Hydroboost Mounting Plates

[Dragun12]

oh ok so your kit just makes less of a hassle put on so say a disc/disc hydroboost on very awsome and the price well i have not found anything with that good of price. because i cant remeber what year of hydroboost. but i know the hydroboost we put on are 66 is a drum/disc hydroboost and it just bolted right on the only thing we had to do was alittle modding to the push rod i dont have any pictures oh how my dad and me modded the pushrod nor do i remember but i do have the pics of it bolted up.

[Captainfab]

I have never seen a hydroboost with a factory bracket like that. What is the application for it? If that is what you have then you don't need either of my brackets. Just like there are some factory hydroboost brackets that bolt directly to my booster brackets. This hydroboost mounting plate is not need in those instances. My brackets are designed to be used with brake components that are readily available at most wrecking yards.

[AusTx68]

Hey Captain, I picked up a refurbished 93' Chevy hydroboost. The plate was removed but the nut is in place. I was interested in picking up your plate but had a question. If I just go with the plate and mount it directly to the firewall do I still need to lengthen the rod? I know mounting it to the firewall requires opening the hole and drilling new holes for the plate.

[Captainfab]

I can't say for sure if you will have to lengthen it or not. I would say more than likely you will.

[AusTx68]

Originally Posted by Captainfab

I can't say for sure if you will have to lengthen it or not. I would say more than likely you will.

How do I go about purchasing the plate? I will skip the bracket so I can keep it close to the firewall. Can you confirm the correct fittings for the hydroboost. I believe they are o-ring fittings in sizes M18-1.5 & M16-1.5

Last year I converted my existing PS lines to 6-AN TFE with flare fitting adapters. I figure all I need now is two hoses and two 0-ring to -6AN fittings.

[Captainfab]

To make a purchase, you just need to make the payment. I will send you a PM with the details.

As for the fittings, I don't recal for sure......that sounds about right. There is a seller on ebay that sells all 3 hydroboost fittings to adapt to -6AN for about $24.00.

Originally Posted by AusTx68

How do I go about purchasing the plate? I will skip the bracket so I can keep it close to the firewall. Can you confirm the correct fittings for the hydroboost. I believe they are o-ring fittings in sizes M18-1.5 & M16-1.5

Last year I converted my existing PS lines to 6-AN TFE with flare fitting adapters. I figure all I need now is two hoses and two 0-ring to -6AN fittings.

[mcmlxix]

The company is calles Sweet Performance Products ....

From the eBay listing

"Hydroboost -6AN fitting kit"

This auction is for one compete set of 3 fittings.

This kit includes the following fittings, -6 to M16-1.5 bump tube, -6 to M18-1.5 bump tube and -6 to 5/16-24. This will allow the use of -6 AN stainless steel braided hoses including the low pressure bleed port. The fittings are steel with an attractive zink plating.

NOTE:: The pump is not included. This sale is for the fittings only.

Check our store for power steering hose kits.

We also build all kinds of custom hoses including DOT stainless steel brake hoses.

These parts were made in house by an American.

[El Campo]

I am going to buy those same fittings. One thing that I do not know yet because I have not gotten them yet is about the diameter of the hole in the 5/16 fitting. This has to be the same diameter as the stock nipple had or it can lead to instability in the system from what I have read from people who have done a ton of these. It probably already is but would be something worth checking out. Otherwise it is a good idea to drill it out.

[AusTx68]

Originally Posted by El Campo

I am going to buy those same fittings. One thing that I do not know yet because I have not gotten them yet is about the diameter of the hole in the 5/16 fitting. This has to be the same diameter as the stock nipple had or it can lead to instability in the system from what I have read from people who have done a ton of these. It probably already is but would be something worth checking out. Otherwise it is a good idea to drill it out.

Interesting point. At a minimum, I would think the diameter matches the side being adapted (5/16). Any smaller would restrict flow. I'm betting some smart engineer designed them to support the proper flow.

I ordered the Ebay fittings this morning. I still need the TFE hose and 90 degree 6-AN fittings. I plan to flip the hydroboost so the fittings are on the bottom. I think that would make for a cleaner install. Does anyone know if flipping it will cause a problem?

[El Campo]

Nope will not cause any problems. A lot of people flip them. Heck some of the aftermarket companies like for Corvettes ONLY have them upside down. I think that I am going to flip mine too

[Captainfab]

Thanks for posting more details mcmlxix

[AusTx68]

This morning I mounted the hydroboost using John's booster bracket and plate. I still need to reroute the high pressure line but you get an idea of how it looks. As you can see I flipped it so the fittings are on the bottom. The stainless TFE hose and ends came from Summit. I have around $300 in the setup (not including the master cylinder).

