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Power steering system fluid pressure.

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According to my FSM, the relief pressure is 1450-1500PSI +/-50 and the flow rate 2.4-2.8GPM@1500RPM.

Edit: the "normal" unloaded pressure is 50-80PSI.
 
I was looking at the specs for a GM PS pump the other day. The pump produced 850psi and had a relief (blowoff) valve that activated at 1200psi
 
lol....a hydrulic pump is cheap. no need to use a powersteering pump. try a pump for a plow or something, or just get a real pump off ebay. i got a 10k hand pump for 70 bucks.
 
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