Rennlist

driving difference between 17 and 18 inch wheels on 996 C2

Add to repair workspace

New repair projectOpen repair workspace

Original source

4 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHdriving difference between 17 and 18 inch wheels on 996 C2

Leading reported evidence

Fill rim out

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
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
I will be going to 275's just to fill the rim out on my next change (could be the pirelli width is narrower?).
Original post Read captured discussion
driving difference between 17 and 18 inch wheels on 996 C2

Read full discussion summary

Leading evidence: 'Fill rim out' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Fill rim out' (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.

Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.

Read captured replies

1 matching discussions · 4 captured posts examined · 0 partial discussions

Compare 1 other evidence results

Replace (could be the pirelli width is narrower?)

Suggestion or failed attempt

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 will be going to 275's just to fill the rim out on my next change (could be the pirelli width is narrower?).
Original post Read captured discussion
driving difference between 17 and 18 inch wheels on 996 C2

Frequently discussed actions (2)

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

Fill rim out

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 will be going to 275's just to fill the rim out on my next change (could be the pirelli width is narrower?).
Original post Read captured discussion
driving difference between 17 and 18 inch wheels on 996 C2

Replace (could be the pirelli width is narrower?)

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 will be going to 275's just to fill the rim out on my next change (could be the pirelli width is narrower?).
Original post Read captured discussion
driving difference between 17 and 18 inch wheels on 996 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.

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

Rennlist: 1 discussions

0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.

0 acknowledgements have no verified action link; they do not establish a repair result.

Generation: 20261026T213932Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Hi all, I have a new to me 2001 C2 Cab with 17 inch wheels. The car has almost 25000 miles. The question: Can 18 inch wheels (smaller sidewalls on tires) make the c2 behave a bit sharper? My Porsche Center advices me to go for 7,5Jx18 inch ET 50 front and 10Jx18 inch ET 65 rear. A good local Porsche specialist advices me to go for 8,5Jx18 inch ET45 front and 10Jx18inch ET54 rear, for better stability and better looks. Both advice the same tire dimensions and make (Michelin 18x225 and 18x265). What is the best option? Should I also consider the M030 springs & dampers? Sorry for these NooB questions, but I'm kind of new to the 996 Carrera 2, I used to drive a Boxster S. Oh and don't worry, already booked a Porsche driving course for March. Maximus

POST 2Original post

You answered my suggestion in your last sentence. i don't really think it's going to make as much of a difference except in tire price. Getting the proper air pressure each time, now thats the challenge.

POST 3Original post

Max, My config is below. My observations are that the 265 rears are not quite wide enough to fit nicely on the 10" rim. I will be going to 275's just to fill the rim out on my next change (could be the pirelli width is narrower?). The 225's seem to fit perfect on the 8" rim but going 8.5 I would def. go up to a 235. Mine came with the 18's so I have no comparison to the 17's, but I'm sure your ride will firm up some by going +1. Config... Offsets and sizes on OEM classics 18" R - 265/30-ZR18 on 10" rim offset 65 F - 225/35-ZR18 on 8" rim offset 52 (pirelli assymetrico's) RB

POST 4Original post

Agreed, The 275 looks like it fits better on the rear. I would have gone with the 285 but tey dont make it in the tires I use.

This is a source reference. Confirm exact model applicability in the original material.