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991S widebody wheels vs. narrow body wheels

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Old 01-10-2023, 04:36 AM
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driven991.1
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Originally Posted by driving_impaired
Thanks, this site is a great reference. But that's just simple math... I know the 4s wheels will be pushed out 18mm from where the 2s wheels would be (because 70-52)...

The bigger question is if anyone has actually done this or if I have 18mm to spare on the narrow body. But I guess I'll just have to measure when the car arrives and see if there's enough space!
Hi, do you recall what rim size did you go with my are 56 offset 20X11. I think they will be 20mm wider than stock classic rims from a 991.1S. if you have pictures of what yours look like from the side- lmk.

Did you go with Savini Wheels rims what was the offset? Thanks.
Old 01-10-2023, 04:39 AM
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Originally Posted by good2go

did you key in your wheels and tires? If the only difference is the off set then yes it will poke out 18mm as you stated. Often wheel are different width, tires are different widths and off set is different.

you are going to poke out more. Not an issue but might toss more dirt on the car.

I put narrow body body on my 4S. They sit in a little deeeper. No spacers. It a winter set and I would like less thrown on car. Because the wheels are a little wider it’s of by 7mm.

some people like poked out wheels to look more aggressive.

Assuming the car car has not been lowered poking out 18 will not affect anything.
mine are 11x 20 X x56 offset. I wonder if they will be too wide for a NB 991s
Old 01-10-2023, 02:46 PM
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Originally Posted by driven991.1
Hi, do you recall what rim size did you go with my are 56 offset 20X11. I think they will be 20mm wider than stock classic rims from a 991.1S. if you have pictures of what yours look like from the side- lmk.

Did you go with Savini Wheels rims what was the offset? Thanks.
I did get these Savinis. I no longer have the car now but the setup was 20 x 9 up front and 20 x 11 in the rear. Can't remember the offsets but according the website it looks like they are running 45 offset in the rear. I did not have any rubbing issues except for the occasional full compression occurrence (like a hard dip on the highway or something).

Here's a bunch of pretty good high res shots of my old car where you can get a good idea of the fitment and look of that setup. Remember this car was spec'd with PASM so it had the 10mm lower suspension.
Old 01-10-2023, 06:32 PM
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Originally Posted by driven991.1
mine are 11x 20 X x56 offset. I wonder if they will be too wide for a NB 991s
It will be just right. I have 15 mm spacers on my 20 X 11 Stock wheels with a 70 offset. It's now 55.
Old 01-11-2023, 01:17 AM
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Originally Posted by driving_impaired
I did get these Savinis. I no longer have the car now but the setup was 20 x 9 up front and 20 x 11 in the rear. Can't remember the offsets but according the website it looks like they are running 45 offset in the rear. I did not have any rubbing issues except for the occasional full compression occurrence (like a hard dip on the highway or something).

Here's a bunch of pretty good high res shots of my old car where you can get a good idea of the fitment and look of that setup. Remember this car was spec'd with PASM so it had the 10mm lower suspension.
What a nice color - Porsche original P paint to sample or? the site does not share the offset. Hope you get into a P car soon again.
Old 01-11-2023, 01:20 AM
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Originally Posted by Explorer16
It will be just right. I have 15 mm spacers on my 20 X 11 Stock wheels with a 70 offset. It's now 55.
Well I hope you are right. From what I read on ... they are 20MM wider so I have to wonder how much they will stick out (cause chips) and will it make the rider harder.

This is the size. Hope to get them installed by next weekend and confirm with pictures posted back on rennlist.
8.5 x 20 et 41
11 x 20 et 56
Old 01-11-2023, 02:21 AM
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Originally Posted by driven991.1
Well I hope you are right. From what I read on ... they are 20MM wider so I have to wonder how much they will stick out (cause chips) and will it make the rider harder.

This is the size. Hope to get them installed by next weekend and confirm with pictures posted back on rennlist.
8.5 x 20 et 41
11 x 20 et 56

The spacer in the front is 10 mm. That makes the offset 40 mm. Your offsets are 1 mm off from mine, front and rear. Just zoom to get a closer look.
Old 01-11-2023, 02:41 AM
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42 mm in the front.
Old 01-11-2023, 07:18 PM
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That is music to my ears, others have been discouraging based on self experience that they might not fit well.
Originally Posted by Explorer16

The spacer in the front is 10 mm. That makes the offset 40 mm. Your offsets are 1 mm off from mine, front and rear. Just zoom to get a closer look.
Old 01-13-2023, 05:33 PM
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Originally Posted by driven991.1
What a nice color - Porsche original P paint to sample or? the site does not share the offset. Hope you get into a P car soon again.
That was vinyl wrapped. And don't worry, I am in a GTS now ... also wrapped! :-)

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Old 02-10-2023, 01:31 AM
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Originally Posted by driven991.1
That is music to my ears, others have been discouraging based on self experience that they might not fit well.
So the rims fit, slightly stick out but not by much these are 11.5X from a Targa 4s and TTS which is quite wide.


Old 02-10-2023, 02:11 PM
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Originally Posted by driven991.1
So the rims fit, slightly stick out but not by much these are 11.5X from a Targa 4s and TTS which is quite wide

In those pics, what is the offset on the 11.5” rears?

Last edited by jberb55; 02-10-2023 at 09:30 PM.
Old 02-11-2023, 12:54 AM
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Originally Posted by jberb55
In those pics, what is the offset on the 11.5” rears?
Yeh 11.5
Old 10-05-2023, 08:50 PM
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Originally Posted by driven991.1
So the rims fit, slightly stick out but not by much these are 11.5X from a Targa 4s and TTS which is quite wide.

What’s the offset on the 4S rear wheels shown in the picture?
Old 10-05-2023, 10:29 PM
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I'm running +50 in the front and +70 in the rear on my C2S and they fit perfect!


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