mustang289

I have been thinkin about going to a hydroboost set up for awhile now. I was at a show where I saw a 65 FB with a blown 2v motor in it and of course it was using the hydroboost setup. Ever since I put the 351 in the 65 the brakes haven't been the same. I added a booster but still nothing. I added a vacuum pump and still nothing to brag about. I contacted hydratech but I am looking to retrofit a hydroboost from a SN95 mustang. I would just like to hear if any of you have any advice for the swap or anything to look out for such as if it matters if the car has ABS or something of that matter. Which is the best M/C that came with a stock car, I know the 03 Cobra's had a sorry M/C beleive it or not. Thanks everyone!

silverblue66

Hydroboost? *confused* [&:]Why are you dissatisfied with your brakes? is it becasue you want to stop faster, or you want it to be less hard to get full presure on the pedal. If hydroboost is just a different way of getting power brakes, which I think it is. then it will not do anything (much) for barking performance. I always thought the booster just makes it easier to brake not improve braking performace. there is another thread on the subject of power brakes that is going on right now by moonweasel about the subject. it may be informative. I could be completely wrong though, so if I am ignore me.
Kip

mustang289

Well Hydroboost uses the pressure from the power steering pump to apply pressure. I do not feel that the booster is providing full pressure due to the lack of vacuum and I have tried every trick in the book and nothing is working. The hydroboost does not use vacuum from the engine at all, therefore it will apply the more pressure to the brakes than the booster could ever provide, even if it was working at its peak performance. Plus it applies a constant amount of pressure from the time you press the pedal to the time you take your foot off the pedal. AKA the pedal will not sink to the floorboard. A hydroboost setup can provide about 1200PSI of pressure to the brakes. Therefore it will provide more clamping power, aka better performance.

andrewmp6

Hydroboost uses the power steering lines and fuild to build pressure diesels used them for a while.The down side its ugly and a little bigger then just a master cylinder.None power id use http://www.jmcmotorsports.com/catalo...er%20Cylinders for power http://www.abspowerbrake.com/6466mustang8.html and more info on it http://www.abspowerbrake.com/electrichppage.html it has more psi then any other set up out there and you have 113 stops before the pump runs out of air.I have drove a 57 chevy with this set up it spotted better then it did with a normal brake booster and looks so much better.

JapanGT

This sounds strange. My setup is 4 wheel disk, Baer 13" on the front and 11"s on the rear. Without the vacuum assist ( larger master cylinder installed ),
the brakes are easy to use and I can lockall fourwheels at will. With vacuum assis it's as good as any modern sports car ( less the ABS ). I would be looking at your exising
brake set up, as if the vacuum pump made little difference, there is something wrong, either the wrong pump or somethingbetween the booster to the pads is not working properly.

Jav

mustang289

My engine produces around 8 In of HG at idle, the booster needs a minimum of 18 IN HG...so that is my problem and by eliminating the use of vacuum my brakes would work as well as they did before I installed the 351 with the crazy cam.

And to the gentleman who said it was ugly, I think it is more attractive than the 7inch booster, but that is just an opinion thing.

But has anyone done this swap, It is totally feasible I talked to the guy at the show, and he was hanging with Z06 vettes around road atlanta. Just would like some advice from somone who has gone through the swap as experience is the best tool. Thanks everyone

andrewmp6

Heres one on a truck http://rides.webshots.com/photo/2951...70994427jEXRFb see ugly.

mustang289

Well if you just throw anything in a car it has the potential to be ugly...

Here is a clean hydroboost where the owner actually put some thought into how it would look before he installed it.

Clean Hydroboost- http://s26.photobucket.com/albums/c1...t=100_6952.jpgSee- Cleaner than a big bronze-ish Booster and Rusty M/C

68droptop

its not the hydroboost in that pic that is ugly. it the the rest off the engine compartment that is ugly. if you took away all the loose wire hanging every were and just looked at the booster, it would not look to bad.

Daze

To actually answer your question, I have not done it, but I have done all the research, and have a booster sitting in my garage ready to go in. I am putting a hydrobost unit in my 62 Galaxie that came from a 98 Chevy pickup. I decided to go hydro so that I will still have room for the hydraulic clutch. The Cobra units you refer to are the same as the Chevy ones only rotated 90 degrees. The easiest retrofit would probably be to get a unit from a late 70 Granada or country squire. They both had hydroboost that will easily bolt up and allow you to run your current MC. If you want a smaller unit the mid 80s Cadillac units have the residual pressure reservoir internal and are a little cleaner looking. There are a couple of things you will need to deal with. First is spacing, the snout is really long on the hydroboost and some off sets of .5" to 1" will need to be used so less snout goes in to the cab proper pedal hook up is important and a block may be required to position the push rod parallel with the boost unit and still have it connect to the pedal at the correct location. Over all Hydroboost is way better than vacuum boost, it provides more stopping power and is less prone to leaks. Let me know if I can help in any other way. Here are a few links on the subject:

http://www.angryamerica.com/chevelles/hydroboost.html
http://www.maverickcomet.com/TechArt...ydroboost1.asp
http://www.members.tripod.com/surfmac/21.html
http://www.azbronco.org/tech11.htm
http://broncozone.com/forums/index.php?showtopic=10219