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Old 04-13-2021, 12:08 PM   #8576
standardtranny
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anyone?
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Old 04-14-2021, 08:27 AM   #8577
Norm Peterson
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Too close for me to call with your specified car loading.

But here's how it'd compare to the OE setup with Dunlop Maxx tires using mfr-listed dimensions for each - the outside face of the 265 tire and wheel combination would be about 0.9" (23 mm) closer to the fender metal.




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Old 04-14-2021, 09:28 AM   #8578
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Ok thanks Norm!
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Old 04-27-2021, 01:18 PM   #8579
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Quote:
Originally Posted by 2016fa20dit View Post


This is my car with 17x9 with stock sizes tires. I ran them until they wore out and I went with 255’s.
What's your suspension set up (looks stock, just want to make sure), and what's the wheel offset?
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Old 04-27-2021, 05:55 PM   #8580
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Quote:
Originally Posted by Kevin5255 View Post
What's your suspension set up (looks stock, just want to make sure), and what's the wheel offset?


At the time of the picture I was on stock suspension and had no issues. The offset is +35. I’m now on hks hypermax sp coilovers. I let them on the preset hight and don’t have any issues with it either.
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Old 04-30-2021, 01:58 PM   #8581
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got 18x9.5 +35mm no rub on the sti
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Old 05-01-2021, 07:57 AM   #8582
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Originally Posted by Miroki View Post
got 18x9.5 +35mm no rub on the sti
Tire size?

Any lowering or fender mods?


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Old 05-11-2021, 08:59 PM   #8583
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Default Aodhan AH08 18x9.5 +30

Wondering if a 18x9.5 et +30 with 245/40/18 will fit on an 18 WRX lowered on RCE yellows. I've been through about 150 pages of this thread and haven't seen any answers. Thanks in advance!
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Old 05-12-2021, 10:33 PM   #8584
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Finally got some new wheels. These are the Aodhan DS06 18x9.5 30mm offsett wrapped in Continental Extreme Contact Sports 265/35. Suspension is HKS hipermax IV GTs. 5 mm spacers on the front to clear the brakes and no spacers on the rear. I did have to adjust the rear hight one full rotation to prevent rubbing but no fender rolling. The goal was to get a meaty race setup and I'm very happy with the results.



Last edited by mellowsubie; 05-13-2021 at 12:33 AM. Reason: images
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Old 05-13-2021, 11:23 AM   #8585
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Quote:
Originally Posted by standardtranny View Post
I recently bought a set of Weds SA-25r 18x9.5 +45 and currently running stock size tires, 245/40. Just wanted to confirm that I will have enough clearance to run 265/35 PS4S tire with no fender mods and stock suspension. May also have 4or5 people in the car at times with gear so want to make sure I won't rub. cheers
Can anyone please confirm?
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Old 05-13-2021, 03:03 PM   #8586
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Originally Posted by standardtranny View Post
Can anyone please confirm?
The post right before this has the same configuration with 15mm more outward offset. You'll be fine.
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Old 05-14-2021, 11:33 AM   #8587
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Originally Posted by ntg44 View Post
The post right before this has the same configuration with 15mm more outward offset. You'll be fine.
ok thanks!
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Old 05-14-2021, 12:39 PM   #8588
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Originally Posted by mellowsubie View Post
Finally got some new wheels. These are the Aodhan DS06 18x9.5 30mm offsett ......
Thanks! Two questions; in the pictures it looks like it will rub on bumps, with a 245 tire will that give the wheel a little more room to move up and down without issue? Also will I need a spacer if I don't have brembos? I'm new to wheel fitment, does the 5mm space push it out to a +25 offset or make it a +35? Not sure which way is which. Thanks!
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Old 05-14-2021, 03:06 PM   #8589
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Quote:
Originally Posted by koolaidwrx View Post
Thanks! Two questions; in the pictures it looks like it will rub on bumps, with a 245 tire will that give the wheel a little more room to move up and down without issue? Also will I need a spacer if I don't have brembos? I'm new to wheel fitment, does the 5mm space push it out to a +25 offset or make it a +35? Not sure which way is which. Thanks!
After having the wheels on for a few days I did have to adjust the coilovers in the rear to prevent rubbing when I hit dips on the road. Rolling is a last resort and I didn’t really need to do it since I can adjust the height. As for the offset, a spacer subtracts from positive offset. I have the 5mm spacer only on the fronts so the 30mm becomes a 25mm offset pushing wheel out 5mm (it took me a bit to wrap my head around this). In the rear I can fit about two fingers between fender and wheel. If I have passengers it will probably scrape in the rear but I don’t usually have anyone else in the car so take that into consideration.

