Jump to content
SAU Community

Recommended Posts

Evening all,

I've got a 260RS and was curious to know if anyone else out there has gone down the road of fitting a set of 19" rims?

I've had a look at all the numbers and this is what I know so far from looking at the original C34 16" rights through to 18" and now 19".

C34 205/60P/16" which gives a rolling radius 204.96cm's total diameter 65.24 Sidewall height 12.3

My current 18" 235/40/18" gives a rolling radius 202.7cm's total diameter 64.52 Sidewall height 9.4

Just curious to know if anyone else has done this and whether the suspension is likely to suffer with the lower profile tyre.

The other thing that gets me is the C34 sticker has two sets of numbers, the lower numbers are below, to me that's saying either the front and rear are different or you can select either or tyre choice for the stock rims - the latter seems more probable but then again the BBS rims on the 260RS were different sizes too. That said I'm currently rolling on the same sized 18" wheel and tyre. Any help for someone who is trying to work things out for themselves is greatly appreciated!

C34 225/50/16 I put that into a calculator and got a rolling radius 198.36cm's total diameter 63.14 Sidewall height 11.25

The C34 numbers came from here: http://www.skylinesaustralia.com/forums/St...ons-t92233.html

Link to comment
https://www.sau.com.au/forums/topic/327637-19-rims-vs-18-bs-stock/
Share on other sites

I run the suspension and rear cradle width as a 260rs

My rims are 19x9.5 +12 with 245/35/19 tyres

Just make sure the rims are "A" disk (at least on the front) so they clear your brembo brakes

What ever tyre size you pick, the only important thing to maintain is the SAME rolling diameter front and rear. Keeps the AWD system happy.

Just make sure the rims are "A" disk (at least on the front) so they clear your brembo brakes

don't do this if you are buying work rims.

each manufacturer has different 'codes' for disk types

ie your volks are A-disk (maximum caliper clearance) and clear your brembos, but if you bought an A-disk wheel from work wheels you would get standard caliper clearance in their range and they would not clear the front brembos - you would need R-disk which is their term for caliper clearance.

just make sure whatever wheels you get, the fronts have adequate clearance for big brakes. the rears it doesn't matter (unless you want to rotate front to rear for tyre wear)

i'm also running the narrower cradle in my stag which is also fitted with r33gtr brembos and i have 18x9.5+2 R-disk (maximum caliper clearance) fronts and 18x9.5+1 O-disk rears (minimum caliper clearance, maximum dish). probably on the extreme side of fitment though :ninja:

Just re read my message - was in a hurry on my way out to a touch game.

The link that works....

http://www.skylinesaustralia.com/forums/St...ons-t92233.html

Also, with offset I read this from the same link above from Sydney Kid

"The only Stagea S1 with 17" rims standard I have seen is the 260RS. They utilise the standard R33GTR rims (what I have on mine). They are 17 X 9 X 30 offset with 245/45/17 tyres."

Does the rim manufacturer matter so much if you have a larger offset? I thought this is what helped with the caliper clearance on the brembo's. I'm looking at a couple of different options, Enkei rp03's if I can find them or maybe a set of rp05's if they aren't too exxy.

The works rims have factored in a little too just waiting to hear on the above.

Was thinking of going for 19" 9.5 +30 offset. What profile tyre and manufacturer/brand are you running?

Does the 19" make it much harsher to drive or are they still good for giving a bit of stick around the mountains? 18" with the profiles I mentioned earlier are smooth as, very direct in the steering and just great overall in the handling... that is until you find a really tight corner and the ass starts to pull before you put your foot back into it - the extra weight through the rear and longer wheel base has nearly brought me unstuck a few times so I just want to be sure I'm not going to mess with the handling if I go 19" rims.

Oh and for anyone who wants to know where I'm getting my numbers from, I should credit the source, the calculator is from here: http://www.kouki.co.uk/utilities/visual-tyre-size-calculator

I put SydneyKids number in to see what they came up, same as the stock C34 pretty much.

17 X 9 X 30 offset with 245/45/17 tyres

rolling radius 204.93 cm total diameter 65.23 cm Sidewall height 11.03 cm

Ignore the offsets of that sydneykid has quoted. His car is a auto which has a 50mm wider rear cradlle in it than your 260rs.

If you were to run the wheels you listed 19x9.5 +30 they will not fit in the rears as they will hit the struts.

If you want to keep your wheels inside the rear guards with minimal rear camber go no wider than 9.5 with around +12 offset

Some people on here have different ideas (MIKE and myself for example) to what fits and what they think looks good etc. so you will not get a exact answer to what fits

Let us know how you want the rims to sit, what camber you want to run, ride height and tyre size and then we can give you a better idea as to what "fits"

so your telling me, r34 gtr wheels will NOT fit on a manual s2 stagea due to the rear wheels hitting the struts?

No

GTR rims are 9" wide not 9.5" as quoted above. They will have a bit more clearance

They will be close, depending on what struts you have and what camber you run

No

GTR rims are 9" wide not 9.5" as quoted above. They will have a bit more clearance

They will be close, depending on what struts you have and what camber you run

cool cool will have to fit them as soon as i get my car

they are 18x9 +30 i think....

I've taken off one of my rims and have taken some measurements of what I had.

The 18" rim is 9" wide, the offset is stamped on the inside as 38.

I was thinking of going 9.5" but am starting to think sticking with a 9" would be better to save on weight on the rim and the extra rubber.

Not sure if I worked out the ride height correctly but from the centre cap I measured from the floor to the top of the wheel arch which was 27", from the floor to the top of the wheel it measured 24.5" (the last figure could be out a little as I didn't have something flat to stick on top of the wheel to put against the measuring tape.

