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RWD C4S Bilstein B16 (PSS10) spring alternatives

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YOUR RESEARCHRWD C4S Bilstein B16 (PSS10) spring alternatives

Leading reported evidence

Run 70mm id

Suggestion or failed attempt

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Reported fixes: 0
Unsuccessful attempts: 1
Discussions

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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: 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
Looks like the 997 guys run 70mm ID with 7" length, but the PASM cars might be different than ours.
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RWD C4S Bilstein B16 (PSS10) spring alternatives

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Leading evidence: 'Run 70mm id' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Run 70mm id' (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 · 2 captured posts examined · 0 partial discussions

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Run c2 springs in the front

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

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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
In an effort to do this, I called bilstein to ask about running C2 springs in the front.
Original post Read captured discussion
RWD C4S Bilstein B16 (PSS10) spring alternatives

Set i have the dials

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
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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 find the front end of my car a little bouncy, even in autox, an especially when I am low on gas, regardless of what compression/dampening setting I have the dials on.
Original post Read captured discussion
RWD C4S Bilstein B16 (PSS10) spring alternatives

Use swift springs or any other aftermarket spring

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 · Original poster
Has anyone used Swift Springs or any other aftermarket spring on B16s?
Original post Read captured discussion
RWD C4S Bilstein B16 (PSS10) spring alternatives

Frequently discussed actions (4)

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

Run 70mm id

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
Looks like the 997 guys run 70mm ID with 7" length, but the PASM cars might be different than ours.
Original post Read captured discussion
RWD C4S Bilstein B16 (PSS10) spring alternatives

Run c2 springs in the front

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
In an effort to do this, I called bilstein to ask about running C2 springs in the front.
Original post Read captured discussion
RWD C4S Bilstein B16 (PSS10) spring alternatives

Set i have the dials

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 find the front end of my car a little bouncy, even in autox, an especially when I am low on gas, regardless of what compression/dampening setting I have the dials on.
Original post Read captured discussion
RWD C4S Bilstein B16 (PSS10) spring alternatives

Use swift springs or any other aftermarket spring

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
Has anyone used Swift Springs or any other aftermarket spring on B16s?
Original post Read captured discussion
RWD C4S Bilstein B16 (PSS10) spring alternatives

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.

2 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: 20261026T225432Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Hey all, I recently put a set of b16s on my C4S. My car has no front drivetrain, no spare or tools and a light weight PC950 battery. All in all the front end is almost 170 lbs lighter than a stock C4S. The b16s have a 255lb rated front main spring and a 115lb helper. I find the front end of my car a little bouncy, even in autox, an especially when I am low on gas, regardless of what compression/dampening setting I have the dials on. I am over the fact that the 4S B16s don't lower the car very much, but I'd like to settle the front down a bit. In an effort to do this, I called bilstein to ask about running C2 springs in the front. Turns out the .1 and .2 C2 and C4 and 4S springs are all the same rate and height in the fronts, according to bilstein, which surprised me. Has anyone used Swift Springs or any other aftermarket spring on B16s? They do make a 225lb spring. Does anyone know what size I would need to try? Looks like the 997 guys run 70mm ID with 7" length, but the PASM cars might be different than ours. If anyone could confirm ID and Height, I'd really appreciate it, so I don't have to take them apart to measure. Any other manufacturers out there? I could throw my spare in, but on the track that's more mass, and in daily driving it takes up a lot of the already tiny frunk space. Thanks

POST 2 / ORIGINAL POSTEROriginal post

Damn, no one's ever done this or experienced it? B16s gotta be the most popular kit.

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