('09-'13) SH - 18x9 +43 w/ 255/45R18 Possible? - Subaru Forester Owners Forum
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post #1 of 16 (permalink) Old 07-21-2013, 05:18 PM Thread Starter
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SH - 18x9 +43 w/ 255/45R18 Possible?

Hey,

I have a 2013 FXT and have been looking at possible rim/tire combinations for the future...

The rims I'm interested in come in two sizes:
1) 18x9 +38
2) 18x9 +43

I do not want the stretched tire look and want to maintain OEM diameter. This leaves me with two sizes:
1) 245/45R18 (may look stretched)
2) 255/45R18 (this would be my #1 choice)

After looking at others setups, the optimal choice for me would be 18x9 +43 w/ 255/45R18.

Will I run into issues with this setup (i.e. hitting upper perches of struts, fenders, or rear inner fender wells)? I do plan on lowering the car on 11+ WRX suspension with either 1" spacers all around or custom 1" lift springs.

Thank for the feedback.



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post #2 of 16 (permalink) Old 07-21-2013, 06:31 PM
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I don't have any helpful info as for tire specs ( as I am curious myself) but I do wanna ask why you wanna lower it on WRX suspension, but turn around and put 1" of lift into your suspension.... just curious that's all


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post #3 of 16 (permalink) Old 07-24-2013, 08:45 AM Thread Starter
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Wrx dampers can be upgraded by feal suspension and there is no aftermarket support for the forester struts/shocks.

Was hoping to hear some input on my proposed wheel/tire setup and if there are any issues I may run into.

Thanks


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post #4 of 16 (permalink) Old 07-24-2013, 10:53 AM
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Feal upgrades the stock non-servicable struts/shocks? I know they do the STi inverted units which can be taken apart.

There was someone who posted recently with similar setup to yours, though I think he was using 245/45/18s.

This: https://www.subaruforester.org/vbulle...ension-177417/

Stan

Shocks > struts.

Last edited by stan_t; 07-24-2013 at 11:00 AM.
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post #5 of 16 (permalink) Old 07-24-2013, 01:06 PM Thread Starter
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Feal has inserts for the 11+ wrx stock struts and new rear shocks that can be tuned specific to the springs your wish to use.

I messaged them on nasioc seeing if they could do the stock forester struts and new rear shocks but havent heard back.

Thanks


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post #6 of 16 (permalink) Old 07-24-2013, 05:33 PM
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Makes sense, similar to KONI inserts in the stock strut housings.

Since Bilstein actually makes strut/shock that would fit your car, I'd consider that also. Bilsteins also have adjustible perches on the rear shock (KONI probably are same too).

Stan

Shocks > struts.
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post #7 of 16 (permalink) Old 07-25-2013, 09:20 AM Thread Starter
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Exactly, ive thought about the Bilsteins as well. Its just a matter of getting rce or swift to make a set of custom wrx springs. Or I end up with mann engineering coilovers.

I think 18x9 +43 with 255/45r18 is a pretty tight fit with struts/shocks.

Thanks for your help though.


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post #8 of 16 (permalink) Old 08-07-2013, 05:36 PM Thread Starter
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Figured I should add my own findings for documentation purposes.

Found the following setup:
Advan RZ 18x9 +45
Dunlop Sport Maxx 255/45r18
Ohlins Coilovers




Only question I have now after finding this is if coilovers are required for the setup or not. I think it would be very close to rubbing forester or wrx struts/shocks.


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post #9 of 16 (permalink) Old 02-10-2014, 05:23 PM
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so what'd you end up going with?
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post #10 of 16 (permalink) Old 02-10-2014, 05:29 PM Thread Starter
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I haven't purchased anything yet...

I've been distracted with exterior mods haha.

STI Lip is on the radar right now.

Rims may not come this year.

I'm planning on running Enkei RS05RR 18x8.5 +42 with either 245/45's or 255/45's Michelin Pilot Sport A/S 3 though.

Thanks



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post #11 of 16 (permalink) Old 02-10-2014, 07:27 PM
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i just put on my wifes 2011 xt about a month ago 18x9+35 rota g-force with 245 45's on them and they do not looked stretched what so ever….Was thinking 255's but got a great deal on the 245 on tire rack with sume nice sticky dun lops:)
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post #12 of 16 (permalink) Old 02-10-2014, 07:53 PM
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Haha. My 245/45 make me want some swifts. I think wrx suspension might be too much for the tires but swifts would be perfect.

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post #13 of 16 (permalink) Old 02-10-2014, 08:07 PM Thread Starter
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Quote:
Originally Posted by sbforester1 View Post
i just put on my wifes 2011 xt about a month ago 18x9+35 rota g-force with 245 45's on them and they do not looked stretched what so ever….Was thinking 255's but got a great deal on the 245 on tire rack with sume nice sticky dun lops:)
What suspension are you running? Pics?

I'm just worried 255/45's will interfere with the struts or fenders...

Quote:
Originally Posted by kingfuzz View Post
Haha. My 245/45 make me want some swifts. I think wrx suspension might be too much for the tires but swifts would be perfect.
Specs on your rims?


Look into Tein High Tech springs as well. 40-45mm drop which looks killer. I'm debating between them and the Swifts. Not a lot of good options out there.

Would be nice if H&R would makes springs with a 30-35 mm drop...


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post #14 of 16 (permalink) Old 02-10-2014, 08:16 PM
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Rims are XXR 527 18x8.75+38

I'll look into those springs. I want something for sure to make the car level again. Stupid saggy butt syndrome.

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post #15 of 16 (permalink) Old 02-12-2014, 10:54 AM
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255's on WRX

Quote:
Originally Posted by STIdarkside View Post
What suspension are you running? Pics?

I'm just worried 255/45's will interfere with the struts or fenders...



Specs on your rims?


Look into Tein High Tech springs as well. 40-45mm drop which looks killer. I'm debating between them and the Swifts. Not a lot of good options out there.

Would be nice if H&R would makes springs with a 30-35 mm drop...
I'm on 2010 fxt on '11 WRX take offs, '11 STI upper control arms, '12 STI rear sway, whiteline sway bar mount supports;
spacers: .25 front, .75 rear
current wheel/tire: 225/45/18 +45

255/45 will definitely rub fenders in rear on WRX susp w/o a roll -- 245/45's will too.

I have 1" inch from tire face to the outside of the fender with -1.7° camber and sit 1.25" from the bottom of the fender. current setup is about 1.35" from perch.

With 350lbs in the hatch + wife and son, I have .5" between the top of the tire and the rear fender.

I just bought GTSpec front camber bolts and for the rear, ISC V2 adjustable lower control arms and a set of 18x9.5 +40 NT03's.

I plan to run -1.8° camber up front and -2° to -2.1° rear w/ 255/40's.

On paper this should put me .25" from sidewall to fender (+ whatever camber yeilds), no significant height change, .4" closer to suspension.

2.8% slower speedo compared to stock.

I'll post results in once it's setup.

hope that helps some.
peace
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