Jump to content
SAU Community

Recommended Posts

  • Replies 43
  • Created
  • Last Reply

Top Posters In This Topic

Top Posters In This Topic

Posted Images

Has anyone looked into the Falken FK452s for the GT-R? They are 255/35 and 285/30 resulting in overall diameter of 680 and 687 mm. Apparently they won a recent wheels tyre test. They are lower profile than standard though. If theyre cheap and as good as they say they are then they may be a good option.

You could also match up their 305/25 with their 255/30 fronts for an identical diameter of 661mm however I'm not sure this would really help the balance of the car.

Edited by fungoolie

A couple other questions:

Does the lower sidewall height on the lower profile non run flat compensate for the stiffer sidewall on the taller runflat? I'm just curious as to how this will affect the ride/handling. If you were too look at this 30r/35f profile combo instead of the 35r/40f you suddenly jump up from having a choice of about 4 road tyres, Bridgestone, Dunlop, Pirelli, Michelin to about 40 on the tire rack website.

Does anyone know what rolling diameter difference front/rear the GT-R can handle?

Going down this route for a daily driver gives me the ability to buy a 300 to 500 treadwear tyre for prices ranging from US$119 to US$250 compared with US$400 for the Dunlop and Potenza standard runflats.

Also any thoughts on what your insurance company may say if you change to non run flats?

Thats why the base model GTR IE less run flats, leather trim and bose is lighter, but the manual says its only 10kg lighter.

Base model has run flats and leather. Only the bose is missing and they replace it with crummy gear which probably weighs very similar amounts.

My JDM base model 2008 doesnt have run flats or the full leather trim.

What did they replace the standard Bridgestone or Dunlops with when they brought it in? There is no GT-R model without full leather. Where is there non leather in your car?

  • 1 month later...
any issues running these directional tyres backwards on a perfectly dry track?

QR is trashing my front left tyre.

I guess I am lazy and dont wont to swap the tyres on the wheels unless I have to.

Mark, we've run a few r-spec tyres backwards in the dry with no problems, to get a bit of extra wear from them. Also, changing topic a bit, with the michelin slicks, i dont believe they are directional (some slicks are) and the porsche guys tell me you can even flip them on the rim (despite there being an outside and inside, the outside merely has a rim protector on it).

  • 1 month later...
Our Toyo 888 test tyres have arrived for the Willall GTR.....let the testing begin :(

Hey Martin, any update on the R888 test?

I hope you are looking after Trent. He has something special coming for my car I believe....

  • 2 weeks later...

well after 30-33 5 x hot lap sessions at QR, the Toyos looked to be shagged.

with the COBB stage 2 tune I managed a 57.68 on the sprint today on the toyos. I reckon they are at least as good as the Dunlops

will be going out on the track with 18's next time and either second hand michelin slicks or RE55. have the slicks here so not sure if I will buy the RE55's - they aint cheap!

  • 2 weeks later...
  • 3 weeks later...

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



  • Latest Posts

    • Cheers. Skyline is back on the menu, can’t get rid of it. It’s like a child you don’t want, or herpes 
    • I got back to Japan in January and was keen to get back on track as quickly as possible. Europe is god-awful for track accessibility (by comparison), so I picked up a first-gen GT86 in December just to have something I could jump into right away. The Skyline came over in a container this time and landed in early January. It was a bit battered after Europe, though—I refused to do anything beyond essential upkeep while it was over there. The clutch master cylinder gave out, and so did the power steering. I didn’t even bother changing the oil; it was the same stuff that went in just before I left Japan the first time. Naughty. Power steering parts would’ve cost double with shipping and taxes, so knowing I’d be heading back to Japan, I just postponed it and powered through the arm workout. It took a solid three months to get the car back on the road. Registration was a nightmare this time around. There were a bunch of BS fees to navigate, and sourcing parts was a headache. I needed stock seats for shaken, mistakenly blew 34k JPY on some ENR34 seats—which, of course, didn’t fit—then ended up having the car’s technical sheet amended to register it as a two-seater with the Brides. Then there’s the GT86. Amazing car. Does everything I want it to do. Parts are cheap, easy to find, and I don’t care what anyone says—it’s super rewarding to drive. I’ve done a few basic mods: diff ratio, coilovers, discs, pads, seat, etc. It already had a new exhaust manifold and the 180kph limiter removed, so I assume it’s running some kind of map. I’ve just been thrashing it at the track non-stop—mostly Fuji Speedway now, since I need something with higher speed after all that autobahn time. The wheels on the R34 always pissed me off—too big, and it was a nightmare getting tires to fit properly under the arches. So I threw in the towel and bought something that fits better. Looks way cleaner too (at least to me)—less hotboy, less attention-seeking. Still an R34, though. Now for future plans. There are a few things still outstanding with the car. First up, the rear subframe needs an overhaul—that’s priority one. Next, I need to figure out an engine rebuild plan. No timeline yet, but I want to keep it economical—not cutting corners, just not throwing tens of thousands at a mechanic I can barely communicate with. And finally, paint. Plus a bit of tidying up here and there.  
    • Nope, needed to clearance under the bar a little with a heat gun, a 1/2" extension as the "clearancer", and big hammer, I was aware of this from the onset, they fit a 2.0 with this intake no problems, but, the 2.5 is around 15mm taller than a 2.0, so "clearancing" was required  It "just" touched when test fitting, now, I have about 10mm of clearance  You cannot see where it was done, and so far, there's no contact when giving it the beans Happy days
    • It's been a while since I've updated this thread. The last year (and some) has been very hectic. In the second-half of 2024 I took the R34 on a trip through Germany, Italy, France and Switzerland - it was f*cking great. I got a little annoyed with the attention the car was getting around Europe and really didn't drive it that much. I could barely work on the car since I was living in an inner-city apartment (with underground parking). During the trip, the car lost power steering in France - split hose - and I ended up driving around 4,000kms with no power steering.  There were a few Nurburgring trips here and there, but in total the R34 amassed just shy of 7,000kms on European roads. Long story short, I broke up with the reason I was transferred to Europe for and requested to be moved back to Japan. The E90, loved it. It was a sunk cost of around EUR 10,000 and I sold it to a friend for EUR 1,500 just to get rid of it quickly. Trust me, moving countries f*cking sucks and I could not be bothered to be as methodical as I was the first time around.
×
×
  • Create New...