What Hydroboost Brake Booster should I buy? My cam is effecting my vac - Chevelle Tech
Brakes, Suspension & Steering Conversion questions & more.

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post #1 of 11 (permalink) Old Dec 5th, 19, 1:52 PM Thread Starter
 
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What Hydroboost Brake Booster should I buy? My cam is effecting my vac

What Hydroboost Brake Booster should I buy? My cam is effecting my vacuum lines. I realize the Willwood one is good but for $700-800 dollars I was hoping to get something more affordable that works for my 71 Chevelle (454cc with a big cam).
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post #2 of 11 (permalink) Old Dec 5th, 19, 2:13 PM
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Re: What Hydroboost Brake Booster should I buy? My cam is effecting my

Contact Hydratech they will be able to help you out.

Welcome to Hydratech Braking Systems :: High Performance Hydraulic Brake Assist Systems
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1972 Chevelle SS 454 "W" code
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post #3 of 11 (permalink) Old Dec 5th, 19, 10:03 PM
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Re: What Hydroboost Brake Booster should I buy? My cam is effecting my

Quote:
Originally Posted by Jarred Hamilton View Post
What Hydroboost Brake Booster should I buy? My cam is effecting my vacuum lines. I realize the Willwood one is good but for $700-800 dollars I was hoping to get something more affordable that works for my 71 Chevelle (454cc with a big cam).
Send a PM to Philip here on this site. He can tell you exactly what he used when he converted his wagon. He used pretty much all factory GM stuff and did it quite inexpensively.
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post #4 of 11 (permalink) Old Dec 6th, 19, 9:55 AM
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Jeff
 
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Re: What Hydroboost Brake Booster should I buy? My cam is effecting my

I'm using a factory booster out of a 05-06 tahoe that I pulled out of the junkyard with all the hoses for $40, 80's vette master cylinder (new), and love it. Still have 70s style front rotors and stock rear drums.

My car is completely hacked, so unsure of how it will bolt up to your factory setup (ps pump & box fittings), the post Brian linked above will probably answer those questions. The hydroboost I have fits well, I used the firewall bracket from the tahoe, removed the pressed in studs it had (and filled in those holes), then drilled 4 new holes to work with the chevelle firewall.

Showing original bracket when I was pushing out the factory mounting studs, also have a bracket I was initially going to use, but didn't.



welded in holes, drilled 4 new holes to work with chevelle firewall mount, test fitting (also made custom mount for clutch hydraulic cylinder)


Put stick on insulation between bracket and firewall to seal it up (large nut on booster is just temporarily holding it in place)



Installed, you can see how nicely everything lines up. I had to use a drift punch and hammer to tighten up the large nut on the booster. Have about 12k miles on it now with 0 problems.



If you're cheap like me and re-use the factory lines it looks like medusa's butt, but it works perfectly. You can clean it up with custom hoses, I just haven't got to that point.


*Jeff*

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post #5 of 11 (permalink) Old Dec 6th, 19, 11:30 AM
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Eddie
 
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Re: What Hydroboost Brake Booster should I buy? My cam is effecting my

On my Cutlass I'm using a booster out of late 90's Chevy truck that I picked up at Junkyard for $35. I modified the bracket that the old booster was mounted on and enlarged the firewall for it to line up. For the rod that connects to the pedal I used a tap and die kit from Harbor Freight ($40), cut the rod to length and cut the threads to match the universal rod extension that was on my old booster (eBay $20). For the lines I used the ones on Summit (CPP $114, part# HAHK-R). I used the reservoir from a new pump that I bought on rock auto ($50) that has 2 return ports, switched out the pump with my existing one so I can install the keyway pulley. I also drilled a small hole in the cap for venting. Reused my existing disc/drum master.

I spent little over $200, and had everything installed in one day. Everything works without a hiccup, car breaks better than ever. I will be doing exact same thing on the Chevelle.
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post #6 of 11 (permalink) Old Dec 6th, 19, 1:17 PM Thread Starter
 
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Re: What Hydroboost Brake Booster should I buy? My cam is effecting my

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Guys thank you all so much! This helped a ton!
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post #7 of 11 (permalink) Old Dec 6th, 19, 1:42 PM
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Re: What Hydroboost Brake Booster should I buy? My cam is effecting my

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Originally Posted by Jarred Hamilton View Post
Guys thank you all so much! This helped a ton!
Thought you wanted something more affordable, Hydratech has a good kit but it's not much more cheaper than Wilwood as a matter of fact I think it's more expensive at $520 for Hydro Boost unit only. Add the lines for $280 and you are at $800. (way overpriced JMO)

If I had to pick between the two I'd go with wilwood. Good luck with the project.
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post #8 of 11 (permalink) Old Dec 6th, 19, 9:00 PM
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Josh
 
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Quote:
Originally Posted by Eddie K View Post
Quote:
Originally Posted by Jarred Hamilton View Post
Guys thank you all so much! This helped a ton!
Thought you wanted something more affordable, Hydratech has a good kit but it's not much more cheaper than Wilwood as a matter of fact I think it's more expensive at $520 for Hydro Boost unit only. Add the lines for $280 and you are at $800. (way overpriced JMO)

If I had to pick between the two I'd go with wilwood. Good luck with the project.
I don't think Wilwood makes a hydroboost, Hydratech unit is very nice.
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post #9 of 11 (permalink) Old Dec 6th, 19, 9:10 PM
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Re: What Hydroboost Brake Booster should I buy? My cam is effecting my

Quote:
Originally Posted by Jarred Hamilton View Post
What Hydroboost Brake Booster should I buy? My cam is effecting my vacuum lines. I realize the Willwood one is good but for $700-800 dollars I was hoping to get something more affordable that works for my 71 Chevelle (454cc with a big cam).
Why not go with a smaller cam that will idle better, better mpg, make the brakes work, and gain performance throughout the curve where its needed for the street? It's really what should be in there anyway....
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post #10 of 11 (permalink) Old Dec 6th, 19, 9:38 PM
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Re: What Hydroboost Brake Booster should I buy? My cam is effecting my

I agree with Vince or just a good manual disc brake set up?


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post #11 of 11 (permalink) Old Dec 6th, 19, 11:58 PM
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Re: What Hydroboost Brake Booster should I buy? My cam is effecting my

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Originally Posted by Cheveezy View Post
I don't think Wilwood makes a hydroboost, Hydratech unit is very nice.
Yeah I realized that after looking through Wilwood site. I think OP is talking about one on ebay.
No doubt, Hydratech is really nice just pricey. I believe they take new Bendix unit and add the billet aluminum mounting bracket and pedal rod.
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