Home » Public Forums » GMCnet » Re: [GMCnet] Six wheel disks?
Re: [GMCnet] Six wheel disks? [message #328993 is a reply to message #328982] |
Fri, 09 February 2018 15:43 |
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USAussie
Messages: 15912 Registered: July 2007 Location: Sydney, Australia
Karma:
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Senior Member |
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Jim,
Some states require a mechanically actuated emergency brake. That's why I left the drums on the rears when I first registered it in
New Jersey.
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 James Hupy
Sent: Saturday, February 10, 2018 3:29 AM
To: gmclist@list.gmcnet.org
Subject: Re: [GMCnet] Six wheel disks?
We used to say in drag racing, weight reduction by one pound is equal to 2
horsepower gained. If you really want your coach to stop as well as
possible, leave the anvil at home as well as the stump it is mounted on.
Keep weight as far to the rear of the coach as practical, and as low as
possible. If you don't pack it along, you don't have to burn gas to
accelerate it, nor wear out brake lining trying to stop it. But, you
already know that, right?
I have installed most of the improved braking systems out there, and
by far, hands down, the most effective system at stopping the coach is a 6
wheel all disc system with a 1 ton front end with 11 inch rotors, and
reaction arms on the four rear rotors. I prefer using the standard master
cylinder, BUT, YOU GOT TO CHECK THE FLUID OFTEN IF YOU USE IT instead of
the P-30. Convert your original distribution valve to all disc, or replace
it with an all disc valve.
The trade off with this all disc system is no parking brake. I have
never set my parking brake since the first time I drove the coach after I
bought it. The cables were rusty and sticky and did not release after I
applied them. I very soon had smoking rear brakes. After several attempts
to repair them, including new rear cables, and a pulley system on the
forward cable, I quit pulling on the parking brake.
Reaction arm brakes will make your coach stop like a modern
automobile, and make everything in your coach that is not nailed down
subject to movement.
Jim Hupy
Salem, Or
78 GMC ROYALE 403
On Feb 9, 2018 5:44 AM, "Johnny Bridges via Gmclist" <
gmclist@list.gmcnet.org> wrote:
> We put six wheel disks and tru-traks on Stick Miller's second coach,
> replacing the big mid wheel disk that Lee Haeeison provrided. I don't
> think it
> made a great difference either way. Around here, rear drums with reaction
> arms do as well for less money. The rear disks >might< have an advantage
> in the mountains.
>
> --johnny
> --
> 76 26' Eleganza(?) with beaucoup mods and add - ons.
> Braselton, Ga.
> "I forgive them all, save those who hurt the dogs. They must answer to me
> in hell" - ol Andy, paraphrased
>
>
> _______________________________________________
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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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