Wheel Sizes & Offsets For Skylines

[alr33x]

hey alex, on that topic, i just ordered my new rims for my 33, 18x9 + 20 and 18x10 +18 (rear) im gonna run a 235x40x18 tire on the rear, how much camber do you reckon ill need to get some hellaflushness happening? guards are already rolled flat...

not sure mate, but i wouldnt think much because that will be fair stretched so your gunna have a shit load of room anyway..

pics when ya done.

[427]

mates, i need help,

will this rims fit r33 gtst without any mods (roll arched, flare and so on) ?

19x9J+38 , 10J+38

i need rims without any rub with arches

thanks

[alr33x]

back will, front depends on the rim design might hit brakes.

oh and why 19s they are the ghey..

[BTM]

Hey Braddd, this is my first post and I don't want to come in too hard straight off the cuff, so forgive me if this sounds too authoritative, but you know thats not legal right?

225/40R18's shouldn't be mounted on anything bigger than a 9" wheel.

215/40R18's shouldn't be mounted on anything bigger than a 8.5" wheel.

with that in mind have you considered;

rear: 255/35R18

front: 225/40R18 or even a 235/35R18 (a bit hard to find)

You don't understand that the wheels are highly illegal anyway, and stretch is both safe (when not over the top) and commonplace now to allow for extra offset without guard clearance issues with the static camber.

There are already too many shops that cry about stretch. Please do not be another one. At the end of the day, those kind of recommendations only lose you business. Different strokes for different folks.

is this manual what police will defect you via?

i got done on the weekend for a 235/40 on a 18x10 so now im thinking ill just stick the right size what is recommened for 10" in your book pls?

It's part of life. If you had 235s on 10s and can fit 265s on it without modification, you had the wrong tyres anyway.

The only reason to run the 235s on 10s would be to avoid clearance issues due to wheel hang with the standard ride height.

yeah nisskid I know you regularly run stretched tyres and so do many people, and you probably have not had an issue.

but to me going against the actual manufacturer's recommendation, as well as ADRs so it looks drift hectic is pretty silly.

just buy wheels and tyres that fit the car properly and safely.

any time you are relying on a inward stretched sidewall and camber to tuck the wheel inside the guard it is getting pretty silly.

Sorry Duncan, but you clearly have no idea what you're talking about. You also clearly have no idea why we do it or the reasons behind it.

I have always run mild stretch (sometime aggressive depending on my alignment set up and tyres), but also run wider flat tyres in other scenarios.

Stretch is not ideal for a lot of situations, but bulging tyres is just as bad for others. Making a sweeping statement without any clear knowledge on the area just makes you come off as arrogant and uneducated.

well u'd want the higher offset rims on the fronts if anything and +35 9" wheels might scrubs on the inside if your low so test fit them first. 17x9 +20 should fit on the rears fine if you run a thin 235 or a 225 tyre.

Huh?

No way!

+20 on the front and +35 on the rear for handling.

Pulling out rear camber will give grip and fill the guards.

Cambering the front for handling will also give more room.

They'll just look goofy if 3 piece coz you want more dish on the rear etc.

[BTM]

lol... fitment nazi

"person with taste" is how i'd say it

the offset is simply the distance from a wheels hub mounting surface to the centerline of the wheel...

a lower or higher offset will move the mounting surface inside the wheel, but its simply the shape of the spokes that can foul on the brakes.

for instance.... lets take say an 18x9+40 vs an 18x9+10 in the same rim... the brake clearance will be exactly the same on both wheels, as all that has happened is the spokes have moved further inwards.

its easier to imagine 2 or 3 peice wheels such as meisters et al where the centre section can be mounted in different spots by the manufacturer, but will always be the same shape

Also it needs to be mentioned that offset is also relative to width. The centre point is measured and the offsets calculated from there. Obviously if you have more width on each side, they'll stick out more with the same offset etc.

cause the 400r bar sits about 20-30mm lower then my sideskirts

so if i get a higher front bar that sits flush with my side skirts i would just lower it 20-30mm and the fender gap will be gone

Eliminating the fender gap should be a priority over buying a big kit to make it look low. That's why 98% of Australian modified imports look like absolute shit.

We're slowly educating the masses though.

[BTM]

Hi all,

I have 33 GTR, it's lowered with Cusco Zero2 coilovers.

I was wondering what would I need to do to my R if I want to put 18x10.5 +/-0 (there is a pair of SSR Sp1 in this size for sale on ns.com, that I'm tempted to buy this pair and order new pair)?

Or I may be better off buying 18x10 +18 and leave the ride height as is (345mm guard to centre front and 335mm rears)?

Thank you in advance.

Cheers

Grant

10.5 +0 is possible and will require light guard work and camber all round. This is around the size I would be using for one, but you need to look at -3 camber and a light pull of the guards.

Would look tough as nails pulled off though

u gotta better front on shot? it must be fair mexican 9.5 +12 on stock guards?

