Please help with Wheel & Tire fitment

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Old 06-09-2021, 06:57 AM
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swaybar
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Please help with Wheel & Tire fitment

I need help to decide if the following rims and tires can be fitted to my g37x sedan, the deal is a good one , please let me know asap. Thank you
bolt pattern is 5×114.3
rims are 19×8.5
Tires front 225/40r19
Tires rear 245/40r19
Old 06-09-2021, 09:11 AM
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RMB5190
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They should fit.

May need a hub ring adaptor; without knowing the specific brand/type of wheel, can't say exactly what/if you need. Also, do not know if they will clear the Akebonos if you have/plan on going that route.

Old 06-09-2021, 11:17 AM
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swaybar
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[QUOTE=RMB5190;4296775]They should fit.

May need a hub ring adaptor; without knowing the specific brand/type of wheel, can't say exactly what/if you need. Also, do not know if they will clear the Akebonos if you have/plan on going that


I'm upgrading the wheels to install akebonos
I also have a deal for oem 19inch rims. But no tire.
Old 06-09-2021, 11:47 AM
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RMB5190
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OEM 19's will clear Akebonos.

If the 19s you are referring to in your original post aren't the OEM 19s it's hard to say, without knowing what they are, whether or not they will have the offset to clear the Akebonos if they are in your plans.
Old 06-09-2021, 02:47 PM
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hexotic
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Rip AWD system. You have an X, meaning you need to have a square rolling diameter. With your posted specs, you're at the edge of that 2° max allowed difference. a 245/35/19 in the rear will give you a 1° difference, at which point, it's 50/50 if your car accepts it or throws codes – different for everyone.

That out of the way, you also have to look at offset. With BBK, offset becomes more and more important, along with spoke design. Spokes may not clear. For that, there are templates that help you measure the wheels. Grab them from this post: https://www.myg37.com/forums/brakes-...templates.html
Old 06-09-2021, 10:17 PM
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swaybar
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Originally Posted by hexotic
Rip AWD system. You have an X, meaning you need to have a square rolling diameter. With your posted specs, you're at the edge of that 2° max allowed difference. a 245/35/19 in the rear will give you a 1° difference, at which point, it's 50/50 if your car accepts it or throws codes – different for everyone.

That out of the way, you also have to look at offset. With BBK, offset becomes more and more important, along with spoke design. Spokes may not clear. For that, there are templates that help you measure the wheels. Grab them from this post: https://www.myg37.com/forums/brakes-...templates.html
How about 235/55/r19 ?
all four of them same.
Old 06-09-2021, 10:50 PM
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swaybar
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Originally Posted by swaybar
How about 235/55/r19 ?
all four of them same.
also 245/45/19 , 3/32 ?
Old 06-09-2021, 10:52 PM
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hexotic
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That's too big a sidewall.
245/40/19 will be the same overall wheel size as stock. Almost identical rolling diameter so your speedo won't show the wrong speed.

If you want to fill the wheel well a little more, you can go with a 255/40/19. The overall diameter is 0.3" more than stock. Also won't give wrong speedo readings. 255 will be a meaty look, almost squared off.

If you're going for more of that poke look, then you would need 235 or less on those wheels.
You can go 235/40/19 which is closer to stock, but a tiny bit smaller.
Alternatively, go 235/45/19 to, again, fill the wheel well a bit more, but your speedo may read 1 or 2 mph slower than your actual speed, so be aware of that.

Have you found out the offset of those wheels? do you know if they will clear your brakes? or will you need spacers? Also make sure the hub bore is not smaller than 66.1
Old 06-09-2021, 10:58 PM
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hexotic
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Originally Posted by swaybar
also 245/45/19 , 3/32 ?
your speedo will be off by 6 mph at 90. Thats a whole inch taller wheel than stock.
Old 06-09-2021, 11:05 PM
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swaybar
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Originally Posted by hexotic
your speedo will be off by 6 mph at 90. Thats a whole inch taller wheel than stock.
So 245/40/19 all around ?
Old 06-09-2021, 11:09 PM
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hexotic
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That will look the nicest and will have the same rolling specs as stock so no drivetrain error or broken transfer cases or diffs. (extreme cases of bad awd tire fitment)

This is Rochester's clean sedan. His wheels are staggered, but the fronts are 19x8.5 with 245/40/19. Thats what you can expect how the tire will sit on the wheel.
You can see his thread here: https://www.myg37.com/forums/build-t...r-s-new-g.html

Last edited by hexotic; 06-09-2021 at 11:14 PM.
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Old 06-09-2021, 11:11 PM
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swaybar
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Originally Posted by hexotic
That will look the nicest and will have the same rolling specs as stock so no drivetrain error or broken transfer cases or diffs. (extreme cases of bad awd tire fitment)
I appreciate your help. I'll look for those
Old 06-10-2021, 07:15 AM
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Rochester
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Originally Posted by hexotic
This is Rochester's clean sedan. His wheels are staggered, but the fronts are 19x8.5 with 245/40/19. Thats what you can expect how the tire will sit on the wheel.
WTF, hexotic? LOL

The front is dropped on Swift springs, with OEM sport shocks and OEM control arms, so there's approximately -1.5° camber.

Yes, the front Vossens are 19x8.5, and those tire specs are correct... but to round out the information, the offset is +32, and there are 3mm wheel spacers on them.
Old 06-10-2021, 07:40 AM
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hexotic
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Originally Posted by Rochester
WTF, hexotic? LOL

The front is dropped on Swift springs, with OEM sport shocks and OEM control arms, so there's approximately -1.5° camber.

Yes, the front Vossens are 19x8.5, and those tire specs are correct... but to round out the information, the offset is +32, and there are 3mm wheel spacers on them.
Thanks for the added info. I still wasn't able to squeeze the offset out of him lol.

And hahaha, sorry, your car was the first that came to mind with those tire specs.
Old 06-10-2021, 07:59 AM
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Rochester
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Swaybar, you don't need three threads asking for "ASAP help" with wheel fitment. I deleted the other two.

Stop it.


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