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Speed Sensitive Power Steering

Old Feb 11, 2007 | 07:58 PM
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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?
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Old Feb 11, 2007 | 08:49 PM
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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
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Old Feb 11, 2007 | 10:49 PM
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Was it progressive?
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Old Feb 12, 2007 | 03:55 PM
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BTTT for a techy
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Old Feb 12, 2007 | 08:45 PM
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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; Feb 12, 2007 at 08:55 PM. Reason: Spelling
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Old Feb 12, 2007 | 09:15 PM
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Ok - here we go - there is a lot of Orifices mentioned but bear with it


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Name:  PAS-1.jpg
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So thats it in a "eccentric sort of Orifice"
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