Does hydraboost have any special power steering pump reqs? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

davepl · 12-20-2018, 01:44 PM

Subject line says it all - I remember installing one in my Pontiac years ago and being pretty underwhelmed with the level of assist. But I just used my stock pump as-is. I'd like to reuse it in a vehicle with enough cam that it doesn't have great assist. But it's got the original 1969 power steering pump.

Does a hydraboost need or benefit from any kind of up-powered pump?

Thanks!

KQQL IT · 12-20-2018, 04:52 PM

A 2nd return port in the pump.
Can T them but is problematic

**jeffahart** · 12-20-2018, 06:17 PM

I'm running a T, it does not seem to be a problem. I have thought about testing this mod to see if I notice any difference. I like the hydro setup. I would like to upgrade the pump though. Next time I have the fluid drained I will test this mod. I took the piston and spring from my old pump before I turned it in for core.

Anyhow, here's a quick read. And yes, can benefit.

http://www.gmtruckcentral.com/articl...rsteeringmods/

j

cleszkie · 12-20-2018, 06:21 PM

Stock pump with T fitting on my hydraboost setup. Going on 5 years now with no problems.

KQQL IT · 12-21-2018, 04:05 AM

Spirited driving...
High school kid stuff.
Would spit the return hose off the brake booster return and spray hot oil onto hot headers always a good time.

**AussieinNC** · 12-21-2018, 10:23 PM

Spitting the return hose off after spirited driving is always an installation using a small pulley on the power steering pump...turning the pump too fast...

The power steer pulley should be approx same size as damper drive pulley...one to one preferably.

**special-K** · 12-22-2018, 01:10 AM

Anyone ever have a power steering pump fail on them with hydro-boost? One reason not to love hydro-boost so much.

KQQL IT · 12-22-2018, 01:21 AM

Quote:

Originally Posted by AussieinNC

Spitting the return hose off after spirited driving is always an installation using a small pulley on the power steering pump...turning the pump too fast...

The power steer pulley should be approx same size as damper drive pulley...one to one preferably.

Was a tbi serpentine set up.
All stock pulleys and always a giant mess.

Put a vacuum booster on it, no more problems.

davepl · 12-22-2018, 12:27 PM

Quote:

Originally Posted by special-K

Anyone ever have a power steering pump fail on them with hydro-boost? One reason not to love hydro-boost so much.

No, never heard of that! Obviously, diesel trucks have been running something like them for a long time, which is the only reason I trust them...

57taskforce · 12-22-2018, 01:28 PM

I’ve got the stock pump with a brass t in my setup. No complaints. Gm used the t in the early hydraboost equipped trucks.

cleszkie · 12-24-2018, 02:11 PM

Good function and longevity is always contingent on proper installation/combination of parts. Regarding the concern over a failing steering pump - I agree with the OP in that these systems have been used on diesel trucks for a long time without a history of failures. Besides, if the pump fails and you lose all hydraulic assist the system doesn't leave you without brakes. You are left with what equates to manual brakes. Not great, but it will allow you to stop safely.

**jeffahart** · 12-24-2018, 03:15 PM

Quote:

Originally Posted by special-K

Anyone ever have a power steering pump fail on them with hydro-boost? One reason not to love hydro-boost so much.

The accumulator will give you two to four power assisted stops after engine shut down or pump failure causes loss of pressure.

j

57taskforce · 12-25-2018, 12:53 AM

Quote:

Originally Posted by jeffahart

The accumulator will give you two to four power assisted stops after engine shut down or pump failure causes loss of pressure.

j

I was going to leave that one alone my self but your exactly right. Even after those 2-4 stops it’s no different than a vacuum booster when the engine isn’t running.

toolboxchev · 12-26-2018, 12:50 AM

Quote:

Originally Posted by cleszkie

Good function and longevity is always contingent on proper installation/combination of parts. Regarding the concern over a failing steering pump - I agree with the OP in that these systems have been used on diesel trucks for a long time without a history of failures. Besides, if the pump fails and you lose all hydraulic assist the system doesn't leave you without brakes. You are left with what equates to manual brakes. Not great, but it will allow you to stop safely.

I would also agree with the original poster, I have a used 12 year, to me, truck and the only thing that is about to fail is that pump.

go figure, that and the transmission.

