hydroboost... - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Storm Chaser · 09-25-2009, 12:27 AM

I have the hydroboost setup left over from my abandoned 88-98 project. Can it be used on my 88 R20? What do I have to do to get it mated up to the firewall?

Storm Chaser · 09-27-2009, 03:24 AM

Anyone?

Storm Chaser · 09-29-2009, 10:34 PM

OK, let's try it this way... is the hydroboost unit the same between the two bodystyles, not counting the bracket? In other words, could I remove the 88-98 bracket and find/fab one from a pre-88? Surely someone's messed with hydroboost.

Has there been a mass exodus away from the 73-87 portion of this site? Seems alot of old regulars are pretty quiet...

Number21 · 09-29-2009, 10:40 PM

Hmmm...I could probably take a pic tomarrow of the hydroboost in my '79 if that would help. Otherwise I don't know much about the system...

Storm Chaser · 09-29-2009, 11:55 PM

That would help me out a bit, if you don't mind. Thanks!

Cherub · 09-30-2009, 09:22 AM

1 tons came with hydroboost. With a little fab you can adapt it.

Number21 · 10-01-2009, 03:59 AM

Here's some pics of my Hydroboost. It seems to be mounted on some kind of bracket which is then attached to the firewall...

1985-GMC · 10-01-2009, 07:10 PM

Quote:

Originally Posted by Cherub

1 tons came with hydroboost. With a little fab you can adapt it.

Not all 1 tons came with hydroboost, If it came with a small block it had the regular vacuum booster. All big block trucks came with hydroboost because they don't make enough vacuum.

60ratrod · 10-01-2009, 07:46 PM

not all small block equipped square bodied 1 tons had vacuum units. i've seen some sbc 1 tons that had hydroboost setups

Number21 · 10-01-2009, 07:53 PM

Quote:

Originally Posted by 1985-GMC

Not all 1 tons came with hydroboost, If it came with a small block it had the regular vacuum booster. All big block trucks came with hydroboost because they don't make enough vacuum.

There's a couple pictures of a small block 1 ton '79 above with the factory Hydroboost.

I also used to have one with a big block, which had a vacuum booster.

mbgmike · 10-01-2009, 07:55 PM

Quote:

Originally Posted by Storm Chaser

OK, let's try it this way... is the hydroboost unit the same between the two bodystyles, not counting the bracket? In other words, could I remove the 88-98 bracket and find/fab one from a pre-88? Surely someone's messed with hydroboost.

Has there been a mass exodus away from the 73-87 portion of this site? Seems alot of old regulars are pretty quiet...

I don't know why you could not. They have put Hydro-boost systems in all kinds of cars and trucks. A buddy of mine has one in his 38 chevy car. Can you not use the bracket you have.

1985-GMC · 10-01-2009, 08:39 PM

Quote:

Originally Posted by Number21

There's a couple pictures of a small block 1 ton '79 above with the factory Hydroboost.

I also used to have one with a big block, which had a vacuum booster.

Thanks for correcting me, what i meant was small blocks came with hydro or vacuum booster. Did your truck come with a BB and vacuum booster from the factory?

Number21 · 10-01-2009, 08:56 PM

Quote:

Originally Posted by 1985-GMC

Did your truck come with a BB and vacuum booster from the factory?

As far as I know it was factory, in a big 3/4 ton camper special.

Storm Chaser · 10-01-2009, 10:37 PM

Quote:

Can you not use the bracket you have.

I don't know yet... the hydroboost unit is still on my 88-98 project that I'm taking apart, and it's at a different location than the truck I am working on. I was just wondering if maybe someone knew from experience. The two things I am concerned about is a)would it have the same "bolt pattern" as the firewall in my truck, and b)would the pedal rod be the correct length.

boatpuller · 10-01-2009, 10:39 PM

sorry check below

boatpuller · 10-01-2009, 10:41 PM

here's a couple of old ones i had on file.maybe you can see something ?

Storm Chaser · 10-02-2009, 12:02 AM

WOW, can I just have that entire engine compartment? As far as I can remember, the brackets posted in this thread seem to look like what I have.

Do you think (assuming the bolt patterns are the same) if I measured from the hole in the brake pedal to the firewall and add that to the distance between the firewall and the face of the hydroboost unit... if that summed distance is the same or pretty darned close to the same on my truck... it would be safe to assume the rod is the correct length?

09-25-2009, 12:27 AM	#1
Storm Chaser Registered User Join Date: Oct 2006 Location: In the Indiana Corn Posts: 449	hydroboost... I have the hydroboost setup left over from my abandoned 88-98 project. Can it be used on my 88 R20? What do I have to do to get it mated up to the firewall? __________________ 1988 R2500 Crew Cab Immediate plans- get it running! Future plans- Rear disc swap & Hydroboost Dually conversion with shackle flip-n-switch 4x4 conversion with 52" springs Maybe some new body panels Who needs a car when they make crew cab trucks?