Wrong. This should be a starting point with a mildly cambered alignment.

nah not scared but man when i had my 18x9s with spacers so it was +5 they were mexican like a mother fkr even with a roll and now i got 18x.9.5 +15 i dont see how they are gunna fit but at the rate im chewing up the fibre glass they wont last long lols

It sounds like you have the wrong set up.

Either it's your tyres, or alignment that are making them not fit. 9 +5s fit under mildly pulled standard guards

man primal failed with rolling my guards at the front shit was mexican as.. ill try find a picture later

That looks like next to no camber. causing the wheels to stick out.

If you drive the car hard, you should be running around -2.5. Then you'll find the wheels are not mexican at all as the tops will come in about 10-15mm.

mates, i need help,

will this rims fit r33 gtst without any mods (roll arched, flare and so on) ?

19x9J+38 , 10J+38

i need rims without any rub with arches

thanks

Fronts are the wrong size. Give them a miss. Unless they're new and you can get the fronts in a +20 or +25.

[Deano 1]

at what point dose a tyre become unstreched on a 10inch wheel? 10inch is 255, so a 255 or 265 is unstreched? 245 would be alil strected?/

am i right?

[Duncan]

Sorry Duncan, but you clearly have no idea what you're talking about. You also clearly have no idea why we do it or the reasons behind it.

I have always run mild stretch (sometime aggressive depending on my alignment set up and tyres), but also run wider flat tyres in other scenarios.

Stretch is not ideal for a lot of situations, but bulging tyres is just as bad for others. Making a sweeping statement without any clear knowledge on the area just makes you come off as arrogant and uneducated.

lol what would I know about tyre performance eh?

Since I was trying to be polite before.....you would have to be a real dickhead, more interested in what you think looks good rather than performance, to run a tyre stretched beyond manufacturer and tyre fitter recommendations.

Now way do you have some amazing secrets that the rest of the world hasn't caught on to.

Let me know when you find any sort of race car (where tyre performance is paramount) running unsafe stretched tyres. In the meantime I'll stick to putting the right sized tyres on the right sized rims.

[alr33x]

BTM bit late on the scene man..

deano 255 is probaly ok will depend on the profile and what you are trying to achieve ive got 265/35 on a 10" and its not stretched at all. its to big for my application i need to go down to a 245 most likely to tuck under my guards..

if you went a 245 with a higher profile it may not be too stretched but if you want to avoid stretch go a 255 minimum

[alr33x]

"person with taste" is how i'd say it

Eliminating the fender gap should be a priority over buying a big kit to make it look low. That's why 98% of Australian modified imports look like absolute shit.

We're slowly educating the masses though.

i do have taste thanks man

and what about low + big kit

[BTM]

at what point dose a tyre become unstreched on a 10inch wheel? 10inch is 255, so a 255 or 265 is unstreched? 245 would be alil strected?/

am i right?

The difficulty is every tyre is slightly different, and some will appear to stretch, while others won't. All tyres have different sidewall stiffness levels, as well as a variation in the tread width itself, despite remaining the same size rating.

A 255 or 265 will possibly look a little stretch (like with a Bridgestone etc) but more likely be straight up and down. If I remember correctly, the R32 GTR came with a 225/50R16 factory? If that's the case, by going for a 255/35R18, you should retain the same rolling diameter as factory, with the 265 being a tiny bit larger (though the size is usually cheaper to buy).

lol what would I know about tyre performance eh?

Since I was trying to be polite before.....you would have to be a real dickhead, more interested in what you think looks good rather than performance, to run a tyre stretched beyond manufacturer and tyre fitter recommendations.

Now way do you have some amazing secrets that the rest of the world hasn't caught on to.

Let me know when you find any sort of race car (where tyre performance is paramount) running unsafe stretched tyres. In the meantime I'll stick to putting the right sized tyres on the right sized rims.

As I stated in my posts, stretch can obviously go too far and be unsafe. However there are benefits to it in mild applications (from a performance perspective, not only looks).

Manufacturer recommendations are overly mild, and 90% of tyre fitter's I've met don't even know the correct tyre fitting procedures to do their job, let alone understand what is going on (before you tell me I don't know better, I used to do a lot of tyre work for high end models like Porsche, Ferrari etc). I wouldn't let most people touch my wheels and tyres.

Now it's all a perception with 'stretch' being bad, as some people think of it to extremes. I personally run mild stretch (235 on 9.5 or 265 on 10.5 etc) to stiffen up the side walls of some of the softer brands of rubber I like to use, while having the benefit of extra clearance for lower offset. If I was running a full slick or semi slick, I would tone down my offset to run vertical side walls.

Don't think I'm some random with no idea about tyres, fitment, or the obvious negatives of stretch/bulge. I never recommend extremes because to an extent I DO agree with you. And my cars are set up to out perform and out handle most others I see on the road, based on my experience and how I personally like my cars to feel.

As for a performance car with stretch, look at the 550 Maranello's they run in the Bahrain series. They run stretch, albeit mild.

