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265/35 sounds about right, 40 would be way too high profile

40 would be suitable for 255

I think I would have liked the 40, some of the roads up here are shit and I also think I might get a little softer ride on the 40s

Yokhama do recommend the 265/35s for the r34gtr

  • 1 month later...

Hey guys thought I'd share my 2c + a current issue I'm working on

32 GTST making 200hp
BC coilovers 10/8 spring rate. adjustable arms etc.

Running about -3 camber fronts and -1 on the rears other settings are fairly neutral
18x 9.5 and 18 x 10
235/40 and 265/35 - 123 semi slicks
150 and 200 each (got put on for free due to deal with buying new rims)
Street use mainly do spend time up the mountain.

Loved them heated up well nice and soft used to grip very well. Super predictable, like I'd come round a corner up the mountain and if I was going to quick it'd slide out for half a second grip up, bog down then fully slide out and by that time your more then prepared for it. and just power through and keep going. Road noise never phased me, so never really listened for it, weren't super loud. In the wet, like most semi's just need to be careful. They weren't really shit they did have some grip, I could drive around normally and feel comfortable about it just nothing excited. Obviously avoid puddles of water if possible.

The rears wore out before I heat cycled them and wore fairly evenly lasted maybe 3months of daily driving and a spirit run up mountain on average once a week. and a few piss poor skids.

The fronts I still have 5 months later. probably 30-40% now, but I'm certain they have heat cycled as they don't get anywhere near as plyable/soft or hot, only warm. This might be due to doing a track day few weeks ago where I started to melt them from lots of laps around QR pushing them.

Would defiantly buy the 123's again.


Replaced the rears with a set of 595 RSR's 285/30/18 paid 260 each fitted/balanced
First impression they looked a bit dirty/old but didn't think to much of them as the hype they have. went for a drive after I got the coating off and they seemed to grip up fairly well. but after a run up the mountain it felt as if they were gripping due to width not being sticky. Went for a hard run and got out to check the tires. Still firm and not even luke warm... Next day I went to the track (downshift circuit and coffee) and pushed them for what my car could I found the corner at the end of the back straight I could do flat to the floor in second shifting to third 2/3 through the corner not any signs of loosing grip (do remember I only have 200hp) After a hour of bashing around, keep in mind I couldn't go fast constantly as you got people who do 40 in corners then want to bash down the straight then 40 next corner. They were only warm and sort of plyable, nothing like my 123's were.

Ended up checking the date on the side (3312) 33rd week of 2012? which makes them 2yrs and 16weeks old or something... Or am I wrong? So Went for a drive last night and thought I'd try doing a skid to heat them up. Well it worked. they got sticky it was like half set glue, tacky but still hard and not plyable/soft. Where as the 123s didn't get like this. Drove on them while it was sticky like this and they were unreal so sticky the grip was great but I couldn't keep the heat into them even pushing the car around the mountain.

Oh and My RSR's are f**kING HOPLESS in the wet. I actually have to take it easy and be careful around corners. I cant start on any hill without sliding the whole way up. regardless of how easy I breath on the gas or slip the clutch or anything.

So coming to the conclusion that the RSR's are old stock thus not as good as they should be/started to go hard.
285/30 is to wide of a tire for my car/power/application for what I'm using the car for thus unable to generate the heat required.
Or do they come in different levels of compound soft/medium/hard? and I've just got a hard set suited for heavier cars?

I'm no race car driver and only just getting into the whole grip based thing so still learning and experimenting. Any info/tips would be greatly appreciated.

Thanks
Chris

They come in one compound. They are a performance street tyre. Not a true semi slick.

I experience nothing like you on my rsr's. I find I overheated them at wakefield and they became a bit greasy.

Maybe your issue is tyre pressure.... How much pressure are you running?

Did you buy them from a reputable tyre dealer (should have been stored properly) or from someone who didn't get around to using them (may have been stored in the shed and thru summer heat).

Otherwise what is the date of production stamped on them? (the oval circle with 4 numbers inside indicating week of the year manufactured and the year of manufacture)

i.e. 2709 = 27th week of the year (July) and '09.

Generally tyres can be kept for up to 5 years without any reduction in traction ability unless they are stored in an overly hot (40degree+) or cold (0 n below) environment.

As far as pressures go it can vary what works best for the tyre but often around the 32 mark is the best for hard street driving traction iv found for 35 profile tyres (of course at the detriment of tyre life and even wear).

Bought them from Tire City at Northgate (Brisbane). And I'm in no way trying to bag them. Great bunch of blokes, just looking for answers/my own knowledge.

But yeah 3312 is the date on them and they did look dirty. A lot of there tires are stored just in the shed they work in so haven't a clue if they'd be stored correctly or not.

I've found that 32psi is about right with tire role when looking at the little indicator arrows on the side. think that's what they are for?

Just got Momo tyres put on the rear of my r34 gtt, 255/35/18, 50 kms in and they feel pretty good even though it was pissing down rain, fark they are quiet though, quietest tyre I've seen... still too early to say much though but I'll keep yous posted.