12-20-2018, 01:44 PM	#1
davepl Registered User Join Date: Aug 2006 Location: Redmond, WA Posts: 6,332	Does hydraboost have any special power steering pump reqs? Subject line says it all - I remember installing one in my Pontiac years ago and being pretty underwhelmed with the level of assist. But I just used my stock pump as-is. I'd like to reuse it in a vehicle with enough cam that it doesn't have great assist. But it's got the original 1969 power steering pump. Does a hydraboost need or benefit from any kind of up-powered pump? Thanks! __________________ 1970 GMC Sierra Grande Custom Camper - Built, not Bought 1969 Pontiac 2+2 427/390 4-speed Coupe 1969 Pontiac 2+2 427/390 4-speed Convertible

12-20-2018, 04:52 PM	#2
KQQL IT At the body shop. Join Date: Aug 2009 Location: Land of fruits and nuts. Posts: 5,260	Re: Does hydraboost have any special power steering pump reqs? A 2nd return port in the pump. Can T them but is problematic __________________ " That didnt make it any newer " " Dont antique the equipment "

12-20-2018, 06:17 PM	#3
jeffahart Senior Member Join Date: May 2012 Location: Scottsdale, AZ Posts: 1,907	Re: Does hydraboost have any special power steering pump reqs? I'm running a T, it does not seem to be a problem. I have thought about testing this mod to see if I notice any difference. I like the hydro setup. I would like to upgrade the pump though. Next time I have the fluid drained I will test this mod. I took the piston and spring from my old pump before I turned it in for core. Anyhow, here's a quick read. And yes, can benefit. http://www.gmtruckcentral.com/articl...rsteeringmods/ j __________________ White K20

12-20-2018, 06:21 PM	#4
cleszkie Registered User Join Date: Feb 2003 Location: Santa Ana, CA Posts: 2,191	Re: Does hydraboost have any special power steering pump reqs? Stock pump with T fitting on my hydraboost setup. Going on 5 years now with no problems.

12-21-2018, 04:05 AM	#5
KQQL IT At the body shop. Join Date: Aug 2009 Location: Land of fruits and nuts. Posts: 5,260	Re: Does hydraboost have any special power steering pump reqs? Spirited driving... High school kid stuff. Would spit the return hose off the brake booster return and spray hot oil onto hot headers always a good time. __________________ " That didnt make it any newer " " Dont antique the equipment "

12-21-2018, 10:23 PM	#6
AussieinNC Moderator Join Date: Jun 2017 Location: Cherryville, NC Posts: 2,204	Re: Does hydraboost have any special power steering pump reqs? Spitting the return hose off after spirited driving is always an installation using a small pulley on the power steering pump...turning the pump too fast... The power steer pulley should be approx same size as damper drive pulley...one to one preferably. __________________ Family and country before all others... 2006 Chevy Silverado (Daily Driver) 2012 Chevy Equinox

12-22-2018, 01:10 AM	#7
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,851	Re: Does hydraboost have any special power steering pump reqs? Anyone ever have a power steering pump fail on them with hydro-boost? One reason not to love hydro-boost so much. __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

12-22-2018, 01:28 PM	#10
57taskforce All about them K’s Join Date: Jun 2014 Location: Land of Entrapment Posts: 6,504	Re: Does hydraboost have any special power steering pump reqs? I’ve got the stock pump with a brass t in my setup. No complaints. Gm used the t in the early hydraboost equipped trucks. __________________ Tyler '57 3100 http://67-72chevytrucks.com/vboard/s...d.php?t=813888 '72 K20 Cheyenne: 5” lift, 35’s, front dana 60 blah blah blah… http://67-72chevytrucks.com/vboard/s...d.php?t=662879 ‘69 K10 SWB: 4” lift 33”s… in a million pieces http://67-72chevytrucks.com/vboard/s...d.php?t=805206 '98 Silverado LT K2500HD ECLB Vortec 454/4l80E: 6" lift 35x12.5x20’s

12-24-2018, 02:11 PM	#11
cleszkie Registered User Join Date: Feb 2003 Location: Santa Ana, CA Posts: 2,191	Re: Does hydraboost have any special power steering pump reqs? Good function and longevity is always contingent on proper installation/combination of parts. Regarding the concern over a failing steering pump - I agree with the OP in that these systems have been used on diesel trucks for a long time without a history of failures. Besides, if the pump fails and you lose all hydraulic assist the system doesn't leave you without brakes. You are left with what equates to manual brakes. Not great, but it will allow you to stop safely.



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