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What is the Correct Tire Pressure ?

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13 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHWhat is the Correct Tire Pressure ?

Leading reported evidence

Run 36/40 cold, street

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I run 36/40 cold, street.

Original post Read captured discussion
What is the Correct Tire Pressure ?
Frequently discussed work

Replace four tires

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Suggestion

I'm on the second set of rears and still run 44 as I'll replace all four tires when the fronts go in another 10K or so, but if you're looking to maximize treadwear on the rears my experience is 44 is too high.

Original post Read captured discussion
What is the Correct Tire Pressure ?
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Leading evidence: 'Run 36/40 cold, street' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace four tires' (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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Compare 4 other evidence results

Run 38/42

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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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Performed · outcome unconfirmed

On the street I run 38/42.

Original post Read captured discussion
What is the Correct Tire Pressure ?

Run 39 hot all the way around

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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 performed work without a confirmed outcome
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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.

Performed · outcome unconfirmed

On the track I run 39 hot all the way around.

Original post Read captured discussion
What is the Correct Tire Pressure ?

Run tham at 44 psi

Performed · outcome unconfirmed

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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 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 have gotten excessive wear in the center of my rear tires when I ran tham at 44 psi.

Original post Read captured discussion
What is the Correct Tire Pressure ?

Replace four tires

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.

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'm on the second set of rears and still run 44 as I'll replace all four tires when the fronts go in another 10K or so, but if you're looking to maximize treadwear on the rears my experience is 44 is too high.

Original post Read captured discussion
What is the Correct Tire Pressure ?
Frequently discussed actions (9)

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

Replace four tires

No successful repair reported for this finding.

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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'm on the second set of rears and still run 44 as I'll replace all four tires when the fronts go in another 10K or so, but if you're looking to maximize treadwear on the rears my experience is 44 is too high.

Original post Read captured discussion
What is the Correct Tire Pressure ?

Run 30 lbs

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Suggestion

I now run 30 lbs on all four tires once hot, in hot weather, and 32 lbs once hot, in cooler weather with great results for MY car and MY tires.

Original post Read captured discussion
What is the Correct Tire Pressure ?

Run 34/40 and have even experimented

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Suggestion

I am currently running 34/40 and have even experimented with 38 psi in the rear tires.

Original post Read captured discussion
What is the Correct Tire Pressure ?

Run 36/40 cold, street

No successful repair reported for this finding.

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Discussions that performed work without a confirmed outcome
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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 run 36/40 cold, street.

Original post Read captured discussion
What is the Correct Tire Pressure ?

Run 36/44 as

No successful repair reported for this finding.

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Read evidence and context
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 ran 36/44 as recommended on my 18s (285 rears), and the fronts wore perfectly while the rears exhibited wear as if over inflated.

Original post Read captured discussion
What is the Correct Tire Pressure ?

Run 38/42

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

Performed · outcome unconfirmed

On the street I run 38/42.

Original post Read captured discussion
What is the Correct Tire Pressure ?

Run 39 hot all the way around

No successful repair reported for this finding.

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Read evidence and context
Discussions that performed work without a confirmed outcome
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Performed · outcome unconfirmed

On the track I run 39 hot all the way around.

Original post Read captured discussion
What is the Correct Tire Pressure ?

Run 44 as i'll

No successful repair reported for this finding.

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Reported fixes
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Discussions
Read evidence and context
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'm on the second set of rears and still run 44 as I'll replace all four tires when the fronts go in another 10K or so, but if you're looking to maximize treadwear on the rears my experience is 44 is too high.

Original post Read captured discussion
What is the Correct Tire Pressure ?

Run tham at 44 psi

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 have gotten excessive wear in the center of my rear tires when I ran tham at 44 psi.

Original post Read captured discussion
What is the Correct Tire Pressure ?
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.

  • Rennlist: 1 discussions

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

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Generation: 20261026T130754Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

I have no sticker in my door jamb and no manual. I herd 40 - 44 psi. Can someone tell me what the correct tire pressure is for: 18" 225/40 front 265/35 rears. Thanks

POST 4Original post

36/44 is a good strarting point as rec'd by Porssche. On the track I run 39 hot all the way around. On the street I run 38/42.

POST 5Original post

Track pressure is definately different than street. See the post titled: "Warning: P Zero Corsa tire pressure". I now run 30 lbs on all four tires once hot, in hot weather, and 32 lbs once hot, in cooler weather with great results for MY car and MY tires. Yours will varry.

POST 6 / ORIGINAL POSTEROriginal post

I'll go out right now take a little out of the fronts and put a little in the rear. Thanks again for the help.

POST 7Original post

I ran 36/44 as recommended on my 18s (285 rears), and the fronts wore perfectly while the rears exhibited wear as if over inflated. I'm on the second set of rears and still run 44 as I'll replace all four tires when the fronts go in another 10K or so, but if you're looking to maximize treadwear on the rears my experience is 44 is too high.

POST 9Original post

I totally agree with you that 44 in the rear is too high. I have gotten excessive wear in the center of my rear tires when I ran tham at 44 psi. I am currently running 34/40 and have even experimented with 38 psi in the rear tires.

POST 10Original post

what helps avoid understeer on the track....harder in front so that the rear has more grip??

POST 11Original post

SPIKES.....here is a great tech article that explains what you want and then some http://www.tirerack.com/tires/tirete....jsp?techid=58

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