I was out checking out an '03 Mach 1 yesterday with a buddy who is thinking of buying it. Upon looking under the hood, I couldn't help but like the fact that the newer 'stangs use a hydroboost instead of a vaccum brake booster. I'm not sure if this topic has come up before but has anyone ever succesfully converted a '94-'95 to hydroboost? I know my brake booster is leaking since it won't hold vaccum more than an hour after shutdown, or after one push of the brake pedal, so upgrading wouldn't seem like a bad idea. Are the mounting bolts in the same pattern on the firewall? And can the pressure lines be made-up to hook up to our stock P/S pump or do you need the 4.6L pump to make it work? Thanks for any insight on this.
Hydroboost feasable on our cars?
- Thread starter 1TallMF
- Start date
SorsCode
20+ Year Stangneter 
I actually have the whole setup off an 03 GT sitting in my garage including power steering pump and Resivour with all the lines. I'm still contemplating on doing it on the 408 Car. Doable yes it can be done. The best place for info on it as on Modfox.com
eh all i know is my friend has a 96 cobra and my 95s with the brake booster feel way more responsive. His feels like you hafta step on the pedal harder for the same responsive. Im quite happy with what we got now i just needa upgrade rotors in pads. the only other upgrade i would do as far as brakes would be some calipers with more pistons 
I too love the look of it better.
Sorscode- any idea if there is a weight advantage of one versus the other?
Sorscode- any idea if there is a weight advantage of one versus the other?
I would be inclined to think that hydroboost would work better with Cobra calipers (probably since the '96-up cars don't require a different M/C). Weight difference I'm not really concerned with, since I also plan on adding weight with a new 418 in the next year or two, so the hydroboost unit would probably allow me to run almost any tall valve cover without any annoying clearance issues.
SorsCode - How much was the '03 setup you picked up, if you don't mind me asking?
SorsCode - How much was the '03 setup you picked up, if you don't mind me asking?
Sweet! Thats somewhat cheaper than a new vaccum booster, I might just have to source out a junkyard one and get it just for the hell of it, and see if I can make it work. Worst case I'd have to make a bracket to install a 4.6 P/S pump. If thats actually necessary, that is. I wouldn't mind getting rid of that nasty looking stock pump and reservoir anyway. At least the 4.6 pumps have a remote reservoir, which I could mount out of sight.
Okay, after looking at some 4.6L pumps, its obvious that it would be alot of work to install one on a 5.0L. Seems to me as there are only 3 lines to the system, one pressure line from the pump to the booster, one pressure line from booster to the steering rack, and one return line from the rack to the pump. If I'm not totally off my rocker on this, wouldn't it just be as simple as hooking up the pressure side of the stock pump to the inlet pressure line of the hydroboost, then running the supplied line from the booster to the stock location on the rack? Do both pumps provide about the same hydraulic pressure? The more I look into it, the more this seems like a bolt-in swap...
Booksix
New Member
Hey 1TallMF, any updates? I want to do this in a 68 (with r&p) and I like the idea that it's only 3 hoses!
Alas, no. My imagination was running wild back when I first posted that, these days I have not had the time or money to do much work to the 'stang on top of all of the stuff I have already done to it this year. I'm still interested in doing the swap some time next year though when I have the entire car torn apart. I have read that the stock booster is next to impossible to remove from the stock location, but yours being a '68 you probably don't have that problem. As for rigging one up to work on a classic mustang, I don't know much about that. You might need to fabricate an adapter plate for the firewall and make a custom-length rod for the pedal. Do any of the big brake companies (Baer, Brembo, etc) make adapter kits for newer-style boosters? Then getting lines made would be the least of your worries, lots of hydraulic shops can custom-make lines that will work with that setup.
By looking at the other thread about Cobra 03 on a SN95, i looked the entire thread and the swapper says that the Hydroboost has a difrerent configuration on the pushrod. Take a look
http://www.theturboforums.com/smf/index.php?topic=34314.msg459554#msg459554
The poster below this says that cutting the Vacbooster pushrod and soldering to the hydroboost have worked with him.
Other than that & the hoses fabrication it can be easy?
EDIT :
To avoid registration to the forums just to see the pic here it go
http://www.theturboforums.com/smf/index.php?topic=34314.msg459554#msg459554
The poster below this says that cutting the Vacbooster pushrod and soldering to the hydroboost have worked with him.
Other than that & the hoses fabrication it can be easy?
EDIT :
To avoid registration to the forums just to see the pic here it go
R.A.T.M.
Member
In case anybody is interested, I found this company:
http://www.hydratechbraking.com/forums/viewtopic.php?t=75&highlight=mustang
I don't know anything about them though.
http://www.hydratechbraking.com/forums/viewtopic.php?t=75&highlight=mustang
I don't know anything about them though.
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