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  •  » FYI Ford, Classic Mustang Tech Discussion
  •  » Power steering pump pressure

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    3/31/2023 2:57 PM  #1

    kdgt500
    FYI Addict

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    From: Huntland, TN
    Registered: 10/09/2014
    Posts: 133

    Power steering pump pressure

    I'm installing a saginaw style pump on my 67 coupe. I've read that a kit for reducing the pressure is needed. What does the original pump produce pressure wise?

     

    3/31/2023 5:06 PM  #2

    TKOPerformance
    Hyper FYIFORD ADDICT

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    From: Newark, DE
    Registered: 12/15/2014
    Posts: 7,623

    Re: Power steering pump pressure

    Not sure, the adjustment is made by people who feel the steering as delivered is twitchy.  I was one of those people, so I added a couple shims and dropped the pressure, and the twitchiness went away.  I would recommend installing it and driving it and see if you think its a problem.  If you don't you save the cost of the kit. 

     

    4/03/2023 6:04 AM  #3

    BobE
    Senior 24-7 FYI Addict

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    From: White Plains, NY
    Registered: 4/04/2013
    Posts: 2,743

    Re: Power steering pump pressure

    Check out ... 
    Borgeson Pressure Kit #8999011
    https://www.borgeson.com/instructions/899001.pdf
     

    65 Fastback, 351W, 5-speed, 4 wheel discs, 9" rear,  R&C Front End.
     

    4/03/2023 2:19 PM  #4

    kdgt500
    FYI Addict

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    From: Huntland, TN
    Registered: 10/09/2014
    Posts: 133

    Re: Power steering pump pressure

    I was looking to buy that kit but I was just wanting know what pressure the system will hold up to

       •Thread Starter
     

    4/03/2023 3:33 PM  #5

    TKOPerformance
    Hyper FYIFORD ADDICT

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    From: Newark, DE
    Registered: 12/15/2014
    Posts: 7,623

    Re: Power steering pump pressure

    Per the instructions, as delivered with zero shims it bypasses at 1,350psi, so that's max pressure. 

     

    4/05/2023 6:32 AM  #6

    kdgt500
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    From: Huntland, TN
    Registered: 10/09/2014
    Posts: 133

    Re: Power steering pump pressure

    I wasn't asking for the pressure of the saginaw pump. I was asking what the factory pumps ran or how much the system can tolerate.

       •Thread Starter
     

    4/05/2023 8:50 AM  #7

    BobE
    Senior 24-7 FYI Addict

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    From: White Plains, NY
    Registered: 4/04/2013
    Posts: 2,743

    Re: Power steering pump pressure

    My R&P PS steering is from an 88-93 Fox Body Mustang, pressure is recommended at 1000psi.  I had originally had 1200psi that made the steering 'touchy'.
    You'll need to match the pressure to the particular PS steering setup you have installed. 
    The original PS specs for 65-66 Mustangs (as listed in the Ford Service Manual) is 750-900PSI.

    65 Fastback, 351W, 5-speed, 4 wheel discs, 9" rear,  R&C Front End.
     

    4/05/2023 9:26 AM  #8

    kdgt500
    FYI Addict

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    From: Huntland, TN
    Registered: 10/09/2014
    Posts: 133

    Re: Power steering pump pressure

    I have the original factory system from 1967 and was just wondering what the system could best handle. I saw a guy comment on another forum saying he was told to keep between 700-900 psi but I've not seen any others to corroborate that with and I thought I try this forum with the wealth of knowledge in here I've seen on here.

       •Thread Starter
     

    4/05/2023 9:28 AM  #9

    kdgt500
    FYI Addict

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    From: Huntland, TN
    Registered: 10/09/2014
    Posts: 133

    Re: Power steering pump pressure

    I've recently replaced the slave cylinder, control valve and hoses in the last year or so and pump started to leak and I decided to upgrade to the Borgeson saginaw pump.

       •Thread Starter
     

     

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