| Brake improvement booster [message #220439] |
Thu, 29 August 2013 22:37  |
fred v
Messages: 999
Registered: April 2006
Location: pensacola, fl.
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I just ran across this remote booster and it looks like it might have an application on our GMC's. One issue is that it has only one output line so it doesn't have the split system of modern brakes. So would it work to take the boosted output from our master cyl and further boost it?
http://www.mgb-stuff.org.uk/servo.htm
Fred V
Fred V
'77 Royale RB 455
P'cola, Fl
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| Re: [GMCnet] Brake improvement booster [message #220490 is a reply to message #220439] |
Fri, 30 August 2013 08:49  |
powerjon
Messages: 2446
Registered: January 2004
Karma: 5
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Fred,
Back in the early/mid 50's GMC Truck used a vacuum booster very similar to this on their pickup and larger trucks. At that time they did not use a master cylinder that had 2 circuits. By using the booster they had power brakes on the trucks. Not many cars of the time had power brakes or separate circuits either!
I know of several GMCer in our club (GMCGL) back in the late 80's early 90's that had adapted the remote brake booster to add extra braking to rear bogies. This booster that you found is also good for one circuit, front or rear.
Here is a picture of the old GMC Truck unit:
<http://www.gmcmhphotos.com/photos/member-galleries/p42566-brake-auxillary-booster.html>
This was before 6-wheel disk and all the new stuff that is available today.
JR Wright
GMC Great Laker MHC
GMC Eastern States
GMCMHI
78 Buskirk 30' Stretch
1975 Avion (Under Reconstruction)
Michigan
On Aug 29, 2013, at 11:37 PM, fred veenschoten <fredntoni@cox.net> wrote:
>
>
> I just ran across this remote booster and it looks like it might have an application on our GMC's. One issue is that it has only one output line so it doesn't have the split system of modern brakes. So would it work to take the boosted output from our master cyl and further boost it?
>
> http://www.mgb-stuff.org.uk/servo.htm
> Fred V
> --
> Fred V
> '77 Royale RB 455
> P'cola, Fl
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J.R. Wright
GMC GreatLaker
GMC Eastern States
GMCMI
78 30' Buskirk Stretch
75 Avion Under Reconstruction
Michigan
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| Re: [GMCnet] Brake improvement booster [message #220492 is a reply to message #220439] |
Fri, 30 August 2013 08:49 |
GMC_LES
Messages: 569
Registered: October 2009
Location: Montreal
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I seem to recall a similar set-up on 70s era C65 chevy 5-tons, but it was employed as a remote master cyl set-up. Certainly not a new idea.
Les Burt
Montreal
On 2013-08-29, at 11:37 PM, fred veenschoten <fredntoni@cox.net> wrote:
>
>
> I just ran across this remote booster and it looks like it might have an application on our GMC's. One issue is that it has only one output line so it doesn't have the split system of modern brakes. So would it work to take the boosted output from our master cyl and further boost it?
>
> http://www.mgb-stuff.org.uk/servo.htm
> Fred V
> --
> Fred V
> '77 Royale RB 455
> P'cola, Fl
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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Les Burt
Montreal
1975 Eleganza 26ft
A work in Progress
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| Re: Brake improvement booster [message #220566 is a reply to message #220439] |
Fri, 30 August 2013 17:33 |
fred v
Messages: 999
Registered: April 2006
Location: pensacola, fl.
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No, it's not a new idea but I've never seen anything about it here. So the question I have is can it be adapted for dual circuit brake systems? could you hook up 2 of them for front and rear brakes? It will definitly increase fluid pressure to the calibers.
Fred V
'77 Royale RB 455
P'cola, Fl
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| Re: [GMCnet] Brake improvement booster [message #220573 is a reply to message #220566] |
Fri, 30 August 2013 20:19 |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
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Fred,
I'm sure there are current production boosters similar to the one you
found, perhaps even with dual piston MC. But I'd bet that little British
unit has nowhere near the displacement needed for the GMC.
Ken H
On Aug 30, 2013 4:33 PM, "fred veenschoten" <fredntoni@cox.net> wrote:
>
>
> No, it's not a new idea but I've never seen anything about it here. So the
> question I have is can it be adapted for dual circuit brake systems? could
> you hook up 2 of them for front and rear brakes? It will definitly increase
> fluid pressure to the calibers.
>
> --
> Fred V
> '77 Royale RB 455
> P'cola, Fl
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
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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] Brake improvement booster [message #220708 is a reply to message #220573] |
Sat, 31 August 2013 20:04 |
fred v
Messages: 999
Registered: April 2006
Location: pensacola, fl.
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I agree; it is just the idea that I was trying to show. Do you think it would improve our brakes if one could be found with dual output?
| Ken Henderson wrote on Fri, 30 August 2013 20:19 |
Fred,
I'm sure there are current production boosters similar to the one you
found, perhaps even with dual piston MC. But I'd bet that little British
unit has nowhere near the displacement needed for the GMC.
Ken H
On Aug 30, 2013 4:33 PM, "fred veenschoten" <fredntoni@cox.net> wrote:
>
>
> No, it's not a new idea but I've never seen anything about it here. So the
> question I have is can it be adapted for dual circuit brake systems? could
> you hook up 2 of them for front and rear brakes? It will definitly increase
> fluid pressure to the calibers.
>
> --
> Fred V
> '77 Royale RB 455
> P'cola, Fl
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
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Fred V
'77 Royale RB 455
P'cola, Fl
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| Re: [GMCnet] Brake improvement booster [message #220717 is a reply to message #220708] |
Sat, 31 August 2013 22:02 |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
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Only if it had a booster more powerful than our 11" dual diaphragm.
Ken H.
On Aug 31, 2013 7:04 PM, "fred veenschoten" <fredntoni@cox.net> wrote:
>
>
>
> I agree; it is just the idea that I was trying to show. Do you think it
would improve our brakes if one could be found with dual output?
>
>
> Ken Henderson wrote on Fri, 30 August 2013 20:19
> > Fred,
> >
> > I'm sure there are current production boosters similar to the one you
> > found, perhaps even with dual piston MC. But I'd bet that little
British
> > unit has nowhere near the displacement needed for the GMC.
> >
> > Ken H
>
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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] Brake improvement booster [message #220756 is a reply to message #220717] |
Sun, 01 September 2013 14:13 |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
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Senior Member |
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For those that are looking for a more powerful brake system, we have the
Hydro Boost System. It is pricey, but very effective.Bob Stone has put in
considerable time to come up with this complete unit.
There are short cuts that one can do to lessen the cost, but from what we
know, it is not advisable.
Hydro Boost is what they are using on diesel engine units as there is no
engine vacuum.
On Sat, Aug 31, 2013 at 8:02 PM, Ken Henderson <hend4800@bellsouth.net>wrote:
> Only if it had a booster more powerful than our 11" dual diaphragm.
>
> Ken H.
> On Aug 31, 2013 7:04 PM, "fred veenschoten" <fredntoni@cox.net> wrote:
> >
> >
> >
> > I agree; it is just the idea that I was trying to show. Do you think it
> would improve our brakes if one could be found with dual output?
> >
> >
> > Ken Henderson wrote on Fri, 30 August 2013 20:19
> > > Fred,
> > >
> > > I'm sure there are current production boosters similar to the one you
> > > found, perhaps even with dual piston MC. But I'd bet that little
> British
> > > unit has nowhere near the displacement needed for the GMC.
> > >
> > > Ken H
> >
> _______________________________________________
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--
Jim Kanomata
Applied/GMC, Fremont,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
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Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
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