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08-31-2019, 01:42 PM | #1 |
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LS Power steering pump, Hydroboost vs non-hydroboost
Does anyone know if the power steering pumps with Hydro boost have higher pressure then the non-hydro boost pumps? The only difference I can find so far is they have an extra re-turn line.
I am working on power steering lines this weekend on the 67. Thanks |
08-31-2019, 02:44 PM | #2 |
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Re: LS Power steering pump, Hydroboost vs non-hydroboost
I read all I could find on the 2 pumps and never got a clear answer....so I added a extra return fitting to my stock non-hydroboost pump....I also have a hydroboost pump on my C30 and see no difference between the 2 other than the extra hose barb
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08-31-2019, 08:44 PM | #3 |
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Re: LS Power steering pump, Hydroboost vs non-hydroboost
I’ve heard if the donor vehicle had a steering box you are ok, and if it had a rack and pinion you will have low pressure. I don’t know if this is legit or here-say.
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08-31-2019, 11:25 PM | #4 |
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Re: LS Power steering pump, Hydroboost vs non-hydroboost
I hadn't thought about it but that makes sense since a R&P operates at a lower pressure than a steering box.
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09-02-2019, 10:39 PM | #5 |
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Re: LS Power steering pump, Hydroboost vs non-hydroboost
Waiting for some good numbers, on either one!
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09-04-2019, 11:41 AM | #6 |
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Re: LS Power steering pump, Hydroboost vs non-hydroboost
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09-04-2019, 12:38 PM | #7 |
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Re: LS Power steering pump, Hydroboost vs non-hydroboost
Pressure you can adjust with a spring on the discharge port of the pump. Flow is a function of displacement of the pump. A hydroboost and a rack will take more flow than just the rack.
I'd run the type 2 Saginaw pump that came on your LS motor first to see how it works. Is there any LS motor that came in a truck or car that didn't have a rack and pinion? Off road cars running the LS Saginaw pump often use a ram steering setup and there's higher flow Saginaw pumps to meet the higher demand of the ram steering. If you need more flow, you can buy a bigger pump from Howe Steering and several others. LS trucks have a different steering pump shaft size than cars do, so be careful. They also sell different pullies for the Saginaw TC pump that will change the flow rate. |
09-04-2019, 06:59 PM | #8 |
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Re: LS Power steering pump, Hydroboost vs non-hydroboost
Chiming in here to learn as my swap 5.3 has 3 fittings and I was trying to determine if I could just cap one off and use it or needed to get a 2 port pump. I’m assuming my donor had hydroboost.
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09-04-2019, 08:07 PM | #9 |
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Re: LS Power steering pump, Hydroboost vs non-hydroboost
yes. you can just cap off one of the return line ports on the tank..no problem..
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09-04-2019, 10:54 PM | #10 | |
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Re: LS Power steering pump, Hydroboost vs non-hydroboost
Quote:
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