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BC forged+B16 , what tires ?

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Old 03-17-2024, 03:00 PM
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Sivak
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Default BC forged+B16 , what tires ?

Hey guys , I just received BC wheels
F19x9/45
R19x12/44
i will instal it with coilovers Bilstein B16 and lowered
My question about what size of tires I should to order ,
F 245/30
R 325/30 or 305/30 ?
im understand it’s aggressive offset and worry if wide tire will not rub the fender, but wish to have 325.
Anyone has this experience ?


Old 03-17-2024, 04:08 PM
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NoWeakSpecs
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You'll want to stick to the proper F/R rolling diameter ratios to keep the front diff happy.

You have 4 options
1) 235/35/19 | 305/30/19 (stock sizes). No rubbing with that rear tire size and offset. Will look stretched due to the width you chose.
2) 245/35/19 | 315/30/19. Gives you the front size you want and a slightly wider rear tire. Should be no rubbing with that rear size
3) 245/35/19 | 325/30/19. Many people are running this setup with similar rear wheel specs without any rubbing. Your final fitment will depend on ride height and rear camber (~ -1.5 should be enough in the rear, maybe up to -2)
4) 255/35/19 | 325/30/19. Not as common but a few people have done it. Same as above with regards to rear fitment. Should be no rubbing on the fronts either, but again, will depend on your ride height and cambers.

Photos of 255/35/19 | 325/30/19 in this thread
https://rennlist.com/forums/997-turb...-up-front.html




Last edited by NoWeakSpecs; 03-17-2024 at 05:24 PM.
Old 03-17-2024, 07:39 PM
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rsalicrup
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I wasn’t sure what size to run based on my offsets so I’m currently running OEM size till I finish redoing my suspension. You will have plenty of space for a 325 but it also depends on the brand of tire. I’m running 19x12 at 42 at the rear with Conties 305s and there is plenty of room for 325s. Conties run a bit on the smaller size. Did a lot of research on tire size width.

This is a Contie on a 12” wheel with 325


vs this is a Michelin 305 on a 12” wheel


This is an MP4 325 on a 12”. Not a fan of the meaty muscle car look so I will stick to the Conties.



my car with 305 Contie on a 12”


Last edited by rsalicrup; 03-17-2024 at 07:41 PM.
Old 03-17-2024, 09:00 PM
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rsalicrup
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The fronts is a different story. I’m also running 19x9 at 45. I am running a -2.2 camber at the moment but going to be dialing back at bit and hopefully a 245 will not be an issue.

Old 03-17-2024, 09:07 PM
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Sivak
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Originally Posted by NoWeakSpecs
You'll want to stick to the proper F/R rolling diameter ratios to keep the front diff happy.

You have 4 options
1) 235/35/19 | 305/30/19 (stock sizes). No rubbing with that rear tire size and offset. Will look stretched due to the width you chose.
2) 245/35/19 | 315/30/19. Gives you the front size you want and a slightly wider rear tire. Should be no rubbing with that rear size
3) 245/35/19 | 325/30/19. Many people are running this setup with similar rear wheel specs without any rubbing. Your final fitment will depend on ride height and rear camber (~ -1.5 should be enough in the rear, maybe up to -2)
4) 255/35/19 | 325/30/19. Not as common but a few people have done it. Same as above with regards to rear fitment. Should be no rubbing on the fronts either, but again, will depend on your ride height and cambers.

Photos of 255/35/19 | 325/30/19 in this thread
https://rennlist.com/forums/997-turb...-up-front.html

thank you for response and info its helps a lot , I think I will stick with 305 or 315
Old 03-17-2024, 09:10 PM
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Sivak
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Originally Posted by rsalicrup
I wasn’t sure what size to run based on my offsets so I’m currently running OEM size till I finish redoing my suspension. You will have plenty of space for a 325 but it also depends on the brand of tire. I’m running 19x12 at 42 at the rear with Conties 305s and there is plenty of room for 325s. Conties run a bit on the smaller size. Did a lot of research on tire size width.

This is a Contie on a 12” wheel with 325


vs this is a Michelin 305 on a 12” wheel


This is an MP4 325 on a 12”. Not a fan of the meaty muscle car look so I will stick to the Conties.



my car with 305 Contie on a 12”
is it makes difference the different brand of tire , I was thinking about Toyo 888 is this tire tire thicker and make wider side ?
Old 03-17-2024, 09:26 PM
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rsalicrup
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Originally Posted by Sivak
is it makes difference the different brand of tire , I was thinking about Toyo 888 is this tire tire thicker and make wider side ?
On my car? Continentals Extremecontact Sport 02. R888 do run wider. I run those on the track wheels on the M3 on the same size as my street tires (Conties also) and they have a more blocky/square sidewall. Noisy as hell too.
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Old 03-18-2024, 02:57 PM
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@rsalicrup x2

R888s for the road are unbearably loud!

Very square sidewalls . . .



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