From what I was told going +30 offset on a 9.5" rim would hit the suspension, that appears certain given the extra .5" is close to 13mm which together would make 43mm total (7 more than the 38 I already have).

So If I get a 9" and go for a +30 offset what difference would the 8mm less have overall to whats currently fitted. I noticed the rear rim is inset more to the outside of the guard and with the front I guess a lower offset would bring this out another 8mm closer to the guard. I haven't read up on the camber parts of the equation but would imagine that 8mm difference could pose an issue if it was to rub on the outside of the front guard.

I really should read up more on this stuff and not rely on other people to help with this, thanks to all who have contributed thus far. I just want to be certain I'm not going to be ordering the wrong rim as I'm sourcing these from a supplier in the US who seems to have a good stock of enkei rims which is now certain I'll be getting as all the other brands are made to order with a 10-12 week delay.

Doesn't look like a 9" is available in the rim I'm looking at getting.

Found this website which only has 8.5" and 9.5" sizes available in the Enkei RP03.

http://www.stillen.com/product.asp?id=ENKE...;c=WH&m=all

The smallest offset number is 22 which given then extra .5" of rim would make it 35mm when compared to the 38mm I had.

Have I worked this out right? Looking at ordering the rims this week if everything checks out okay.

Edited by CruisingFast

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

    • I am getting the same issue. Did you resolve it? I just got it after installing my new super coppermix and literally the same issue, new fork, new 18mm carrier, release bearing that came with the kit and replicated the exact same sound. 
    • If you like - I have the STL files so I can email em. There's a couple of gotchas (i.e the holes are not threaded so you might need/will need) to utilize some M3 melt-in threads for some of the points. However if you want to be super accurate, and are willing to remove your calipers and your SHOCKS it's a really good tool. You also might need to scale the part that measures the tyre width a bit wider. It defaults to a 7.5in tyre and I mean who is running that. Luckily with the magic of CAD this is very easy to rescale.
    • jeebus. glad you weren't under it while performing the stunt. Also thanks for the link to the wheel measurer, exactly what I needed
    • In the older stuff there were very significant differences 2wd to 4wd, for example Stagea had strut front end for 2wd and double wishbone for 4wd so it was not minor to swap. From poking around the 2wd v37, it *looks* like it might be more possible; some of the parts specifically have "2wd" stamped on them which suggests the platforms are more similar. You'd still want to start with a 4wd half cut to swap stuff from though. I'd suggest if you don't have a tune on the ECU you don't really need one on the trans either. Throttle mapping is in the ECU side (and you can always use a Roar Pedal if you want the throttle to actually respond to your foot), and really if you are happy with the stock power you probably accept the stock trans behaviour too....its all made to be "sporty" not racey.
    • So, updates. I have not washed the car since it came back from Tassie. I've driven it around a bit but not got around to actually sorting it out. I DID raise it because I cracked the rear bar leaving a hotel which was very distressing. Interestingly, the car drives more compliant now that it's raised a fair bit (5mm front, 15mm rear). Also noticed that my FR height was 10mm lower than FL. So that's now sorted out, too. I also bought this and had it printed: https://www.etsy.com/au/listing/1576422240/wheel-and-tire-fitment-tool-universal?ref=shop_home_feat_1&dd=1&logging_key=08f604d9fa4cc383550ba985e6ac85cd5cac7fbb%3A1576422240 Now, if I was smart I would have taken my brake calipers off to actually use this correctly but it was evident enough to me that in the region where the caliper was... there was nothing to hit suspension/guard/arm wise. So I'm going with "it'll be fine" after using the tool to hopefully very precisely measure the wheel clearance. Also while doing this, I had the very VERY bad idea of jacking one of the wheels/suspension arms up while the rest of the car was on jack stands. I did this to see how the arm would travel. This all was well and good until the car slid off the stands and went through a fence. So don't do that. Incredibly nobody was hurt and there was only minor damage to the rear bumper as the car didn't have far to slide, and had 3-4 wheels on it. The only damage turned out to be the fence itself which was easy to fix, and a little bit of damage to the fibreglass rear bumper trim. I had already planned to try a touch up paint kit to fix the time I drove into my garage door to see if it'd help in the interim before I get it fixed properly. I used the Dr Colorchip kit after looking online and seeing everyone talking about it. Yes it's made for chips and not huge broken missing pieces and I'll be 500% recommending it for stone chips after using it for stupid things like me. This took about ... 10 minutes and looking at the half assed photo the 30 second job I did on the bumper corner was almost perfect just by using the tiny little brush and painting it in. The sealact stuff to remove over-painting is really useful, so if/when I do it again I'll likely slather the touch up paint well over it and then clean it up with the cleaning solution. The wheels should arrive in a couple of weeks. I am still kinda confident after doing a stupid amount of measuring (and borrowing a set of 18x10.5+15) that they will not fit because I overlooked something, somehow and flew too close to the sun. ALSO R34 GTR guard liners do not fit on a GTT. I bought the undertray brake duct guides and had the wonderful problem of them not fitting my intake, my oil cooler and the liners themselves were even worse. Attempting to fit them won't work in general - You would have to cut them up as another poster mentioned as the bodywork is different on the GTT. At least I can try to resell them. So instead of cutting those up, I cut up my old already-cut-up GTT liners and extended them by using some PP plastic and drilling some 8mm holes for some nissan clips for the 'extra' bit. Because I was happy to cut them I was able to mount them pretty damn forward so I now have some semblance of guard liners, and the brake vents seal the bumper from the bottom. It sort-of-looks like this, to give some idea - If you look at the GTR and then the GTT this is when I realised that I needed to seriously measure as the inside of the rim area is entirely, entirely, entirely different and could not take any internet measurements for granted.   
×
×
  • Create New...