What would be the widest wheel/tyre option i could go for my TE Executive with 18" wheels?

235/40/18 is usually the standard size so you could Maby get a 245/40/18 under there, best idea is to go to a tyre shop and get them to test fit the bigger size to make sure they will not rub on full lock.

Cheers mate

With tyres, it seems to be hit and miss. I've had a few dramas with my 235/40/18s. But others have gone 245s without issue.

With regards to your rims, how wide do you want to go and how much effort do you want to put in to making it work? HaydenVRX has proven that you can run 9.5" rims (albeit with flares). In my opinion, 8" is about as far wide a rim you can run sensibly before you start running into issues relating to clearance and legality. But 8.5" looks pretty tough...

As far as i could tell when i had the Ralliart, you could squeeze 255s on it, but only just.
Depends on a lot of factors, but when i had 18x8 enkeis with (IIRC) 35 offset, 245/40R18s worked well and didn't rub.

what is with people wanting wide tyres and rims on theirs cars??? it doesn't do much for handling but increases aquaplaning, is it just for looks or what?

It can be done for both looks and handling.

Wider rims/tyres = more rubber on the road = more grip.

And of course, it looks good. Something that sits low with the rims/tyres filling up the guard gives the car a very aggressive stance.

ok cool, thanks for setting me straight


It can be done for both looks and handling.

Wider rims/tyres = more rubber on the road = more grip.

And of course, it looks good. Something that sits low with the rims/tyres filling up the guard gives the car a very aggressive stance.

With tyres, it seems to be hit and miss. I've had a few dramas with my 235/40/18s. But others have gone 245s without issue.

With regards to your rims, how wide do you want to go and how much effort do you want to put in to making it work? HaydenVRX has proven that you can run 9.5" rims (albeit with flares). In my opinion, 8" is about as far wide a rim you can run sensibly before you start running into issues relating to clearance and legality. But 8.5" looks pretty tough...

My old TE had 16 x 8s and that looked better then my current TE that has 17 x 7 or 7.5 not sure what they are, (i don't like them at all they came on the car they weren't my choice) so now i want to go 18 x at least 8s but i was hoping maybe 8.5, but whatever is the widest i can go without running into trouble is what i'l get....

It can be done for both looks and handling.

Wider rims/tyres = more rubber on the road = more grip.

And of course, it looks good. Something that sits low with the rims/tyres filling up the guard gives the car a very aggressive stance.

AGRESSIVE STANCE!!!! ALL THE WAY this is my main reason for wanting wide tyres or the "phat" look lol :p

i am also running Super low front and low rear king springs if that makes a difference?

It does nothing positive for handling if you do one without the other. I have 18x8.5" wheels on my VR-X with 235/40's and it handles like its on rails, the width of the tyre is well mated to the rim. The same 235/40's felt horrible on the 18x7's on their prior, and somewhere in between on the 18x8's.

Point is, you can put as wide a tyre as you like under the guard, unless you've got the right width rim to back it up, you're doing yourself nor your car any favours. Rather than worry about what the widest you can put on your car is, find out what widths are available in the size you want, then ask about what tyres are best suited for those rims and your Magna.

so now i want to go 18 x at least 8s but i was hoping maybe 8.5, but whatever is the widest i can go without running into trouble is what i'l get....
To run my 18x8, I had to take off my flares (not an issue for you), roll the rear guards, and I also had to heat up some plastic in the rear guard and push it out of the way to stop it rubbing. I seem to have had it pretty bad though, as I've heard of others with 18x8 rims that haven't had to do any modifications at all. 18x8 looks good though!

Yeah off-set plays a part in that!

Yeah off-set plays a part in that!
If you were talking to me... my rims are +38 offset which is the common Magna offset...

If you were talking to me... my rims are +38 offset which is the common Magna offset...

ok surprised at that, no probs with here with my 18x8 +35 or 17x8 +38. My old 18x7.5 +46 used to just scrape on full lock at times.

It does nothing positive for handling if you do one without the other. I have 18x8.5" wheels on my VR-X with 235/40's and it handles like its on rails, the width of the tyre is well mated to the rim. The same 235/40's felt horrible on the 18x7's on their prior, and somewhere in between on the 18x8's.

Point is, you can put as wide a tyre as you like under the guard, unless you've got the right width rim to back it up, you're doing yourself nor your car any favours. Rather than worry about what the widest you can put on your car is, find out what widths are available in the size you want, then ask about what tyres are best suited for those rims and your Magna.

