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How does the factory mustang hydroboost work for auto x?

Right now I have a 95 v6 stang and a 97 GT parts car. The 95 has no motor or trans, I have a 351W and a 5 speed trans to swap in to it. I was going to drag race the car, but have changed my mind, I want to auto x it. Right now I have the brake booster and master cyl off, was going manual on that. I was also thinking about manual steering, but now i'm thinking i might need power steering also. With the 97 parts car I have everything needed to do the swap, what do you guys think?
 

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I've been thinking about a hydra boost swap for my fox w/ m-2300k kit. What all does that involve and is it worth it. This was mostly in prep for a 4v mod motor, i don't see how it would fit with the booster i have now. Anybody done this yet?
 

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I would stick with "simple/proven". The hydroboost is overly heavy and complicated. I would only opt for it when space warranted doing so.
 

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I did my own swap using an Astro van unit. See my site.

The only trouble is purging it of air bubbles. Plenty of boost that comes in progressively. The harder you push the more boost.

The mustang unit is the smallest hydroboost they make.
 

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I did my own swap using an Astro van unit. See my site.

The only trouble is purging it of air bubbles. Plenty of boost that comes in progressively. The harder you push the more boost.

The mustang unit is the smallest hydroboost they make.
I love your web page and how savy you are.......You don't meet to many people like you anymore.

Keep up the good work.
 

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Discussion Starter #8
I did my own swap using an Astro van unit. See my site.

The only trouble is purging it of air bubbles. Plenty of boost that comes in progressively. The harder you push the more boost.

The mustang unit is the smallest hydroboost they make.
WOW thats a heck of a website. very cool swaps and other info you have there. Thanks for the info.
 

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I have also debated hydroboost...reason being i want to eventially perform a 4.6L swap down the road and it would be one less thing to worry about.

The advantage is that the hydroboosted Mustangs do run an MC that is 1/16" larger than their vacuum boosted counterpart, so they do offer more assist.

Exampes:

94-95 Cobra 15/16" MC vacuum brakes
96-98 Cobra 1" MC hydroboost
Same brakes

Also, 99-04 GT 1 1/16" MC hydroboost
99-04 V6 1" MC vacuum brakes.
Same brakes again

So something to keep in mind after the swap is to feel out your brake pedal and decide if you like the level of assist you have. It may be necessary to up your MC bore size 1 1/16"
 

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Does anybody know if there is a difference between 99-04 GT and Cobra Hydrobooster's?

Is the MC bore size with the 99-04 GT and Cobra the same? Can anyone chime in?
 

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99-01 has a smaller rear MC thread than the 03/04. The 03/04 front MC line fit and the rear is too small. I tried to save money buying it in parts thinking that 99-04 parts were the same but they are not. I am also not too sure if I actually purchased a 99-04 Cobra MC as the bolt pattern was two studs on the MC none on the hydrobooster. I should start a thread on my findings.
 
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