Hi guys,

I just saw this thread on Skylines Australia: http://www.skylinesaustralia.com/forums/Wheel-Sizes-and-Offsets-Sk-t84208.html

and I thought it would be a good idea for us too since we're pretty much on a one make website.
So I've blatantly copied it and any credit should go to "SydneyKid" on said Skyline forum. :)

How it works is you post up the model of Magna/380 etc and wheel dimensions that you're using / used and if modifications were required to fit.

Here's the template:

Vehicle model =
Wheel diameter =
Wheel width =
Wheel offset =
Tyre size =
Modifications to fit =


So the idea is for this thread to be a list of everyone's succesful or failed aftermarket wheel fitments, so that the next guy can find out what works and what doesn't.

And to make this idea our own, I'll be happy to compile the list into a spreadsheet / CSV file and post the complete data back into this original post, as a single list might be easier to read once we get more than a couple of pages on here.

Cheers! Oggy.
ó¿ó

p.s. if this has been done before, sorry, I'm at work and don't have time to search but thought it important enough to post before I forget. Oh, and my reason for looking is that I have some 17x7", 40 offset wheels and I wonder if they'll fit my TJII AWD.

17x7 +40 will absolutely fit.

Vehicle model = 3rd gen
Wheel type = Enkei RP-03
Wheel diameter = 19"
Wheel width = 8.5"
Wheel offset = +42
Tyre size = 245/35R19 front + rear
Modifications to fit = 5mm spacer @ rear to clear rear control arms. 245/40R19s require 10mm spacers at the rear, and scrape at anything past one turn steering lock at the front, in addition to hitting the guards. Fronts are almost dead in line with the guards - just in side.

As SupremeMoFo said, 17x7 will definitely fit. However, since yours is also an AWD, you'll require tyres with at least 95 load rating. Which meains
225/50R17 XL tyres (these cost more and are smaller than OEM AWD) or go slightly bigger to 225/55R17 (these are becoming more common thanks
to Holden) and so are not too expensive. The only problem I have is a slight rubbing of the splash guards on the front right at full lock.

Vehicle model = 2005 KW GTVi AWD
Wheel diameter = 17
Wheel width = 7
Wheel offset = 40
Tyre size = 225/55R17
Modifications to fit = None.

Well, any Magna/Verada with 16" rims needs 95 load rated tyres, not just AWDs, since OE was 215/60R16 95H.

Well, any Magna/Verada with 16" rims needs 95 load rated tyres, not just AWDs, since OE was 215/60R16 95H.

What about the Magna Sports with 16" rims. I'm sure the minimum for that is 94 just like the VRX.

Nope. My TJ Sports 215/60R16 95H on the placard

Vehicle model = TW LS AWD
Wheel diameter = 18"
Wheel width = 8"
Wheel offset = 36
Tyre size = 235
Modifications to fit = None

wouldnt it be best to show wat brand on rims??

wouldnt it be best to show wat brand on rims??Agree, edited mine in

wouldnt it be best to show wat brand on rims??

there isnt much relavance with brand naming... wheels are standardised width, diamter, offset and pcd.

Model: 2nd Gen Verada
Diameter: 18inch
Width: 8"
OFFSET: +35
Rubber: 235/40/18 Slightly bigger then i should have but will do. No rubbing, even with low suspension, fronts are flsuh with the guards and rears sit inside the guards by 5-8mm.

18x8.5 +32 will fit but require roughly a 5-10mm front fender roll so to not scrub on big bumps. He rears are very flsuh, would suggest a 215 or 225/ 30/18 wheel to reduce risk of cutting the sidewall with big lateral loads

Might also be worth adding what suspension we're using?


