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Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Suspension - Brakes - Steering> Bigger power steering pump pulley?
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Topic Review (Newest First)
03-19-2013 01:13 AM
xxllmm4 Thanks for the info. I think I'm going to go with the shims, they make a kit for about $20. Sensitivity Training - Street Rodder Magazine I'm curious if there is any chance off the shelf washers would fit to do the job for a couple dollars?
03-12-2013 07:01 AM
35WINDOW I'll throw my two cents in here too-as has been mentioned, your Pump is putting too much pressure to the Rack, and causing the "over-sensitive" feel-while it is time consuming (and a bit messy) to shim the pressure valve, that is the best way to handle the situation (IMHO)-many "diverter" or "pressure control" valves certainly do the job (I think they are band-aids.,as you are not directly addressing the problem where it begins), however you are still putting the Oil through an additional orifice, which will generally heat the oil-
03-12-2013 05:45 AM
Bonneville462 No, the pump pulley should have nothing to do with how the steering feels.. Try adding a 1/4" turn of toe in on each side and see how it feels...

If you want faster steering with more road feel, you need a different box... I have the Lee 12 to 1 and like it alot.....
03-06-2013 06:46 PM
46streetrod If your steering is feeling to loose they make flow control valve that decreases the flow of the GM pump for around $28. We use these for cars with GM pumps on MII racks.It drop the flow 1 Gallon per minute. For pressure problems there is a shim kit that goes in behind the valve on the pump,but it is trial and error.I would try the flow valve first this works 90% of the time.
03-06-2013 05:25 AM
75gmck25 Using a larger pulley would reduce boost across the range, so it would make it harder to turn at low speeds. I don't know how the pump works, but my guess is that at road speed you would be running the pump fast enough to have full boost, so it might not improve feel at all.

I think you would have better results with a variable ratio steering box, or a way to vary pump pressure. Variable ratio boxes are not that unusual, but there may not be one for your vehicle. One of the Honda's I had several years ago used a mechanical speed sensor in the PS pump line, and it reduced the steering boost as soon as you went above a certain road speed. You could turn the wheel with your pinky at idle, but it retained very good feel at road speed.

Bruce
03-06-2013 12:22 AM
xxllmm4
Bigger power steering pump pulley?

Hey everyone,

Just curious can you install a larger power steering pulley to slow the pump down and get a little more road feel? It feels way over boosted to me. Its a Chevy PS pump with a Volare front end.

Thanks

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