  • Like 1

Bought them from Tire City at Northgate (Brisbane). And I'm in no way trying to bag them. Great bunch of blokes, just looking for answers/my own knowledge.

But yeah 3312 is the date on them and they did look dirty. A lot of there tires are stored just in the shed they work in so haven't a clue if they'd be stored correctly or not.

I've found that 32psi is about right with tire role when looking at the little indicator arrows on the side. think that's what they are for?

they are not overly old then. If its in a shed that is their workshop then should be fine (nobody wants to work in a 35 degree+ space if they don't have too)

no the little arrow is to point at your tread wear indicator (little bumps in the tread grove that indicate when the tyre is no longer legal if the bump is level with the tread).

And yeah, iv found 32 to be the sweet spot for grip on lower profile tyres that ask for standard 38psi. Tyre life will be reduced tho.

Otherwise, your spring rates are pretty stiff for the street and im not surprised you are struggling to get grip, particularly in the wet. I bet it slides pretty sweet tho? :P

Beyond this, isn't it federal 595's that have the bad name as far as performance goes? Look thru this thread and see what others have to say.

Edited by jjman

It's usually the 595 super steel or the old 595 rs that get the bad wrap.

As far as 595 rsr go I have not heard of anyone having such a bad experience on a brand new set including myself

The tread blocks like to crack, I have a crack in mine.. so does my mate's car..

If you google, you'll find a few.. here's an example:

http://www.cliosport.net/threads/federal-rsr-595-tyres-falling-to-pieces.667455/

http://www.mx5nutz.com/forum/index.php?showtopic=79006&page=2

http://www.pistonheads.com/Gassing/topic.asp?h=0&f=18&t=1177101&nmt=Another+Track+Day+tyre+question

However great POV spec tyre that is streetable and then ok-ish on the track... however for the same price(ish) I would go Nitto NT-05

again, ive had maxxis maz1 on a 250rwkw hsv. heavy ass whale. cost me 150 a tyre in 18 inch, exceptional in the dry and brilliant in the wet.

take them over any linglong, falken or federal.

I'll need some new tyres soon. I'm after something that is similar 'looking' to nankang ns2r, hankook rs3, nitto nt05.

Does anyone know of anything else that's similar that's up to $200ea? Where can I buy ns2r's?

I'll need some new tyres soon. I'm after something that is similar 'looking' to nankang ns2r, hankook rs3, nitto nt05.

Does anyone know of anything else that's similar that's up to $200ea? Where can I buy ns2r's?

I wouldn't bother with NS2-R, mine fell to bits and had zero grip until they were boiling hot - useless on the street and dangerous in the wet.

Is it for a daily car or track work?

I wouldn't bother with NS2-R, mine fell to bits and had zero grip until they were boiling hot - useless on the street and dangerous in the wet.

Is it for a daily car or track work?

It's for a daily but I also like to have fun and I'm now close to Wakefield, so maybe a few track days per year.

Tyres are the biggest let down on the car, I don't need anything amazing but I would like some decent grip when I want it. And also a decent width between tread on the sidewall. For some reason I have a fetish for this :/

I won't bother with the ns2r's but what tread wear type were you using?

  • 2 weeks later...

It's for a daily but I also like to have fun and I'm now close to Wakefield, so maybe a few track days per year.

Tyres are the biggest let down on the car, I don't need anything amazing but I would like some decent grip when I want it. And also a decent width between tread on the sidewall. For some reason I have a fetish for this :/

I won't bother with the ns2r's but what tread wear type were you using?

I was using the harder compound (street?)

Definitely wouldn't recommend as a daily tyre. You'd be better off with something like Michelin PS3, Goodyear F1 Asymetric, Toyo T1 Sport etc etc, all excellent daily tyres that will give you some fun on the track too.

Any tyre that's going to grip well and cope with heat on the track isn't going to be overly appropriate for a daily tyre too.

  • 1 month later...

Looking for some decent tyres for my gf's car - she goes up in the hills a bit and with winter coming i want something good for her. budget $7-900 for a set.

Was looking at these from tirerack

http://www.tirerack.com/tires/surveyresults/surveydisplay.jsp?type=UHP

Dumlop direzza dz102 or maybe even Kumho SPT (ku31) or the firestone firehawk ?

thanks

Just went from R888 to A050 and although I've not done many klms on them, and nothing overly spirited, they've impressed so far. Based on IPRA results the A050 is a least 1 to 2 seconds a lap quicker than the superseded A048.

Goodyear F1 Asymmetric 2 on the track, ok but not brilliant. At one stage I overheated the tyres and they got quite greasy, had to back off. On the street I've been happy with these.

Edit: 235/45R17 @ 275rwkw

Edited by V28VX37
  • 1 month later...

Hi Guys,

I have falken 452's all round but need new fronts to pass rego as they are super worn. I can see a lot of positive comments for the yoko AD08R. My car is strictly street use and does not get driven too hard, but i do drive in dry and wet conditions. Are these OK or better off getting something else like toyo t1's?

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