Maximum front/rear tyre width difference for 4motion?

[dylan8]

I guess the front would be the same, not sure about the offset on my wheels but they are 18x8 with 225/40 on them and i have about 5 mm clearance for the fronts to the strut.

What offset do you have on those...?

[Coralon]

No idea to be honest as I have never really looked at offset and things like that with wheels. It is up on stands atm so I could pop one off and have a look at the rim to see if it is marked anywhere. This is the only place I could find them, I am sure there are others but gives you an idea... wheels were on the car when I bought it.

Audi RS4 Sport Rims 18x8

Found them somewhere else, seems they come in an offset of 30 or 35, as I said not sure which I have.

[dylan8]

ill go with et35 or 45 then.
Its all about offset/width/tyre size when it comes to fitment, so without all 3 its pointless info...

[dylan8]

The wheels are 17x9.5 up front and 17x11.5 out back.I have a 205 45 up front and a 215 45 in the rear and it doesn't mess with the AWD at all.

I asked the question of how someone was running staggered diameter tyres on a Mk5 R32, this is the specs he gave me.

[kapowww]

I asked the question of how someone was running staggered diameter tyres on a Mk5 R32, this is the specs he gave me.

Interesting.. But that's a heck of a lot of stretch!

[dylan8]

yes, but you could apply something like that to your car with less stretch..
say a 215/45 and 225/45 if the rear is going to stretch lots more. dont quote those numbers... just a example...

[kapowww]

yes, but you could apply something like that to your car with less stretch..
say a 215/45 and 225/45 if the rear is going to stretch lots more. dont quote those numbers... just a example...

Yeah the only reason why I want to go 235 all round now is that it's the cheapest size lol. The front will look a bit weird but I don't think it needs stretch.. If I can find some 215s or 225s for the same price at the front I'll go those, but definitely will go 235s at the rear.

[dylan8]

dont cheap out on baller wheels lol.
if your going 235 in the rear maybe a 225 front? maybe you could get some used 235s to make the rolling diameter smaller

[kapowww]

dont cheap out on baller wheels lol.
if your going 235 in the rear maybe a 225 front? maybe you could get some used 235s to make the rolling diameter smaller

Yeah I just called up and seems like the 225s are only an extra $19 each. I think they're the closest to my original wheels anyways to get the most accurate speedo reading.

lol maybe first put the 235s on the front, disable the AWD and do some burnouts.

You had 235s on 18x8.5 +35 right? They fit under the guards normally?

[kapowww]

Since I understand this subject a bit better now I've improved my Google searches =]

I found a thread stating that with the Haldex it can take a slight difference in F-R rolling diameters/circumferences but you shouldn't go above 3% variation. So the 225/40/18 and 235/40/18 combo is only about 1.2% difference so should be fine.. Also seeing other people experiencing no problems is a good sign!

P.S. I shoulda not tried to be so cool and just got normal wheels...

[dylan8]

I had 225/35s on a 19x8.5 et35 and I trashed in the inside of them. rubbed on the coilovers and inside of the guard.
Now run 215/40 on a 18x8.5et30 and its prefect daily specs imo.

Go for the 225 and 235 then, your rear is a lot wider from memory so a bit more stretch should help.

[kapowww]

I had 225/35s on a 19x8.5 et35 and I trashed in the inside of them. rubbed on the coilovers and inside of the guard.
Now run 215/40 on a 18x8.5et30 and its prefect daily specs imo.

Go for the 225 and 235 then, your rear is a lot wider from memory so a bit more stretch should help.

Are your front guards rolled? Just ordered my tyres today and will get them put on on Saturday. Finally! I've had my coilovers and wheels sitting around for nearly 3 months..

[dylan8]

nope. stock as a rock.
should have put the coils in already!!
If you want to talk wheels and stuff ill be down melbourne on the w.e

[kapowww]

I didn't want to put my coils on until I sorted out warranty issues with the dealer I bought the car off.. It's still unresolved, but the 3 month warranty is up but now it's in the hands of Consumer Affairs.

Ahh damn I'm busy this weekend.. Gotta get my tyres and service my parents' car. They've been driving their Yaris around HEAPS for over a year without a service. *facepalm* Next time there's a cruise I'll be down for sure!

[Manaz]

For what it's worth, when I had the competition controller in my Bora, the rear diff was unhappy with 235/45R17 fronts and 225/45R17 rears. Once I fixed that, I replaced the haldex fluid and filter entirely, just to be safe.

The stock controller's a lot more forgiving as it doesn't engage the rear wheels anywhere near as often, but once engaged, you'll have the same issues I did where the difference in speed between front and rear axles will cause a bit of bind in the diff, which'll make it rather unhappy.