Vehicle model = TJ VR-X
Suspension = King Lows, KYBs
Wheel type = Speedy Graphites
Wheel diameter = 18"
Wheel width = 8"
Wheel offset = +38
Tyre size = 235/40
Modifications to fit = De-flared and rolled guards. No dramas so far. With front flares on, wheels touched at moderate speed. Didn't drive it prior to rolling the rear guards, but the wheels sit *under* the lip, and with a load in the back, the wheels nearly sit in the guards, so do the maths. Flares would have fit with a good trim but I've opted just to remove them. Tyres (Maxxis MA-Z1) *just* poke out the front guards so here's hoping I don't get pulled over.


Never ever had a single drama on Lows with the stock rims/tyres (17x7" +46, 225/50/17).

there isnt much relavance with brand naming... wheels are standardised width, diamter, offset and pcd.

Model: 2nd Gen Verada
Diameter: 18inch
Width: 8"
OFFSET: +35
Rubber: 235/40/18 Slightly bigger then i should have but will do. No rubbing, even with low suspension, fronts are flsuh with the guards and rears sit inside the guards by 5-8mm.

18x8.5 +32 will fit but require roughly a 5-10mm front fender roll so to not scrub on big bumps. He rears are very flsuh, would suggest a 215 or 225/ 30/18 wheel to reduce risk of cutting the sidewall with big lateral loads

i ment so people no wat rims u have so they can go check them out online and say "hey i want a set of them in this offset with this width"

i see your point... i though your might have been referring to style vs caliper clearance, in which case i was going to say unless you are buying high end wheels, its unlikely you even get the choise of caliper clearances for differetn widths and offset combos.

Vehicle model = TL VR Limited
Wheel type = Speedy Adrenalin
Wheel diameter = 18"
Wheel width = 8"
Wheel offset = +38
Tyre size = 245/40
Modifications to fit = None

Vehicle model = MY00 TJ Magna sports
Wheel type = Enkei (powder-coated evo7 rims)
Wheel diameter = 17"
Wheel width = 8"
Wheel offset = +38
Tyre size = 225/50/R17
Modifications to fit = None

Vehicle model = TW ES
Wheel type = RJR linier
Wheel diameter = 18inch
Wheel width = 8inch
Wheel offset = +35
Tyre size =235/40/R18
Modifications to fit = none

Vehicle model = 2004 KL AWD
Wheel diameter = 19" RJR Vouge
Wheel width = 8.5
Wheel offset = +38
Tyre size = 245/35/R19
Modifications to fit = None, only minor rubbing on inside splash guard at full lock due to being lowered.

Wheel width = 8.5
Wheel offset = +38
Tyre size = 245/35/R19
Modifications to fit = None, only minor rubbing on inside splash guard at full lock due to being lowered.Another reason rim type was important. If my rims, same size, were +38, they'd sit proud of the guards.

Vehicle model = TW LS AWD
Wheel diameter = 18"
Wheel width = 8"
Wheel offset = 36
Tyre size = 235
Modifications to fit = None

What profile are the 235 tyres at? I'm thinking of going to 18" when the current set of tyres need replacing.

Another reason rim type was important. If my rims, same size, were +38, they'd sit proud of the guards.

fitment is a function of width and offset, and obviously diameter. regardless of rim type, offset and width remain constants, not variable with wheel design/shape unless intentional, in which case offsets and widths change. Just about regardless of ANYTHING, if a wheel has the same dimensions as another, say 18x8.5 +30, the rims will have the same fitment, with variables being, the car it goes on and appropriate pcd, and the rubber used. Getting good fitting wheels isnt that hard, because there is actually a science behind it.

I agree with you but some people have had 18x8 +35 rims which sit just of the guards, whereas most don't.

another thing to note i guess would be potential for damage. My front wheels are flush with the gaurds, but when i first put them on the left looked maybe 2-3mm out of the gaurd, since ive owned it it hasnt had contact with anything, but the car is 15 years old. So with a mates gaurd roller, bolted it to the front, and used it to measure the front right hand gaurd, then put it on the left hand side, and what do you know, at some point in time the gaurd has been psuhed in some 4-5mm. quickely rolled back out and she is perfect.

