Need spacer size confirmation new square wheels/tires

Faredo · 10-01-2018, 07:24 PM

Currently on style 189, (8x18 front ET 34 / 8.5x18 rear ET 37)
Using 15mm front and 20mm rear spacers

Fitment is great and I would like to keep the rear exactly like it is. The front MIGHT be able to come out just a bit.

Going to a 18x9 ET 30 square. I haven't ordered tires yet but probably going 255/35.

If im using the calculator correct, do I need no spacer up front .it would be 2mm more than what i run now with 9mm less clearance near the strut (on ST coil overs) ,
and a 7mm spacer in the rear, if its made?

thanks.

b92 · 10-02-2018, 04:54 PM

18x9 squared is a good fit as long as you're non-x. I ran 18x9et30 in front on my pre-LCI E92 and inner clearance was about 1-2mm with my KW coilovers, there were some tire marks on the coilovers after 2k miles but I never noticed any rub. That was with 235/40 tires so you might need a tiny spacer here. The ST coilovers might be a little smaller than the KW version (same manufacturer), you will know right away when you try to put the wheel on!

For rear, with 255/35 tires you should be able to fit a 12mm spacer with just a little bit of camber, which you may already have if you're lowered. This will give a more flush look and will match the fronts better. I'm not too current on the spacer market, but I remember there being hub issues for spacers in the 7-11mm range, I would look into this.

Faredo · 10-02-2018, 07:17 PM

Quote:

Originally Posted by b92

18x9 squared is a good fit as long as you're non-x. I ran 18x9et30 in front on my pre-LCI E92 and inner clearance was about 1-2mm with my KW coilovers, there were some tire marks on the coilovers after 2k miles but I never noticed any rub. That was with 235/40 tires so you might need a tiny spacer here. The ST coilovers might be a little smaller than the KW version (same manufacturer), you will know right away when you try to put the wheel on!

For rear, with 255/35 tires you should be able to fit a 12mm spacer with just a little bit of camber, which you may already have if you're lowered. This will give a more flush look and will match the fronts better. I'm not too current on the spacer market, but I remember there being hub issues for spacers in the 7-11mm range, I would look into this.

Great info! Would this be with 255 35s or should I go with a skinnier tire?

Faredo · 10-10-2018, 10:00 AM

in case anyone is searching.
I needed a 5mm spacer up front to let the tire clear the spring.
Rear I was able to use a 15mm spacer after a mild roll to the rear of fender.

b92 · 10-10-2018, 11:11 AM

Quote:

Originally Posted by Faredo

in case anyone is searching.
I needed a 5mm spacer up front to let the tire clear the spring.
Rear I was able to use a 15mm spacer after a mild roll to the rear of fender.

Awesome! Thanks for following up. I just saw that you replied to my post with a question and I never got back to you, my b.

Any rubbing in rear? Looks tight

Faredo · 10-10-2018, 11:25 AM

Quote:

Originally Posted by b92

Awesome! Thanks for following up. I just saw that you replied to my post with a question and I never got back to you, my b.

Any rubbing in rear? Looks tight

yes, if you see the reflection of my garage door line in the fender, there was a lot of rubbing there. Had to massage it out with a roller. Still getting the slightest of rubs on big bumps but ill try to roll it out more this weekend.

10-10-2018, 12:41 PM

Looks great OP

No rubbing up front?

b92 · 10-10-2018, 01:30 PM

Quote:

Originally Posted by Faredo

yes, if you see the reflection of my garage door line in the fender, there was a lot of rubbing there. Had to massage it out with a roller. Still getting the slightest of rubs on big bumps but ill try to roll it out more this weekend.

Looks like you can go a little bit farther with negative camber, my pre-LCI coupe went to -3d without needing a camber kit. Could always downsize to a 12mm spacer, not sure how that will look in comparison to the front fitment.

Faredo · 10-10-2018, 04:23 PM

Quote:

Originally Posted by b92

Looks like you can go a little bit farther with negative camber, my pre-LCI coupe went to -3d without needing a camber kit. Could always downsize to a 12mm spacer, not sure how that will look in comparison to the front fitment.

