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Post Info TOPIC: Anyone done a Hydroboost upgrade for their brake booster?


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Anyone done a Hydroboost upgrade for their brake booster?


I spotted a 1977 Chevy Motorhome in the local junkyard last week, and it had a Hydroboost behind the master cylinder.   I've known of Hydroboosts for a while, but had no idea when the manufacturers (I think it's actually a Bendix product) started using them in OEM applications.

From what I can tell, 1977 is towards the beginning of their use.   I grabbed it, and the hydraulic lines, of which some I had to cut.    In this application, the reservoir had nipples for 2 return lines.

So, has anyone done an upgrade from a vacuum booster to Hydroboost?   Any advice, etc?



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70 2+2 convertible
70 2+2 hardtop
70 Parisienne hardtop
72 GMC Sierra

 

 



Poncho Master!

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My 2+2 came with standard brakes

The finished product will need better braking.

 

This looks like a real neat idea.

Sweeting Performance - Hydro-boost Brake System for 1967-1970 Impala Caprice Biscayne Full Size Chevy (powerbrakeservice.net)

Hydro-boost Brake System for 1967-1970 Impala Caprice Biscayne Full Size Chevy



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Why would you need this Clint? 



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65 Laurentian post, 67 Grande Parisienne 4 door HT. 
 


Canadian Poncho Superstar!

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cdnpont wrote:

Why would you need this Clint? 


 When I put the 454 in my convertible back in 2006 the brakes were terrible, too much cam caused low vacuum.   I tried a vacuum pump, but abandoned it right away as it shook the whole car.  I resorted to a vacuum cannister, which improved things but not to where they should be.

I changed cam's a couple years ago (when I planned on installing my vacuum powered cruise control) and again while better, braking still isn't what it should be.

As I got this Hydroboost for $28, I figured it might be a good starting point for an upgrade.

While I had to cut some of the lines (mainly the pressure line from the power steering pump to the Hydroboost), I have a cousin here in town that works at a hose place that can make me up whatever I need.



-- Edited by seventy2plus2 on Monday 5th of December 2022 06:18:58 PM

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70 2+2 convertible
70 2+2 hardtop
70 Parisienne hardtop
72 GMC Sierra

 

 



Poncho Master!

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Absolutely love mine, hydro boost is from an early 90s Astro van. It apparently applies 2200 psi clamping power instead of 1200 psi on the rotors.748CE1EA-259A-4665-BD2B-2BF9C8FF749C.png



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pontiax- (canadian pontiac X frame)1964 Parisienne 2dr. hdtop lagoon aqua metallic (Q)

 



Canadian Poncho Superstar!

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Did you buy a kit complete with lines? Or did you piece it together?
I've also learned the 1995 & prior hydroboost units have the 1-5/8" hole to accept the master cylinder. I measured an old master cylinder removed from one of my cars, and it matches that measurement.

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70 2+2 convertible
70 2+2 hardtop
70 Parisienne hardtop
72 GMC Sierra

 

 



Poncho Master!

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ABC123 wrote:

My 2+2 came with standard brakes

The finished product will need better braking.

 

This looks like a real neat idea.

Sweeting Performance - Hydro-boost Brake System for 1967-1970 Impala Caprice Biscayne Full Size Chevy (powerbrakeservice.net)

Hydro-boost Brake System for 1967-1970 Impala Caprice Biscayne Full Size Chevy


 I bought this 1 with the wilwood master,took 4 months to get it.



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"The pursuit of perfection is frustrating and a waste of time because nothing is ever perfect. The pursuit of excellence is commendable and worth while. Therefore strive for excellence, not perfection"


Poncho Master!

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seventy2plus2 wrote:

Did you buy a kit complete with lines? Or did you piece it together?
I've also learned the 1995 & prior hydroboost units have the 1-5/8" hole to accept the master cylinder. I measured an old master cylinder removed from one of my cars, and it matches that measurement.


 I grabbed a nearly new booster from a wrecking yard and got the kit from Hydratech braking systems.



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pontiax- (canadian pontiac X frame)1964 Parisienne 2dr. hdtop lagoon aqua metallic (Q)

 

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