There wouldnt be much difference in 8" +35 to another of the same width/offset but something like a profile raise witht he tyre, of 5, from say a 35 to a 40 profile type will add a noticable difference to the position of the outter (and inner for that matter) sidewall. ALso note a lot of typres now come with additional gutter protection (thicker sidewall) which will make fitment issues more pronouced.

Mine are 235/35/19 rubber with +48 offset with no issues except they wear on the inside edges but no rubbing.
I want to go to 225/40/19 for diameter reasons.

Vehicle model = TJ VRX
Wheel diameter = 20"
Wheel width = 8.5"
Wheel offset = dont know
Tyre size = 245/30/R20
Modifications to fit = A space (not sure on size), guards need to be rolled and flares need to be modified. Presently it still scrapes

Vehicle model = TH Sports
Wheel diameter = 18 inch
Wheel width = 8.5 inch
Wheel offset = 35+
Tyre size = 235/40 R 18
Modifications to fit = Trim the flares, a little bit of rubbing on inner guard

Vehicle model = TJ II Advance

Wheel model = Lenso DC6
Wheel diameter = 18
Wheel width = 8J
Wheel offset = ET35
Tyre size = 235/40R18
Modifications to fit = 5mm spacer on front to clear Brembos Flares trimmed front and rear.

Wheel model = Oz Racing
Wheel diameter = 17
Wheel width = 7.5J
Wheel offset = ET38
Tyre size = 235/45R17
Modifications to fit = none required.

Wheel model = Starcorp Fusion Mesh
Wheel diameter = 18
Wheel width = 8JJ
Wheel offset = ET38
Tyre size = 235/40R18
Modifications to fit = 7mm spacer on front to clear Brembos.


cheers,
.wook

Vehicle model = KJ Verada

Wheel make = AU Racing
Wheel model = 152
Wheel diameter = 18"
Wheel width = 7.5"
Wheel offset = +42mm
Tyre size = 235/40/18
Modifications to fit = None
Suspension = King Spring SL/L combo
Comments = N/A

http://img.photobucket.com/albums/v124/mohit/Verada/veradaevolution03.jpg

Wheel make = Rodney Jane Racing
Wheel model = Linear
Wheel diameter = 18"
Wheel width = 8"
Wheel offset = +35mm
Tyre size = 235/40/18
Modifications to fit = None
Suspension = King Spring SL/L combo
Comments = Rear tyres would lightly scrub with people in the back

http://img.photobucket.com/albums/v124/mohit/Verada/veradaevolution04.jpg

Anyone know if an 18" x 8" with +46 offset will fit a 3rd gen.

definate yes or no?

Anyone know if an 18" x 8" with +46 offset will fit a 3rd gen.

definate yes or no?
You'd have scrubbing issues when turning without doubt, I'm not sure about inner clearance though, I dare say it'd foul on something. You really need +35 or +38 on a 18x8" Rim.

you'd be lucky to bolt them on without it fouling on the strut...

update:

Wheel make = Rays/Volks
Wheel model = RE30
Wheel diameter = 17"
Wheel width = 8.5"
Wheel offset = +30mm
Tyre size = 245/45/17
Modifications to fit = None
Suspension = DMS coilovers
Comments = not legal for road use (increase track too much) but they fit :D

Vehicle model = TJ 1 Exec
Suspension = King Lows, Boge
Wheel type = Enkei RPF-1
Wheel diameter = 18"
Wheel width = 8"
Wheel offset = +35
Tyre size = 225/40r18
Modifications to fit = trim rear flares.

RPF-1's clear Brembo's. Rear brake disk spacers for the Brembo's make effective offset +32, hence the flares needed trimming.
Tyres are a little undersized, came with the rims. Will replace with 235/40 when there worn out.

Vehicle model = TH Manual
Suspension = King Lows
Wheel type = LMR
Wheel diameter = 18"
Wheel width = (not sure lol)
Wheel offset = +35
Tyre size = 235/40r18
Modifications to fit = NONE - no grinding at all no prbs.

