Hi, does anyone know the sizes for a square setup for the Z4 coupe please? Would 225/40/18 on 8j wheels with et40 offset work? Thanks.
Craig
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Square setup
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craiginuk
- Member
- Posts: 130
- Joined: Tue Apr 11, 2023 1:37 pm
- Location: Sevenoaks, Kent
Square setup
2007 3.0si E86 Coupe - Carbon Black
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enuff_zed
- Lifer
- Posts: 14871
- Joined: Wed Oct 26, 2016 11:05 am
- Location: Attleborough, Norfolk
Square setup
You don't want to go square mate. Bumpy as hell!
Round is definitely your best bet.
Right, back to the vino.
Sorry.
Round is definitely your best bet.
Right, back to the vino.
Sorry.
HQ of 'Norfolk Zed Rescue'.
Always happy to help if I can.
If the forum helped you, why not help the forum back. Thats the Z4 way!
Always happy to help if I can.
If the forum helped you, why not help the forum back. Thats the Z4 way!
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Mr Tidy
- Legend
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- Joined: Wed Jul 02, 2014 12:18 pm
- Location: North West Surrey
Square setup
Yes Craig, they would work fine.
The OE wheels for SE Coupes were Style 200 8J x 17 ET47 front and rear.
I ran E89 18s on my previous Coupe with standard Sport suspension that were 8J x 18 ET29 front and 8.5J x 18 ET40 rear with no issues.
The OE wheels for SE Coupes were Style 200 8J x 17 ET47 front and rear.
I ran E89 18s on my previous Coupe with standard Sport suspension that were 8J x 18 ET29 front and 8.5J x 18 ET40 rear with no issues.
Coupes because stunning!
Current - Silver Grey MC, Imola Red heated Nappa & carbon trim. Aeros, H & R Coil-overs, 224s, OE Strut brace, Nav, cup-holders, DSP Hi-Fi, pdc, cruise, MFSW, no CDV! E90 330i daily
Gone - Montego Blue
Gone - Ruby Black
Current - Silver Grey MC, Imola Red heated Nappa & carbon trim. Aeros, H & R Coil-overs, 224s, OE Strut brace, Nav, cup-holders, DSP Hi-Fi, pdc, cruise, MFSW, no CDV! E90 330i daily
Gone - Montego Blue
Gone - Ruby Black
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MTD
- Newbie
- Posts: 27
- Joined: Wed Jun 22, 2022 10:02 am
- Location: Dorchester
Square setup
I'm running a 8inch square set up on my coupe. Last year ran standard ET47 on the front and ET40 on the rear. Have now fitted coilovers and although the fronts cleared they looked very tight, so put the ET47 on the front and fitted the ET40 on the back with 15mm spacers. Resulting in a track increase of 14/15mm front and back. Both set ups worked well.
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craiginuk
- Member
- Posts: 130
- Joined: Tue Apr 11, 2023 1:37 pm
- Location: Sevenoaks, Kent
Square setup
Thanks Guys, I have a set of wheels with 225/40/18 on 40mm offset on the way 
2007 3.0si E86 Coupe - Carbon Black
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Mr Tidy
- Legend
- Posts: 23898
- Joined: Wed Jul 02, 2014 12:18 pm
- Location: North West Surrey
Square setup
They will be fine.
Now I think about it I sold a set of CSL Reps that were 8J x 18 ET40 to another forum member and I've seen a few photos of them on his car!
Now I think about it I sold a set of CSL Reps that were 8J x 18 ET40 to another forum member and I've seen a few photos of them on his car!
Coupes because stunning!
Current - Silver Grey MC, Imola Red heated Nappa & carbon trim. Aeros, H & R Coil-overs, 224s, OE Strut brace, Nav, cup-holders, DSP Hi-Fi, pdc, cruise, MFSW, no CDV! E90 330i daily
Gone - Montego Blue
Gone - Ruby Black
Current - Silver Grey MC, Imola Red heated Nappa & carbon trim. Aeros, H & R Coil-overs, 224s, OE Strut brace, Nav, cup-holders, DSP Hi-Fi, pdc, cruise, MFSW, no CDV! E90 330i daily
Gone - Montego Blue
Gone - Ruby Black