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GM Power Stearing Pump



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Old 08-09-2009, 03:14 PM   #1
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GM Power Stearing Pump

What would be the best Pump to run with a stock stearing box with a hydo assist? I have everything in place and have been using it for about 2 years. It works OK, However it is a little slow. Go figure. I have drilled out the valve like everyone recomends.

Now It's all mounted to a early Chevy Big block and the pump is starting to leak around the can. I can reseal rebuild or replace the pump.

Before I do that what is there a better pump I bolt on without too much trouble that mite work better? I'm running V belts along with a Holly blower so changing the belts is out of the question. Like everyone else I would like to do this as inexpensively as possible. $200 $300 would be cool to get better stearing.

Thanks in advance.

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Old 08-09-2009, 03:50 PM   #2
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Give these guys a call.

http://www.pscmotorsports.com/gm-pum...8_174_181.html
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Old 08-09-2009, 04:38 PM   #3
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Old 08-09-2009, 04:51 PM   #4
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Originally Posted by Elcaminoman View Post
I have drilled out the valve like everyone recomends.
Did you modify the spring any or add/remove any washers from the valve.

I believe drilling the valve just improves flow. You have to fiddle with the spring/washers to get the ideal pressure.
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Old 08-09-2009, 06:38 PM   #5
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Did you modify the spring any or add/remove any washers from the valve.

I believe drilling the valve just improves flow. You have to fiddle with the spring/washers to get the ideal pressure.
X2, I found no benefit in drilling it out.
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Old 08-10-2009, 06:21 AM   #6
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Thanks looks like it's not going to be to bad money wise and yes I did something to the spring I think it was a thicker washer.
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Old 08-10-2009, 06:41 AM   #7
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change the pump pulley to a smaller one. drilling out the orfice will do nothing if you are not running enough pump speed.
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Old 08-10-2009, 08:15 AM   #8
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change the pump pulley to a smaller one.
If you need a smaller pulley, I have one. Just measure yours.
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Old 08-10-2009, 02:18 PM   #9
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Old 08-10-2009, 06:07 PM   #10
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Thanks for the offer Dott. I'll check and get back with you
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Old 08-10-2009, 06:08 PM   #11
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I saw the hydo pump on the PSC web site maybe I'll go that route
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Old 08-11-2009, 04:05 AM   #12
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Does anyone have a source for pulleys? I want to get a second one to put on my spare pump so it is a quicker change if I have to do it on the trial. I found a few on psc's site, but they only have one option for the P-pump.
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Last edited by dragoonranch; 08-11-2009 at 04:16 AM..
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Old 08-11-2009, 07:34 AM   #13
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I got mine from AGR years ago,friend of mine worked there and sent me a box of used pulleys from p-pumps used on older fords. I know at one time Tom at PSC bought a lot of cores to rebuild too. call ether one and ask if they have any...
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Old 08-11-2009, 09:03 AM   #14
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Get them from a junk yard. Cheaper, more selection. Just need a tape measure to compare them.
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Old 08-11-2009, 09:59 AM   #15
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Get them from a junk yard. Cheaper, more selection. Just need a tape measure to compare them.
I am usually on a very tight time 'budget' when I am home, so I don't get to go JY'ing as much as I would like.

I will holler at Tom to see if they have anything.
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