09-27-2009, 03:24 AM	#2
Storm Chaser Registered User Join Date: Oct 2006 Location: In the Indiana Corn Posts: 449	Re: hydroboost... Anyone? __________________ 1988 R2500 Crew Cab Immediate plans- get it running! Future plans- Rear disc swap & Hydroboost Dually conversion with shackle flip-n-switch 4x4 conversion with 52" springs Maybe some new body panels Who needs a car when they make crew cab trucks?

09-29-2009, 10:34 PM	#3
Storm Chaser Registered User Join Date: Oct 2006 Location: In the Indiana Corn Posts: 449	Re: hydroboost... OK, let's try it this way... is the hydroboost unit the same between the two bodystyles, not counting the bracket? In other words, could I remove the 88-98 bracket and find/fab one from a pre-88? Surely someone's messed with hydroboost. Has there been a mass exodus away from the 73-87 portion of this site? Seems alot of old regulars are pretty quiet... __________________ 1988 R2500 Crew Cab Immediate plans- get it running! Future plans- Rear disc swap & Hydroboost Dually conversion with shackle flip-n-switch 4x4 conversion with 52" springs Maybe some new body panels Who needs a car when they make crew cab trucks?

09-29-2009, 10:40 PM	#4
Number21 Registered User Join Date: Aug 2009 Location: Oregon Posts: 611	Re: hydroboost... Hmmm...I could probably take a pic tomarrow of the hydroboost in my '79 if that would help. Otherwise I don't know much about the system...

09-29-2009, 11:55 PM	#5
Storm Chaser Registered User Join Date: Oct 2006 Location: In the Indiana Corn Posts: 449	Re: hydroboost... That would help me out a bit, if you don't mind. Thanks! __________________ 1988 R2500 Crew Cab Immediate plans- get it running! Future plans- Rear disc swap & Hydroboost Dually conversion with shackle flip-n-switch 4x4 conversion with 52" springs Maybe some new body panels Who needs a car when they make crew cab trucks?

09-30-2009, 09:22 AM	#6
Cherub Registered User Join Date: Feb 2008 Location: Houston Posts: 970	Re: hydroboost... 1 tons came with hydroboost. With a little fab you can adapt it. __________________ 2014 LTZ Z71 Silverado 82 C15 LQ4/4L80E Conversion 78 Suburban build (SOLD) 83 4x4 Suburban(SOLD) 82 C15 (my first truck)

10-01-2009, 03:59 AM	#7
Number21 Registered User Join Date: Aug 2009 Location: Oregon Posts: 611	Re: hydroboost... Here's some pics of my Hydroboost. It seems to be mounted on some kind of bracket which is then attached to the firewall...

10-01-2009, 07:46 PM	#9
60ratrod yes, i do Join Date: Jun 2007 Location: Spokane, wa Posts: 2,734	Re: hydroboost... not all small block equipped square bodied 1 tons had vacuum units. i've seen some sbc 1 tons that had hydroboost setups __________________ ERROR 404....... SNAPPY COMEBACK NOT FOUND _______________________________________________________________________________________________ -60 Chevy C10, dead 350/good th350 combo, sitting on a 76 c10 blazer frame, built from 11 different vehicles "the abomination" -07 gmt900 silverado 1500 lt xcab z71, granite blue -81 suzuki gs650g "shelah"- current project -81 kz1000m1 csr "sarge" -next project (just beautification) -07 kawasaki vulcan classic vn900

10-01-2009, 10:39 PM	#15
boatpuller Registered User Join Date: Sep 2005 Location: Sun City West, Az Posts: 3,822	Re: hydroboost... sorry check below Last edited by boatpuller; 10-01-2009 at 10:42 PM.

10-01-2009, 10:41 PM	#16
boatpuller Registered User Join Date: Sep 2005 Location: Sun City West, Az Posts: 3,822	Re: hydroboost... here's a couple of old ones i had on file.maybe you can see something ? Attached Images __________________ " Never look up a dead dogs butt."

10-02-2009, 12:02 AM	#17
Storm Chaser Registered User Join Date: Oct 2006 Location: In the Indiana Corn Posts: 449	Re: hydroboost... WOW, can I just have that entire engine compartment? As far as I can remember, the brackets posted in this thread seem to look like what I have. Do you think (assuming the bolt patterns are the same) if I measured from the hole in the brake pedal to the firewall and add that to the distance between the firewall and the face of the hydroboost unit... if that summed distance is the same or pretty darned close to the same on my truck... it would be safe to assume the rod is the correct length? __________________ 1988 R2500 Crew Cab Immediate plans- get it running! Future plans- Rear disc swap & Hydroboost Dually conversion with shackle flip-n-switch 4x4 conversion with 52" springs Maybe some new body panels Who needs a car when they make crew cab trucks?



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