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Thread: Superleggeras or Irmscher?

  
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    Superleggeras or Irmscher?

    Might B able to get my hands on some 18" OZ Superleggeras for £600 or less.
    Unsure tho' cos i'm worried about fit.
    Got a letter in the post form Irmscher UK today, telling me i'd need arch modification even for 17s with any kind of drop. (and German lego-like instructions on how to do it )
    Anyone else got 18s on Astra G with 30/45mm drop? Any probs?

    Cheers Steve
    1.6 16v Sport, Red, Debadged, Boot spoiler, Sportex 3" Exhaust, RamAir Induction, Irmy grille

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    Arch mods?!

    17's are most defintely fine and so are most 18's so that's not true at all.

    You need offset as close to et49 as possible.

    My et47 17's are fantastic.
    :: Computer repairs, Upgrades and Sales in the Greater Manchester Area ::

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    i was runing 18's on the coupe with et35 fine the 888 has et 35 i think

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    They would be fine on a coupe but not sure on a hatch, especially with a drop. Just remember that the 888 had arch mods to fit the OZ 17" alloys under the arches, but that is dropped 30mm from standard.

    Let us know if you don't go for it mate as I wouldn't mind some 18" OZ's. Currently have some 17" OZ superturismos waiting to go on.

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    Will do.
    I can't get this different wheels will/won't pit palava! :?
    If the wheels get bigger, tyres get smaller! Hence if you consider them together as a cylinder, it doesn't change size!!! In fact sometimes it gets smaller!
    Can understand width and ET being an issue, but we're talking mm's.
    Enlightenment anyone?
    1.6 16v Sport, Red, Debadged, Boot spoiler, Sportex 3" Exhaust, RamAir Induction, Irmy grille

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    When you consider by how small a margin the wheels miss the arch when they are under full load, then millimeters make a difference. I personally think there is more tollerance in the coupe rear arches than the hatch arches. I'm currently running ET38 on a 30mm drop with no problems, but that is on a coupe. I know people have said in the past that on anything lower than ET40 and lowered they have scrubbage, but mainly on hatches.

    I would also check the width of the OZ's, as they are normally wider than standard Vauxhall alloys. A 15 inch alloy may only be 6 inches wide, where your 17 inch Vauxhall alloys are either 7 or 7.5 inches wide, and OZ are normally 8 to 9 inches wide. These small differences all add up to cause big problems.

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    hardly any OZ wheels come in ET friendly sizes ( ithink only the titians do) hense why the 888 had arch extentions.


    Unless they have broaden there range they will not fit.
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    I personally like Superleggeras, they are a well finished light weight wheel, the split rims are especially nice,
    like you say, you compensate for a larger wheel by reducing the side wall ratio

    I'm sure a 225-35-18 is about the same dia as a standard 17", if you were that worried you could drop to a 215 and save yourself a few mm

    try this for frigging with tyres

    http://www.tyresave.co.uk/tyresize.html

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    They're et42 PCD 4x108 originally on a 306.
    Is that PCD the same as my 4 stud on a 5dr 99 Astra or is it 4x100?
    Also, bit of a rumour I heard, is the 5dr more forgiving than the 3dr when it comes to arch rubbing?

    Cheers guys
    1.6 16v Sport, Red, Debadged, Boot spoiler, Sportex 3" Exhaust, RamAir Induction, Irmy grille

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    5 door does have a little more space yes....the ET is great on those wheels but the PCD is wrong so they wont fit.

    4 stud is PCD 4x100...........what width are they BTW?
    Been apart of the inner circle since 2001
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