Apex 18 x 9 Et 30 on E85

[Haggisman]

Hi, sure this info is somewhere on here but would appreciate feedback.
Looking at Apex 18 x 9 ET 30 square set up on Msport suspension 2003 E85. Advice on Tyre size at front, concerns are rubbing when applying lock.
Any opinion on 17 x 9 ET30, lighter wheel but disadvantages?
Many thanks.

 

[mr wilks]

9j et 30 front on your E85 is not a good idea without fitting a tyre with stretch perhaps 225 40 ? 235 35 ? i can't see how you wouldn't foul the arch on lock or compression :? 8.5j et34 i would class as the borderline of tolerance , any wider or lower offset would be iffy & 9j et30 is doing both .
Pity you can't borrow a rear 224 as they are those numbers though the 255 40 18 tyre would 100% remove the arch liner or throw a 30mm spacer behind a 108 or mv2 which will give you the position the wheelface would be at

 

[Haggisman]

9j et 30 front on your E85 is not a good idea without fitting a tyre with stretch perhaps 225 40 ? 235 35 ? i can't see how you wouldn't foul the arch on lock or compression :? 8.5j et34 i would class as the borderline of tolerance , any wider or lower offset would be iffy & 9j et30 is doing both .
Pity you can't borrow a rear 224 as they are those numbers though the 255 40 18 tyre would 100% remove the arch liner or throw a 30mm spacer behind a 108 or mv2 which will give you the position the wheelface would be at

Thanks Mr Wilks, limited supplies of wheels over here in NZ, don’t want to make a mistake.

 

[Ed Doe]

Hi, sure this info is somewhere on here but would appreciate feedback.
Looking at Apex 18 x 9 ET 30 square set up on Msport suspension 2003 E85. Advice on Tyre size at front, concerns are rubbing when applying lock.
Any opinion on 17 x 9 ET30, lighter wheel but disadvantages?
Many thanks.

18x9 is very aggressive for a non-M.
I ran M224s on my si which are 8j et42, with a 10mm spacer (making them effectively ET 32) - they fit well but rubbed away a bit of the outer edge of the arch liner behind the headlight. Tyres were oe si sizes - 225/40/18. They were fine in terms of clearance to the damper body but I doubt 9j would clear it!

Edit - try willtheyfit.com - very helpful working out what you can run.

I took some snapshots of the comparison between my m224 with 10mm spacer and oe si tyre size, and what you're proposing to run with a guesstimate of tyre size...





The wheels I'm pretty sure will protrude out of the arch - it'll be bloody close either way, and the measurement from inner face to strut is also something that definitely needs checking!

 

[Haggisman]

Hi, sure this info is somewhere on here but would appreciate feedback.
Looking at Apex 18 x 9 ET 30 square set up on Msport suspension 2003 E85. Advice on Tyre size at front, concerns are rubbing when applying lock.
Any opinion on 17 x 9 ET30, lighter wheel but disadvantages?
Many thanks.

18x9 is very aggressive for a non-M.
I ran M224s on my si which are 8j et42, with a 10mm spacer (making them effectively ET 32) - they fit well but rubbed away a bit of the outer edge of the arch liner behind the headlight. Tyres were oe si sizes - 225/40/18. They were fine in terms of clearance to the damper body but I doubt 9j would clear it!

Thanks Ed, hard to buy anything off the shelf here so trying to see what I can make work around availability in the country.

 

[Ed Doe]

Yeah fair enough! You may be able to switch to z4m hubs and struts, you'd need M wishbones too so might end up pricey. I know of some Ms in the US running 9.5j fronts but think the arch liners were removed and I know they were running adjustable camber top mounts with a lot of negative camber to make it work! Fine for a track car, not so great for the road!!

Edit - image below shows the wheel and tyre specs of the car I was thinking of

 

[Haggisman]

Yeah fair enough! You may be able to switch to z4m hubs and struts, you'd need M wishbones too so might end up pricey. I know of some Ms in the US running 9.5j fronts but think the arch liners were removed and I know they were running adjustable camber top mounts with a lot of negative camber to make it work! Fine for a track car, not so great for the road!!

Edit - image below shows the wheel and tyre specs of the car I was thinking of Screenshot_20200715_085117.jpg

Back to the drawing board. Thanks for the input

 

[Haggisman]

Hi, sure this info is somewhere on here but would appreciate feedback.
Looking at Apex 18 x 9 ET 30 square set up on Msport suspension 2003 E85. Advice on Tyre size at front, concerns are rubbing when applying lock.
Any opinion on 17 x 9 ET30, lighter wheel but disadvantages?
Many thanks.

18x9 is very aggressive for a non-M.
I ran M224s on my si which are 8j et42, with a 10mm spacer (making them effectively ET 32) - they fit well but rubbed away a bit of the outer edge of the arch liner behind the headlight. Tyres were oe si sizes - 225/40/18. They were fine in terms of clearance to the damper body but I doubt 9j would clear it!

Edit - try willtheyfit.com - very helpful working out what you can run.

I took some snapshots of the comparison between my m224 with 10mm spacer and oe si tyre size, and what you're proposing to run with a guesstimate of tyre size...

Screenshot_20200715_084028_com.android.chrome~2.jpg
Screenshot_20200715_084046_com.android.chrome~2.jpg
Screenshot_20200715_084039_com.android.chrome~2.jpg

The wheels I'm pretty sure will protrude out of the arch - it'll be bloody close either way, and the measurement from inner face to strut is also something that definitely needs checking!

Many Thanks Ed for taking the time to reply, very helpful.

 

[gIzzE]

Apex have a great guide on their site showing different wheel and tyre options and which may rub...

https://support.apexraceparts.com/hc/en-us/articles/360048839813-E85-86-Z4-Non-M-Wheel-Tire-Fitment-Guide