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Power brakes booster replacement
#1
Hi,
to install the hydraulic clutch linkage on the firewall is impossible because of the original big diameter brake booster.
Is there an alternative to replace the original with a smaller diameter booster to get the clutch linkage master cylinder under it ?
I have original vented disc in the front and 11 " drums at the back.
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#2
I went with a hydro-booster. might want to get that too.

1972 Satin Black Coupe, turns better than average, goes vroom with 303 RWHP.
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#3
oh dam;159120 Wrote:I went with a hydro-booster. might want to get that too.

hmmmm…. can you tell me more - is a new thing to me !
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#4
They run off pressure from the power steering pump. They have been around many years and aren't much bigger than the master cylinder, and mount between the master cylinder and firewall. There are a few manufacturers of retrofit systems, here's one: http://www.hydratechbraking.com/tech.html
Some people have pulled them from donor vehicles and replaced the vacuum booster with used units. Because of the importance of brakes I would be cautious about trying this.



“If you can't explain it simply, you don't understand it well enough.”
--Albert Einstein
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#5
Check Moderndriveline in Idaho for info on hyd clutch install with power brakes. I havent asked them that question, but they make full set ups and have figured out every oher problem, so could be a source to solve your problem. They make all sorts of custom brackets and lines and stuff.
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#6
Higgins56;159136 Wrote:
oh dam;159120 Wrote:I went with a hydro-booster. might want to get that too.

hmmmm…. can you tell me more - is a new thing to me !

Like someone said it runs off the pressure from the power steering pump. I think its a chevy part, i was told that. if you want PM me i can give you some info

Don C;159142 Wrote:They run off pressure from the power steering pump. They have been around many years and aren't much bigger than the master cylinder, and mount between the master cylinder and firewall. There are a few manufacturers of retrofit systems, here's one: http://www.hydratechbraking.com/tech.html
Some people have pulled them from donor vehicles and replaced the vacuum booster with used units. Because of the importance of brakes I would be cautious about trying this.

I havent had any issues with the hydro, and ive had some pretty close calls.

1972 Satin Black Coupe, turns better than average, goes vroom with 303 RWHP.
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#7
Hydraboost is an awesome upgrade from any vacuum booster design. It significantly raises brake line pressure and the clamping load at the caliper. That said these old cars were not designed with such high pressures in mind. I would be a little worried it could aggravate other issues if the rest of the system isn't up to the task.

The Chevy Astro Van booster is the common module I have used in the past with great luck. Don't get hung up on the Chevy or Ford thing. Only a few companies produce them. So the same hydroboosters are used on a lot of vehicles.

Tallonhydraulics.com is a great place to get adapter parts also.
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#8
mdan575;159325 Wrote:Hydraboost is an awesome upgrade from any vacuum booster design. It significantly raises brake line pressure and the clamping load at the caliper. That said these old cars were not designed with such high pressures in mind. I would be a little worried it could aggravate other issues if the rest of the system isn't up to the task.

The Chevy Astro Van booster is the common module I have used in the past with great luck. Don't get hung up on the Chevy or Ford thing. Only a few companies produce them. So the same hydroboosters are used on a lot of vehicles.

Tallonhydraulics.com is a great place to get adapter parts also.

THank you all of these comments.
In my case all elements in the braking system are refurbished - but according to the original standards - not todays standards.
If that is sufficient to comply with the hydraulic booster - then why not to consider it.
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#9
The hydraboost brake line pressures are about the same as a vacuum booster and use the same kind of brake components. One thing about Astro vans is that they have metric fittings.
Ford started using them in the '70s in T-birds and Lincoln's and I believe they have US fittings. You can get one from NAPA for around $180.



“If you can't explain it simply, you don't understand it well enough.”
--Albert Einstein
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#10
Don C;159417 Wrote:The hydraboost brake line pressures are about the same as a vacuum booster and use the same kind of brake components. One thing about Astro vans is that they have metric fittings.
Ford started using them in the '70s in T-birds and Lincoln's and I believe they have US fittings. You can get one from NAPA for around $180.


Thats not the results that truckin magazine got when they did a hydroboost conversion. Stock vacuum booster for them on an 01 Chevy truck was only getting a maximum of 700psi pressure. After the conversion they were seeing pressures as much as 2k psi. Not a Mustang but I would say the results should be comparable.

http://www.truckinweb.com/tech/1112tr_20...st_brakes/
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