Join Date: Sep 1999
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Re: Power steering pump High Flow Modification
Why do you need more pressure?
In most cases it is not neccessary to increase the pump's output pressure, it will only create problems. I've been doing this in different ways for years and it does not reliably improve the stock steering system. I've seen pumps crack in half by slightly increasing the pressure. When this happens, the power steering is instantly lost. So your hauling a$$ down a windy road and you crack the pump,,,,,,,
If you increase pumps Volume flow(by drilling the hole larger) for the use of a ram, then the pressure will drop from it's stock level. Then increasing the pressure back to stock would be OK but not more then back to the stock pressure, these pumps are not designed for high pressure. If you really want a High Pressure pump, then swap out the stock unit but the saginaw pump produces more then enough pressure in stock form then you should need.
I don't know your ability so please don't take offense but make sure you know everything about your steerig system before you try to modify it in any way. It not one of those things like "if a little is good , so more is better".
Right now I use a stock chevy saginaw pump with the volume very slightly increased but NO increase in pressure, This runs a ram assist steering and hydroboost brakes with a inline cooler .