hydroboost question

[rag231]

My uncle picked up 2 Astro van hydroboost brake booster set ups. I know the angle of the fire wall bracket is different. What else is different and needed or would it be more feasible to go the Rock Auto route?

 

[TexasT]

Depends on your goals. If you want/need the accumulator, you need a custom bracket to mount the astro van piece.
If you want to bolt it in and bleed the systems the 84 T-Type unit is the way to go.
Chuck Leeper has the astro van unit with pix if you search. It is a super clean install but does use a custom bracket.

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[Chuck Leeper]

Depends on your goals. If you want/need the accumulator, you need a custom bracket to mount the astro van piece.
If you want to bolt it in and bleed the systems the 84 T-Type unit is the way to go.
Chuck Leeper has the astro van unit with pix if you search. It is a super clean install but does use a custom bracket.
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If you want the brkt, I think Elliott Sydnam, [in Dallas,Tx] will put it on your booster for you.

 

[Tom Tom Turbo]

I just did the 84 setup on my car and the install was pretty quick, pedal is much firmer and I think once I replace the wheel cylinders and the front lines I'll finally have brakes I trust.


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[rag231]

that's all that I am trying to achieve, brakes that I can trust.

 

[1KWIKSIX]

Please excuse my ignorance, but I have a couple of questions that I'm hoping someone more knowledgable will be abler to answer.

Does one really need the accumulator on a HB system? After all GM didn't use an accumulator on the 84-85 HB units that were installed on these cars .
What does this do?

 

[rag231]

That is a good question. I have seen HB's with no accummulator, 2 inch, 4 inch and now a 6 inch version. Hopefully it stores fluid for emergencies.

 

[TexasT]

I will muddy the waters some here. I have the 84 non accumulator on my 87. I think it works great.
I have the 99 accumulator version on my 99 suburban. Works great. Though I have lost a belt due to a tensioner pulley failure. This is not a fun situation . You are faced with no power steering or power brakes very quickly . Even with the accumulator. Made me know to keep an eye on the tensioner and idler pulleys and keep a good belt on it as I didn't want to repeat that.
If it makes you feel better to spend more and have the accumulator by all means don't be held back .
If you are cheap like me and like the idea of a pretty much bolt on swap, the 84 setup is factory engineered with 30 year old tech. Stops my car better that stock ever did and high boost launches are a pedal push away.
Your money and time, your call.


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