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Custom wheel specs - 996.1 C2

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THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

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YOUR RESEARCHCustom wheel specs - 996.1 C2

Leading reported evidence

Use 295 tyres and your preferred 265 are less wide

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I personally think that you'll be fine with an ET47 on a 10" wide wheel, it will be 3mm more 'out' than mine but I'm using 295 tyres and your preferred 265 are less wide.

Custom wheel specs - 996.1 C2
Frequently discussed work

Run 10in et38

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Suggestion

I've run 10in et38 with 265 and no rubbing.

Custom wheel specs - 996.1 C2
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Leading evidence: 'Use 295 tyres and your preferred 265 are less wide' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Run 10in et38' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.

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Run 10in et38

Suggestion or failed attempt

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Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

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Suggestion

I've run 10in et38 with 265 and no rubbing.

Custom wheel specs - 996.1 C2

Run slightly less

Suggestion or failed attempt

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Discussions
Read evidence and context

Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that contain suggestions
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0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion

I've run slightly less with 265/35 and 225/40.

Custom wheel specs - 996.1 C2

Use 11" wide wheel

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Read evidence and context

Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion

If you use a 11" wide wheel then you would really want to use a wider tyre, probably 285+ as you state.

Custom wheel specs - 996.1 C2

Use 9mm spacers

Suggestion or failed attempt

No successful repair reported for this finding.

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Reported fixes
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Discussions
Read evidence and context

Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion

Standard size and offset 18" wheels but using 9mm spacers.

Custom wheel specs - 996.1 C2
Frequently discussed actions (6)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

Run 10in et38

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Discussions that contain suggestions
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0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion

I've run 10in et38 with 265 and no rubbing.

Custom wheel specs - 996.1 C2

Run slightly less

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion

I've run slightly less with 265/35 and 225/40.

Custom wheel specs - 996.1 C2

Use 11" wide wheel

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion

If you use a 11" wide wheel then you would really want to use a wider tyre, probably 285+ as you state.

Custom wheel specs - 996.1 C2

Use 295 tyres and your preferred 265 are less wide

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that performed work without a confirmed outcome
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed

I personally think that you'll be fine with an ET47 on a 10" wide wheel, it will be 3mm more 'out' than mine but I'm using 295 tyres and your preferred 265 are less wide.

Custom wheel specs - 996.1 C2

Use 9mm spacers

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion

Standard size and offset 18" wheels but using 9mm spacers.

Custom wheel specs - 996.1 C2

Use wider tyre, probably 285+ as you state

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion

If you use a 11" wide wheel then you would really want to use a wider tyre, probably 285+ as you state.

Custom wheel specs - 996.1 C2
Coverage and how to read this overview

Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.

13 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

  • 911uk: 1 discussions

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Generation: 20261026T122219Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Hello all, Appreciate this has been done to death but any recent thoughts or insights would be greatly received. I am not an expert in this so seems dangerous to proceed without putting it out to the masses first! Story goes: I am conversing with a company who can make custom sized wheels. The suggestion I have had from them for specs is as follows (believe based on a gen2 car): F: 18" 8J ET41 (presume 225/40 or wider?) R: 18" 11J ET59 (presume 295/30?) Current Spec: Car = 996.1 C2 Bilstein B8 & H&R 30mm springs, X74 setup (no aerokit, rear arches not rolled) F: 7J 205/50/17 ET55 R: 9J 255/40/17 ET55 I don't really want to go to 11s on the rear (don't need more grip!) so a 8/10 combination seems like a good compromise? I don't want to over-tyre, and I am reluctant to move away from 17s but 18 seems like a better choice for tyres, etc. I'm not tracking the car and wish to retain a 'fast road' X74 type setup. Arches can be rolled if necessary but I suppose I am trying to avoid that unless convinced otherwise. This leads me to what I'm currently thinking: F: 8J ET41 225/40/18 R: 10J ET50 265/35/18 Does that sound at all sensible/plausible/worth doing? I'd simply buy some LMs if I could a) find some b) afford them(!) I am drawing on inspiration from others and how the car feels currently, which is great but I hate the look of my wheels (std C4 17s), one quite bent, and they tuck a great deal. Like I say, I'm not an expert so any view is appreciated - if this is a horrible idea it's fine to say so! Thanks for reading this far and any input is greatly valued Will :thumbs:

POST 2Original post

This is what I have on my 996.1 if it is of any help: 8J ET50 (15mm spacers = ET35) 225/40R18 10J ET65 (15mm spacers = ET50) 295/30R18 M030 shocks with Eibach -30mm springs & X74 geo. I rolled the rear arches due to tyre contact with the rear arches when I was carrying a passenger but might not have needed it as I later had an X74 alignment (more rear negative camber) and may have solved the issue. Wheels offsets look fine to mine and wouldn't want them in/out any more.

POST 3Original post

I can't help specifically but Rob aka 82DVY on here did a vid on his custom wheels. Might be of interest? https://youtu.be/iyZIx9Z2r-I

POST 4 / ORIGINAL POSTEROriginal post

Yes that is helpful, thanks. Sounds positive for a 265/35 and no arch rolling, have -1^35 rear camber currently. How pokey (technical term) are your fronts? Thanks and yes that video is guilty of making me consider this more! Lots of great info though and has been useful to compare against

POST 5Original post

Similar tp 911munKey: Standard size and offset 18" wheels but using 9mm spacers. Happy with that look. Also have H&R and Bilstein B8's. Gives you an idea...... Used to have 18 x 11" ET63. which looked like this: Fronts are all standard 18 x 8" ET 50's but the Fuchs have the 9mm spacer. Cheers James

POST 6Original post

The sweet spot for having wheels in line with arches is 10in et40 and 8.5in et40. Depends if you want that or a slight tuck. I've run slightly less with 265/35 and 225/40. With a 10in rear around et45 is nice, same with 8.5in front.

POST 7 / ORIGINAL POSTEROriginal post

Thanks both, that helps! And to James for the pics too, car looks excellent! Mine is a non aero car so a slight reduction on that I think would be ideal. Think I'm pretty settled on the 41/50ET 8/10J with 225/265 tyres - seems like the best compromise for what I'm after. I'll keep researching but am quite close to ordering me thinks! :thumb:

POST 8Original post

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POST 9 / ORIGINAL POSTEROriginal post

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POST 10Original post

I personally think that you'll be fine with an ET47 on a 10" wide wheel, it will be 3mm more 'out' than mine but I'm using 295 tyres and your preferred 265 are less wide. If you use a 11" wide wheel then you would really want to use a wider tyre, probably 285+ as you state. ET59 is 9mm more 'in' than mine (ET50) but the extra 1" width should make the rim stick out 1/2" more so almost the same as the 10" wheel. All assuming that I've got my wheel maths correct, there are online wheel size calculators that you can use to compare and give your brain an easy time! https://www.willtheyfit.com/wheels/

POST 11Original post

10in et47 with a 265 is no issue at all. I'd day it's close to spot on, it's only 3mm away from what you wanted. I've run 10in et38 with 265 and no rubbing.

POST 12 / ORIGINAL POSTEROriginal post

Thanks both! Spent far too long on willtheyfit so it's been helpful to get some actual feedback. Like you say 3mm is hardly a massive change. Well I've ordered them now so they'll have to fit, I'll report back in 4-6 weeks :grin:

POST 13Original post

Good lad, wheels makemor brake the car so ordering what you want is best.

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