Is 9.5 Front and 11.0 Rear too big of a spread?

Juicehead · 10-04-2014, 04:48 PM

So, I just ordered some Forgestar F14 SDC in 9.5/11.0 and now I am not sure I should have made that 1.5" spread....

Some people go with 10" in the front but I have read that it does protrude outside the fender a bit in the SDC.

I cannot find a definitive answer on front tire size to match a 295/30/19 rear on an 11, and 9.5 front, 265/30 or 275/30? I plan to go with the Hankooks

any input will be greatly appreciated...

1MOREMOD · 10-04-2014, 04:50 PM

275-30 would be a tough fit.

M3SQRD · 10-05-2014, 09:36 AM

275/30-19 is only 0.2" different from the radius of the stock 245/35-19. For a non-square setup, a 275/295 setup isn't bad.

1MOREMOD · 10-05-2014, 09:46 AM

Quote:

Originally Posted by M3SQRD

275/30-19 is only 0.2" different from the radius of the stock 245/35-19. For a non-square setup, a 275/295 setup isn't bad.

It's also 30 mm wider which will likely rub. I had 265-30-19 with -2.5 camber and it touched slightly already.

redline9001 · 10-05-2014, 10:02 AM

i have 9.5" front and 11" rear and it is fine depending on your offsets.

But i run 255 front and 295 rears

M3SQRD · 10-05-2014, 10:02 AM

Quote:

Originally Posted by 1MOREMOD

It's also 30 mm wider which will likely rub. I had 265-30-19 with -2.5 camber and it touched slightly already.

What F offset were you using? With -2.5 deg of F camber I can run a 9.5et17 with a 275 tire without rubbing or making contacting with the strut body/spring perch (aftermarket).

blast1st · 10-05-2014, 10:45 AM

255/35 in front is the safest way to go without rubbing.

LarThaL · 10-05-2014, 10:53 AM

Quote:

Originally Posted by Juicehead

So, I just ordered some Forgestar F14 SDC in 9.5/11.0 and now I am not sure I should have made that 1.5" spread....

Some people go with 10" in the front but I have read that it does protrude outside the fender a bit in the SDC.

I cannot find a definitive answer on front tire size to match a 295/30/19 rear on an 11, and 9.5 front, 265/30 or 275/30? I plan to go with the Hankooks

any input will be greatly appreciated...

I actually think 9.5/11 is a great set-up.

I would go: 19x9.5 ET25 with 255/35/19 front & 19x11 ET30 with 295/30/19 rear.

LarThaL · 10-05-2014, 10:55 AM

Quote:

Originally Posted by blast1st

255/35 in front is the safest way to go without rubbing.

255/35 may rub if the offset is too aggressive

1MOREMOD · 10-05-2014, 11:22 AM

Quote:

Originally Posted by M3SQRD

What F offset were you using? With -2.5 deg of F camber I can run a 9.5et17 with a 275 tire without rubbing or making contacting with the strut body/spring perch (aftermarket).

Et 22 and ad08s.

M3SQRD · 10-05-2014, 11:36 AM

Quote:

Originally Posted by 1MOREMOD

Et 22 and ad08s.

Stock or aftermarket suspension? AD08s have a wide a square edge but I'm surprised you had rubbing issues with a F 9.5et22 wheel.

I'm about to switch to 275/295 BFG Rivals.

Vybz · 10-05-2014, 01:04 PM

I run 275/35 - 295/35 on 18x10/18x11 while lowered on JRZ. The only rubbing I have in the front is slightly on the inside of the rear wheel well, and that's only at full lock. The rear is set pretty stiff, only rubs if car encounters a serious bump/dip.

1MOREMOD · 10-05-2014, 02:07 PM

Quote:

Originally Posted by M3SQRD

Stock or aftermarket suspension? AD08s have a wide a square edge but I'm surprised you had rubbing issues with a F 9.5et22 wheel.

I'm about to switch to 275/295 BFG Rivals.

Stock suspension. We are talking about 19s correct?

///MPharaoh · 10-05-2014, 03:11 PM

On my E90 I run a 19x9.5 with 275/30 and 19x11 with 295/30. On Dinan suspension. Zero issues, love the setup. Only rubs slightly in the front at full lock. I've seen E92s run this similar setup here on the forum as well.

ms372 · 10-05-2014, 04:39 PM

i run 255/35 and 295/30 (hankook v12) with my forgestars while being lowered on coils. zero issues and no rubbing

slicer · 10-05-2014, 05:15 PM

I have ran 275's in the front on many wheel sets. You need between -1.5 to -2.0 camber in the front. I would not run a 255/295 stagger unless you want more understeer for some reason.

