Jump to content
SAU Community

Recommended Posts

Hey guys great thread. I have had a look but would like some recoomendations as to what numbers to use on my R33 GTS-t. This car will be used predominantly on the track and I prefer 17" wheels (thinking of Rota grid, or P45R or something similar). Im also thinking of going with a staggered set up (9-9.5 rear and 8-8.5 front). I want to run some nice wide tyres also. Questions is, what do those who do track days recommend from their experience?

Cheers

Amir

Hey just want a quick answer. Going to buy a set of Lenso D1R's for my daily R33. Would 18x9 +32 (Front) sit flush in the guards

18脳10 +22 (Rear) sit flush in the guards

Or what issues am I gonna get

Just like to hear some feedback to help me out.

Edited by WLD MAN

Assuming Gtst. Fronts will sit inside about 10mm, and rears outside about 15mm. This depends heavily on camber though. I have 18x10+38 which after resetting camber to 0 now sit flush, maybe the tiniest bit of poke, whereas previously looked like they had heaps of room.

12mm wider rim, so 6mm either side. But 8mm larger offset, so will sit in 2mm more than 18x9+32.

You'll also have clearance problems on inside with offset larger than around +25 with 9.5" wide rim.

Best if you learn how to calculate offset, or use a calculator on the net.

My recommendation would be to use 18x9.5+22 with 235s and roll guards to fit. Not too difficult or expensive and proven to be a good combination for 33 gtst.

  On 06/08/2014 at 3:14 PM, WLD MAN said:

Yeah it is a gtst. Thanks for your help...if i went 18x9.5 +40 in the front, would that sit flush with guards?

The lower the offset the more likely it is to get to flush

  On 06/08/2014 at 2:05 AM, Abdul11 said:

Hey guys great thread. I have had a look but would like some recoomendations as to what numbers to use on my R33 GTS-t. This car will be used predominantly on the track and I prefer 17" wheels (thinking of Rota grid, or P45R or something similar). Im also thinking of going with a staggered set up (9-9.5 rear and 8-8.5 front). I want to run some nice wide tyres also. Questions is, what do those who do track days recommend from their experience?

Cheers

Amir

I went for a staggered set of track rims last year (17x8.5 +30 front and 17x9.5 +38 rear) but changed to a square setup this year (17x9 +35 with 255/40 tyres) for the increased frontend grip and being able to rotate the wheels around the car as they wear.

  On 10/08/2014 at 10:30 PM, DekA said:

I went for a staggered set of track rims last year (17x8.5 +30 front and 17x9.5 +38 rear) but changed to a square setup this year (17x9 +35 with 255/40 tyres) for the increased frontend grip and being able to rotate the wheels around the car as they wear.

Similar to what i have done, just with 18's :)

  • Like 1
  On 11/08/2014 at 11:30 AM, KerrodR33 said:

What's a good offset for Rota Grid Rs in 18x9.5 all round on a 33 gtst? Thinking +35 all round. Will only go as far as rolling my guards.

Cheers

I think heaps of people run +22 all around with little tyre. Might want to check front clearance before you go putting money down.

  On 10/08/2014 at 10:30 PM, DekA said:

I went for a staggered set of track rims last year (17x8.5 +30 front and 17x9.5 +38 rear) but changed to a square setup this year (17x9 +35 with 255/40 tyres) for the increased frontend grip and being able to rotate the wheels around the car as they wear.

Did you notice any oversteer with the square setup?

Cheers

Amir

  On 11/08/2014 at 1:33 PM, Abdul11 said:

Did you notice any oversteer with the square setup?

Cheers

Amir

Didn't notice a difference in oversteer with that change. Your suspension setup, alignment and how you drive the car will affect that.

  On 11/08/2014 at 10:23 AM, Tamorus said:

Skyline model = R33 GTS-T

Wheel diameter = 18

Wheel width = 18X9.5 Rear - 18X8 Front

Tyre size = 255/35/18 Rear - 235/35/18 Front

Modifications to fit = Guard Rolling

Offset? Photos?

  On 11/08/2014 at 1:27 PM, dontyellpl0x said:

I think heaps of people run +22 all around with little tyre. Might want to check front clearance before you go putting money down.

Agreed, you'll definitely run into inner clearance issues with +35.

Honestly, if you're willing to roll guards just get +22 with 235/40/18s and be happy. I didn't get 9.5 +22 and sometimes wish I did.

Im thinking of getting 17x9 +25 for my r33. The guys at Rota recommended this and said the widest tire I can run would be a 255. They also said I will have better clearance with +25 than with +35.

Does this sound right to you guys?

Cheers

Amir

  • Like 1

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



  • Similar Content

  • Latest Posts

    • Hi Rob It's a nistune ecu. Yes same shop, good reputation. Apparently the computer on the dyno is compensated for temperature.    Chris was saying that the lean or richness of the mixture would be covered in the actual tune, but he's already picking up in advance that it's under what it should be. Regards the dyno, it's also noticeable on the road. But I just want to add something that has just come in, it appears there might be something in the setup of the external wastegate. In the exhaust manifold there is a centre divider between the front three and rear three cylinders. The external wastegate has a pipe from each side that join at the wastegate. Theory is those two pipes just might be pypassing that divider and introducing a problem somehow. Is anyone familiar with the divider in the exhaust manifold and the effects if the two wastegate pipes were to create a bypass path? Thanks for your questions Rob, interested in your thoughts on this external wastegate bypass theory. Regards Rob
    • Meh, At 60 years old, I have been doing dumb stuff for much longer than you mate, I am the true King And unfortunately I cannot be a maroon, as I am not brownish red As for not getting ITB's, the plenum intake will apparently show typical gains across the board and increase induction noise a bit, but, have all over less dort than ITB's Cost difference for the extra ITB dorts was significant though, the total parts for the plenum set up is "around" $2kAUD plus shipping, the ITB's were $4kAUD plus shipping, I was contemplating really hard about paying the extra $2k for all of the dorts, but weirdly, some form of common sense, from listening to the platform experts prevailed  As for the NA mod hate by some, I've had a few boosted cars, with all their inherent issues, I'm now looking at simplicity and legalities for a street car, maybe I'm just getting old, and I'm quite happy to spend some of the kids inheritance, 5kw at a time 馃ぃ And think of all the money I'll be saving on consumables that something with boost needs, like engines, gearboxes, diffs, clutches,  tilt trays... etc. etc. etc. 馃お
    • Haha.  I wouldn't say I am either but I've definitely been around it plenty.  I'm guessing you know the dial in is basically to make a handicap to level the playing field between racers.  The car with the slower dial in goes first and in theory if they run their dial in time and the faster car also does then they cross the finish time if they also have exactly the same reaction time - if you go faster than the dial in them you lose, but if you are too slow there's a good chance the other person will get to the finish line first. I'm normally supporting other cars but they were all pretty dialled and were egging me on to race as well, here's one of the cars I tune (Starlet) which ran within like 1 hundredth of its dial in through the competition: https://www.youtube.com/watch?v=inEBu-d9Gn4&t=69s
    • Where ever the fuel reg gets it reference is what I use to T into for map reference been a very long time so where it goes to plenum/runners I have no idea but never had issues. 
    • What ecu? Same shop every time? Same ambient temperature? If timing is correct then pull plugs and see if lean or rich. Dyno can also read different if they have changed ramp rate or not set tacho/speed properly  
  • Create New...