Vehicle model = TJ VRX
Suspension = King Lows
Wheel type = Verde
Wheel diameter = 20"
Wheel width = (not sure)
Wheel offset = (not sure)
Tyre size = 245/30/R20
Modifications to fit = Copper spacers to allow for PBR calipers and larger discs, scrubbs when suspension crunches hard.

Vehicle model = kW GTVi AWD
Suspension = Standard factory lowered
Wheel type = RJR Blade
Wheel diameter = 18"
Wheel width = 8"
Wheel offset = +35
Tyre size = 225/45/R18
Modifications to fit = None

Vehicle Model = TJ VRX II
Suspension = Pedders Lows
Wheels Make = G Max
Wheels Model = Kazei
Wheels Diameter = 18"
Wheels Width = 8.5"
Wheels Offset = +33
Tyre Size = 235/40/R18
Modification to Fit = None
Flares need trimming thats all

Vehicle Model = TJ VRX II
Suspension = Pedders Lows
Wheels Make = G Max
Wheels Model = Kazei
Wheels Diameter = 18"
Wheels Width = 8.5"
Wheels Offset = +33
Tyre Size = 235/40/R18
Modification to Fit = None
Flares need trimming thats all

That offset is illegal. OEM is +46 which means the biggest change allowed is +/- 12.7mm which means +33.3 to 58.7. This is because the track cannot be changed by more than 1", or 25.4mm.

Vehicle model = TJ 1.5 Vrx
Suspension = King SL/L combo, kyb shocks
Wheel type = Mazda RX8 Alloys
Wheel diameter = 18"
Wheel width = 8"
Wheel offset = +50
Tyre size = 225/45r18
Modifications to fit = they fit but i run 5mm spacers on the back for extra clearance

Vehicle model = TP Exec
Suspension = Standard
Wheel type = Gold 17's
Wheel diameter = 17"
Wheel width = 7"
Wheel offset = +40
Tyre size = 205/40r17
Modifications to fit = nothing lol

That offset is illegal. OEM is +46 which means the biggest change allowed is +/- 12.7mm which means +33.3 to 58.7. This is because the track cannot be changed by more than 1", or 25.4mm.

Mate the last thing I am worried about is the 3mm....:P

Vehicle model = TH Sports with VRX bodykit
Wheel diameter = 19"
Wheel width = 8.5"
Wheel offset = +35
Tyre size = 245/35/19
Modifications to fit = Heavily trimmed front and rear flares as well as rear guard lips belted up as much as possible, tyres still slightly scrape occasionally.

That offset is illegal. OEM is +46 which means the biggest change allowed is +/- 12.7mm which means +33.3 to 58.7. This is because the track cannot be changed by more than 1", or 25.4mm.


Mate the last thing I am worried about is the 3mm....:P

the 8.5" wide rim is illegal too (assuming that you haven't had them engineered based on the fact that the track change wouldn't be approved)... but you can't make sweeping statements about offsets like that Vlad. it really does depend on the width of the rim as well.

the 8.5" wide rim is illegal too (assuming that you haven't had them engineered based on the fact that the track change wouldn't be approved)... but you can't make sweeping statements about offsets like that Vlad. it really does depend on the width of the rim as well.

From my understanding, wheel width does not affect track width which is measured from the centre of the left wheel to the centre of the right wheel. Offset, on the other hand does, a change of offset of 10mm results in a track change of 20mm.

From my understanding, wheel width does not affect track width which is measured from the centre of the left wheel to the centre of the right wheel. Offset, on the other hand does, a change of offset of 10mm results in a track change of 20mm.

hrrmm, that does make sense... I guess I was going from the engineer who said my 18x8 +38 rims were right on the limit of track change (+25mm). I know he measured it, and this was before I had much camber (like maybe -1.5).

