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Porsche Forum Australia

1984 S2 euro and 1983 euro S Engine comparison

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1 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCH1984 S2 euro and 1983 euro S Engine comparison

Leading reported evidence

Use 84 intake and fuel system

Suggestion or failed attempt

No successful repair reported for this finding.

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Discussions that contain suggestions
1

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Suggestion · Original poster

I am planing on putting in the 83 engine using the 84 intake and fuel system and then reconditioning the 84.

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1984 S2 euro and 1983 euro S Engine comparison
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Leading evidence: 'Use 84 intake and fuel system' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Use 84 intake and fuel system' (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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1 matching discussions · 1 captured posts examined · 1 partial discussions

Frequently discussed actions (1)

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

Use 84 intake and fuel system

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 · Original poster

I am planing on putting in the 83 engine using the 84 intake and fuel system and then reconditioning the 84.

Original post Read captured discussion
1984 S2 euro and 1983 euro S Engine comparison
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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.

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

  • Porsche Forum Australia: 1 discussions

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

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Generation: 20261027T000231Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Just trying to ascertain the differences between the two engines I have purchased a 1983 euro s 300hp engine as a spare for my 84 S2 310hp engine and apart from the intake and fuel system am wondering what the differences are if any, mainly regarding the pistons and heads. I know the cams are different and the 84 has a bit higher compression. Trying to work out if it is worth updating pistons, heads and cams on the spare engine and if I would really notice any difference. I am planing on putting in the 83 engine using the 84 intake and fuel system and then reconditioning the 84. I am aware I will have to make provision for the flywheel sensor by drilling. Also thinking of just swapping over the cams as that's pretty quick and easy to do. Thanks

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