Jump to content
SAU Community

Rims For R33 Gtr For Street/track Use (light Track Use)

some_cs_student
 Share

Recommended Posts

some_cs_student Veteran

some_cs_student

Posted
  • Author
Posted
+18

The clearance from stut housing to the inside of the wheel will be 6mm MORE

The outside edge of the wheel will EXTEND an extra 18mm

This is based off of a stock 17x9+30 I would go the 17x9.5+18

Yes I found that calculator later yesterday, 17x9+38 wouldn't work as it would probably touch the brakes, +18 sounds good.

Any recommendations regarding size/offset still welcome, I went 17 inch because I can get slightly more profile than an 18" :)

Beelzebub89 Grand Master

Beelzebub89

Posted
Posted

I thought you would want as little profile as possible on a track car. More profile = more sidewall flex. You can fit the same tyres on a 17 x 9, 17 x 9.5 and 17 x 10 so you won't have trouble finding tyres for a 17 x 10 rim. Your better off deciding what size tyres you want to run for the track and then picking rims to suit that.

Rowdyr32 Mentor

Rowdyr32

Posted
Posted
Yes I found that calculator later yesterday, 17x9+38 wouldn't work as it would probably touch the brakes, +18 sounds good.

Any recommendations regarding size/offset still welcome, I went 17 inch because I can get slightly more profile than an 18" :whistling:

Offset won't effect the brake clearance. The spoke and wheel design is all that will effect clearance. The centre part of the rim is still in the same location with different offsets.

Being a beginner I would recommend less sidewall flex as while learning you won't have the skills yet to drive around the flex yet of a higher sidewall profile. Turn in is a lot easier with less sidewall flex and the car woun't move around as much. Just a heads up.

some_cs_student Veteran

some_cs_student

Posted
  • Author
Posted
I thought you would want as little profile as possible on a track car. More profile = more sidewall flex. You can fit the same tyres on a 17 x 9, 17 x 9.5 and 17 x 10 so you won't have trouble finding tyres for a 17 x 10 rim. Your better off deciding what size tyres you want to run for the track and then picking rims to suit that.

Hi,

I had a discussion with some forum members, most recommended 17x10 but I did the maths, a 255/40/17 tyre is more common in some brands of semi-slick, for example Advan A048. And the other I'd consider is 265/40/17

Either is a good fit for a 17x9.5, the 255 and sometimes 265 is listed with 10" as the upper end, so 9.5 is probably ideal for my purposes in the +18 offset.

Rowdyr32, thanks for the info, the spokes look very similar to standard but I'm not quite sure how much brake clearance they have, I think +18 is a safer offset as I get an extra 6mm in the 17x9.5.

Thanks for the tips.

  • 6 months later...
Munroman Enthusiast

Munroman

Posted
Posted

If you have not bought yet you are WAY better with 18" because there is an abundance of really good slicks around cheap. I sell almost new for $50 to $100 per tyre. Much faster than any semi slick.

Tyres will be the main cost and the thing that improves your lap time more than any other thing. Its a recurring cost so you really should try to go 18"

Here are a couple of useful links

http://www.1010tires.com/WheelOffsetCalculator.asp

http://cgi.ebay.com.au/ws/eBayISAPI.dll?Vi...=STRK:MESELX:IT

http://cgi.ebay.com.au/ws/eBayISAPI.dll?Vi...=STRK:MESELX:IT

some_cs_student Veteran

some_cs_student

Posted
  • Author
Posted

Too late, I've bought 17x9.5 , prices new are similar between 17/18" I didn't expect semi-slicks to be cheaper in 18" and they aren't brand new....

Thanks anyway

  • 7 months later...
Kaido_RR Grand Master

Kaido_RR

Posted
Posted
Offset won't effect the brake clearance. The spoke and wheel design is all that will effect clearance. The centre part of the rim is still in the same location with different offsets.

Being a beginner I would recommend less sidewall flex as while learning you won't have the skills yet to drive around the flex yet of a higher sidewall profile. Turn in is a lot easier with less sidewall flex and the car woun't move around as much. Just a heads up.

incorrect. offset does affect brake clearance.

I couldn't get my nismo lmgt 17x9j +30 to clear my Ap however with a +15mm spacer they clear no issue

«Cyph3r» Experienced

«Cyph3r»

Posted
Posted (edited)
incorrect. offset does affect brake clearance.

I couldn't get my nismo lmgt 17x9j +30 to clear my Ap however with a +15mm spacer they clear no issue

Think about what you just said for a second.

Offset of the wheel does not effect brake clearance.