From my understanding, wheel width does not affect track width which is measured from the centre of the left wheel to the centre of the right wheel. Offset, on the other hand does, a change of offset of 10mm results in a track change of 20mm.
Yes, but legally you are only allowed to go 1" larger in width than the widest factory wheel fitted to that model.
Largest rims fitted to a Magna are 17x7 so 8" it is.

Yes, but legally you are only allowed to go 1" larger in width than the widest factory wheel fitted to that model.
Largest rims fitted to a Magna are 17x7 so 8" it is.

I know that. I wasn't arguing that fact since wookie already pointed that out.

that's actually incorrect... you CAN go larger than 8" wide, but they need to be certified by an engineer. you CANNOT go wider in track than 25mm, regardless.

Actually, within NSW that's incorrect too.

In the NSW RTA VSI 09 Revision 3, October 2003, under the heading of "Replacement wheels requiring an engineering certificate" follows "There are limits on the size of wheels that can be certified by a signatory. These limits are as follows:" and the following is for FWD & AWD vehicles.

Front wheel drive vehicles
Except where the original manufacturer provides to the contrary, front wheel widths shall be no more than 26mm
greater than the widest optional wheel offered by the vehicle manufacturer. This requirement also applies to fourwheel
drive vehicles with constant front wheel drive.

Four wheel drive vehicles
Except where the original manufacturer provides to the contrary, the maximum width of front wheels is the lesser
of the maximum width for rear wheels or 204mm (8 inches), the front and rear wheel widths must be the same.

So sorry everyone, but within NSW the max allowed wheel width on a Magna is 8".
Unless you want to convert it to RWD, then you can go +2" over the manufacturers biggest rim, ie: 9".

Model : 2004 TL AWD
Rim :18 Inch (King..'Sinner')
Width : 8 inch
Offset : + 35
Tyres : 245/40/18 SUMITOMO HTRZ111.

Comments : No rubbing or guard contact whatsoever with 2 people in the back and stuff in the boot. Suspension is standard height, Front end is getting lowered next week with SP Lows to match up the Front/Rear Guard spacing, but i'm pretty confident there'll be no issues with contact still. I gained 11MM of clearance with the new rims and tyres as the original Overall Diameter was 664mm...new ones are supposed to be 653mm.........i have done before and after checks on the speedy with the gps........interestinly, it is now more accurate at all speeds up to around 60kmh, with no real room for error........and then at all speeds up to 110(indicated on speedo)....i am actually travelling at aroung 3 kmh slower according to gps.

Cheers,

Wayne.

http://i840.photobucket.com/albums/zz322/72pug/RearLeftUpclose.jpg
http://i840.photobucket.com/albums/zz322/72pug/FrontviewDriversside.jpg
http://i840.photobucket.com/albums/zz322/72pug/FrontLeftfromabove2.jpg
http://i840.photobucket.com/albums/zz322/72pug/FrontLeftfromabove1.jpg
http://i840.photobucket.com/albums/zz322/72pug/FrontLeft2.jpg
http://i840.photobucket.com/albums/zz322/72pug/FrontLeft.jpg
http://i840.photobucket.com/albums/zz322/72pug/RearSideView3.jpg
http://i840.photobucket.com/albums/zz322/72pug/RearSide2.jpg

Model : 2005 380 GT
Suspension : Kings SL Front, Low Rear
Rim :20 inch (ANZ Five + Five)
Width : 8 inch
Offset : ill get back to you.
Tyres : 245/35/20 Roadstone n7000.

never had any tyre contact with any part of body. plenty of clearance.

Model : 2004 TL AWD
Rim :18 Inch (King..'Sinner')
Width : 8 inch
Offset : + 35
Tyres : 245/40/18 SUMITOMO HTRZ111.

Comments : No rubbing or guard contact whatsoever with 2 people in the back and stuff in the boot. Suspension is standard height, Front end is getting lowered next week with SP Lows to match up the Front/Rear Guard spacing, but i'm pretty confident there'll be no issues with contact still.

Cheers,

Wayne.