If you don’t have the big brakes in the front there shouldn’t be any issues but that’s my opinion, I’m no expert.
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Old 05-14-2021, 08:10 PM   #8590
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Quote:
Originally Posted by mellowsubie View Post
After having the wheels on for a few days I did have to adjust the coilovers in the rear to prevent rubbing when I hit dips on the....
Thanks for the info! I'm basing what it would look like on my car off the way your rear looks. Also I will have a narrower tire so I'm assuming it will buy me a little extra forgiveness. Thanks again!
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Old 05-15-2021, 02:09 AM   #8591
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Quote:
Originally Posted by standardtranny View Post
Can anyone please confirm?
My setup is 18x9.5 +38 te37s with 265/35/18 Michelin ps4s and similarly to mellowsubie, I’m on hks hypermax gt iv coilovers and had to raise the rear a couple turns to prevent rubbing on hard dips. My rear camber is -2.5 and I rarely ever have passengers. Btw, no fender mods.
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Old 05-19-2021, 08:00 AM   #8592
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My current setup is 18x9.5 +35 with 265/35 Michelin PS4s. I'm running Racecomp Superstreet-1 Coilovers, -2.7 camber, slightly rolled rear fenders (plus removed the rubberized strip). It rubs on dips mainly, but it even rubs the rear bumper clip! I'm thinking of downsizing the tires to 255/35, hate to keep cutting/digging into the sidewall of these tires, but also hate to throw away all the useful life in them. Will moving down to 255/35 be my best solution?

I'll be swapping back to stocks until I make up my mind
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Old 05-26-2021, 02:26 PM   #8593
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2015 STI
Titan 7 T-R10
18x9.5 +40
Ohlins Road & Track Coilovers

Last edited by mikereyes; 05-26-2021 at 02:34 PM.
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Old 06-07-2021, 08:47 PM   #8594
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Default Looks great

Quote:
Originally Posted by iriemark View Post
What brand/model tire are you running? I'm looking to switch up to 265 (from 255). Thanks in advance!
I think I made a huge mistake by going 255/40. This looks great!
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Old 07-08-2021, 01:22 PM   #8595
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Default Works ZR10 18x9.5 +38mm offset with stock tire size setup

Works Emotion series ZR10 Grim Black Diamond.

Ordered from Japan and took me 6 months to get it.

18x9.5 +38mm offset.

Stock tire size (245/40/18). Might go with 255/35/18 next time.


Last edited by gumi4680; 07-08-2021 at 04:45 PM.
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Old 07-20-2021, 01:48 PM   #8596
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2019 STI
Stock suspension
Gram Lights 57DR 18x9.5 +38
Yokohama V601 265/35R18






Last edited by FastFachi; 07-20-2021 at 01:56 PM.
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Old 07-20-2021, 10:50 PM   #8597
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Hey all, long time without posting!

On a 2018 STi, I am looking to fill the fenders with as much tire as possible without modding the fender or altering alignment to make them fit. Kind of like I did on my 03 WRX, I was running 245/40/17 on 17x8 +48, now with the '18 STi I have much more room to work with I am running the stock suspension and alignment.

So my plan is to run 275/35/18 on 18x10 VMR V810 wheels. Now the place where my plan starts to sound weird/unusual is the offset Since the wheel is apparently not available in offset +50 (I was looking for 18x9.5 +50 initially), I realized I can maybe run +58 offset (the next size for that wheel) and switch to 18x10 instead of 18x9.5. I would be very close to the front strut but still clear by about 3mm based on my measurements. As for tire, the tire I am looking to get (Indy 500) does not have a big rubber lip protection like the stock 18'' Dunlops so I should be good (they won't be wider than the wheels).

In the rear I see interference with the plastic fender liner material that is loosely covering the shocks. I could live with trimming/modifying that plastic piece to clear. Edit: I obviously also have to verify brake clearance (I'm communicating with VMR to verify the wheel profile vs the brakes).

I like to use the willtheyfit calculator to confirm my calculations, it says:

22.1mm closer to the suspension strut
The outer rim will poke out 16.1mm more than before.