That makes sense mate, also from what i can see in your profile pic there, your wheels look awesome! got any pics of the whole car? :p

9-10 inches wide ftw.

........ now i want to go 18 x at least 8s but i was hoping maybe 8.5, but whatever is the widest i can go without running into trouble is what i'l get....


Legally, 8" wide is all you're allowed to go without engineering. Wider will fit but if you're trying to stay out of trouble..........

+38 or +35 will fit & give you the look you're going for & will fit without too many issues. Most issues won't be caused by the wheel width at all, rather the actual tyre. A lot of tyres are actually wider/ narrower than their stated size, hence why Red, (& others) have had issues where others haven't. Wheel alignment can also cause similar issues.

Legally, 8" wide is all you're allowed to go without engineering. Wider will fit but if you're trying to stay out of trouble..........

+38 or +35 will fit & give you the look you're going for & will fit without too many issues. Most issues won't be caused by the wheel width at all, rather the actual tyre. A lot of tyres are actually wider/ narrower than their stated size, hence why Red, (& others) have had issues where others haven't. Wheel alignment can also cause similar issues.

Can't even engineer anything over 8! Is a state law and can't be over-written in NSW anyway.... could be ok somewhere else.
No cop would ever notice a rim width unless it is erradic anyway!

Most issues won't be caused by the wheel width at all, rather the actual tyre. A lot of tyres are actually wider/ narrower than their stated size, hence why Red, (& others) have had issues where others haven't. Wheel alignment can also cause similar issues.
That's quite true, my current tyres (Michelin Pilot Sport 3s) fouled on the plastic wheel well lining on the rear, whereas my previous Maxxis (in the same size) didn't. I did have issues with my flares/guards with my original Maxxis though.

*If* you have issues with 235 tyres they won't be too hard to remedy. Just do it!

It will vary a bit from car to car. My old RJR 18x8's had no scrubbing issues on Mohits KJ, but scrubbed on full lock on my KE, and were fine on my TL. I assumed the difference was between models, seems more complicated than that.

I had issues with the Kuhmo KU 31's (235/40 18 on 18x8 with I think +40 offset) slightly rubbing against the inner guard on full lock.

Had the car lowered (super lows front & lows rear) fitted a new set Dunlop SP Sport fast response (same size as Kuhmos) no issues with rubbing the inner guards or fouling on outer guards. I think alot of that had to do with the way the Tyre guys set up the suspension too.

I think alot of that had to do with the way the Tyre guys set up the suspension too.
I doubt it, as there's not much you can do with setting up the suspension. The toe's the only thing you can adjust normally. If you want to play with camber, you need aftermarket camber kits installed.

Not sure Red. My tires used to scrub when I had the stock suspension height. also used to scrub on the driver's outer wheel arch (due to some minor damage there) on turn in bump. since lowering the suspension setup and getting it aligned it's had no issues with either!! The rear end definitley has greater negative camber than before. It's due for another rotation and wheel aligment this month so I will ask the lads what adjustments they did to the setup. either way it handles way better than stock and there's hardly any understeer anymore like there used to be.
I'm sure that the castor is adjustable (AWD) as the front wheels seem to be sitting further forward than I remember.

It's a natural consequence that when you install lower springs, the amount of negative camber will increase. I had the exact same thing happen on my car. What I mean is that the camber comes naturally - it does not come down to how the suspension was installed, and it cannot be adjusted without aftermarket kits.

Red's correct about the effects of lowering on your alignment. Camber & caster will be affected. By how much varies from car to car, depending on components used etc. Caster & camber are only adjustable using aftermarket kits. Both options are available for the front but only camber for the rear.

As for your issues with your previous tyres rubbing it could be the width of the tyres too. As I stated previously very few tyres are actually mm perfect to their stated size. The KU31 is a perfect example of this, being 6mm over 235mm (241mm) on an 8.5" rim. The 245/40/18 KU31 is only 2mm over sized & only measures 6mm wider than the 235. There are plenty of cases of people only being able to run certain tyres on their cars due to clearance issues.

Another possible reason for your previous issues could be that the previous alignment may not have been that good?

I thought our stock front suspension had a few degrees of camber play....

I thought our stock front suspension had a few degrees of camber play....

Unfortunately not...

Unfortunately not...

Typical Dean tellin me fibs!

Yes allscal. you are right. The previous wheel alignment I had done @ Bob Jane and the guy didn't seem to know what he was doing on my car. Suffice to say I won't be going back there in a hurry. Beaurepairs lads are much better down my neck of the woods. car was sweet after they worked on it.