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> New PMB 914-6 Rear Calipers, Preproduction Info
914Sixer
post Jun 7 2024, 06:24 AM
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Saw this at PMB site, passing it along.


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infraredcalvin
post Jun 7 2024, 05:35 PM
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So these are being made as a repop, and are designed to work with an SC rotor, why aren’t the calipers machined so that they work with the sc rotor (the consumable part) without modification? (IMG:style_emoticons/default/confused24.gif)
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Graydingo
post Jun 8 2024, 01:41 PM
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QUOTE(infraredcalvin @ Jun 7 2024, 04:35 PM) *

So these are being made as a repop, and are designed to work with an SC rotor, why aren’t the calipers machined so that they work with the sc rotor (the consumable part) without modification? (IMG:style_emoticons/default/confused24.gif)


The non GT version of the 914-6 caliper that PMB sells (it doesn't have the spacer in the middle of the caliper halves) can work with the off the shelf non vented rotor that they also sell. So that would probably be the easy upgrade for most. For those that want a vented rotor though I think it's worth the extra effort to have the outside perimeter machined down to clear.

FWIW there's an old thread on here that explains that the caliper can be moved slightly on the ears to clear the bigger diameter 911 rotor. Though I don't see how this is possible or good practice as you wouldn't want the caliper to ever shift or move. I suppose you could make offset spacer or something to lock it in the right spot.
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mepstein
post Jun 8 2024, 03:24 PM
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QUOTE(Graydingo @ Jun 8 2024, 03:41 PM) *

QUOTE(infraredcalvin @ Jun 7 2024, 04:35 PM) *

So these are being made as a repop, and are designed to work with an SC rotor, why aren’t the calipers machined so that they work with the sc rotor (the consumable part) without modification? (IMG:style_emoticons/default/confused24.gif)


The non GT version of the 914-6 caliper that PMB sells (it doesn't have the spacer in the middle of the caliper halves) can work with the off the shelf non vented rotor that they also sell. So that would probably be the easy upgrade for most. For those that want a vented rotor though I think it's worth the extra effort to have the outside perimeter machined down to clear.

FWIW there's an old thread on here that explains that the caliper can be moved slightly on the ears to clear the bigger diameter 911 rotor. Though I don't see how this is possible or good practice as you wouldn't want the caliper to ever shift or move. I suppose you could make offset spacer or something to lock it in the right spot.


Most shops charge a pretty minimal fee to turn down the diameter of a rotor. I pay $20 to have it done.
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Posts in this topic
914Sixer   New PMB 914-6 Rear Calipers   Jun 7 2024, 06:24 AM
Graydingo   Great price. With the GT vented choice, the calipe...   Jun 7 2024, 07:26 AM
tailwind22   Yes the rotors need to be machined to reduce the d...   Jun 7 2024, 07:46 AM
914werke   So I didnt see it described there but there was an...   Jun 7 2024, 09:58 AM
burton73   Eric put those on Mark Sonners car in rear with th...   Jun 7 2024, 01:24 PM
burton73   Here is a picture Mark just sent. Its not that cle...   Jun 7 2024, 03:10 PM
infraredcalvin   So these are being made as a repop, and are design...   Jun 7 2024, 05:35 PM
Graydingo   So these are being made as a repop, and are desig...   Jun 8 2024, 01:41 PM
mepstein   So these are being made as a repop, and are desi...   Jun 8 2024, 03:24 PM
Montreal914   Maybe because these calipers are 914-6 replicas? ...   Jun 7 2024, 06:33 PM
Maltese Falcon   Maybe because these calipers are 914-6 replicas? ...   Jun 8 2024, 10:59 AM
Montreal914   Correct on the # 901-352-041-12 , we have those o...   Jun 9 2024, 11:26 AM
mepstein   Correct on the # 901-352-041-12 , we have those ...   Jun 9 2024, 12:17 PM
Maltese Falcon   Correct on the # 901-352-041-12 , we have those ...   Jun 9 2024, 08:44 PM
mepstein   [quote name='Montreal914' post='3150015' date='Ju...   Jun 10 2024, 05:27 AM
mb911   I wish this was available prior to my GT brake con...   Jun 8 2024, 04:21 PM
914Sixer   Those special rotors have not been NLA for a LONG ...   Jun 9 2024, 12:38 PM
davep   Those special rotors have not been NLA for a LONG...   Jun 9 2024, 02:16 PM


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