sliding around all over the place were still faster than the NT01s, but it was time to chuck them out as absolute garbage.
What the Nankangs do over heat cycles remains to be seen. I've had tyres that heat cycle really well and ones that deteriorate very quickly after a handful of track days, but I certainly can't tell which would do what from just driving on them once, let alone just from their brand name. -
lol Silly me! I thought I had real data having used both tyres on the same car. I defer to your "I reckon" and "I bet" guesswork based on never even having seen one of these tyres...
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DOT? We're not in America. These are DOT too:
NT01 have no load index rating on the sidewalls. They're not road legal in Australia. They're not CAMS approved either. They're not good for much at all really.
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1. They're the slowest semi money can buy.
2. They're not road legal so you can't even legally drive to the track on them which is a PITA.
3. They're not CAMS approved for production car classes.
You're better of doing very similar times on street tyres, or buying literally any other semi (other than R888
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That's a strange result for RSR v NT01... Normally not that far off the pace of NT01, which is pretty god for a non R comp, alot cheaper, road legal etc
First I've heard of RSR delaminating too. Tread splice opening yeah, but delaminating?
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I wonder how the NT01 in the same size would square up to the Nangers.
From what I'm seeing they perform well for you, but the adult in me is telling me to never buy Nankangs again because I'm not 18 anymore.
I'd never buy NT01s again! Better off buying RSRs.
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Tried the Nankangs out last week. Ran a best of 60.3 but that was not really representative of their potential - the admin people listed me as entering a Toyota Starlet instead of the Soarer that has been in their database for years, so I got put in a slow group with cars running over 15sec per lap slower!!! That's alot on a 60sec lap. I lapped that car twice in one session... As a result, I was only getting one or two clean laps each session to set a time.
Comparison to other tyres I've used - no car changes:
235 Hankook Z221 soft C70 compound 59.8
265 Nankang AR1 60.3
245 Nitto NT01 61.3
The rear doesn't stay quite as attached as the Hankooks did on the fast turn onto the front straight. Mid corner to exit they start letting go just slightly. Other than that they feel good. They should be a bit closer to the Hankook softs than those times were, but I don't think they're quite a match for them. That's still an awesome result for a tyre that's $209 per corner, compared to arguably the fastest tyre available!
Wear was very good. The only question mark over them is a strange circumferential line that's appeared around the center of each tyre - it's not quite straight. I don't know what it is. It runs the wrong way to be a tread splice. It's not from contact with the body as it's on all 4 tyres, and there's nothing to hit in the rear wheel wells. there's definite contact being made on the body in the front right - you can hear it in the left hander "Hungry" corner.
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Horner said the decision to go for super-softs instead of softs was made after Mercedes surprised Red Bull by opting for the ultra-soft tyre.
There you go. Seemed reasonably obvious. Everyone was surprised at Mercedes decision to use the UltraSofts and wondering what they were up to. Next minute there's a mix up with tyres in the Red bull garage... simple case of 2+2 I would have thought = caught off guard by Mercedes.
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yeah i suppose that's possible - either they just changed their minds for no apparent reason other than blithering indecisiveness, or in response to the unfolding situation in the race.
tough choice!
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an internal communication fcuk up on tyres had nothing to do with pressure from merc.
he initial explanation from Red Bull was that it was a miscommunication between the race engineers and the crew.“Unfortunately, a lot of misunderstanding and not the right communication,” Red Bull’s motorsport adviser Helmut Marko said immediately after the race.
“We will investigate and find out (what happened), but it was a human mistake. I feel really sorry (for Ricciardo). All we can do is apologise to him.”
The miscommunication boiled down to the team’s uncertainty over what tyres to use for the run home.
They had three compounds to choose from: Soft, Supersoft, or Ultrasoft.
The Ultrasofts were out; Red Bull’s engineers didn’t believe the new purple-sidewalled tyres would make it the 46 laps to the end.