Thanks for the advise, went ahead and picked up a 12mm. I really dont want to mess with camber if I can get away with it. my tire wear is just slightly heavier on the inside.

Faredo · 10-15-2018, 08:18 AM

update. 12mm spacer in and zero rubbing. this is with a minor pull to the rear fenders. can probably be done with the old phone book method.

10-01-2018, 07:24 PM	#1
Faredo Lieutenant 312 Rep 404 Posts Drives: 335i Join Date: Sep 2016 Location: Arkansas iTrader: (0)	Need spacer size confirmation new square wheels/tires Currently on style 189, (8x18 front ET 34 / 8.5x18 rear ET 37) Using 15mm front and 20mm rear spacers Fitment is great and I would like to keep the rear exactly like it is. The front MIGHT be able to come out just a bit. Going to a 18x9 ET 30 square. I haven't ordered tires yet but probably going 255/35. If im using the calculator correct, do I need no spacer up front .it would be 2mm more than what i run now with 9mm less clearance near the strut (on ST coil overs) , and a 7mm spacer in the rear, if its made? thanks. __________________ Mods related to trouble shooting posts: Stock Turbos, MHD OTS V7 stage 2+ 93 oct, VRSF Downpipes, VRSF Relocated inlets, CTS Turbo 7" Intercooler, Tial BOV with upgraded line 5.56mm, index 12 injectors, A/T OEM Flash.
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10-02-2018, 04:54 PM	#2
b92 Major 540 Rep 1,040 Posts Drives: E92 335is, 6MT Join Date: Feb 2016 Location: Rhode Island iTrader: (2)	18x9 squared is a good fit as long as you're non-x. I ran 18x9et30 in front on my pre-LCI E92 and inner clearance was about 1-2mm with my KW coilovers, there were some tire marks on the coilovers after 2k miles but I never noticed any rub. That was with 235/40 tires so you might need a tiny spacer here. The ST coilovers might be a little smaller than the KW version (same manufacturer), you will know right away when you try to put the wheel on! For rear, with 255/35 tires you should be able to fit a 12mm spacer with just a little bit of camber, which you may already have if you're lowered. This will give a more flush look and will match the fronts better. I'm not too current on the spacer market, but I remember there being hub issues for spacers in the 7-11mm range, I would look into this. __________________ 2011 E92 335is, Space Grey/Coral Red, 6MT. RB 2+, Wedge tuned. E85 PI coming soon.
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10-10-2018, 10:00 AM	#4
Faredo Lieutenant 312 Rep 404 Posts Drives: 335i Join Date: Sep 2016 Location: Arkansas iTrader: (0)	in case anyone is searching. I needed a 5mm spacer up front to let the tire clear the spring. Rear I was able to use a 15mm spacer after a mild roll to the rear of fender. __________________ Mods related to trouble shooting posts: Stock Turbos, MHD OTS V7 stage 2+ 93 oct, VRSF Downpipes, VRSF Relocated inlets, CTS Turbo 7" Intercooler, Tial BOV with upgraded line 5.56mm, index 12 injectors, A/T OEM Flash.
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10-10-2018, 12:41 PM	#7
FCobra94 Guest 0 Rep n/a Posts Drives:	Looks great OP No rubbing up front?
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10-15-2018, 08:18 AM	#10
Faredo Lieutenant 312 Rep 404 Posts Drives: 335i Join Date: Sep 2016 Location: Arkansas iTrader: (0)	update. 12mm spacer in and zero rubbing. this is with a minor pull to the rear fenders. can probably be done with the old phone book method. __________________ Mods related to trouble shooting posts: Stock Turbos, MHD OTS V7 stage 2+ 93 oct, VRSF Downpipes, VRSF Relocated inlets, CTS Turbo 7" Intercooler, Tial BOV with upgraded line 5.56mm, index 12 injectors, A/T OEM Flash.
	Appreciate 1 Quote