How much protrusion are you getting at the front? Could you please take a photo of the front wheel from the top and post up a link to it.

Vlad ,

Will try and get some photos tomorrow ......but from the naked eye, it's all just about level with the edge of the guard and totally legal........as the front suspension sits now, it appears to have the slightest amount of Positive camber, and next week when the new springs go in, this should be rectified......if not they'll throw the 12mm camber bolts in for me.

Cheers,

Wayne.

Vlad ,

Will try and get some photos tomorrow ......but from the naked eye, it's all just about level with the edge of the guard and totally legal........as the front suspension sits now, it appears to have the slightest amount of Positive camber, and next week when the new springs go in, this should be rectified......if not they'll throw the 12mm camber bolts in for me.

Cheers,

Wayne.
Thats interesting. Here (http://www.aussiemagna.com/forums/showthread.php?t=77300#11)is a photo of mine which protrudes a little.

Hi ....just snapped some pics off a minute ago....have compressed them quite a bit but still should be able to get an idea of how much protrusion.......do'nt have a link to attach but can email if that helps......sorry, computer gumby....lol

Cheers,

Wayne.

Use www.photobucket.com to upload them.

thanks for the link..................pics now added to my original post......

Cheers,

Wayne.

thanks for the link..................pics now added to my original post......

Cheers,

Wayne.

Thanks for the pics. Your OD is smaller than mine which will give you more room to travel and hence the slower actual speed. Your protrusion seems to be less than mine. I guess when I next change tyres, I'll try 235/45R18 first with some negative camber on the front.

Hi vlad,
I looked at getting some 235/45/18's and they are as rare as hens teeth to get, only a couple of brands to choose from, and hence the prices are not at all reasonable......so the 245/40/18 seems the better choice as it is readily available from heaps of manufacturers, the tyres you have now, and the 235/45/18's will be the same OD roughly anyway, so i do'nt think you'll gain anything. Just thinking out loud anyway. As for the protrusion, it's about perfect i reckon....i was worried beforehand as there's a decent rim protector on the tyres too. It should look even better next week when the new springs go in, and maybe the camber bolts .

Wayne.

Update:

MY00 TJ Magna sports

Track:
Wheel type = Enkei PRF1
Wheel diameter = 17"
Wheel width = 8.5"
Wheel offset = +35
Tyre size = 245/45/17 Kumho V710, 235/45/17 Toyo R888
Modifications to fit = None



Street:
Wheel type = Enkei (evo7 rims)
Wheel diameter = 17"
Wheel width = 8"
Wheel offset = +38
Tyre size = 235/45/R17 Kumho KU36
Modifications to fit = None

Wow - I started this thread in July 09 and come Sept 2010, I've finally got some new wheels. It took me that long to wear the stock tyres down. And strangely, I refound this thread after searching for "Camber Bolts" ROFL.

Vehicle model = 2003 TJ S2 AWD Sports (stock Sports suspension)
Wheel diameter = 18
Wheel width = 7.5
Wheel offset =+40
Tyre size = 245/40/18
Modifications to fit = zero. Has about half a finger width between rear tyre and shock body on passenger side.

Vehicle model= 97 TF Exec
Wheel diameter= 19"
Wheel width= 8
Wheel offset=? (got these wheels off another member)
Tyre size= 245/35/19
Wheel brand= Auscar Akuza- Hyper Silver
Modifications= None. Front left scrapes the inner guard on full lock due to being on Super lows.

Vehicle model= 97 TF Exec
Wheel diameter= 19"
Wheel width= 8
Wheel offset=? (got these wheels off another member)
Tyre size= 245/35/19
Wheel brand= Auscar Akuza- Hyper Silver
Modifications= None. Front left scrapes the inner guard on full lock due to being on Super lows.

Could you find out the offset please. It is ususally stamped on the inside of the spoke. Use a mirror to help see the inner side of the wheel.
Also, zeke and oggy, could you guys post some pics like the ones I suggested below, that it front wheel from the top of the guard to see if there are any protrusions.
Ta.