Quote:

Originally Posted by slicer

Some pics for you to see various wheel sizes and offsets. I hope this helps

18x9.5 et19
275/35/18 Michelin PSS

18x10.5 et19
285/35/18 Michelin PSS

IMG_0459 by slicerM, on Flickr

18x10 et17
275/35/18 Michelin PSS

18x11 et18
285/35/18 Michelin PSS

IMG_0394 by slicerM, on Flickr

18x9.5 et17
275/35/18 Hankook RS3

18x10.5 et25
285/35/18 Hankook RS3

IMG_0117 by slicerM, on Flickr

18x9.5 et17
275/35/18 Hankook RS3

18x10.5 et22
285/35/18 Hankook RS3

IMG_9808 by slicerM, on Flickr

IMG_9806 by slicerM, on Flickr

19x9 et20
275/30/19 Yokohama AD08

19x10 et25
295/30/19 Yokohama AD08

IMG_9974 by slicerM, on Flickr

18x10 et25
275/35/18 BFG G-Force Rival

18x11 et25
295/35/18 BFG G-Force Rival

image by slicerM, on Flickr

18x9.5 et22
275/35/18 BFG G-Force Rival

18x10.5 et25
295/35/18 BFG G-Force Rival

image by slicerM, on Flickr

Juicehead · 10-05-2014, 06:35 PM

Quote:

Originally Posted by ///MPharaoh

On my E90 I run a 19x9.5 with 275/30 and 19x11 with 295/30. On Dinan suspension. Zero issues, love the setup. Only rubs slightly in the front at full lock. I've seen E92s run this similar setup here on the forum as well.

Do the rears look more stretched than the fronts with this setup? Or do they look about the same? Hankook shows the 275/30 is good on a 9-10 in wheel and the 295/30 on a 10-11 in wheel

Thanks for all the input so far everyone, you all have put my mind at ease...

///MPharaoh · 10-05-2014, 06:41 PM

Quote:

Originally Posted by Juicehead

Do the rears look more stretched than the fronts with this setup? Or do they look about the same? Hankook shows the 275/30 is good on a 9-10 in wheel and the 295/30 on a 10-11 in wheel

Thanks for all the input so far everyone, you all have put my mind at ease...

What do you mean by "more stretched?" The tires look perfect on those two size wheels. Not stretched over the wheel at all, if that's what you're asking.

Juicehead · 10-05-2014, 07:00 PM

Quote:

Originally Posted by ///MPharaoh

What do you mean by "more stretched?" The tires look perfect on those two size wheels. Not stretched over the wheel at all, if that's what you're asking.

Yeah, that's what I meant...

Good to know. What tire brand are you running? Are you lowered at all?

M3SQRD · 10-05-2014, 07:35 PM

Quote:

Originally Posted by 1MOREMOD

Stock suspension. We are talking about 19s correct?

Why does wheel diameter matter? The OD of wider than stock tires, 18" or 19", should be close to the OD of stock width tires. The OD of a 275/30-19 and 275/35-18 tire are the same so the clearances will be the same as long as both wheels are 9.5et22.

1MOREMOD · 10-05-2014, 07:57 PM

Quote:

Originally Posted by M3SQRD

Why does wheel diameter matter? The OD of wider than stock tires, 18" or 19", should be close to the OD of stock width tires. The OD of a 275/30-19 and 275/35-18 tire are the same so the clearances will be the same as long as both wheels are 9.5et22.

I'm aware we weren't comparing 275-35-18 with 275-30-19 until this post. A 275-35-19 won't likely fit and in my experience the 265-30-19 touched the liner.

I'm in the process of making 285-30-18/280-650-18 square fit my e46.

///MPharaoh · 10-05-2014, 10:25 PM

Quote:

Originally Posted by Juicehead

Yeah, that's what I meant...

Good to know. What tire brand are you running? Are you lowered at all?

Dinan suspension lowers it 1/2" front and rear. I'm running Michelin Pilot Super Sports. Happy with the setup, here's how it looks.

