Widest wheels (and offsets) for functionality NOT stance

Discussion in 'Technical' started by NAzx, Feb 15, 2012.

  1. NAzx

    NAzx Member

    Hey all, was just wondering what the widest wheels front and rear would be and what offsets they would need to be? I want to keep standard camber if possible! Car is standard height and im after functionality not a stance look, something like a supercar with 355 on the rear or something. Although from research im lead to believe the largest you can fit on the rear is 285 and offset would be around +40 something?? Not too sure about the front but i'd hazard a guess at 245 or 255 at +30 something? Any help is appreciated! :) Pics would also be helpful so i can get an idea on what it will look like if possible! Cheers
  2. bRACKET

    bRACKET Do Right Dean

    You can get 305's on, especially if your staying 4x4...

    Anti knows knows more about it than me.
  3. AndyMac

    AndyMac Better than you

    I run 295 on a 10" with a +38 offset and -0.5deg camber at the rear with 0 toe. And that's as low as you go before it impacts your handling.

    Guards have been rolled, you won't go any larger than that without some more neg camber.

    355's is going to require 13" wheels...need some body work on that puppy.

    GOTTAGO New Member

    I run 295 30 18 aswell, 18x10.5 +42 No camber and legal low, will go 305 next set and still romm for 11" wide rims.
  5. AndyMac

    AndyMac Better than you

    2+2 or 2+0? There is quite a difference on what you can run

    Also, to the OP, what power are you running and what brakes are you using and what are you willing to spend on tyres? The largest shoe you can fit isn't neccesarily "functional". If your only making 300-500hp at the wheels then a 285 to 295 on the rear is plenty. If you have an NA, then 255 is plenty. If you only want to spend $600 a set of tyres, then 255's is where you should look.

    GOTTAGO New Member

    2+2 Have a little more room
  7. AndyMac

    AndyMac Better than you

    No, you have less. You have the filler pipe in the way. I'd like to see a 305 with 0 camber on a +42 rim fit in there.

    GOTTAGO New Member

    Filler pipe is in there in both a 2+2 and a 2+0, Ive still got 20mm to play with.
  9. Kieren

    Kieren Active Member

    300hp, standard size brakes.

    It will be nice to see the old car with some new shoes on her Lee!
  10. AndyMac

    AndyMac Better than you

    Well no, the filler pipe on the 2+2 is in a different spot seeing the tank is in the back rather than in front of the wheels. I've ripped the filler shield off with 295 semi's on due to rubbing issues with NO hicas with a +38, so I can't see a 305 fitting with your offset, happy to be proven wrong. And "fitting" means under full compression. A 2+0 will run a wider wheel.
  11. Egg

    Egg ....


    265 on the rear is the best bet
    275 or 285 will squeeze under if you get the offset perfect.
    I can squeeze a 295 under the rear but it rubs the liners when the suspension is compressed, without rolling guard.
    Also consider some tyres are wider then comparable tyres even though they state the same size.
    Stick to 265 less you want to roll your guards ever so slightly I reckon.
    Finally, 265's are relatively cheap in all brands and the price hike for anything bigger is not worth it IMHO.
  12. Moo

    Moo Shocking...

    I'll lay it out for you clean and simple...

    Scrap all your idea's of 355 width tyres..
    If you have an N/A, no offense but you won't need to go past anything wider than a 9.5" rim on the back. And run between 8-9" on the front. Unless you're doing speeds of up to 160KM/h around sharp turns. My 275/30x19's can hold my car my than easily hitting sharp bends at 120KM/h, tested by moi. Doesn't feel like it wants to let go, either.

    Remember... The stupidly wider you go, it takes more grunt to get them to get up and go. For example, stock N/A with standard wheels and tyres would get a faster track time than a stock N/A with 295/25x18's (with a standard low rev launch.) Obviously the wider ones support a little higher rev launch.. And I mean a little.

    Stagger your wheels, go wider on the back..

    18x8.5, 18x9.5
    19x8.5, 19x9.5 or 19x10... So on so forth.

    For an 18 the most common wider size tyre recommended for 18x9.5 is 265/35x18
    For a 19 the most common wider size tyre recommended for 19x9.5 is 275/30x19

    Then on the front runners you'd be rolling on like a 235/35x19 or a 235/40x18
    It keeps the overall rolling diameter as close as possible...
    If I wasn't so tired I'd give you millimeter specifics on each size and the best combo pair.

    I ceebs reading any more, I'll edit this where needed tomorrow.
    Last edited: Feb 16, 2012
  13. NAzx

    NAzx Member

    Alright i've got 255/45?/zr17s on the rear now and 235 fronts +35 offset. i was going to put the rears to the front and get 18x10s for the rear at +35. My questions are will the 255s fit on the front and will the 18x10s fit in the rear guards with little to no poke? With offset does the extra inches go towards the middle of the car if staying with +35 so they will still be at the same place at the guard but just further inwards? If you can make sense of this, answers are appreciated. Also the car will be staying 4x4 height for quite a while. Cheers
    Last edited: Feb 19, 2012
  14. SRB-2NV


    LOL for an NA i wouldn't go wider then 235's IMO.
  15. NAzx

    NAzx Member

    Hey everyone the car in question is NOT a NA it is a TT sorry for confusion. And don't worry about what power it has i just need them to fit as it will be getting more power down the track. Cheers
  16. AndyMac

    AndyMac Better than you

    They will fit fine. Might need a little guard rolling pending on tyre size on the rear.
  17. NAzx

    NAzx Member

    Alright so i've gone ahead and got some wheels, 18x10 +36 and tyres 295/30/18. Test fit was done and its tight, my question now is with it being so close will i need to delete HICAS? How much do the wheels actually turn back there?
  18. Anti

    Anti 14.7 x 14.7 = 44.1

    HICAS won't be an issue if you have more than 3-4 mm clearance. The wheels don't turn that much.
  19. Benny_C

    Benny_C About as subtle as...

    Firstly you need to ask yourself if you want straight, safe, even wearing and practical wheels/tyres for your zed.

    ...or if you're happy to run widths & offsets that may restrict you with tyre width, and have to run angled camber just to squeeze them under the guards.

    ^^ the above 2 scenarios change EVERYTHING when it comes to what offset, tyre width and modifications are involved in fitting these wheels/tyres.
    Answer this first, then we can give you "practical" answers to your question.

    p.s. Andymac has given the most practical posts in this thread so far. Listen to that man. He knows his shit. :zlove:
  20. koobaz

    koobaz New Member

    Found this thread on google.. here goes..
    Everyone is telling me different things.

    I have a 2+2 TT and I want to run 19s
    Could i run 19x8.5 +30 on front and
    19x9.5 +22 on rear ? Or will they stick out past the fenders?

    I want them to tuck a little bit under the guards. I have coilovers fitted and if need be can buy arms.. dont mind a little camber but nothing stupid.

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