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Old 11 February 2007, 07:58 PM
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StickyMicky
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Default Speed Sensitive Power Steering

how does this work on the impreza?

the engine turns the pump, but how does the speed of the car effect how much power assistance there is?
Old 11 February 2007, 08:49 PM
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johnnyroper
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not sure on impreza but on my old 206 there was a speed controlled switch in the hydraulic line that presumably restricted fluid pressure when at speed
maybe impreza got similar set up
Old 11 February 2007, 10:49 PM
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StickyMicky
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Was it progressive?
Old 12 February 2007, 03:55 PM
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BTTT for a techy
Old 12 February 2007, 08:45 PM
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merlin24
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The System uses a Variable capacity pump on the later models(2003 on),the Variable being controlled by an eccentric ring in the pump.
Will post some pics up later.
ps - Turbo model is not speed sensitive

Last edited by merlin24; 12 February 2007 at 08:55 PM. Reason: Spelling
Old 12 February 2007, 09:15 PM
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merlin24
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Ok - here we go - there is a lot of Orifices mentioned but bear with it


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So thats it in a "eccentric sort of Orifice"
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