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718 GTS 4.0 noise on trackdays - my update - Page 1 - Boxster/Cayman - PistonHeads UK

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YOUR RESEARCH718 GTS 4.0 noise on trackdays - my update - Page 1 - Boxster/Cayman - PistonHeads UK

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Test reads anywhere between 90 and 98 db

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Suggestion · Original poster

Static testing reads anywhere between 90 and 98 dB.

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718 GTS 4.0 noise on trackdays - my update - Page 1 - Boxster/Cayman - PistonHeads UK
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Leading evidence: 'Test reads anywhere between 90 and 98 db' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Test reads anywhere between 90 and 98 db' (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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Test reads anywhere between 90 and 98 db

No successful repair reported for this finding.

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Reported fixes
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Unsuccessful attempts
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Discussions
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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.

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Suggestion · Original poster

Static testing reads anywhere between 90 and 98 dB.

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718 GTS 4.0 noise on trackdays - my update - Page 1 - Boxster/Cayman - PistonHeads UK
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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.

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

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POST 1Original post

In static tests, my mate's standard 718 GT4 was 91dB at Oulton Park and mine with a Ninemeister replacement silencer was 90dB - both at 4k revs I think a random position of the mic accounts for the difference, and given that the valves are probably open at 4k(?) both silencers have straight through pipe sections in operation at that point so they'll be pretty much identical in noise levels. The OPFs seem to do most of the silencing with the valves open, as you'd expect. Good to know you were OK on drive-bys though, I reckon I'd be OK too

POST 2 / ORIGINAL POSTEROriginal post

Just thought I’d share this as I couldn’t find relevant info myself when I researched a few months ago. Maybe people will find this useful. In short - I’ve not once had an issue with noise on any of the tracks. Static testing reads anywhere between 90 and 98 dB. Last Saturday it read 90 dB with sports exhaust on. Drive-by also no issues, including Bedford and Brands Hatch where limits are stricter. There were about 10 cars black flagged for noise at Bedford this weekend, GT3s amongst them but also BMW 6 series and others; I wasn’t one of them. I never short-shift or not turn the sports exhaust on. In short, 718 GTS 4.0 is perfectly fine as far as noise limits. I assume 718 GT4 will also be as it’s the same engine. Edited by px1980 on Monday 22 November 16:22

POST 3Original post

I think model year is also an important ref point, as I was black-flagged in my 2016 MY Boxster, in Standard mode. I am told that year on year cars are quieter as noise and emission regulations get stricter.

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