Engineers were torn between the Soft and Supersoft. Initially, they went with a brand new set of Softs — the harder of the two choices — and instructed the mechanics to get those ready.
At the last second they changed their minds. Supersofts
what do you reckon caused that last minute change of mind if it wasn't Hamilton/Mercedes being so close and choosing the Ultrasoft???
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handed to merc.
after a brilliant drive from Hamilton and Merc's risky strategy put Red Bull under pressure, causing them to crack...
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nah, I just bought crappy $200 tyres to get a ready made excuse...
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The Nankangs are brand new. I'm sure there'll be more sizes to come.
Of course you're not talking time attack when you mention Hoosier. Time attack have to use semis. Hoosiers aren't semis, they're 2 groove 'cheater slicks'. The latest ones aren't even 2 groovers, just a few broken dashes. Not semis by any stretch of the imagination.
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yep, that's where I found them. My set arrived today. 265/35 R18 for the Soarer, so it will be a direct comparison vs:
245/40 Nitto NT01 - 1:01.3 Lakeside
235/40 Hankook Z221 - 0:59.8 Lakeside
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double
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No probs.
I'm about to take the gamble on new Nankang AR-1 semis. For the price they're worth a go. 80 treadwear. Feel nice and soft. Super strong sidewalls. I have a good feeling about them
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Edit the above post to include the following part from CAMS Schedule E -
"2. FOR SPEED EVENTS In addition to the tyres listed above: i) Any tyre that is certified and marked on the tyre wall with E-Mark, D.O.T or AS standards shall be acceptable for use in Speed events"
So while Hankook Z214 are not on the tyre list they are advertised by the maker as being D.O.T compliant. Thanks David for that info.
That's not what that means. Otherwise there would be absolutely zero point in maintaining the list of permitted Production Car tyres.
But Z214 are acceptable for use in speed events, just like full slicks are... just not in classes that require tyres from the Prod Car Tyre list
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go for it - horsepower is not what was lacking lol
maybe you could ballast up your 'heavyweight over 1000kg' Z to a 'lightweight by any measure' 1250kg? That should help!
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modern era is all pretty much the same- certainly for Schumacher, Vettel, Hamilton etc. If anything cars have been less reliable in the past few years than any other time in the last 30yrs! Similar season lengths, but that doesn't really matter anyway - consecutive wins carry over. And points don't come into it.
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well back on topic, I better not bring it to Bathurst - it's far too fast for the 2:40 time limit!
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Yes, those are my words talking up the capabilities of the MR2's chassis as I pointed out in response to you saying I was minimising my car's capabilities. So which is it now???
We've been through that Z car comparison you senile old man. The 3 old Zeds that have ever gone sub 60 seconds have all been with at least 240rwbhp in cars around 250kg lighter. MR2 has 180-200flywheel bhp and weighs over 25% more than any of them and has to use narrower tyres. So no, I can't beat them!!! No way in hell, let alone easily...
Also 2 of them had gumball slicks tyres and the other had massive 2 groove slicks and lots of aero.
All of them had lightweight panels and plexiglass.
My car won't get any of those things. It will be a totally different thing to any of those - a proper road car that you can drive interstate in comfort (as I've already done), drive to work, take for a cruise on some nice country roads while enjoying some music in climate controlled comfort. It's not a dedicated race car like those few Zeds which are the fastest competition cars of their kind in the country.
Your lap time prediction is utter nonsense.
In fact, the only thing crazier than your lap time prediction of 'easy sub 60s' is the fact it comes from a bloke who needs about three times the power and heaps of aero in a car weighing "over 1000kg" to ever barely managed to fluke one sub 60 lap! But s I said before, if 200flywheel bhp and 1250kg in a normal road car = easy sub 60s, stop wasting the mega dollars on your beast and go get a cheap stock MR2 turbo and enjoy the "EASY sub 60s". I mean, surely if it's easy, even you could do it?
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5 in a row is as many as Hamilton has ever managed!
