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YOUR RESEARCHBrake upgrade for 996.1 C2
Leading reported evidence
Use corvette zr1 discs
Suggestion or failed attempt
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1
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Suggestion
We have a CCM brake package using Corvette ZR1 discs with RB 6/4 pot calipers for those cars equipped with
Leading evidence: 'Use corvette zr1 discs' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Use corvette zr1 discs' (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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7 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Rennlist: 1 discussions
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Generation: 20261027T033922Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Brake upgrade to 2007 GT3 PCCB specifications
:
Calipers Front
380mm
:
997.351.431.92
(L)
997.351.432.92
(R)
Calipers Rear
350mm
:
997.352.425.98
(L)
997.352.426.98
(R)
Disc Front
380mm
:
Brembo steel rotors
.
Disc Rear
350mm
:
Brembo steel rotors
.
Aluminum
Brembo hats for GT3
.
Adapter needed for steering spindle on front brakes: 130mm spindle to 225mm caliper mounting holes.
Porsche adapter
997.351.505.04
is for a 142mm spindle to 225mm caliper mounting holes. This adapter is for a 997 C4 or Turbo upgrade to the larger 225mm six-piston calipers.
No adapters needed for the rear brakes.
Has anyone completed this PCCB upgrade on a 996.1 C2?
Will the above adapter work? Adapter specifications are not available in PET.
What are the disc or rotor hats required for the PCCB front caliper off set?
Is a larger master cylinder required for the six piston front and larger four piston rear calipers?
Thank you for your expert 996 advice.
This.
C2/C4 - Same Suspension Design. Same Brake Design. Most Components Swappable between these models.
C4S/Turbo/GT2/GT3 - Same Suspension Design. Same Brake Design. Most Components Swappable between these models.
We have a CCM brake package using Corvette ZR1 discs with RB 6/4 pot calipers for those cars equipped with
130mm mounting spread in both front & rear spindles.
Rotors will have the same build as those just released for 991 GT3, but the adapters will be made specific for different spindles and offset.
https://rennlist.com/forums/991-gt3-...r-991-gt3.html
Due to the variety of retrofitting combination from end-user in caliper, rotor and spindle/upright etc, we have decided to sell only the whole package to assure the fitment and system integrity, and will not sell just the adapter (bracket) in order to avoid compatibility issue and trouble.