10-04-2014, 04:48 PM	#1
Juicehead Lieutenant 100 Rep 562 Posts Drives: Raptor Join Date: Sep 2010 Location: Tampa, FL iTrader: (3)	Is 9.5 Front and 11.0 Rear too big of a spread? So, I just ordered some Forgestar F14 SDC in 9.5/11.0 and now I am not sure I should have made that 1.5" spread.... Some people go with 10" in the front but I have read that it does protrude outside the fender a bit in the SDC. I cannot find a definitive answer on front tire size to match a 295/30/19 rear on an 11, and 9.5 front, 265/30 or 275/30? I plan to go with the Hankooks any input will be greatly appreciated...
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10-04-2014, 04:50 PM	#2
1MOREMOD - 11817 Rep 23,187 Posts Drives: Race car-> Join Date: Mar 2009 Location: check your mirrors iTrader: (5)	275-30 would be a tough fit.
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10-05-2014, 09:36 AM	#3
M3SQRD Major General 2103 Rep 5,496 Posts Drives: E92 M3,G20 330ix,F22 240iX,F82 Join Date: Jun 2009 Location: Mid-Atlantic iTrader: (11)	275/30-19 is only 0.2" different from the radius of the stock 245/35-19. For a non-square setup, a 275/295 setup isn't bad.
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10-05-2014, 10:02 AM	#5
redline9001 Captain 223 Rep 979 Posts Drives: E92 M3, F15 X5, G14 F150 Join Date: Apr 2011 Location: Calgary, Canada iTrader: (0)	i have 9.5" front and 11" rear and it is fine depending on your offsets. But i run 255 front and 295 rears __________________ 2011 E92 M3 \| JEREZ BLACK \| EXTENDED BAMBOO NOVILLO \| EXECUTIVE PKG \| M-DRIVE \| EDC \| M-DCT MODS \| KW S/O \| HRE P40SC \| Akra Evo \|ESS Akra Tune \| ESS DCT tune \| BMC drop in \| StopTech Trophies \| TMS Pulley \| LUX V3 \| BE Bearings and BE ARP rod bolts
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10-05-2014, 10:45 AM	#7
blast1st Test 115 Rep 1,707 Posts Drives: MDX as my daily @blast_1st Join Date: Aug 2011 Location: SO-CAL! iTrader: (1)	255/35 in front is the safest way to go without rubbing.
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10-05-2014, 01:04 PM	#12
Vybz Captain 133 Rep 673 Posts Drives: Adidas and Puma Join Date: Sep 2010 Location: Kitsap County, WA iTrader: (10) Garage List 2012 BMW M3 [8.60]	I run 275/35 - 295/35 on 18x10/18x11 while lowered on JRZ. The only rubbing I have in the front is slightly on the inside of the rear wheel well, and that's only at full lock. The rear is set pretty stiff, only rubs if car encounters a serious bump/dip. __________________ Highway Star Garage / Ruined Luxury Auto InstaGram: Ruinedluxury_vybz NA1 NSX - Storage 2nd Gen Taco - Daily
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10-05-2014, 03:11 PM	#14
///MPharaoh Finally done modding...until the next mod. 10 Rep 130 Posts Drives: E90 M3 Join Date: Jul 2014 Location: NorCal iTrader: (1)	On my E90 I run a 19x9.5 with 275/30 and 19x11 with 295/30. On Dinan suspension. Zero issues, love the setup. Only rubs slightly in the front at full lock. I've seen E92s run this similar setup here on the forum as well. __________________ '10 6MT ZCP E90 M3 - Brembo: GT BBK(front/rear) / Dinan: Mid-pipe & Race SW, Pulley Kit, Stage 2 Suspension, Strut Braces, Rear Toe Links / AFE: Stage 2 Intake / BMW Performance: V2 Electronic Steering Wheel (w/ AutoCarbon CF Trim), CF Mirror Caps, CF Spoiler, CF Interior Trim / LTMW: 1M M3 Front Bumper w/ Slek CF Lip / AEPX: ARC-8s / Akrapovic: Rear Exhaust / Arkym: CF Rear Diffuser / Vinyl Styles: partial matte grey wrap / etc...
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10-05-2014, 04:39 PM	#15
ms372 White Shark 88 Rep 919 Posts Drives: AW E92 m3 6MT Join Date: Mar 2012 Location: Montreal iTrader: (0)	i run 255/35 and 295/30 (hankook v12) with my forgestars while being lowered on coils. zero issues and no rubbing __________________ ESS \| Challenge x-pipe \| Akrapovic \| Stoptech BBK (380/355) \|Ohlins R&T \| Dinan \| Vorsteiner \| Downforce USA \| Varis Diffuser \| Gintani \| UUC \| BMW Performance \| Macht Schnell \| Forgestar F14's SDC 19x9.5F 19x11R \| 255.35 295.30
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