And only 7 other drivers in history have won 5 or more in a row!
http://www.motorsportmagazine.com/f1/history/consecutive-wins-in-f1/
Now 7 in a row, equalling Schumacher and Ascari's record and only one other driver has ever in F1 history won more consecutive races - Vettel...
It has also put Mercedes 2nd in team consecutive wins, equaling Ferrari's 10, with Rosberg contributing more to that tally than Schuey did over Rubens. http://www.f1fanatic.co.uk/2016/05/02/mercedes-poised-to-equal-wins-record/
Team Wins First Last Drivers
McLaren 11 1988 Brazilian Grand Prix 1988 Belgian Grand Prix Ayrton Senna (7), Alain Prost (4)
Ferrari 10 2002 Canadian Grand Prix 2002 Japanese Grand Prix Michael Schumacher (6), Rubens Barrichello (4)
Mercedes 10 2015 Japanese Grand Prix 2016 Russian Grand Prix Nico Rosberg (7), Lewis Hamilton (3)
Red Bull 9 2013 Belgian Grand Prix 2013 Brazilian Grand Prix Sebastian Vettel (9)
One more to equal McLaren's 28yo record....
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...and you do minimumise the capabilities of your cars all the time...
hmmm, let's see:
My last street/track toy was the Soarer. $4500 it cost me about 4 years ago. Took it to a race track totally stock with nothing other than lowered springs and 18s, ran a 64.9 and immediately started a thread on another forum you're also on, titled "project sixty-second slushbox!". Yep, minimising it's capabilities right from the f**king start! So many autos run 60s! lol And Soarers are of course one of the most highly regarded bases for going fast easy. Man, I talked that thing down!
I also said from the start I wanted to take it to Mt Cotton because I thought the auto would be well suited to the hillclimb track and the car might have potential there. Went there with nothing more than BC coilovers and NT01s and immediately said I thought it could break the class record that was about 1.5 seconds away at the time - which is alot on a 47sec record! Always talking my cars down..
Before that was a 120Y I dropped a stock Bluebird engine into and threw together an oldschool drawthru carby turbo setup. Made a whopping 135rwbhp. It would be pretty hard to minimise it's capabilities! Most people thought it would blow up before it ever set a lap time...It was just built for cheap laughs because I love 120Ys for some wierd reason, and I really had no idea what to expect out of that car but I set the goal of 49s at Mt Cotton - that's what the class leaders were running at the time - in particular the FD RX7 twin turbo that was winning the class back then. Yep, minimised expectations again!
Before that was the 180SX. I bought that with the sole intention of going sub 60 at Lakeside after the re-opening - which had people scratching their heads at the time. It's still considered the holy grail to go sub 60 there now, and not many road cars drive there, run 60s and drive home. Let alone ones that get driven on interstate holidays, to and from work etc...
That's the last 7 years since Lakeside re-opened and I got back into motorsort. Not a whole lot of minimising my car's capabilities or expectations there, I don't reckon???
oh, there was also the RZ Supra I took to Lakeside, but I owned that well before Lakeside's surprise re-opening. You might still struggle to find anyone who's gone faster on KU36s than that car - how's that for minimising its capabilities?
I had to spend most of my time telling everyone it was fast because Toyota built a really good sports car that goes, stops and corners really well. Quite the opposite of their reputation at the time... Yep, minimising it's capabilities
Circuit Semi Slicks
in Motorsport
Posted
yes, it is odd for a tyre like the RS-RR to set similar times to a semi slick.
NT01s on the Soarer were only 7 tenths faster than the 595SS and Achillies Sport street tyres they replaced! It had less power back then with just stock intercooler and exhaust, so that gives a good comparison on their lateral grip abilities - or lack thereof... They were monumentally disappointing.
Swap to to proper semis and it was a second and a half faster than them - on a 60 sec lap that really only has 4 corners!
The NT01s worked OK at the hillclimb with the help of tyre softener. That's something I suppose...
What's wrong with the R888 besides being the same as the NItto? Nothing!