So my main worries are:

- Is 3mm enough wheel to strut gap? Is there a significant flex in wheels or struts under load that could make this a problem?

- Anyone has experience of what can happen when you go 22.1mm towards the suspension on the rear? The suspension arms are clearly ok, but what about camber increasing while compressing vs the inside/top of the wheel well? Maybe those who went extremely wide (and used the inside part as much as possible) could comment? I'll try to do some more measurement, but I thought I'd ask you guys what you think.

I'm searching too, but obviously most of the time people that run wide wheels have relatively low offset (+35 to +45) with camber. I'd looking to retain closer to factory offset, and make use of the inside space as much as possible.



Here are the wheels I am looking to get, they weight 20.6 lbs in 18x9.5, I guess they'll be just a bit more in 18x10:





https://www.vmrwheels.com/product-page/v810

Last edited by frederik; 07-20-2021 at 11:12 PM.
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Old 07-24-2021, 03:46 PM   #8598
Norm Peterson
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Quote:
Originally Posted by frederik View Post
So my main worries are:

- Is 3mm enough wheel to strut gap? Is there a significant flex in wheels or struts under load that could make this a problem?
Wheels don't flex very much unless they're about ready to break or the wheel bearing is starting to develop some play. Tire distortion - street tires anyway - flex the most at the ground and not much at the top.

My track day set of tires runs under 2.0 mm (wheel and tire)without rubbing even at 1.2 lat g. But it's a rather stretched fitment - 285/35-18 on 18x11 all four corners.







Quote:
Anyone has experience of what can happen when you go 22.1mm towards the suspension on the rear? The suspension arms are clearly ok, but what about camber increasing while compressing vs the inside/top of the wheel well? Maybe those who went extremely wide (and used the inside part as much as possible) could comment? I'll try to do some more measurement, but I thought I'd ask you guys what you think.
Camber adjustments made with camber plates do not affect strut clearances. Adjusting with camber/aftermarket crash bolts does.


Quote:
I'm searching too, but obviously most of the time people that run wide wheels have relatively low offset (+35 to +45) with camber. I'd looking to retain closer to factory offset, and make use of the inside space as much as possible.
Many of the people you're referring to are going more for a flush appearance rather than maximizing tire and wheel width. Or are less comfortable running tight strut-side and other inside clearances.


Norm
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Old 07-24-2021, 10:56 PM   #8599
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Quote:
Originally Posted by Norm Peterson View Post
Wheels don't flex very much unless they're about ready to break or the wheel bearing is starting to develop some play. Tire distortion - street tires anyway - flex the most at the ground and not much at the top.

My track day set of tires runs under 2.0 mm (wheel and tire)without rubbing even at 1.2 lat g. But it's a rather stretched fitment - 285/35-18 on 18x11 all four corners.


Camber adjustments made with camber plates do not affect strut clearances. Adjusting with camber/aftermarket crash bolts does.


Many of the people you're referring to are going more for a flush appearance rather than maximizing tire and wheel width. Or are less comfortable running tight strut-side and other inside clearances.


Norm
Thanks Norm! Sounds like it should not be an issue in the front. I want to be pretty close to the fender (I'm ok with about 16mm more poke than stock which is close to the edge of the fender), while at the same time filling the inside too as much as possible.

About the camber in the back, I was referring to the stock geometry of the multi link suspension, the dynamic camber as the suspension compresses. I can pretty easily figure out if things clear at static height by measuring, but I'm not sure how much additional camber the wheel gets as it compresses under load. I'll look some more and measure how much room there is, and might test climbing on something to compress one rear wheel and see how much the upper part of the wheel moves inwards.

I remember reading a thread of a guy with his BMW, the was trying to fit very wide tires and was running into all sorts of clearance issues, solving them one at a time. I am not going that extreme, but if you know of a thread like that but for the VA chassis it would be pretty useful, seeing what hits first as you go wide towards the inside.

Thanks again!

Fred
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Old 07-25-2021, 08:27 AM   #8600
Norm Peterson
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There's still some possibility that you might need thin spacers up front based on a 275 tire on 10" wide rims being slightly less stiff laterally than my 285/11" combination.

I've seen a site that might be able to give you what you want for the rear, if I can find it again. It was from a post somewhere here on NASIOC, so I may be able to track it down via post history. It gets into camber gain like you're looking for.


Norm
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