I took a test drive around the block. From the time I stepped on the pedal I could feel the difference. The brakes feel like my newer cars. It will certainly takes some getting used to.

Thanks John for an excellent product and super speedy shipping.

[RockTonka]

That looks good!

[Captainfab]

I agree, that looks real good

Thanks for posting pics of your installation Joseph

[Tmwoodall]

Originally Posted by AusTx68

This morning I mounted the hydroboost using John's booster bracket and plate. I still need to reroute the high pressure line but you get an idea of how it looks. As you can see I flipped it so the fittings are on the bottom. The stainless TFE hose and ends came from Summit. I have around $300 in the setup (not including the master cylinder).

I took a test drive around the block. From the time I stepped on the pedal I could feel the difference. The brakes feel like my newer cars. It will certainly takes some getting used to.

Thanks John for an excellent product and super speedy shipping.

I've got to ask, how did you piece this together for ~300?

What I am seeing:

Booster ~150
Cptn Brackets & Plate ~70
Lines ~220

Where did you save? I am planning on doing exactly as you have except painted semi glass black.

[AusTx68]

Originally Posted by Tmwoodall

I've got to ask, how did you piece this together for ~300?

What I am seeing:

Booster ~150
Cptn Brackets & Plate ~70
Lines ~220

Where did you save? I am planning on doing exactly as you have except painted semi glass black.

Refurb Booster on Ebay ~ $120 w/shipping
Cptn Brackets & Plate ~ $70
Lines ~ $110 (includes four -6 AN TFE fittings and 6ft of TFE hose)
Hydroboost Fittings on Ebay ~$28 w/ shipping

That comes out to $328. There were other nominal cost such as a barb T fitting from Home Depot and hose clamps. To save costs I only used the teflon for the high pressure lines. The return line is regular stainless hose. I had an extra piece left over from an earlier project. That stuff is pretty cheap (6ft @ $25). You could save there by using 3/8" rubber hose. In the end I had leftover fittings. That's because I converted my PS lines to TFE last year and the high pressure line off the PS pump was long enough to reach the booster. So in all I have closer to $350 invested. That includes the fittings below.

[Pzary3233]

I wonder if there is a huge difference between them and the ones on the newer (99+) Tahoes and Silverados? Those are much easier for me to find.

[Tmwoodall]

Originally Posted by Pzary3233

I wonder if there is a huge difference between them and the ones on the newer (99+) Tahoes and Silverados? Those are much easier for me to find.

IIRC from reading other Captnfab threads, the mounting hole spacing differs in later years, I could be wrong.

[Pzary3233]

I was referring to the later 99+ brakes, but I have given that option some thought as well. I work in a late model salvage yard so those parts are easier to come by then the 98 back parts. I wonder if the 99-07 brakes fit on the 98 back spindles like the 07+ brakes work on the 99-07 spindles....? May have to mock that up but that's another thread all together.

[Tmwoodall]

That was insanely fast. I paid what, Thursday? Arrived today.

[Captainfab]

I always try and ship by the next day, and USPS Priority Mail is pretty fast.

[shearjs]

Captain,

Received my adapters yesterday. They look great! Thanks again.

[Tmwoodall]

I have to say, if anyone is on the fence, jump on over. John is fantastic. We had a screwup, due to my lack of communication on what year truck I'm building. He had new brackets out to me in less than 72 hours. Even though it was clearly my fault, John being the great guy he is assumed some of the blame and we worked out getting the wrong brackets back and getting powdered ones (originally purchased bare) to me (again VERY quickly) since I had shot my last round of epoxy already. I couldn't have asked for a better experience, short of being clear and getting the right stuff out the first time.

I haven't yet mounted them up, but they look great. I'll post pics, and will have a separate writeup on everything for folks interested.

It took a bit of work and help from other members to get all the right stuff in play to get the total solution in my shop. For I believe a bit under $400 I got everything including plates, hydro unit, fancy-schmancy stainless lines and fittings etc. Will send the link to John once writeup is done for sharing with others as he sees best fit.

[Captainfab]

Thanks for the kind words guys

[shearjs]

John,

The hydroboost adapter and the booster bracket worked out perfectly. Got them installed this wkend. Thanks again!