5 bolt billlet hubs, Are they still being made? |
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5 bolt billlet hubs, Are they still being made? |
Randal |
Jan 2 2014, 01:16 PM
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#1
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Advanced Member Group: Members Posts: 4,446 Joined: 29-May 03 From: Los Altos, CA Member No.: 750 |
I know Mueller was involved in doing this, and Mark as well, but are they still available?
Also were they ever machined for the rear? And curious how the rotor bolted (or was fitted) to the hubs. |
McMark |
Jan 2 2014, 09:52 PM
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#2
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914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
If any are available, they're in Brad's hands. The rotor is a stock 911 piece and bolts on from the back with five M8 bolts. The real intent of the pieces was to install larger calipers and vented rotors on a four lug setup.
I thought you already had five lug? (IMG:style_emoticons/default/confused24.gif) The rear is always done by drilling the stock hubs. |
Randal |
Jan 4 2014, 02:01 PM
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#3
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Advanced Member Group: Members Posts: 4,446 Joined: 29-May 03 From: Los Altos, CA Member No.: 750 |
If any are available, they're in Brad's hands. The rotor is a stock 911 piece and bolts on from the back with five M8 bolts. The real intent of the pieces was to install larger calipers and vented rotors on a four lug setup. I thought you already had five lug? (IMG:style_emoticons/default/confused24.gif) The rear is always done by drilling the stock hubs. Right, probably the best way is to drill the fronts and sides of the hats to reduce weight. Or maybe someone has a CNC to machine them in aluminum, with bolt on rotors, or titanium? Titanium would be super light, but probably big $$ I'm guessing. I just wonder what a Titanium hub, with a titanium rotor would weigh? |
McMark |
Jan 5 2014, 01:55 PM
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#4
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914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
So you're searching for reductions in unsprung weight? Was it Ferrari or Alfa Romeo who ran the rear calipers on the transmission... (IMG:style_emoticons/default/idea.gif)
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Matt Romanowski |
Jan 5 2014, 04:11 PM
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#5
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Senior Member Group: Members Posts: 878 Joined: 4-January 04 From: Manchester, NH Member No.: 1,507 |
Inboard brakes bring other problems. Notice that they never caught on.
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Randal |
Jan 6 2014, 11:36 AM
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#6
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Advanced Member Group: Members Posts: 4,446 Joined: 29-May 03 From: Los Altos, CA Member No.: 750 |
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stownsen914 |
Jan 6 2014, 04:07 PM
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#7
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Senior Member Group: Members Posts: 913 Joined: 3-October 06 From: Ossining, NY Member No.: 6,985 Region Association: None |
One thing that comes to mind is that all braking force (on the rear at least) would travel through the CVs and axles. Certainly an added stress on CVs. I guess brake cooling could be more challenging too with them mounted inboard.
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eric9144 |
Jan 6 2014, 04:17 PM
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#8
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Advanced Member Group: Members Posts: 2,734 Joined: 30-March 11 From: San Diego, CA Member No.: 12,876 Region Association: Southern California |
I have a couple sets of the 4 Lug Billet hats that Brad was making back in the day (not for sale)... If pictures help I can post some...