As old mate said it's about the face type and the spoke design along with the thickness of the centre of the wheel.

The spacer is not changing the offset of the wheel at all, only the effective offset. If you bought a 17x9j +15 Nismo LM GT in the same face as you have now, I guarantee they'd foul the brakes as well.

That is why wheel manufacturers offer different face types to clear big brakes, offset is all just to do with backspacing (coilover clearance) and guard clearance/fitment.

edit: can't spell :P

Edited by «Cyph3r»
Beer Baron Grand Master

Beer Baron

Posted
Posted

they both affect brake clearance. offset in different wheels is achieved diffeent ways. some change the position of the rim relative to the spoke (thus the spokes position to the caliper does not change) but some change the thickness of the hub which moves the spokes and the wheel rim and this does affect caliper clearance so it all depends on the individual wheel. both spoke desgin and offset and furthermore HOW the offset is achieved does affect caliper clearance.

Kaido_RR Grand Master

Kaido_RR

Posted
Posted
they both affect brake clearance. offset in different wheels is achieved diffeent ways. some change the position of the rim relative to the spoke (thus the spokes position to the caliper does not change) but some change the thickness of the hub which moves the spokes and the wheel rim and this does affect caliper clearance so it all depends on the individual wheel. both spoke desgin and offset and furthermore HOW the offset is achieved does affect caliper clearance.

+1

beer baron explain it alot better than i can. If you check the RAYS website they state which offset do not clear brakes for a given width

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

    • GTSBoy
      R34 GTR running rich and noisy turbo coincidence

      By GTSBoy · Posted

      Put a fuel pressure gauge on it. Replace the turbos. Probably completely separate issues.
    • Dose Pipe Sutututu
      R34 GTR running rich and noisy turbo coincidence

      By Dose Pipe Sutututu · Posted

      CAS maybe?
    • silviaz
      Recomended Coolant For Gt T R34

      By silviaz · Posted

      What copper washer do you guys use on the bleeder bolts? The existing one I have I had no idea where to find it in a local store, I did buy some online but that are only 1mm thick whereas my old one is 2mm+ thick and when I put the new washer out and squeeze the top radiator hose I can hear a bit of air but not with the old one. Does this matter? The new one doesn't leak, but the inner diameter is a bit loose whereas the old one threads on the bolt.
    • donut_kng
      R34 GTR running rich and noisy turbo coincidence

      By donut_kng · Posted

      Howdy all, after being out a few weeks ago on a spirited drive in my GTR I have 2 issues that oddly have appeared at the same time. Whilst accelerating quickly through the gears all of a sudden i’ve lost power at the top of third gear (below redline around 6000rpm) for no obvious reason.    From that point onwards the car has been running rich on idle, won’t really rev under load without a ton of black smoke and the odd backfire, and dying as a pull up to a set of lights unless I keep the revs up around 1500rpm. In addition when shutting down the car that same night (I was 10 minutes from home) I noticed one of the turbos was significantly noisy on wind down when shutting off the engine. After letting the car cool down overnight it starts up fine, although once it gets to temp the revs start to creep up and down, the exhaust is darker than it should be and it also sounds like it’s running rich (fat note) I’ve put a new set of plugs in it - no change, the old plugs all seemed OK with two of them being somewhat richer/fueled up than the other 3 with 1 being borderline. I’ve smoked tested the intake system via the front of the Turbos, found a split vacuum hose going to the factory boost gauge sender, which I have since replaced.  Also found another leak on the gasket coming off the rear turbo outlet, have also replaced this. After fixing both of these leaks - still have the running rich issue. I’ve also tried another pair of AFM’s - no change here After pulling off the front turbo intake pipes, there is obvious shaft play in the front turbo, which now hisses loudly on light revvs although I can’t see why this would make the car run funny even under idle. I’m curious to know why it’s running rich before I potentially replace/rebuild turbos. The car is completely stock <50,000kms  other than an exhaust. Oil and coolant are all clear. I haven’t bothered with coil packs as it looks like they won’t be the issue due to condition of the plugs. Any help appreciated as I cry myself to sleep!
    • Rezz
      R34 4 door side skirt identification

      By Rezz · Posted

      No probs at all. I used to love trying to dig up obscure info for those in need where possible going back 20+ years on SAU.  I did have another look and couldn't come up with any closer match. I'm leaning towards those skirts in your first pic are custom fitments, cut down/extended or from another car entirely and modded to fit an R34 sedan. I would've thought someone in Japan had them and taken a photo at some stage over the last 2 decades but there's nothing. Someone out there must know surely.
×
×
  • Create New...