Home » Public Forums » GMCnet » [GMCnet] booster and master cylinder JIM K
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| Re: [GMCnet] booster and master cylinder JIM K [message #128635 is a reply to message #128630] |
Sat, 04 June 2011 13:08   |
Gary Worobec
Messages: 867
Registered: May 2005
Karma: -1
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Senior Member |
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Yes, I see what you mean. You do have an inch more travel with the 1.25" MC
bore over the 34mm. but I have 80mm calipers right now so the pedal seems
OK. So how about keeping the stock MC and just adding the sensitized
booster?
Thanks
Gary and Joanne Worobec
1973 GMC Glacier
Anza, CA
----- Original Message -----
From: "Mr.erf ERFisher" <mr.erfisher@gmail.com>
To: <gmclist@temp.gmcnet.org>
Sent: Saturday, June 04, 2011 10:42 AM
Subject: Re: [GMCnet] booster and master cylinder JIM K
you will loose 300 pounds of pressure
http://gmcmotorhome.info/GMCBrakeCalcs.pdf
from 1000 pounds to 700 pounds
gene'
On Sat, Jun 4, 2011 at 10:36 AM, Gary Worobec <gtw5@earthlink.net> wrote:
> Jim,
> When adding the upgraded front suspension kit with the bigger rotors and
> calipers do think the P30 master cylinder and the sensitized booster
> upgrade
> would make cents$/sense? as well or will the stock stuff handle it.
>
> Thanks
>
> Gary and Joanne Worobec
> 1973 GMC Glacier
> Anza, CA
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Gene Fisher -- 74-23,77PB/ore/ca
“Give a man a fish; you have fed him for today --- give him a URL and
-------
http://gmcmotorhome.info/
Alternator Protection Cable
http://gmcmotorhome.info/APC.html
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| Re: [GMCnet] booster and master cylinder JIM K [message #128637 is a reply to message #128630] |
Sat, 04 June 2011 13:17 |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
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Senior Member |
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Gary, Unless you go to 6 wheel discs, the OEM MC will be sufficient, and in
fact has a higher pressure capability depending upon how hard that you press
on the brake pedal, can be as high as 1000 PSI. Both the OEM booster and the
sensitized ones deliver about the same peak pressure to the MC, the
difference is less pedal effort with the sensitized one. 80 MM caliper
pistons on the front is a good upgrade, as is yellow ceramic brake pads on
the front, with semi metallic linings on the rear. There are many opinions
about rear brakes, mainly centered on discs vs drums or a combination of
them. If you are considering the Chuck Algur reaction arm upgrade, you must
run discs on the axle that you have the reaction arm on. If everything is
shot on the drum brakes, replacement costs for disc upgrade is fairly
attractive. If you are going to all discs, I would wait until the
development is done on the ebrake setup, and change it all at the same time.
If you do go to 6 wheel discs, then a MC with a higher volume of fluid
displacement, similar to the P-30 will be required. Opinions vary somewhat
on brakes, kinda like tires and wheels.
Jim Hupy
Salem, OR
78 GMC Royale 403
On Sat, Jun 4, 2011 at 10:42 AM, Mr.erf ERFisher <mr.erfisher@gmail.com>wrote:
> you will loose 300 pounds of pressure
> http://gmcmotorhome.info/GMCBrakeCalcs.pdf
>
> from 1000 pounds to 700 pounds
>
> gene'
>
> On Sat, Jun 4, 2011 at 10:36 AM, Gary Worobec <gtw5@earthlink.net> wrote:
>
> > Jim,
> > When adding the upgraded front suspension kit with the bigger rotors and
> > calipers do think the P30 master cylinder and the sensitized booster
> upgrade
> > would make cents$/sense? as well or will the stock stuff handle it.
> >
> > Thanks
> >
> > Gary and Joanne Worobec
> > 1973 GMC Glacier
> > Anza, CA
> >
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> > http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> >
>
>
>
> --
> Gene Fisher -- 74-23,77PB/ore/ca
> “Give a man a fish; you have fed him for today --- give him a URL and
> -------
> http://gmcmotorhome.info/
> Alternator Protection Cable
> http://gmcmotorhome.info/APC.html
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
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| Re: [GMCnet] booster and master cylinder JIM K [message #128651 is a reply to message #128637] |
Sat, 04 June 2011 15:36 |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
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Senior Member |
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I agree with Jim H and Ken B.
On Sat, Jun 4, 2011 at 11:17 AM, James Hupy <jamesh1296@gmail.com> wrote:
> Gary, Unless you go to 6 wheel discs, the OEM MC will be sufficient, and in
> fact has a higher pressure capability depending upon how hard that you press
> on the brake pedal, can be as high as 1000 PSI. Both the OEM booster and the
> sensitized ones deliver about the same peak pressure to the MC, the
> difference is less pedal effort with the sensitized one. 80 MM caliper
> pistons on the front is a good upgrade, as is yellow ceramic brake pads on
> the front, with semi metallic linings on the rear. There are many opinions
> about rear brakes, mainly centered on discs vs drums or a combination of
> them. If you are considering the Chuck Algur reaction arm upgrade, you must
> run discs on the axle that you have the reaction arm on. If everything is
> shot on the drum brakes, replacement costs for disc upgrade is fairly
> attractive. If you are going to all discs, I would wait until the
> development is done on the ebrake setup, and change it all at the same time.
> If you do go to 6 wheel discs, then a MC with a higher volume of fluid
> displacement, similar to the P-30 will be required. Opinions vary somewhat
> on brakes, kinda like tires and wheels.
> Jim Hupy
> Salem, OR
> 78 GMC Royale 403
>
> On Sat, Jun 4, 2011 at 10:42 AM, Mr.erf ERFisher <mr.erfisher@gmail.com>wrote:
>
>> you will loose 300 pounds of pressure
>> http://gmcmotorhome.info/GMCBrakeCalcs.pdf
>>
>> from 1000 pounds to 700 pounds
>>
>> gene'
>>
>> On Sat, Jun 4, 2011 at 10:36 AM, Gary Worobec <gtw5@earthlink.net> wrote:
>>
>> > Jim,
>> > When adding the upgraded front suspension kit with the bigger rotors and
>> > calipers do think the P30 master cylinder and the sensitized booster
>> upgrade
>> > would make cents$/sense? as well or will the stock stuff handle it.
>> >
>> > Thanks
>> >
>> > Gary and Joanne Worobec
>> > 1973 GMC Glacier
>> > Anza, CA
>> >
>> > _______________________________________________
>> > GMCnet mailing list
>> > Unsubscribe or Change List Options:
>> > http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>> >
>>
>>
>>
>> --
>> Gene Fisher -- 74-23,77PB/ore/ca
>> “Give a man a fish; you have fed him for today --- give him a URL and
>> -------
>> http://gmcmotorhome.info/
>> Alternator Protection Cable
>> http://gmcmotorhome.info/APC.html
>> Â _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
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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