Hydroboost question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**Johnl48** · 11-01-2022, 06:36 PM

Converting to a hydroboost system. Mounted on the firewall it angles down pretty dramatically. Is this normal for these or am I missing something. Everything in cab lines up with pedal

**jaros44sr** · 11-01-2022, 07:23 PM

mine doesn't angle down drastically, will take a picture tomorrow, Phillies are on shortly

Joyridin · 11-02-2022, 07:53 AM

Mine doesn't look like that at all. It points straight out and lines up with the pedal. That might play a bit of havoc with the master cylinder depending on which one you use.

**Ironangel** · 11-02-2022, 08:14 AM

Judging from the mounting plate it's supposed to angle down a bit. What did that unit come off of? Maybe take it off and rework that plate to make it flat...?

**jaros44sr** · 11-02-2022, 10:36 AM

16673995746948392596414014788329 by James Jaros, on Flickr

My is level, must be in the mount, if you need some machining done PM me, you're not far away

**jaros44sr** · 11-02-2022, 10:39 AM

16673998653796338265152678591138 by James Jaros, on Flickr

Sorry blurry pic

Bigdav160 · 11-02-2022, 12:36 PM

I'm using the factory bracket/linkage

It slopes down slightly not like the op's

6600DURAMAX · 11-07-2022, 10:51 AM

JAROS44SR - what bracket are you using that mounts the hydroboost to the firewall - looks to be billet...??

thanks

**1971Stepside** · 11-07-2022, 01:17 PM

I'm running the Astro van setup and it doesn't angle down. Not sure what setup you are running.

**Johnl48** · 11-07-2022, 03:37 PM

Quote:

Originally Posted by 6600DURAMAX

JAROS44SR - what bracket are you using that mounts the hydroboost to the firewall - looks to be billet...??

thanks

Not sure. Someone gave it to me. I guess I have to get a flat plate bit the nut is hard to get off. Don't have the socket

**jaros44sr** · 11-07-2022, 07:24 PM

Quote:

Originally Posted by 6600DURAMAX

JAROS44SR - what bracket are you using that mounts the hydroboost to the firewall - looks to be billet...??

thanks

Yes it is billet ,bought the whole system from Hydroboost, but it does look like you can build one, if you have Bridgeport

**dagnabbitt** · 11-07-2022, 10:26 PM

Mine

**jeffahart** · 11-07-2022, 10:34 PM

It looks like it's upside down. I think the install should be with the accumulator on the engine side; and master pointing slightly up.

j

**dagnabbitt** · 11-07-2022, 10:35 PM

Quote:

Originally Posted by jeffahart

It looks like it's upside down. I think the install should be with the accumulator on the engine side.

j

Bingo, I think

57taskforce · 11-08-2022, 12:24 AM

Quote:

Originally Posted by jeffahart

It looks like it's upside down. I think the install should be with the accumulator on the engine side; and master pointing slightly up.

j

This is definitely true. Here’s mine.

Joyridin · 11-08-2022, 10:03 AM

Quote:

Originally Posted by jeffahart

It looks like it's upside down. I think the install should be with the accumulator on the engine side; and master pointing slightly up.

j

Dang...never noticed that and I have my accumulator on the outside like his set-up to clear the valve cover!

MARKDTN · 11-08-2022, 10:15 AM

[QUOTE=jaros44sr;9139976]

16673995746948392596414014788329 by James Jaros, on Flickr
...

Not to hijack the thread, but what system are you using to go coil on plug TunedPort? I have several TPI systems and I love them. Might convert one of them to this.

**Thealien** · 11-08-2022, 11:22 AM

Quote:

Originally Posted by Joyridin

Dang...never noticed that and I have my accumulator on the outside like his set-up to clear the valve cover!

It will work either way. Certain mounting plates will dictate the orientation. Personally, I do not like the lines coming out the top so mine is mounted with the fittings on the bottom. I bought mine from Hydatech Braking with the mounting plate attached designed for bottom lines.

**jeffahart** · 11-08-2022, 12:05 PM

Quote:

Originally Posted by Thealien

It will work either way. Certain mounting plates will dictate the orientation. Personally, I do not like the lines coming out the top so mine is mounted with the fittings on the bottom. I bought mine from Hydatech Braking with the mounting plate attached designed for bottom lines.

Absolutely, with the caveat that if you are doing a GM swap and want to do minimal modifications it will need to be installed factory like...

Hydra tech seems like a good company, how to like their products?

j

**biketopia** · 11-08-2022, 12:08 PM

Quote:

Originally Posted by MARKDTN

Not to hijack the thread, but what system are you using to go coil on plug TunedPort? I have several TPI systems and I love them. Might convert one of them to this.

