hydroboost/electric vac pump - The 1947 - Present Chevrolet & GMC Truck Message Board Network

darksaga · 08-03-2003, 12:54 PM

the engine in my 68 only makes 12" of vac, this makes brakeing a pain.
I have been thinking about hydroboost but dont know how hard it would be to install, I can get a unit from a 85 deisel k5.

has this been done and how hard was it?

I know this has been gone over before but search is down

also looking at an electric pump this one is the same as the mp one

http://www.gastmfg.com/pdf/ambulance.pdf

http://www.mpbrakes.com/vacuumpump.htm

I could just pick up a switch or a valve and be done with it

I found out about the electric pump at www.chevelles.com

slam33 · 08-03-2003, 12:59 PM

One of the truck mags just did a thing on hydo, looks like I'm going to go that route when I do the 4 wheel disc

darksaga · 08-03-2003, 01:06 PM

was the swap bolt on? I am opting more and more to the pump because I just replaced the entire brake system 8 months ago

jays68yak · 08-03-2003, 01:07 PM

http://www.hydroboost.com/

My roommates truck has hydroboost on it and let me tell you Im going to do everything in my power to put one on each of my vechices. It gves you a much better pedal feel and it stops a lot easier. Even in a BIG truck.

darksaga · 08-03-2003, 01:25 PM

I know about hydroboost but the issue for me is that they don't have a kit for 67-72 trucks, the have a universal kit but im leary of that because of the odd way the booster hooks of to the pedal in out trucks, and because its a 4x4 a vac pump will give me assist in the event of a stall

darksaga · 08-04-2003, 03:44 PM

I emailed hydroboost.com
and they sent this back

Quote:

Hi Andrew, I have some good news for you! Though we have not listed it on our website yet, we have indeed produced a few systems for these types of trucks. We completely do away with the entire strange cantilever setup and mount the assist unit directly to the firewall

,

Hydroboost here I come

(brake skid)

now I will also need a new power steering pump would it be worthwhile to go with an agr pump or could I just rebuilded the one I have?

darksaga · 08-04-2003, 03:49 PM

pics they sent

darksaga · 08-04-2003, 03:50 PM

one more

GreenMystChevy · 08-20-2003, 05:13 PM

Wow, I was reading through these threads and this looks like a great system to have. Sure wish I had that kind of cash though because I am needing to upgrade to power brakes. Their systems for some of their cars are real expensive. Does anyone know what the price might be on that one for our year of trucks?

08-03-2003, 12:54 PM	#1
darksaga Registered User Join Date: Nov 2002 Location: santa cruz cali Posts: 118	hydroboost/electric vac pump the engine in my 68 only makes 12" of vac, this makes brakeing a pain. I have been thinking about hydroboost but dont know how hard it would be to install, I can get a unit from a 85 deisel k5. has this been done and how hard was it? I know this has been gone over before but search is down also looking at an electric pump this one is the same as the mp one http://www.gastmfg.com/pdf/ambulance.pdf http://www.mpbrakes.com/vacuumpump.htm I could just pick up a switch or a valve and be done with it I found out about the electric pump at www.chevelles.com __________________ 1968 gmc 3/4 4x4 longbed. built 469 700r4 (needs a th400 REAL SOON!), 14bolt ff rear 73 3/4 dana 44 1970 chevelle all wheel disc, tubular rear control arms tall spindle swap up front matching #'s 350 work in Progress

08-03-2003, 12:59 PM	#2
slam33 Registered User Join Date: Aug 2001 Location: Long Beach, Ca Posts: 1,432	One of the truck mags just did a thing on hydo, looks like I'm going to go that route when I do the 4 wheel disc __________________ 71 LWB 350/350still working on it but it's going tp be sweet. www.geocities.com/stevemau/slam33page.html " TARGET=_blank>http://www.geocities.com/stevemau/slam33page.html?1004806705410 </A>

08-03-2003, 01:06 PM	#3
darksaga Registered User Join Date: Nov 2002 Location: santa cruz cali Posts: 118	was the swap bolt on? I am opting more and more to the pump because I just replaced the entire brake system 8 months ago __________________ 1968 gmc 3/4 4x4 longbed. built 469 700r4 (needs a th400 REAL SOON!), 14bolt ff rear 73 3/4 dana 44 1970 chevelle all wheel disc, tubular rear control arms tall spindle swap up front matching #'s 350 work in Progress

08-03-2003, 01:07 PM	#4
jays68yak Registered User Join Date: Oct 2002 Location: Gilroy, CA Posts: 1,454	http://www.hydroboost.com/ My roommates truck has hydroboost on it and let me tell you Im going to do everything in my power to put one on each of my vechices. It gves you a much better pedal feel and it stops a lot easier. Even in a BIG truck. __________________ 1969 Chevy Project SWB Fleet, 20s, 5.3, t56, in the weeds. 1970 Chevy Truck cab on a 1979 Jimmy frame-8.1 liter 496 bbc/sm465/np203-jeds doubler-np205/d60/14bff Welded/42 tsls on recentered H1s 1998 Chevy Crew Cab K3500 SAS'd with hpd60, links and swayaway coilovers. 8.1l vortec DD/towrig "I like long walks, especially when they are taken by people who annoy me. "

08-03-2003, 01:25 PM	#5
darksaga Registered User Join Date: Nov 2002 Location: santa cruz cali Posts: 118	I know about hydroboost but the issue for me is that they don't have a kit for 67-72 trucks, the have a universal kit but im leary of that because of the odd way the booster hooks of to the pedal in out trucks, and because its a 4x4 a vac pump will give me assist in the event of a stall __________________ 1968 gmc 3/4 4x4 longbed. built 469 700r4 (needs a th400 REAL SOON!), 14bolt ff rear 73 3/4 dana 44 1970 chevelle all wheel disc, tubular rear control arms tall spindle swap up front matching #'s 350 work in Progress

08-04-2003, 03:49 PM	#7
darksaga Registered User Join Date: Nov 2002 Location: santa cruz cali Posts: 118	pics they sent Attached Images __________________ 1968 gmc 3/4 4x4 longbed. built 469 700r4 (needs a th400 REAL SOON!), 14bolt ff rear 73 3/4 dana 44 1970 chevelle all wheel disc, tubular rear control arms tall spindle swap up front matching #'s 350 work in Progress

08-04-2003, 03:50 PM	#8
darksaga Registered User Join Date: Nov 2002 Location: santa cruz cali Posts: 118	one more Attached Images __________________ 1968 gmc 3/4 4x4 longbed. built 469 700r4 (needs a th400 REAL SOON!), 14bolt ff rear 73 3/4 dana 44 1970 chevelle all wheel disc, tubular rear control arms tall spindle swap up front matching #'s 350 work in Progress

08-20-2003, 05:13 PM	#9
GreenMystChevy Registered User Join Date: Jan 2002 Location: Woodinville, WA Posts: 513	Wow, I was reading through these threads and this looks like a great system to have. Sure wish I had that kind of cash though because I am needing to upgrade to power brakes. Their systems for some of their cars are real expensive. Does anyone know what the price might be on that one for our year of trucks? __________________ Jeremy '71 C-10 '72 GMC K2500 '72 Nova (Dad's) '70 Chevelle SS '55 Sedan Delivery Attempting to build up this here 4x4...make her real tall and purty...well, maybe just tall Last edited by GreenMystChevy; 08-20-2003 at 05:17 PM.

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