 914 6 calipers rear limited reproduction run GB?, Built by PMB $799 A set |
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| Mikey914 |
 Aug 24 2016, 12:37 PM
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#1
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The rubber man  Group: Members Posts: 12,677 Joined: 27-December 04 From: Hillsboro, OR Member No.: 3,348 Region Association: None 
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We decided to make some steel calipers for Eric, as we are already dong the aluminum ones, and it turned out to be a fiasco!
My foundry guy decided to to use steel instead of a grade of iron that was hard-enable. Didn't find out unit I got the bill from my machinist as about 3x what we thought it should be. Long story short, we have about 4 sets of calipers that are very nice. The only difference you will notice over factory is the hardware is 8mm not 7mm. Looking to get $925 a set. Unfortunately, this still is selling at a loss. Eric has built up one set, and has the spacers for the vented ones, so just looking to cut some losses as they do me no good setting on a shelf. I will post in classifieds, but wanted to put this up here to give a little back story. I have one built set now and can have Eric build vented / non vented sets to order. These include the upgraded duro-anno pistons also! Attached thumbnail(s) 
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| NeunEinVier |
Aug 25 2016, 03:01 PM
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Member Group: Members Posts: 110 Joined: 24-December 15 From: In front of the smoke. Member No.: 19,488 Region Association: None |
The cast alloy calipers appear to be made from patterns matching the original calipers.
Shouldn't the patterns have been substantially enlarged (increased wall and rib thicknesses, etc) to account for use of the weaker alloy aluminum material? |
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| ConeDodger |
Aug 25 2016, 03:20 PM
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Apex killer! Group: Members Posts: 23,607 Joined: 31-December 04 From: Tahoe Area Member No.: 3,380 Region Association: Northern California
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QUOTE(NeunEinVier @ Aug 25 2016, 05:01 PM)  The cast alloy calipers appear to be made from patterns matching the original calipers. Shouldn't the patterns have been substantially enlarged (increased wall and rib thicknesses, etc) to account for use of the weaker alloy aluminum material? If you look close in this picture, you'll see my alloy - Alfa Romeo GTV-6 brakes. The have the same bolt pattern as the stock 4 cylinder fronts. They seem to me to be about the same size as the stock 4 cylinder fronts. I have tortured the living snot out of these two front calipers and I can't even wear the pads out! Remember, we're talking about alloy rear calipers. The rear calipers job is to make you stop straight and not much more. The possibility of vibration or flex has been handled with the larger hardware. So if the fronts can be the same size as their iron alternative (and they do the bulk of the work) why would the rears need to be bigger? What is it you think might happen? Attached image(s) 
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Posts in this topic
Mikey914 914 6 calipers rear limited reproduction run GB? Aug 24 2016, 12:37 PM
Mikey914 Another pic Aug 24 2016, 12:43 PM toolguy Just a sidenote. . Six calipers were NOT gold cad... Aug 24 2016, 12:44 PM Mikey914 one more Aug 24 2016, 12:48 PM Mikey914 Eric put them together, I do know the pistons are ... Aug 24 2016, 12:52 PM NeunEinVier Very pretty! The black oxide hardware will pr... Aug 24 2016, 03:06 PM
Mikey914
Very pretty! The black oxide hardware will p... Aug 24 2016, 05:19 PM sixnotfour My set of factory six rear calis. in the OG ATE b... Aug 24 2016, 03:12 PM NeunEinVier The fading is due to the slow breakdown of the pla... Aug 24 2016, 03:20 PM sixnotfour and yellow zinc is brighter.. Aug 24 2016, 03:34 PM pete000 Whats the story on the alloy version? I was ponder... Aug 24 2016, 06:07 PM Montreal914
Whats the story on the alloy version? I was ponde... Aug 25 2016, 07:45 AM Mikey914
Whats the story on the alloy version? I was ponde... Aug 25 2016, 11:15 AM ConeDodger
Whats the story on the alloy version? I was pond... Aug 25 2016, 01:03 PM mb911 They look great.. Not ready for them just yet thou... Aug 24 2016, 06:46 PM Mikey914 These are steel not the aluminum ones.
However, E... Aug 24 2016, 09:49 PM Mikey914 Allow ones are in production and for sale at PMB... Aug 25 2016, 11:03 AM pete000 The alloy ones are on my wish list... Aug 25 2016, 02:37 PM mepstein
The cast alloy calipers appear to be made from pa... Aug 25 2016, 03:38 PM jd74914
The possibility of vibration or flex has been han... Aug 25 2016, 05:37 PM Mikey914 These have been engineered and tested. With may ha... Aug 25 2016, 03:11 PM NeunEinVier The engineers of the OEM calipers must have design... Aug 25 2016, 04:35 PM Mikey914 Let me say this. The calipers that were cast in al... Aug 25 2016, 05:21 PM rhodyguy Mark, were the aluminum calipers halves cast from ... Aug 25 2016, 07:18 PM Mikey914 Guys, this thread is about the steel calipers. Aug 25 2016, 10:41 PM raynekat Mark:
How do I get a set of these steel calipers ... Aug 30 2016, 06:12 PM Mikey914 I can have Eric Build them up. The spacers for ven... Aug 31 2016, 11:29 PM raynekat Mark, I need a set of these with the spacer so I c... Sep 1 2016, 01:09 AM |
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