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Old Yesterday, 09:59 AM   #1701
stealth06wrx
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Quote:
Originally Posted by ACG802 View Post
Just picked up a used set of Enkei vr5 18x8 42mm offset with 225/45/18 Continental's. Both in great condition, just not sure why he went with that tire size on his Sti. I will be putting them on a 2015 WRX. Should that fitment work out okay?
That is a weird tire size for an sti but that will fit fine. Try a wheel size calculator to determine how much the speedo may be off.
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Old Yesterday, 10:14 AM   #1702
ievko82
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Quote:
Originally Posted by NErex10 View Post
Anyone run 265/35 on their 2015?
I was informed by subispeed in an email that a 265/35/18 on a 9.5 +38 would require some modification to fit when the car is lowered they said a 255 was a good fit. This is just what they told me.
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Old Yesterday, 10:38 AM   #1703
ACG802
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Quote:
Originally Posted by stealth06wrx View Post
That is a weird tire size for an sti but that will fit fine. Try a wheel size calculator to determine how much the speedo may be off.
Thank you, will do.
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Old Yesterday, 07:02 PM   #1704
bunz559
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I've been eyeing and searching for some Advan RG-D wheels. Not completely committed yet, but am constantly looking at the deals and what's on the used market. I've also started researching on fitment but am unable to find a clear answer. Would like to ask a few questions and maybe someone might be able to help.

From what's I've gathered, 18x9 +45 will not clear STI Brembos. Although not installed on my car, I do have a set that will go on in the future. From what I've gathered these will need either a 3mm spacer, another guy in the classifieds said his needed a 15mm spacer. That's a huge gap of unknown information I'm missing.

Put together, we know that the 18x9 +45 will need a spacer. So the question is, will getting a lower offset help in adding enough clearance? Advan lists the next step down would be a +35. Or would width make any difference?
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Old Yesterday, 08:32 PM   #1705
sc00by4life
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Originally Posted by bunz559 View Post
So the question is, will getting a lower offset help in adding enough clearance? Advan lists the next step down would be a +35. Or would width make any difference?
Neither. Brake clearance isn't determined by offset or wheel width.
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Old Yesterday, 11:27 PM   #1706
geeman789
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Quote:
Originally Posted by sc00by4life View Post
Neither. Brake clearance isn't determined by offset or wheel width.
Whoa...!

Wheel offset is critical in determining brake clearance. If width and spoke layout / design are the same, then a +35 offset would give you 10 mm MORE caliper clearance, compared to a +45 offset.

If it fits... moving the wheel away from the hub with a lower offset moves it CLOSER to the fender lip... you only have so much room.
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Old Yesterday, 11:39 PM   #1707
bunz559
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I really don't want to be the one to test. Lol! Guess I'll have to either wait for someone/shop to confirm without spacer use and fender rolling and settle for another set of wheels.
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Old Yesterday, 11:49 PM   #1708
mlzmfln
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wheels: gramlight dr 18x9.5 +38
tires: 265/35/18
height: lowered about finger and half wheel gap
suspension: coilovers, adjustable LCA's, adjustable toe arms
camber/toe: -2.0 fr, -2.5 rr, 0 toe
fender roll: no, but i would require if i go lower and dont want to add camber.

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Old Yesterday, 11:52 PM   #1709
TONYpepperon1
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Quote:
Originally Posted by mlzmfln View Post
wheels: gramlight dr 18x9.5 +38
tires: 265/35/18
height: lowered about finger and half wheel gap
suspension: coilovers, adjustable LCA's, adjustable toe arms
camber/toe: -2.0 fr, -2.5 rr, 0 toe
fender roll: no, but i would require if i go lower and dont want to add camber.
What coilovers are you on?
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Old Today, 01:19 AM   #1710
mphfrom77
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Quote:
Originally Posted by mlzmfln View Post
wheels: gramlight dr 18x9.5 +38
tires: 265/35/18
height: lowered about finger and half wheel gap
suspension: coilovers, adjustable LCA's, adjustable toe arms
camber/toe: -2.0 fr, -2.5 rr, 0 toe
fender roll: no, but i would require if i go lower and dont want to add camber.

That's really nice looking. I have a silver base a week or so out.

I am unfamiliar with all things wheels, but researching lately I think I like this style wheel over the many spoke wheels.

Would you happen to have more pics from other angles? Also would you happen to have any pics with these wheels before it was lowered? Thanks

Last edited by mphfrom77; Today at 01:28 AM.
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Old Today, 07:57 AM   #1711
sc00by4life
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Quote:
Originally Posted by geeman789 View Post
Whoa...!

Wheel offset is critical in determining brake clearance.
Sorry buddy, you're wrong. Offset alone has absolutely nothing to do with brake clearance. Otherwise, why would a +53 wheel clear brembos, but a +30 might not.

