Jump to content
SAU Community

Different Rim Width On Gtr ? Advice Please!

Sinista32

By Sinista32,
in General Maintenance

 Share

Recommended Posts

Sinista32 Grand Master

Sinista32

Posted
Posted

Ok guys,

Would like the guru's to come out and tell me the impact of running a different rim width on a GTR.

Specifically I have a set of Panasports in the following trim and haven't had any issues. I bought my GTR with these rims in late 2003 and they were on my car until 2011.

Front - 17 x 9.5 +15

Rear - 17 x 10 +20

Tyres are 255/40/R17

I've heard not to run different rim widths on the GTR due to the attessa system ?

Why then does this work without issues ? Same tyre size I'm thinking.

Look forward to your comments.

Richard

Sinista32 Grand Master

Sinista32

Posted
  • Author
Posted

What do you mean works without issues?

I know for a fact my front drive gauge jumps all over the place with a different wheel on. Especially a spare tyre (fitted to the rear).

Not experienced this Owgasam. Gauge works fine, car drives the same and no Attessa light on (yes it works).

Wasn't until yesterday after measuring the rims I picked up the rim width difference. Fronts measured 25cm and rears 26cm. Close enough to 9.5 and 10.

I'll measure again today.

Rolling diameter is the same. 255/40/R17

And like you Terry Ive heard the same and my other sets are the same.

Owgasm Grand Master

Owgasm

Posted
Posted

Tyres are the same. But once you put them on a different size wheel.

Your rolling diameter will be out due to the stretching or bulging of tyre on different size rims.

There is a % of acceptance in difference, someone who remembers will come in soon. But most people just run the same all round.

Sinista32 Grand Master

Sinista32

Posted
  • Author
Posted

Same all round is obviously the easiest/best. Thanks Simon

I hope we hear % acceptable difference. I'm attempting to sell these rims in the FS section.

Better also do another more precise measure with a straight line today.

jiffo Mentor

jiffo

Posted
Posted

Don't fart about with manufacturer's rolling diameter tyre info, get the tape out and measure the circumference of every tyre.

Match them up side for side and put your largest circumference pair on the rear.

ATTESA can allow for some tyre wear.

As it's a 32 your transfer clutch pack isn't preloaded like later models.

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
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • DraftySquash
      Help Understand GTT Boost Setup

      By DraftySquash · Posted

      @Kinkstaah yeah I initially checked with Chequered as I've used them with a previous car. But they have stopped sourcing and installing Nistune chips. They only do tuning now. I did not want to pull out my ECU and send it away somewhere to have the chip installed. That would mean no driving the Skyline  
    • PranK
      My BMW E39 528i touring

      By PranK · Posted

      Should have checked that.  On the plus side, I got my Bluetooth adaptor.
    • TurboTapin
      🚨 Need Advice! Overcharged for Engineering Report 🚨

      By TurboTapin · Posted

      Each province differs a bit but we only do mandatory vehicle inspections here for heavy vehicles (Think Ford F350 and up). Those inspections are done by mechanics that are approved by the government. Besides that, it's a free for all as long as the car looks stock.  I asked because I love seeing how engineering differs from country to country. Here in Canada, all designs must be stamped and signed before they can be brought to fruition. (I.E Bridges, structures, Electrical panels, machines, literally everything shy of a wooden table) This can only be done by a professional engineer or professional engineering technologist. Both are protected titles, but the latter having more of a limited scope in what they can stamp. To become a professional engineer, you must complete a 4-5 year bachelors degree in your field of engineering, be part of an engineering order and undergo 4 years of apprenticeship, testing and mandatory continues education. Same story for engineering technologists, but a 3 year associates degree in some form of engineering technology will suffice. If you do not comply, or pretend you're an engineer or technologist, off to jail you go. If you stamp a design that fails, off to jail you go. If you stamp a design that fails and kills someone (I.E Bridge collapse) Off to jail you go for a very long time, your family will be ridiculed on the news, neighbours will surround your home with pitch forks and your dog will disown you.  Same for specialised trades... Example Electricians must undergo 1.5 years of post high school education, 4 years of apprenticeship, testing and hold proper licences. It's for the best, but then we also wonder why we're so short on engineers and tradesmen haha. We also have professional engineers who were only school smart but have no idea how a drill works. They generally go straight into management roles out of school which is also for the best. 
    • The Bogan
      🚨 Need Advice! Overcharged for Engineering Report 🚨

      By The Bogan · Posted

      Not currently, I'm at the school where we teach people to build bridges and other fun things that involve making, or breaking things
    • Kinkstaah
      Help Understand GTT Boost Setup

      By Kinkstaah · Posted

      I have a friend who has used Chequered Tuning and CMS. Went to CMS when Chequered had a long wait time which is kind of the norm (for good reason). Was very happy - I'm pretty sure the very simple thing you're asking will be simple.
×
×
  • Create New...