| electronic e brake [message #249203] |
Fri, 09 May 2014 08:55  |
xplorid
Messages: 213
Registered: February 2012
Location: Boise
Karma: 0
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Senior Member |
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I am considering an electric e brake a la e-stopp http://www.estopp.com/ in conjunction with a 4 disc/reaction arm upgrade for the rear. According to the website, their system provides about 2 inches of travel and 600 lbs of force when set. Any problems with the GMC adapting to that spec?
My understanding is the upgrade will permit the e brake cabling to be routed to the rear wheel set with the appropriate calipers, though I have heard that the stock system is a stretch (literally) to get there. I would love to get rid of the e brake bar in the cockpit. Just getting rid of the dimmer switch has made a world of difference in driving comfort, as there is a natural footrest right there.
Thanks
1974/94 GMCII by Explorer
Manny 6.5 TD Al radiator
1 ton front 4 bags back
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| Re: [GMCnet] electronic e brake [message #249278 is a reply to message #249203] |
Fri, 09 May 2014 16:06  |
powerjon
Messages: 2446
Registered: January 2004
Karma: 5
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Senior Member |
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Jeff,
This look really cool! I would suggest that new shorter cables such as they show on their website to the actuator mounted near the back of the coach.
JR Wright
78 Buskirk Stretch
75 Avion
Michigan
On May 9, 2014, at 9:55 AM, jeff sugheir wrote:
> I am considering an electric e brake a la e-stopp http://www.estopp.com/ in conjunction with a 4 disc/reaction arm upgrade for the rear. According to
> the website, their system provides about 2 inches of travel and 600 lbs of force when set. Any problems with the GMC adapting to that spec?
>
> My understanding is the upgrade will permit the e brake cabling to be routed to the rear wheel set with the appropriate calipers, though I have heard
> that the stock system is a stretch (literally) to get there. I would love to get rid of the e brake bar in the cockpit. Just getting rid of the
> dimmer switch has made a world of difference in driving comfort, as there is a natural footrest right there.
>
> Thanks
> --
> 1973/94 GMCII in Boise 76 455 with headers & Paterson distributor,1 ton front, 4 bags back, Precision Steering Gearbox
>
>
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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: electronic e brake [message #249295 is a reply to message #249203] |
Fri, 09 May 2014 22:58 |
Craig Lechowicz
Messages: 541
Registered: October 2006
Location: Waterford, MI
Karma: 0
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Senior Member |
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Albert Branscombe up in Canada has done a ton of work on effective parking brakes and various disc brake calipers for the rear. It would probably be worth having a chat with him before you buy something. Having any kind of e-brake at all is still on my to-do list, so I don't know all that much about them, but right off the top of my head, 2" doesn't sound like enough travel.
Craig Lechowicz
'77 Kingsley, Waterford, MI
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| Re: [GMCnet] electronic e brake [message #249303 is a reply to message #249203] |
Sat, 10 May 2014 05:01 |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
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Senior Member |
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Since I have a pneumatic "parking brake" setup which applies all of the
connected hydraulic brakes (including towed vehicle) and keeps them on as
long as the hydraulic pressure and battery power are available, I'm in no
hurry to install a mechanical brake. When I do, I'll probably utilize a
pair of 12 VDC linear actuators, one outside each frame rail and dedicated
to the brake(s) on that side. I'll use either spring mounting and limit
switches, or a load sensing controller to limit the force applied to the
brake arm, generally the weak link in the system. That approach is
essentially the same as the e-stopp, but I suspect the DIY approach would
be much cheaper.
Ken H.
On Fri, May 9, 2014 at 9:55 AM, jeff sugheir wrote:
> I am considering an electric e brake a la e-stopp
> http://www.estopp.com/ in conjunction with a 4 disc/reaction arm upgrade
> for the rear. According to
> the website, their system provides about 2 inches of travel and 600 lbs
> of force when set. Any problems with the GMC adapting to that spec?
>
> My understanding is the upgrade will permit the e brake cabling to be
> routed to the rear wheel set with the appropriate calipers, though I have
> heard
> that the stock system is a stretch (literally) to get there. I would
> love to get rid of the e brake bar in the cockpit. Just getting rid of the
> dimmer switch has made a world of difference in driving comfort, as there
> is a natural footrest right there.
>
> Thanks
> --
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
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| Re: electronic e brake [message #249329 is a reply to message #249203] |
Sat, 10 May 2014 14:07 |
xplorid
Messages: 213
Registered: February 2012
Location: Boise
Karma: 0
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Senior Member |
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So any thoughts on the 2" travel and 600 lbs of the e-stopp?
1974/94 GMCII by Explorer
Manny 6.5 TD Al radiator
1 ton front 4 bags back
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| Re: [GMCnet] electronic e brake [message #249341 is a reply to message #249329] |
Sat, 10 May 2014 18:46 |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
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Senior Member |
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Without having measured recently, I'd consider 2" marginally short,
especially since the calipers you're likely to use cannot tolerate any
pre-loading but must have a bit of slack in the control cable. As for the
600 lbf, that's more than the levers on the calipers can withstand -- but
using it to operate two calipers will mean each will see a maximum of 300
lbf -- and not even that after going around stays/pulleys and through
housings. It should be enough. With one per side, I'd at least try
200 lbf because
those friction losses would be mostly eliminated.
JMHO,
Ken H.
On Sat, May 10, 2014 at 3:07 PM, jeff sugheir wrote:
> So any thoughts on the 2" travel and 600 lbs of the e-stopp?
> --
>
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GMCnet mailing list
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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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