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Will a hydro booster work on our fieros? by Tweeder
Started on: 10-08-2014 12:11 AM
Replies: 14 (301 views)
Last post by: darkhorizon on 10-08-2014 03:08 PM
Tweeder
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Report this Post10-08-2014 12:11 AM Click Here to See the Profile for TweederSend a Private Message to TweederEdit/Delete MessageReply w/QuoteDirect Link to This Post
I have the opportunity to trade a part for a hydroboost set up. If it will benefit my fiero then I may make the trade.

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86 SE Convertible 3800sc 4t65e HD(2002), Gen V, 3.5 pulley, SD headers

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Lou6t4gto
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Report this Post10-08-2014 12:20 AM Click Here to See the Profile for Lou6t4gtoSend a Private Message to Lou6t4gtoEdit/Delete MessageReply w/QuoteDirect Link to This Post
first, WHAT is a hydroboost ?
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Ken_86gt
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Report this Post10-08-2014 12:28 AM Click Here to See the Profile for Ken_86gtSend a Private Message to Ken_86gtEdit/Delete MessageReply w/QuoteDirect Link to This Post
Why add the complexity? The vacuum system works very well on cars. If you have to rebuild it it will cost much more than your existing system.
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Report this Post10-08-2014 12:28 AM Click Here to See the Profile for TweederSend a Private Message to TweederEdit/Delete MessageReply w/QuoteDirect Link to This Post
It's a brake system that gets rid of the booster I place of a hydraulically actuated pump that is fed from the the power steering pump.
Mostly used on low to no vacuum braking situations.
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86 SE Convertible 3800sc 4t65e HD(2002), Gen V, 3.5 pulley, SD headers

[This message has been edited by Tweeder (edited 10-08-2014).]

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Tweeder
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Report this Post10-08-2014 12:32 AM Click Here to See the Profile for TweederSend a Private Message to TweederEdit/Delete MessageReply w/QuoteDirect Link to This Post

Tweeder

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Member since Aug 2012
 
quote
Originally posted by Ken_86gt:

Why add the complexity? The vacuum system works very well on cars. If you have to rebuild it it will cost much more than your existing system.


Was just wondering if it's a better braking set up. I will hopefully this winter be upgrading the brakes.

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sardonyx247
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Report this Post10-08-2014 01:19 AM Click Here to See the Profile for sardonyx247Click Here to visit sardonyx247's HomePageSend a Private Message to sardonyx247Edit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by Tweeder:

fed from the the power steering pump.


Do you see the problem here on a Fiero?
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Tweeder
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Report this Post10-08-2014 01:20 AM Click Here to See the Profile for TweederSend a Private Message to TweederEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by sardonyx247:


Do you see the problem here on a Fiero?


Nope, I have the 3800

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86 SE Convertible 3800sc 4t65e HD(2002), Gen V, 3.3 pulley, SD headers

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sardonyx247
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Report this Post10-08-2014 02:11 AM Click Here to See the Profile for sardonyx247Click Here to visit sardonyx247's HomePageSend a Private Message to sardonyx247Edit/Delete MessageReply w/QuoteDirect Link to This Post
but do you want to hook up a power steering pump, run lines up to the front, add weight to the car, add problems that are costly to fix, just for the same braking power?
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Tweeder
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Report this Post10-08-2014 02:15 AM Click Here to See the Profile for TweederSend a Private Message to TweederEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by sardonyx247:

but do you want to hook up a power steering pump, run lines up to the front, add weight to the car, add problems that are costly to fix, just for the same braking power?


That in a nut she'll is what I'm wondering, if all that's worth what ever gains in braking. There's more to it than I initially thought, seems to me the answer is no.

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Report this Post10-08-2014 02:16 AM Click Here to See the Profile for sleevePAPASend a Private Message to sleevePAPAEdit/Delete MessageReply w/QuoteDirect Link to This Post
Waste of time unless you are trying to build a lot of boost on the brakes.
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lateFormula
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Report this Post10-08-2014 07:03 AM Click Here to See the Profile for lateFormulaSend a Private Message to lateFormulaEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by Tweeder:
Mostly used on low to no vacuum braking situations.


Or on many Ford vehicles in the 80's and 90's.
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Report this Post10-08-2014 09:13 AM Click Here to See the Profile for TKSend a Private Message to TKEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by lateFormula:


Or on many Ford vehicles in the 80's and 90's.


And lots of GM turbo applications and especially the turbo diesel engines like the Duramax.

I see no upside in using hydroboost unless you have a boosted or low vacuum engine and can't get enough vacuum to run the brakes. Otherwise it's a fix for a problem that doesn't exist.

[This message has been edited by TK (edited 10-08-2014).]

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Report this Post10-08-2014 10:23 AM Click Here to See the Profile for Zac88GTClick Here to visit Zac88GT's HomePageSend a Private Message to Zac88GTEdit/Delete MessageReply w/QuoteDirect Link to This Post
One advantage to the hydroboost is the ability to have consistent multiple brake applications while still under throttle (if your an autocrossing left foot braker).
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theogre
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Report this Post10-08-2014 11:48 AM Click Here to See the Profile for theogreClick Here to visit theogre's HomePageSend a Private Message to theogreEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by Tweeder:
Mostly used on low to no vacuum braking situations.
 
quote
Originally posted by TK:
And lots of GM turbo applications and especially the turbo diesel engines like the Duramax.

Many cars w/o turbo etc uses this.
hydro booster is small and designers can use boost pressure as part of ABS system, auto braking, etc.
Some new cars does, or will use in near future, electronic brake boost for above reasons and more.

Converting Fiero vacuum boost to use either?
Even if you can, likely a bad plan. Anything goes wrong could cause big problem. If brake boost fails many won't be able to stop in even 2x normal stopping distance.

Note that Vac boost can fail w/o being totally dead. Common issues are Leaking or block vacuum line/filter, one of two diaphragms is dead, control valve problem, vac check valve bad or full of crap.

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darkhorizon
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Report this Post10-08-2014 03:08 PM Click Here to See the Profile for darkhorizonSend a Private Message to darkhorizonEdit/Delete MessageReply w/QuoteDirect Link to This Post
I know some of the blazer guys have done this, and results were mediocre at best.
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