BTM bit late on the scene man..

deano 255 is probaly ok will depend on the profile and what you are trying to achieve ive got 265/35 on a 10" and its not stretched at all. its to big for my application i need to go down to a 245 most likely to tuck under my guards..

if you went a 245 with a higher profile it may not be too stretched but if you want to avoid stretch go a 255 minimum

Late to discovering this thread Hence only reading the last 8 pages or so. Just here to help people where they need it, as a lot of the opinions on SAU are still the same as were on ns.com 24 months ago.

Some people recommend truly stupid things as extremes the other way, which i strongly oppose, so it comes down to finding a nice balance

i do have taste thanks man

and what about low + big kit

That's perfect. Police like it too. If that's yours I give a big thumbs up

Sorry I may have misread your post. I thought you were saying you'd put a big kit on the car to make it look lower, rather than actually lower the car.

Took it as the typical Australian styling of 4 feet between tyre and guards and a BN kit with 19 inch Dolce's from Ozzy Tyres lol.

Edited May 9, 2010 by BTM

[alr33x]

churr its mine... 70mm off the road would go lower but just cant go nowhere, hard enough as it is

[alr33x]

lol what would I know about tyre performance eh?

Since I was trying to be polite before.....you would have to be a real dickhead, more interested in what you think looks good rather than performance, to run a tyre stretched beyond manufacturer and tyre fitter recommendations.

Now way do you have some amazing secrets that the rest of the world hasn't caught on to.

Let me know when you find any sort of race car (where tyre performance is paramount) running unsafe stretched tyres. In the meantime I'll stick to putting the right sized tyres on the right sized rims.

for your application you are spot on, lots of people talk about it being unsafe to run stretch etc but i havent seen alot of info saying it is against manufacturer recommendations, adrs yes but not directly from tyre companies.. i could be wrong and never looked that far into it.

but it goes without saying if you application is big power + traction you want maximum grip. if you are happy to slide and want a slammed tough looking car then you go with whats necessary, i havent heard of many people tyres coming off due to the stretch that often.. and im only talking about a 235 on a 10 for example

[BTM]

churr its mine... 70mm off the road would go lower but just cant go nowhere, hard enough as it is

I know what you mean lol. My Silvia had 50mm clearance at the front and used to love scraping on everything lol.

[TaKz]

Eliminating the fender gap should be a priority over buying a big kit to make it look low. That's why 98% of Australian modified imports look like absolute shit.

Yer mate i totally agree I bought the car with the kit on! i'm slowly trying to find a series 2 bar so i can reduce the fender gap asap

but then i'm picky with looks if i had a stock bar i would have go wingless.

Also the front end of my car looks uber chat cause of 2 main things too much stretch and running 17s on the front.

Going to find some tyres for 18s with less stretch then i can work out how much low i need to go

[Sparks]

Hey Guys,

I'm looking at some new rims for my R33 GTST. 18x9 +24 Front and 18x9 +18 for the Rear. I'm expecting to need a roll but will I need to run any camber or stretch to get these to fit?

[Deano 1]

My prob is the wheels I wanted only came in a 18x10 with a +18 offset, so on a r32 gtr I'm worried that I won't get clearance runing a 265 and I don't want to mess with ride height. The tyres are gunna be KU36's and I'm planing to do the od trackday on them. Wat do you guys think?

[HEKT1K]

Hey Guys,

I'm looking at some new rims for my R33 GTST. 18x9 +24 Front and 18x9 +18 for the Rear. I'm expecting to need a roll but will I need to run any camber or stretch to get these to fit?

front and rear will most likely need a roll, i'd go no wider than 235 on the front, back is more up to you, you could fit something a bit wider there. sizes aren't insane so you won't really need camber to tuck them in

[BTM]

My prob is the wheels I wanted only came in a 18x10 with a +18 offset, so on a r32 gtr I'm worried that I won't get clearance runing a 265 and I don't want to mess with ride height. The tyres are gunna be KU36's and I'm planing to do the od trackday on them. Wat do you guys think?

They should be fine with 265s on them. With rolled guards it's not over the top at all

[alr33x]

Hey Guys,

I'm looking at some new rims for my R33 GTST. 18x9 +24 Front and 18x9 +18 for the Rear. I'm expecting to need a roll but will I need to run any camber or stretch to get these to fit?

depends how low your car is whether you need stretch or a roll.. id say you'll need a roll but thats not a big deal its cheap & easy and money well spent.

My prob is the wheels I wanted only came in a 18x10 with a +18 offset, so on a r32 gtr I'm worried that I won't get clearance runing a 265 and I don't want to mess with ride height. The tyres are gunna be KU36's and I'm planing to do the od trackday on them. Wat do you guys think?

nah you'll be fine with standard ride hieght as far as i know, worst case will be a roll which isnt a big deal wont effect the car in anyway. and you can get away with a 255 on a 10" no problems if it comes to it.

post pics when done this thread needs more pics for ppl to understand what works and what doesnt