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987 Cayman S Brake Duct Upgrades

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YOUR RESEARCH987 Cayman S Brake Duct Upgrades

Leading reported evidence

Install on all four wheels

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
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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
Stainless steel brake lines installed on all four wheels for a much firmer pedal
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987 Cayman S Brake Duct Upgrades

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Leading evidence: 'Install on all four wheels' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'same day' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Install on all four wheels' (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 · 11 captured posts examined · 1 partial discussions

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Use on my

Performed · outcome unconfirmed

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0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

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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
PN and 99734148392 and 99734148492 are the ducts I used on my
Original post Read captured discussion
987 Cayman S Brake Duct Upgrades

same day

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Identified cause: 1
Suspected cause: 0
Reported fixes

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Discussions that suspect a cause: 1

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

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Suspected cause
They are super helpful and will get back to you probably the same day.
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987 Cayman S Brake Duct Upgrades

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.

Install on all four wheels

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
Stainless steel brake lines installed on all four wheels for a much firmer pedal
Original post Read captured discussion
987 Cayman S Brake Duct Upgrades

Use on my

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
PN and 99734148392 and 99734148492 are the ducts I used on my
Original post Read captured discussion
987 Cayman S Brake Duct Upgrades

Reported and suspected causes (1)

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

same day

No successful repair reported for this finding.

0
Identified cause: 1
Suspected cause: 0
Reported fixes

Read evidence and context

Discussions that suspect a cause: 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.

Suspected cause
They are super helpful and will get back to you probably the same day.
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987 Cayman S Brake Duct Upgrades

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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.

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

Planet-9: 1 discussions

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

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

Outcome without a verified action link
After not finding a suitable answer for the heat, I chose to remove the fender liners, problem solved.
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No unique explicit quoted action; no causal link assigned

Generation: 20261027T070717Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1Original post

Recently, I've been looking into brake upgrades for an upcoming track day next month and have decided on brake ducts. The reason for this is brake fade starts to set in after about lap 3 at the Hampton Downs National Curcuit in NZ. I also plan on upgrading my brake ducts to keep them cool for longer. The OEM brake duct attaches to the track control arm, and I have looked through the V-Pages for the 987 and found the part number as 997 341 043 00. I have cross referenced this part number to the V-Pages for the 997 Turbo and 997 GT2RS. The Turbo ducts look significantly bigger than the GT2RS so I'm thinking those will be better. I plan on ordering the Turbo ones next weekend, If anyone has any info, let me know. 997 Turbo: 997 341 483 03 (Left) 997 341 484 03 (Right) $40 USD ( Pelican Parts ) 997 GT2RS: 997 341 483 92 (Left) 997 341 484 92 (Right) $25 USD (Pelican Parts) The only change in my setup will be these brake ducts, so It will be interesting how just this impacts brake fade. Other posts about brake duct performance also had upgraded pads and other modifications. I'll update this post with info about the installation, whether any trimming is needed, and their perfomance on track compared to stock.

POST 2Original post

Nice. I didn’t know that the bigger 997 Turbo brake ducts would fit on the 987 control arm. Let us know how it goes. I assume you have already upgraded the brake fluid. If not, I think you’ll find better brake fluid to help you more with brake fade than any brake duct upgrade.

POST 3Original post

GT3 brake ducts are $12! That's what I put on mine

POST 4Original post

I assume you're talking the 997 GT3 ? The 997 GT3 track control arm part number is 996 341 043 06, and the Cayman is 997 341 043 00. if the GT3 track control arm is the same then that might open up some more possibilies to look into.

POST 5Original post

Porsche PN and 99734148392 and 99734148492 are the ducts I used on my 987.2

POST 6Original post

I have upgraded to Penrite DOT 5.1 brake fluid. I've heard there are better brands for track use and may change this again before the track day. I had my OEM brake fluid boil on me once and its very scary hauling *** towards a corner with no brakes.

POST 7Original post

I have these listed in order of importance: Brake System Race Prep Brembo HTC 64T Racing 635º Dry High temp brake fluid, this is a MUST Stainless steel brake lines installed on all four wheels for a much firmer pedal LiqiMoly 10/60 Engine Oil Sebro (German) Slotted rotors for more friction surface and gas removal better than drilled EBC Bluestuff street legal race/street brake pads GT3 Brake duct spoilers, right and left some tracks are really going to show the faults in your brake system like Laguna Seca here in California I know what it's like when your pedal goes to the floor at 80 mph before a turn and its not fun.

POST 8Original post

Why 10W60 oil? If you're tracking, I'd probably do 5W40 Driven DT40. Email Driven and ask them. They are super helpful and will get back to you probably the same day.

POST 9Original post

The manager of the Porsche only Indi I go to has been doing full day track days for years and preps full race cars and most of our local Porsche Club. He installs it for Cayman /Boxsters maybe others that do track days and drive their car hard. I live on the Central Coast of California so "Mediterranean" climate Synthoil Race Tech GT1 SAE 10W-60 : "Fully synthetic motor oil designed for extreme conditions. Developed specifically for high output, high performance engines. The wide viscosity range and unique formulation provides outstanding thermal stability for proper lubrication and low engine wear in tough conditions."

POST 10Original post

Racing brake fluid is a must. I started my track day driving in a supercharged VW R32, and added 2 Bennett's 6 piston setup (basically Cayenne / Touareg front calipers & rotors) with Hawk DTC 60 pads. Road America is my main track, 3 long straights. I was boiling the race fluid. Part of that was my inexperience. After not finding a suitable answer for the heat, I chose to remove the fender liners, problem solved. Add a few more years of experience, now driving a slightly modded Cayman R, lots of smiles.

POST 11Original post

https://www.planet-9.com/threads/cayman-brake-duct-upgrade.244047/?post_id=2143413#post-2143413 brake upgrades are a rabbit hole all on its own……enjoy the journey! i started with the ducts, high temp fluids and upgraded pads and have now reached the other end

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