You could use an EFI Connection front cover and then you'd have to figure out engine management either with a 411PCM conversion or aftermarket ECU. On my SBC, I use a Holley Dual Sync distributor and a dominator ECU to control my throttle body and LS coils. Any of Holley's ECU's (Dominator, HP, Terminator X or X Max) are capable of running the TPI and a dual sync or the EFI Connection cover, would just need the right wire harness.

**jeffahart** · 11-08-2022, 12:21 PM

A tip for you real quick, as long as I'm at my desk and access to some images.

Just break off that wacky nut on the back of the mounting plate, replace it with a spanner nut. You can use a bearing lock washer too. Torque it down using a gland nut wrench(they're cheap) and some loctite.

j

Get rid of this

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Spanner nut

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Gland wrench

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Joyridin · 11-08-2022, 01:14 PM

Quote:

Originally Posted by Thealien

It will work either way. Certain mounting plates will dictate the orientation. Personally, I do not like the lines coming out the top so mine is mounted with the fittings on the bottom. I bought mine from Hydatech Braking with the mounting plate attached designed for bottom lines.

You just take a file and make a new slot in the mounting plate to flip the booster. Took about 10 minutes.

The benefit of having it mounted with lines coming out the top is you can usually use some of the factory lines depending on your application. Had I not flipped the unit, I could have used 2 factory lines.

**Thealien** · 11-08-2022, 01:31 PM

Quote:

Originally Posted by Joyridin

You just take a file and make a new slot in the mounting plate to flip the booster. Took about 10 minutes.

The benefit of having it mounted with lines coming out the top is you can usually use some of the factory lines depending on your application. Had I not flipped the unit, I could have used 2 factory lines.

Since it came from Hydratech braking with the mounting plate attached in the correct orientation there was no need to file. It installed the way I wanted with the lines down. This went in my 2-wheel drive LS3 blazer, or I would have gone with using something factory stock including lines. Mine are all AN

**Thealien** · 11-08-2022, 01:35 PM

Quote:

Originally Posted by jeffahart

Absolutely, with the caveat that if you are doing a GM swap and want to do minimal modifications it will need to be installed factory like...

Hydra tech seems like a good company, how to like their products?

j

Other than the long lead time I like the product and their communication. It has only been driven around the shop yard as it went right to the body shop after it was moving under its own power. It seemed to work in the parking lot? I am also running 14" front and 13" rear Wilwood brakes. It "should" stop well!

**Johnl48** · 11-08-2022, 04:23 PM

Quote:

Originally Posted by jeffahart

It looks like it's upside down. I think the install should be with the accumulator on the engine side; and master pointing slightly up.

j

Turning it around on the plate will not help. The mounting surface of the booster is flat. Plate is angled

11-01-2022, 06:36 PM	#1
Johnl48 Senior Member Join Date: Jun 2021 Location: West milford nj Posts: 326	Hydroboost question Converting to a hydroboost system. Mounted on the firewall it angles down pretty dramatically. Is this normal for these or am I missing something. Everything in cab lines up with pedal

11-01-2022, 07:23 PM	#2
jaros44sr Senior Member Join Date: May 2006 Location: Philadelphia, Pa. 19454 Posts: 9,766	Re: Hydroboost question mine doesn't angle down drastically, will take a picture tomorrow, Phillies are on shortly __________________ Semper Fi...Uncle Sam, you da man All parts offered to help are free, unless otherwise noted Dont try this stuff in my build thread, unless you have 55 years of mechanical OTJ training SAFETY FIRST AS usual, off topic They say your mind goes second, can't remember the first Jim

11-02-2022, 07:53 AM	#3
Joyridin Registered User Join Date: Sep 2020 Location: Cleveland, Ohio Posts: 558	Re: Hydroboost question Mine doesn't look like that at all. It points straight out and lines up with the pedal. That might play a bit of havoc with the master cylinder depending on which one you use.

