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  1. #1
    Part of the furniture ajvx01's Avatar
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    Default Electric power steering

    I'm about to put a 304 in my vc Commodore, I'm weighing up whether to use the 308 vc k frame with manual steering or the VN k frame with power steering from the donor car I have bought.
    Any input would be greatly appreciated.

    But that decision has raised another question of if I should put power steering back on.. The vc originally had power steering but after the 3rd thrown belt I put on the manual steering system. I figured I'd need the extra room for intercooler piping anyway.
    That being said power steering made the car alot more streetable, so I'm wondering what options people have used for power steering in a full engine bay?
    I've heard of people using Astra electric pumps for the factory hydrolic racks? Can the electric Astra pump systems be mounted in the boot with the battery?
    Or is there a purely electric system out there that works OK on old commodores?

    Any advice would be great guys.

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  2. #2
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    HI
    Need to mount a pump in engine bay to prevent hydraulic and electrical losses if mounted remotely .
    Unfortunately u will need a mod plate for this ,vehicle/model never came with electrical steering .

  3. #3
    Not the Kingswood! hq308's Avatar
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    Mod plate for an electric steering pump???? Electric pump is different to "electric steering"

    Have seen at least one successfully mounted in the boot of a HQ that worked great, that was used with a HQ steering box.

    Have you considered/tried using a larger diameter aftermarket pulley on the power steering pump to slow it down? It might help with throwing belts?

  4. #4
    Part of the furniture ajvx01's Avatar
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    Quote Originally Posted by hq308 View Post
    Mod plate for an electric steering pump???? Electric pump is different to "electric steering"

    Have seen at least one successfully mounted in the boot of a HQ that worked great, that was used with a HQ steering box.

    Have you considered/tried using a larger diameter aftermarket pulley on the power steering pump to slow it down? It might help with throwing belts?
    Thanks mate, I'm leaning to the boot mount pump as the battery etc is back their anyway..

    I can't really fit a factory power steering pump anymore due the intake piping unfortunately. That's why I went manual steering originally.


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  5. #5
    Part of the furniture ajvx01's Avatar
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    Quote Originally Posted by swampy View Post
    HI
    Need to mount a pump in engine bay to prevent hydraulic and electrical losses if mounted remotely .
    Unfortunately u will need a mod plate for this ,vehicle/model never came with electrical steering .
    What type of losses are we talking? Electrical losses aren't an issue but hydraulics I'm not familiar with. Heavier steering etc? Is that what you are referring to? I can't imagine it would change the feel very much?

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  6. #6
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    Hi
    If u no your hydraulic basics pressure is lost over distance and volume can be reduced . More of a caution of what can happen ,it depends on design .Full electric or electric over hydraulic . Once again depends on the electrics ,need correct cable sizing etc . This is precautions i would think about due to my industrial/mechanical /fitter background. Thinking out loud .

  7. #7
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    I would mount the pump under the guard somewhere.

  8. #8
    been here .......too long Smitty2's Avatar
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    Quote Originally Posted by guy incognito View Post
    I would mount the pump under the guard somewhere.
    add custom HD wiring to feed it ( think the Astra Pump is on a 80A feed from memory*)
    then
    custom hoses (high pressure and return) and yep, Bobs ya uncle
    electric steering


    * again from memory, the Astra pump has some sort of sensor that
    decides if the pump works or not. The battery/charging system must
    give it at least 13.9v or the pumps shuts down to prevent damage
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  9. #9
    Part of the furniture ajvx01's Avatar
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    Thanks all,
    I might get my hands on an Astra pump and see what it will take to set it up.

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  10. #10
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    have seen astra pump in Hz, and also on a VY commodore drift car, guard mounted etc, has sensors as mentioned above works great from all reports

  11. #11
    casual poster Lacksballs's Avatar
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    This maybe a little left field but has anyone tried to use a VE/VF electric steering rack in a 1st generation Commodore????

  12. #12
    been here .......too long Smitty2's Avatar
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    Quote Originally Posted by Lacksballs View Post
    This maybe a little left field but has anyone tried to use a VE/VF electric steering rack in a 1st generation Commodore????
    good luck with that... as it needs the associated loom and BCM to work
    as well as being front mounted on the cross member

    You will need a sump change if you mount it where it is designed to go...


    ps... this style of electric steering was only on VF (never VE)
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  13. #13
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    i have an astra pump on my wb, works a treat mounted behind the grill and to the left so short wiring run to battery, 60 amp fuse and good alternator. The pump to use is from the TS model astra as the later models as mentioned had some sensors or something like that. When key is turned on the pump takes about ten seconds to wind up (sounds like a jet actually) but then settles down.
    cheers

  14. #14
    Part of the furniture ajvx01's Avatar
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    Quote Originally Posted by Hampy View Post
    i have an astra pump on my wb, works a treat mounted behind the grill and to the left so short wiring run to battery, 60 amp fuse and good alternator. The pump to use is from the TS model astra as the later models as mentioned had some sensors or something like that. When key is turned on the pump takes about ten seconds to wind up (sounds like a jet actually) but then settles down.
    cheers
    Awesome info thank you

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  15. #15
    Newbie olfrt's Avatar
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    Iv'e got an Astra electric pump fitted to my Mitsa Express 308 powered van. I mounted it just in front of the radiator to the left side. Wired it as per diagrams that are all over the net. I modified the hoses that came with it, to a p/steer rack. It's faultless. It stays at an idle mode until pressure is sensed, and then boosts pressure. I've been modifying cars for over 40 years, I'd never bother fitting an engine driven pump again. This is the best and easiest way to get p/steer. The pump could be hidden everywhere and anywhere. Mates have mounted them in rear quarters of utes and wagons. Would fit under the guard of almost any car. As to pressure and volume loss, they would be minimal. High pressure fuel pumps manage it ok from the rear. You'd never be under full (steering) load for a great length of time.
    To be old and wise, first you must be young and stupid..

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