| 110mm Brake Calipers [message #176208] |
Tue, 10 July 2012 08:03  |
tphipps
Messages: 3005
Registered: August 2004
Location: Spanish Fort, AL
Karma: 9
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There was a mention of 110mm brake calipers on the net awhile back. Has anyone done this? Anyone have the part numbers?
Willing to try.
Tom Phipps, MS II
2012 Phoenix Cruiser model 2552
KA4CSG
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| Re: [GMCnet] 110mm Brake Calipers [message #176234 is a reply to message #176208] |
Tue, 10 July 2012 17:46  |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
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Tom,
I've never heard (unless CRS took it) of 110 mm calipers on anything.
A search of the Google archive back to 8/31/09 yields no mention of "110"
"mm". Lots of "110"'s, but all referring to other than brakes.
Imagine how large a MC would be needed!
Ken H.
On Tue, Jul 10, 2012 at 9:03 AM, Thomas Phipps <tph1pp5@yahoo.com> wrote:
>
> There was a mention of 110mm brake calipers on the net awhile back. Has
> anyone done this? Anyone have the part numbers?
> Willing to try.
> Tom Phipps, MS II
>
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
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| Re: [GMCnet] 110mm Brake Calipers [message #176240 is a reply to message #176234] |
Tue, 10 July 2012 18:39 |
tphipps
Messages: 3005
Registered: August 2004
Location: Spanish Fort, AL
Karma: 9
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Ken, I may be wrong about the 110mm designation, however, the discussion covered a brake caliper with two pucks for greater pressure, using the OEM master cylinder. Leigh Harrison sent me a link to one that appears to fit.
Tom, MS II
2012 Phoenix Cruiser model 2552
KA4CSG
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| Re: [GMCnet] 110mm Brake Calipers [message #176243 is a reply to message #176240] |
Tue, 10 July 2012 18:55 |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
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That sounds more reasonable. I'd like to hear more, 'tho' I have NO
intention of changing again! :-)
I did find one link to "110 mm calipers" -- but it was for bike brakes; I
think they refer to the length of the operating arm.
Ken H.
On Tue, Jul 10, 2012 at 7:39 PM, Thomas Phipps wrote:
>
> Ken, I may be wrong about the 110mm designation, however, the discussion
> covered a brake caliper with two pucks for greater pressure, using the OEM
> master cylinder. Leigh Harrison sent me a link to one that appears to fit.
>
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
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| Re: [GMCnet] 110mm Brake Calipers [message #176264 is a reply to message #176243] |
Tue, 10 July 2012 21:33 |
Dave Mumert
Messages: 272
Registered: February 2004
Location: Olds, AB, Canada
Karma: 0
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If I recall correctly this is a caliper with dual 55mm pistons.
The effective radius of a disk brake is the distance from the axle to the
center of the piston, brake torque is directly proportional to the effective
radius. Using dual pistons with a smaller diameter can move the center of
the pistons closer to the edge of the rotor increasing the effective radius.
Dual 55mm pistons do not equal a single 110mm piston in piston area.
Dual 55mm pistons have an area of 4752 square mm, an 80mm piston has an area
of 5026 square mm.
It would only take a 5-6% increase in effective radius for the dual piston
caliper to exceed the brake force of an 80mm caliper while requiring 5% less
brake fluid.
This sounds like a winner to me.
Dave Mumert
> -----Original Message-----
> Subject: Re: [GMCnet] 110mm Brake Calipers
>
> That sounds more reasonable. I'd like to hear more, 'tho' I have NO
intention
> of changing again! :-)
>
> I did find one link to "110 mm calipers" -- but it was for bike brakes; I
think
> they refer to the length of the operating arm.
>
> Ken H.
>
> On Tue, Jul 10, 2012 at 7:39 PM, Thomas Phipps wrote:
>
> >
> > Ken, I may be wrong about the 110mm designation, however, the
> > discussion covered a brake caliper with two pucks for greater
> > pressure, using the OEM master cylinder. Leigh Harrison sent me a link
to
> one that appears to fit.
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| Re: [GMCnet] 110mm Brake Calipers [message #176269 is a reply to message #176243] |
Tue, 10 July 2012 22:07 |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
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Ken,
Jim Rountree made a presentation on the Chevy 1 ton front end he installed
in his GMC.
IMHO it leaves the current 1 ton FOR DEAD! He used the Chevy upper and lower
(FORGED) control arms. The brakes were dual pot with a total area of 110mm.
Here's a link to a picture of the parts he used.
http://www.gmcmhphotos.com/photos/showfull.php?photo=43537
Before anyone asks this modification takes someone with SERIOUS fabrication
skills and no Jim is not developing a kit.
BTW Dave Lenzi and the guy that built the Oscar Meyer Weiner Wagon out in CA
were working on the same project. As I understand it they threw in the towel
due to liability concerns.
Regards,
Rob M.
-----Original Message-----
From: Ken Henderson
That sounds more reasonable. I'd like to hear more, 'tho' I have NO
intention of changing again! :-)
I did find one link to "110 mm calipers" -- but it was for bike brakes; I
think they refer to the length of the operating arm.
Ken H.
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Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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