11-02-2022, 08:14 AM	#4
Ironangel Senior Member Join Date: Feb 2010 Location: Falls City, Nebraska "100 Miles From Nowhere" Posts: 2,219	Re: Hydroboost question Judging from the mounting plate it's supposed to angle down a bit. What did that unit come off of? Maybe take it off and rework that plate to make it flat...? __________________ Michael of the clan Hill, "Two Seventy Two's" 71 1-ton Dually 350 4-Speed 71 C/50 Grain Truck, 350 Split-Axle 4-Speed 02 3/4 ton Express 14 Indian Chief Vintage 1952 Ford 8N, "Only Ford Allowed On The Property" "Be American, Buy American"

11-02-2022, 10:36 AM	#5
jaros44sr Senior Member Join Date: May 2006 Location: Philadelphia, Pa. 19454 Posts: 9,766	Re: Hydroboost question 16673995746948392596414014788329 by James Jaros, on Flickr My is level, must be in the mount, if you need some machining done PM me, you're not far away __________________ Semper Fi...Uncle Sam, you da man All parts offered to help are free, unless otherwise noted Dont try this stuff in my build thread, unless you have 55 years of mechanical OTJ training SAFETY FIRST AS usual, off topic They say your mind goes second, can't remember the first Jim

11-02-2022, 10:39 AM	#6
jaros44sr Senior Member Join Date: May 2006 Location: Philadelphia, Pa. 19454 Posts: 9,766	Re: Hydroboost question 16673998653796338265152678591138 by James Jaros, on Flickr Sorry blurry pic __________________ Semper Fi...Uncle Sam, you da man All parts offered to help are free, unless otherwise noted Dont try this stuff in my build thread, unless you have 55 years of mechanical OTJ training SAFETY FIRST AS usual, off topic They say your mind goes second, can't remember the first Jim

11-02-2022, 12:36 PM	#7
Bigdav160 Registered User Join Date: Apr 2011 Location: Klein Texas Posts: 3,852	Re: Hydroboost question I'm using the factory bracket/linkage It slopes down slightly not like the op's __________________ My Classics: '72 K20 Suburban + '65 Dodge Town Wagon '72 Corvette Roadster +'67 Corvette Roadster '73 Z-28 Camaro '63 Ford SWB Uni Pickup '50 Ford Coupe

11-07-2022, 10:51 AM	#8
6600DURAMAX Registered User Join Date: Nov 2000 Location: Wheatfield IN, USA Posts: 1,124	Re: Hydroboost question JAROS44SR - what bracket are you using that mounts the hydroboost to the firewall - looks to be billet...?? thanks __________________ 1972 K5 - LS3/408 (595Hp) -6L80e-One Tons with 4.56, 20'' Beadlocks with 37'' rubber, full TMI interior, JL Audio ..... 1971 CREWMAX Build.....at body shop for couple more years

11-07-2022, 01:17 PM	#9
1971Stepside Almost Satisfied Join Date: Mar 2002 Location: Springfield, MO Posts: 2,932	Re: Hydroboost question I'm running the Astro van setup and it doesn't angle down. Not sure what setup you are running. Attached Images __________________ 1971 C10 Stepside. LSx 6.0 with BTR Stage IV, Speed Engineering Headers, 4L80e transmission w/3200 Circle-D Stall. 3.73. Posi. Purchased this truck when I was 17. I started the rebuild (or take apart) in 1993. I have drug it around all over the country in pieces. Finally back on the road in 2021. "I can't complain, but sometimes I still do. Life's been good to me so far."

11-07-2022, 10:26 PM	#12
dagnabbitt Senior Member Join Date: Dec 2014 Location: Edmonton Alberta Posts: 1,453	Re: Hydroboost question Mine Attached Images __________________ DAVE Edmonton, Alberta 1959 Apache 1967 K20 1968 C20 1970 C10 1972 GMC 2500 1981 C10

11-07-2022, 10:34 PM	#13
jeffahart Senior Member Join Date: May 2012 Location: Scottsdale, AZ Posts: 1,907	Re: Hydroboost question It looks like it's upside down. I think the install should be with the accumulator on the engine side; and master pointing slightly up. j __________________ White K20

11-08-2022, 10:15 AM	#17
MARKDTN Registered User Join Date: Jan 2011 Location: Chattanooga, TN Posts: 2,165	Re: Hydroboost question [QUOTE=jaros44sr;9139976]16673995746948392596414014788329 by James Jaros, on Flickr ... Not to hijack the thread, but what system are you using to go coil on plug TunedPort? I have several TPI systems and I love them. Might convert one of them to this. __________________ '83 K20-TPI '73 C10 '79 C10-ex-diesel(SOLD) '07 Tahoe(Son driving) '14 Suburban-DD '71 C10-current project

11-08-2022, 12:21 PM	#21
jeffahart Senior Member Join Date: May 2012 Location: Scottsdale, AZ Posts: 1,907	Re: Hydroboost question A tip for you real quick, as long as I'm at my desk and access to some images. Just break off that wacky nut on the back of the mounting plate, replace it with a spanner nut. You can use a bearing lock washer too. Torque it down using a gland nut wrench(they're cheap) and some loctite. j Get rid of this Spanner nut Gland wrench __________________ White K20



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