Hydroboost Conversion Done

[FrankTheTank]

what make and model do these pumps come in?

 

[Got4wd]

This is a cardone pump. 20-6244. Now that I have this in I am going to try another style just for fun


It's in and it's an amazing pump. Brake on, running hydroboost, I can turn the wheel with 1 finger, I'm running 35" tires also. On to the pics.

 

[Overkill]

Looks good and yes I am just Overkill on this forum.

 

[FrankTheTank]

want to sell me that pump since u want to try something else??? haha..... im serious....

 

[Got4wd]

want to sell me that pump since u want to try something else??? haha..... im serious....

Possibly, let me play with my new design and if I come up with a kit maybe end up selling them.

 

[FrankTheTank]

Let me know, im deffently down.

 

[jschildm]

Possibly, let me play with my new design and if I come up with a kit maybe end up selling them.

Mines out right now, you going to have that done by Monday? Haha.

 

[glovemeister]

Any updates on what pumps to try since the Sag pump is obsolete?

 

[Got4wd]

Any updates on what pumps to try since the Sag pump is obsolete?

I have a few pumps here at the house. I just need to order up this adapter to see if it's going to work with 7.3 PS bracket. Just haven't wanted to send the money to order one up yet.

I did have to change out the power steering high pressure line. The stock Ford one is too restrictive. I built my own using a gm pump side and ford hydro side. Flow is double what it was before. Here is a pic of the factory ford hydroboost side. Outlet is only about 1/8 inch. That is the bottleneck in the system.

Here is what I went to

Finished hose

I do feel that if you do the hydroboost conversion, you should drill out the pump side fitting. Here is one I sampled with. I was able to open it up to about 17/64th. Over double the size of the original hole. Superduty owners would benefit from this too.

 

[glovemeister]

Wow bud. You sure do great work! Thanks for the information.

 

[FrankTheTank]

How did u make your custom line? Buy two hoses and have a hose shop piece them together?

 

[Got4wd]

How did u make your custom line? Buy two hoses and have a hose shop piece them together?

I had a extra hydroboost ford side and hose from a 06 Chevy duramax from the junk yard. Just the metal part. This hose place in town braised the ends onto the metal shells and then crimped the hose onto the hose after I got the length. Problem is I couldn't find a hose that has the 7/16 ford hydroboost fitting to the 16 mm pump side. Ford only used 7/16 on the obs hydroboosts. All the new stuff is 18mm. You could also go custom hose, stainless and get the fittings that way. This way was only 40 bucks and it's exactly what I wanted. Now if I can only find time to test the psc or lee mfg horseshoe bracket. My sons travel baseball takes up alot of time. Lol

 

[FrankTheTank]

Gotcha there! That was how I was gonna make my line when I swapped steering boxes. Great mods think alike

 

[Got4wd]

Thought I would add a little "new" information into this thread, I got a hydroboost unit from Tom S and sent it off to be ported. I wanted to see how much better a ported unit was. I can tell you there is a few things that are better, pedal feel is greatly improved. Meaning it is much easier to push the pedal down and still have excellent brakes. I would say it's between a stock vacuum system and a converted hydroboost. I feel having it ported was worth it just having the better pedal. Also to all "future" hydroboost installers, I would advise to order part number 6u9z-2005-a. This is the part number I got from Tom S. It is a different unit than a motorcraft brb-37. The spacing where the master cylinder mounts is narrower than the motorcraft one. So when you mount up your stock master, you will not have to notch it to make it fit. Also the newer super duty masters will bolt up just fine too. Super duty masters are a 1 3/8 bore and set up for rear discs. I'm having to order a new master for mine since I had to notch my brand new master to make it fit Toms hydroboost. I will post how that works out next week.

Here is the ford number and the f super duty master. You can see it clearly doesn't fit.

 

[Tom S]

I guess I am not clear, so where you able to get your truck up and running? I am sorry that there was a difference in those Hydroboost units. I sure never anticipated that. I did come across a piece online that they have different "ratios" so that might also play into your pedal feel.

 

[Got4wd]

I guess I am not clear, so where you able to get your truck up and running? I am sorry that there was a difference in those Hydroboost units. I sure never anticipated that. I did come across a piece online that they have different "ratios" so that might also play into your pedal feel.

Yes I had to notch quite a bit of the master. But it's in. I called the company that ported it and they said everything is the same internally except the master spacing. Where did you read the ratio is different?

 

[Tom S]

Let me see if I can find that again. I got it when I was playing with that part number. I also just came across some thing on here about the rear port on the master cylinder being different from the OBS to the SD. I will post back in a minute or two.

Tom

 

[Tom S]

https://www.fleet.ford.com/truckbbas/non-html/2006/vs_pdf/fseriessd_06mhc.pdf

That was where I was remembering the ratio thing from.

 

[Tom S]

The first conversion I ever did was about 12 years ago and with a 99 up booster.
To use a 99 up booster on. 97 down you need to first cut 1.5" off the pushrod. The mount/ flange to bolt it up to firewall needs to be fabricated. You need to use a 99 up ms, but need to add a portioning valve to rear line. I always just put an adjustable unit on. The front oem brake line connects, it's the rear line that is different.
Nice thing about 99-04 ms is that the bore is larger than the f superduty, it's 1 3/8 vs the old being 1 5/16.
If you used a 99 up booster, you could use a 05 up ms and have even bigger bore. In 05 they upped it to 1 1/2. Anything helps.

And this was the other thing on the rear port.

 

[Got4wd]

And this was the other thing on the rear port.

Rear port might be different but it's only because you need the valving for drum brakes. This threads out to change to disc. Sd only came with rear disc so the rear valving isn't needed