Quote:
If width and spoke layout / design are the same, then a +35 offset would give you 10 mm MORE caliper clearance, compared to a +45 offset.
Your problem lies in the bolded part, your statement is only true when a wheel uses the exact same face across all widths and offsets. However, manufacturers typically have multiple face designs and varying pad heights based on a combination of wheel width or offset (or both).

What determines brake clearance is the pad height, which is partially related to offset but not really at all, and spoke design.

This is why certain wheels with the EXACT same face fit with a lower offset (due to a higher pad height). The example I like to use is the 18x9.5 NT03. The +40 doesn't clear brembos, but the +27 does. However, on wheels like say......the RPF1, there is no 9"+ wheel in any offset that clears brembos because pad height changes relatively little between the offsets. Funny though, as there are plenty of 8" et40+ RPF1's that clear brembos.

Or other flat faced wheel designs (like an LM or something), that won't clear brembos in...well....any offset really. On multi-piece wheels, where the offset is determined by inner and outer barrel dimensions and use the same face.

Quote:
If it fits... moving the wheel away from the hub with a lower offset moves it CLOSER to the fender lip... you only have so much room.
It comes down to the individual wheel design.

You cannot make the broad sweeping assumption that lower offsets clear brakes.

Last edited by sc00by4life; Today at 11:55 AM.
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Old Today, 09:46 AM   #1712
Scoob1318
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Quote:
Originally Posted by mlzmfln View Post
wheels: gramlight dr 18x9.5 +38
tires: 265/35/18
height: lowered about finger and half wheel gap
suspension: coilovers, adjustable LCA's, adjustable toe arms
camber/toe: -2.0 fr, -2.5 rr, 0 toe
fender roll: no, but i would require if i go lower and dont want to add camber.


That looks great! No rubbing issues?


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Old Today, 11:12 AM   #1713
blum3416
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Default 2015 WRX/STi Aftermarket wheel and tire fitment

Quote:
Originally Posted by mlzmfln View Post
wheels: gramlight dr 18x9.5 +38
tires: 265/35/18
height: lowered about finger and half wheel gap
suspension: coilovers, adjustable LCA's, adjustable toe arms
camber/toe: -2.0 fr, -2.5 rr, 0 toe
fender roll: no, but i would require if i go lower and dont want to add camber.


Side profile pic please?? 😃 those look really nice!


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Last edited by blum3416; Today at 04:12 PM.
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Old Today, 01:48 PM   #1714
bunz559
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Quote:
Originally Posted by sc00by4life View Post
Sorry buddy, you're wrong. Offset alone has absolutely nothing to do with brake clearance. Otherwise, why would a +53 wheel clear brembos, but a +30 might not.



Your problem lies in the bolded part, your statement is only true when a wheel uses the exact same face across all widths and offsets. However, manufacturers typically have multiple face designs and varying pad heights based on a combination of wheel width or offset (or both).

What determines brake clearance is the pad height, which is partially related to offset but not really at all, and spoke design.

This is why certain wheels with the EXACT same face fit with a lower offset (due to a higher pad height). The example I like to use is the 18x9.5 NT03. The +40 doesn't clear brembos, but the +27 does. However, on wheels like say......the RPF1, there is no 9"+ wheel in any offset that clears brembos because pad height changes relatively little between the offsets. Funny though, as there are plenty of 8" et40+ RPF1's that clear brembos.

Or other flat faced wheel designs (like an LM or something), that won't clear brembos in...well....any offset really. On multi-piece wheels, where the offset is determined by inner and outer barrel dimensions and use the same face.



It comes down to the individual wheel design.

You cannot make the broad sweeping assumption that lower offsets clear brakes.
Great information. I can see that wheel companies often do change the face with different wheel widths or offsets. I only asked the above because I was really set on the Advan RG-D wheels. In the near future, I will be adding STI Brembos (as I have a set in the garage) and wanted some insight on the fitment and clearance of the wheels. Seems that these wheels wont clear without spacers from people's experiences. Any suggestions or inputs are greatly appreciated.
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Old Today, 02:28 PM   #1715
NErex10
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Quote:
Originally Posted by ievko82 View Post
I was informed by subispeed in an email that a 265/35/18 on a 9.5 +38 would require some modification to fit when the car is lowered they said a 255 was a good fit. This is just what they told me.
thanks for the info! I was thinking of lowering but nothing too crazy...
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Old Today, 02:48 PM   #1716
jWaRcXk
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When you guys say +38, is that all the way around, not just in the rear? Thanks!
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Old Today, 03:08 PM   #1717
MATR6
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You shouldn't put wheels with different offsest & widths on an AWD car so I think 38mm all the way around.
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Old Today, 04:10 PM   #1718
sc00by4life
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Default 2015 WRX/STi Aftermarket wheel and tire fitment

Quote:
Originally Posted by MATR6 View Post
You shouldn't put wheels with different offsest & widths on an AWD car so I think 38mm all the way around.

You can stagger offsets all you want. Though, lower offsets in the rear promote the already bad under steer of these cars.

But yes, 99.99% of people on nasioc run square setups.
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