Let's talk about Hydroboost Brakes
- Thread starter scrapdaddy
- Start date
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!!! This ain't the end of this 
!! No matter how much of a Headache it gives me 
Hey hey 
!
It’s been a couple days since we’ve hashed out on this. One piece of the Hydroboost puzzle that hasn’t seen much coverage is the steering pump.
I picked up a complete setup from a salvage yard that included the factory teardrop Saginaw P-style pump with two return ports. As some of you might know, the factory PS pump placement on a “garden variety” LM7 LS engine makes for a tight fit on the frame rail, especially in conjunction with a retrofitted PS box like a 60/80 series or Scout. There’s another style of steering pump and that’s the Saginaw Type II, which is a more compact unit used with a remote reservoir. What I’m not sure about yet is if the mounting bolt patterns are the same.(?)
On the PSC website you can get either for a hydroboost application, but for some reason, they give you a list of choices for pulleys in the Type II (ranging in diameters from 6” down to 4.5”), and no pulley choices for the P-Pump. I can think of a couple advantages of having a smaller than OEM pulley -
a. More clearance between the frame for fitting into an FJ55
b. More pressure at idle with the increased pulley speed (?)
www.pscmotorsports.com
P-style
Type II
!It’s been a couple days since we’ve hashed out on this. One piece of the Hydroboost puzzle that hasn’t seen much coverage is the steering pump.
I picked up a complete setup from a salvage yard that included the factory teardrop Saginaw P-style pump with two return ports. As some of you might know, the factory PS pump placement on a “garden variety” LM7 LS engine makes for a tight fit on the frame rail, especially in conjunction with a retrofitted PS box like a 60/80 series or Scout. There’s another style of steering pump and that’s the Saginaw Type II, which is a more compact unit used with a remote reservoir. What I’m not sure about yet is if the mounting bolt patterns are the same.(?)
On the PSC website you can get either for a hydroboost application, but for some reason, they give you a list of choices for pulleys in the Type II (ranging in diameters from 6” down to 4.5”), and no pulley choices for the P-Pump. I can think of a couple advantages of having a smaller than OEM pulley -
a. More clearance between the frame for fitting into an FJ55
b. More pressure at idle with the increased pulley speed (?)
Pump Kits - Offroad - Motorsport
PSC Motorsports is THE leader in performance power steering. We design and manufacture complete hydraulic steering parts and kits for off-road, Jeep, circle track, muscle car and custom applications.
www.pscmotorsports.com
P-style
Type II
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Some digging has revealed a couple small things. The Type II pumps don’t bolt to factory LM7, LQ4, or LQ9 ps mounts. A writer whose article I found claims that type II’s flow less volume and therefore create less heat and parasitic drag. How that translates to a 4wd rig on 33”+ tires? IDK.
There is a bolt-on adapter made by Turn One Steering to run the Type II on a P-pump factory mount. Also found banjo hose fittings for the pressure outlet made by Classic Industries.
www.lsxmag.com
turnonesteering.com
www.classicindustries.com
There is a bolt-on adapter made by Turn One Steering to run the Type II on a P-pump factory mount. Also found banjo hose fittings for the pressure outlet made by Classic Industries.
PRI 2017: Turn One’s New GM Type II Steering Pump Conversion for LQ9
Turn One has the solution when every single bit of horsepower counts, upgrade to a Type II system with their easy new power steering pump conversion kit.
www.lsxmag.com
Turn One Steering - Steering Products
Upgrade your LS or LT truck power steering pump to the better-peforming Saginaw Type II pump. Offered with different conversion options.
turnonesteering.com
D91801 - Detroit Speed; Banjo Fitting; For GM Type II Power Steering Pump
This is a pressure fitting for a GM type II pump to complete this hose set. For use with Detroit Speed's power steering hose set (PN# D91302). For use with: 1967-8 1 Camaro Models with Detroit Speed Power Steering Hoses & GM Type II Power Steering Pump
Not sure why you would want less volume if you are also using hydroboost.
I used the pump and remote reservoir from a Express van.
I used the pump and remote reservoir from a Express van.
The express van pump was specifically recommended to me by my local steering box guru.
Not sure what makes it superior?
$0.10
and smokin a Jibba 
Something interesting to note -
2018 HD 2500 GMC gas engine pickup (several now that I’ve seen) running the Type II Saginaw pump in conjunction with Hydroboost and a frame mounted steering box (not rack and pinion).
2018 HD 2500 GMC gas engine pickup (several now that I’ve seen) running the Type II Saginaw pump in conjunction with Hydroboost and a frame mounted steering box (not rack and pinion).
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I'm using a trailblazer master cylinder with my hydroboost setup on my 80 series cruiser. Plenty on rock auto