Vehicle model = 2005 380 GT
Wheel diameter = 19" Osaka RS5 Hyperblack (pics on members machines)
Wheel width =8.5"
Wheel offset =38
Tyre size =245/40/19 Michelin Pilot sport 2
Modifications to fit = none. Have Kings lows all round . No issues with rubbing (as yet)

Could you find out the offset please. It is ususally stamped on the inside of the spoke. Use a mirror to help see the inner side of the wheel.
Also, zeke and oggy, could you guys post some pics like the ones I suggested below, that it front wheel from the top of the guard to see if there are any protrusions.
Ta.

No worries mate will have a look tonite n take a few pics aswell.

Wow - I started this thread in July 09 and come Sept 2010, I've finally got some new wheels. It took me that long to wear the stock tyres down. And strangely, I refound this thread after searching for "Camber Bolts" ROFL.

Vehicle model = 2003 TJ S2 AWD Sports (stock Sports suspension)
Wheel diameter = 18
Wheel width = 7.5
Wheel offset =+40
Tyre size = 245/40/18
Modifications to fit = zero. Has about half a finger width between rear tyre and shock body on passenger side.

Oggy, do you thnk if your offset was 5mm less, ie 35+, you'd still be inside the guards?

wouldnt it be best to show wat brand on rims??


Agree, edited mine in

Might also be an idea to list the tyre as I just had 2 different tyres test fitted, (245/40/18) & neither sat inside the front guard, which goes against what some people are posting here. But, after reading the spec sheets, it appears that a 245 wide tyre can be anywhere from 244mm wide through to 248/250mm wide. I assume it's the same for all tyres.

Might as well add to the list.

Vehicle model = TL VR-X AWD
Wheel diameter = 18"
Wheel width = 8"
Wheel offset = +35
Tyre size = 235/40R18
Type brand/model = Dunlop SP Sport MaxxGT (to kick off Al's idea).
Modifications to fit = Nil, fronts sit pretty well flush with the guards (sidewall protrudes by about 2mm), rear just tucks under.

Might as well add to the list.

Vehicle model = TL VR-X AWD
Wheel diameter = 18"
Wheel width = 8"
Wheel offset = +35
Tyre size = 235/40R18
Type brand/model = Dunlop SP Sport MaxxGT (to kick off Al's idea).
Modifications to fit = Nil, fronts sit pretty well flush with the guards (sidewall protrudes by about 2mm), rear just tucks under.

According to alscall, I must have a very fat 225/45R18 Nexen 7000 tyre as I have the same wheel specs as you and same amount of protrusion of the sidewall at the front.

It's not uncommon for a 225 and a 235 to have the same physical tread width.
One tyre might actually be 229 and the other 231 - so yes there'd be a bees middle leg between the two.

Here's pics of mine. The rear guards would definitely need to be rolled if the tyre was any further to the outside.
http://i18.photobucket.com/albums/b129/Ogier/Magna/IMG_1091.jpg http://i18.photobucket.com/albums/b129/Ogier/Magna/IMG_1092.jpg http://i18.photobucket.com/albums/b129/Ogier/Magna/IMG_1090.jpg

That last shot was taken as close to vertically above the edge of the guard as I could do by hand.

Anyone want to buy me some new Ugh boots for Christmas??? :)

According to alscall, I must have a very fat 225/45R18 Nexen 7000 tyre as I have the same wheel specs as you and same amount of protrusion of the sidewall at the front.
Thats interesting because it's only the fat sidewall (gutter protection) on my tyres which cause it to protrude at all, the MA-V1 tyres that were originally on these rims wouldn't have protruded. Although it's probably more like 4-5mm now that I go to look at it, still entirely the sidewall protection though thats protruding. The rim is definitely in the guard, as is the tread.
http://i144.photobucket.com/albums/r161/rhys_fairall/101_0096.jpg