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18 x 8.5 / 9.5 offset

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  • 18 x 8.5 / 9.5 offset

    Can anyone recommend offsets for 18 x8. 5 up front and 9.5 rear?

    Wheels getting done to a custom offset so need to get it right!
    1996 Audi S2 - 295bhp and 326lb/ft - Complete Rebuild Project

    1994 Audi 80 - 2.0 8v (slow but reliable!)

  • #2
    What car?
    00 S8
    94 RS2
    94 80 Competition
    88 urquattro 20vt

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    • #3
      Assuming coupe... I'm going through much the same...

      For the front...8.5J on an 18, I understand ET32 fits... just, but even ET30 rubs on the arch.

      With an 8.5J rear, ET20 is good... so 9.5J... probably means ET 32 on the rear too... (If I've got my head round it properly...!)
      Honda CBR 1100XX Blackbird Turbo....undergoing major changes.....
      S2 Coupe... bit easier off the line...
      '03 ZX12-R daily hack.... lots of nice bolt ons...

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      • #4
        I had 18x8.5” et37 wheels then fitted 15mm spacers all round so et22 was my final setup if driven on smooth roads I would just about get away with it but on bumpy roads not a chance so 10mm spacers would of been a lot better with extra 5mm clearance also I had big brakes which needed spoke clearance so that didn’t help.

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        • #5
          I tried an 8.5" et45 with 20mm spacers, so effective et25. Was very close to the track rod arm on the front and about 15mm clearance to the 996 brakes.

          Going to order up et35s I think.

          Tempted to drop to 8" for some extra clearance to play with.

          Haven't tried at the rear but easier to deal with I think.
          1996 Audi S2 - 295bhp and 326lb/ft - Complete Rebuild Project

          1994 Audi 80 - 2.0 8v (slow but reliable!)

          Comment


          • #6
            Yes, coupe by the way
            1996 Audi S2 - 295bhp and 326lb/ft - Complete Rebuild Project

            1994 Audi 80 - 2.0 8v (slow but reliable!)

            Comment


            • #7
              It depends on the camber, if you got rolled front fenders, the tire profile (height) and vehicle height.

              On my coupe i had 18" x 8.5" ET 38 with 10 mm spacer and i belive 225/40/18 tires and yellow Koni and lowering springs. Not rolled fendes.

              You can fit 18" x 9.5" on the front with rolled lip on the fenders. Maybe you need 1.5-2" camber and small tires (low profile). You will hit the tie rod end first. I did some measuring on my car. I will post them if i find it.

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              • #8
                have you looked at tyre sizes yet - if you go 8.5 front 9.5 rear?

                Also interested in this...


                Edit: Looks like :

                8.5J fronts
                10J rears

                Front - 235.45 R18
                Rear. - 265.35 R18

                With new tyres only 7mm circumference difference...
                Last edited by LHD_Kid; 12th April 2019, 19:28.
                Honda CBR 1100XX Blackbird Turbo....undergoing major changes.....
                S2 Coupe... bit easier off the line...
                '03 ZX12-R daily hack.... lots of nice bolt ons...

                Comment


                • #9
                  I've decided for same front and rear now.

                  I was going for 225 for 235s I think
                  1996 Audi S2 - 295bhp and 326lb/ft - Complete Rebuild Project

                  1994 Audi 80 - 2.0 8v (slow but reliable!)

                  Comment


                  • #10
                    pussy.
                    Honda CBR 1100XX Blackbird Turbo....undergoing major changes.....
                    S2 Coupe... bit easier off the line...
                    '03 ZX12-R daily hack.... lots of nice bolt ons...

                    Comment

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