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[GMCnet] Brake Pressure Booster [message #324059] Wed, 20 September 2017 08:07 Go to next message
Ken Henderson is currently offline  Ken Henderson   United States
Messages: 8726
Registered: March 2004
Location: Americus, GA
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Senior Member
Someone may want to investigate this:

http://www.ecihotrodbrakes.com/brake_pressure_multiplier.html

Ken H.
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
Re: [GMCnet] Brake Pressure Booster [message #324073 is a reply to message #324059] Wed, 20 September 2017 14:32 Go to previous messageGo to next message
johnd01 is currently offline  johnd01   United States
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Registered: July 2017
Location: Sacrameot
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Senior Member
I am concerned with running out of pedal travel before I get a full stop.
The pedal is wide enough so I can stand on it with both feet to get the
extra pressure, but it does not work if I have run out of pedal travel.
This system sacrifices some pedal travel for the incresed brake pressure
with lower pedal pressure?
Is there anyone working on an anti-lock braking system for the rear axle?

On Wed, Sep 20, 2017 at 6:07 AM, Ken Henderson
wrote:

> Someone may want to investigate this:
>
> http://www.ecihotrodbrakes.com/brake_pressure_multiplier.html
>
> Ken H.
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
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>



--

*John Phillips*
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Johnd01 John Phillips Avion A2600 TZE064V101164 Rancho Cordova, CA (Sacramento)
Re: [GMCnet] Brake Pressure Booster [message #324076 is a reply to message #324073] Wed, 20 September 2017 15:09 Go to previous messageGo to next message
Ken Henderson is currently offline  Ken Henderson   United States
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
Senior Member
It might be worth trying the pressure multiplier with a P-30 (34mm) master
cylinder to compensate for the extra displacement.

It's not widely known, but Leigh Harrison put ABS on his GMC many years
ago; in fact, I think he told me that all of his brake kits had provision
for the rotation sensors, never populated. He said it was just too
complicated for him to try to support it.

Ken H.


On Wed, Sep 20, 2017 at 3:32 PM, John Phillips
wrote:

> I am concerned with running out of pedal travel before I get a full stop.
> The pedal is wide enough so I can stand on it with both feet to get the
> extra pressure, but it does not work if I have run out of pedal travel.
> This system sacrifices some pedal travel for the incresed brake pressure
> with lower pedal pressure?
> Is there anyone working on an anti-lock braking system for the rear axle?
>
> On Wed, Sep 20, 2017 at 6:07 AM, Ken Henderson
> wrote:
>
>> Someone may want to investigate this:
>>
>> http://www.ecihotrodbrakes.com/brake_pressure_multiplier.html
>>
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
Re: [GMCnet] Brake Pressure Booster [message #324094 is a reply to message #324076] Wed, 20 September 2017 23:54 Go to previous messageGo to next message
richshoop is currently offline  richshoop   United States
Messages: 190
Registered: April 2017
Karma: 0
Senior Member
Ken:
How do I get in touch with Leigh Harrison about the ABS brakes?


----- Original Message -----

From: "Ken Henderson"
To: "GMC Mail List"
Sent: Wednesday, September 20, 2017 1:09:46 PM
Subject: Re: [GMCnet] Brake Pressure Booster

It might be worth trying the pressure multiplier with a P-30 (34mm) master
cylinder to compensate for the extra displacement.

It's not widely known, but Leigh Harrison put ABS on his GMC many years
ago; in fact, I think he told me that all of his brake kits had provision
for the rotation sensors, never populated. He said it was just too
complicated for him to try to support it.

Ken H.


On Wed, Sep 20, 2017 at 3:32 PM, John Phillips
wrote:

> I am concerned with running out of pedal travel before I get a full stop.
> The pedal is wide enough so I can stand on it with both feet to get the
> extra pressure, but it does not work if I have run out of pedal travel.
> This system sacrifices some pedal travel for the incresed brake pressure
> with lower pedal pressure?
> Is there anyone working on an anti-lock braking system for the rear axle?
>
> On Wed, Sep 20, 2017 at 6:07 AM, Ken Henderson
> wrote:
>
>> Someone may want to investigate this:
>>
>> http://www.ecihotrodbrakes.com/brake_pressure_multiplier.html
>>
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Re: [GMCnet] Brake Pressure Booster [message #324096 is a reply to message #324094] Thu, 21 September 2017 05:52 Go to previous message
USAussie is currently offline  USAussie   United States
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
Senior Member
Rich,

Leigh Harrison has passed away.

Regards,
Rob M.
The Pedantic Mechanic
Sydney, Australia
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426
USA '77 Kingsley - TZE 267V100808


-----Original Message-----
From: Gmclist [mailto:gmclist-bounces@list.gmcnet.org] On Behalf Of richshoop@comcast.net
Sent: Thursday, September 21, 2017 12:55 AM
To: gmclist
Subject: Re: [GMCnet] Brake Pressure Booster

Ken:
How do I get in touch with Leigh Harrison about the ABS brakes?



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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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