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jd74914 |
Jan 6 2014, 05:16 PM
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#9
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Its alive Group: Members Posts: 4,780 Joined: 16-February 04 From: CT Member No.: 1,659 Region Association: North East States |
If any are available, they're in Brad's hands. The rotor is a stock 911 piece and bolts on from the back with five M8 bolts. The real intent of the pieces was to install larger calipers and vented rotors on a four lug setup. Right, probably the best way is to drill the fronts and sides of the hats to reduce weight. Or maybe someone has a CNC to machine them in aluminum, with bolt on rotors, or titanium? Titanium would be super light, but probably big $$ I'm guessing. I just wonder what a Titanium hub, with a titanium rotor would weigh? A Ti hub would be heavier than it's aluminum counterpart. If I were making hubs I would probably use something like 2024 Al because of it's combination of elevated temperature strength and specific stiffness. You could then get an Al-SiC MMC (metal matrix composite) rotor. (IMG:style_emoticons/default/drooley.gif) |
jd74914 |
Jan 6 2014, 05:20 PM
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#10
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Its alive Group: Members Posts: 4,780 Joined: 16-February 04 From: CT Member No.: 1,659 Region Association: North East States |
Eric,
Would you mind posting some pictures? (IMG:style_emoticons/default/smile.gif) General question for everyone... What is the difference between 911 and 914 stuts (neglecting caliper bolt spacing differences)? Is it wheel bearings? Or spindle dimensions? Or caliper mounting depth? I've never held the two in my hands to compare (or had a 911 apart to measure) and have always been curious. |
914werke |
Jan 6 2014, 06:08 PM
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#11
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"I got blisters on me fingers" Group: Members Posts: 10,040 Joined: 22-March 03 From: USofA Member No.: 453 Region Association: Pacific Northwest |
Attached image(s) |
eric9144 |
Jan 6 2014, 06:41 PM
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#12
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Advanced Member Group: Members Posts: 2,734 Joined: 30-March 11 From: San Diego, CA Member No.: 12,876 Region Association: Southern California |
Rich is faster than me (IMG:style_emoticons/default/biggrin.gif)
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Michael N |
Jan 6 2014, 11:26 PM
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#13
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Certifiable Group: Members Posts: 1,426 Joined: 6-June 04 From: San Jose, Ca Member No.: 2,164 Region Association: Northern California |
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Randal |
Jan 6 2014, 11:37 PM
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#14
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Advanced Member Group: Members Posts: 4,446 Joined: 29-May 03 From: Los Altos, CA Member No.: 750 |
Man those must be as valuable as ceramic lifters. |
ConeDodger |
Jan 7 2014, 05:39 AM
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#15
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Apex killer! Group: Members Posts: 23,576 Joined: 31-December 04 From: Tahoe Area Member No.: 3,380 Region Association: Northern California |
Randal if you get by Original Customs in the near future, there is a set of them on my car.
Not sure if he is interested in doing them but Mark Whitesell wanted to see them when he was in Sonoma recently... |
McMark |
Jan 7 2014, 10:36 AM
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#16
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914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
Mike Muller probably still has the drawings.
But the only thing saved by running this setup (AFAIK) is that you don't have to buy 911 parts and/or you have an investment in nice struts in your four lug housing. To answer the earlier question the 911 strut has a bigger spindle and therefore bigger bearings. The billet hubs are a replica of a stock 911 hub but designed to fit 914-4 bearings/spindle. If you have 911 struts already, this won't gain you anything I'm aware of. |
eric9144 |
Jan 7 2014, 10:59 AM
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#17
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Advanced Member Group: Members Posts: 2,734 Joined: 30-March 11 From: San Diego, CA Member No.: 12,876 Region Association: Southern California |
But the only thing saved by running this setup (AFAIK) is that you don't have to buy 911 parts and/or you have an investment in nice struts in your four lug housing. I got them to go with all the 911 type braking components but keep everything 4 lug just to mess with eveyone's heads (IMG:style_emoticons/default/shades.gif) ...now I guess I should get to putting it all on... (IMG:style_emoticons/default/dry.gif) |
jd74914 |
Jan 7 2014, 04:39 PM
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#18
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Its alive Group: Members Posts: 4,780 Joined: 16-February 04 From: CT Member No.: 1,659 Region Association: North East States |
Mike Muller probably still has the drawings. But the only thing saved by running this setup (AFAIK) is that you don't have to buy 911 parts and/or you have an investment in nice struts in your four lug housing. To answer the earlier question the 911 strut has a bigger spindle and therefore bigger bearings. The billet hubs are a replica of a stock 911 hub but designed to fit 914-4 bearings/spindle. If you have 911 struts already, this won't gain you anything I'm aware of. Thanks Mark! It's interesting that the spindle length is the same and only the bearings are different. |
jim_hoyland |
Jan 7 2014, 06:45 PM
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#19
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Get that VIN ? Group: Members Posts: 9,272 Joined: 1-May 03 From: Sunset Beach, CA Member No.: 643 Region Association: Southern California |
I got my set from Brad. I believe markasap (screen name)made them and probably has the CNG file for machining. Mark has been on the board.
He's a local So Cal guy, lives up near Topanga Canyon |
McMark |
Jan 7 2014, 10:05 PM
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#20
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914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
Unless Brad made another run, they were machined in San Rafael up here in NorCal. Across the street from SSI.
They were drawn/designed by Mike Mueller. |
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