Anyone have any advice on an upgrade for my stock 95 power steering pump other than a pulley swap? I have read different threads here about pumps that flow less than stock and I need the opposite. I need a pump to flow more at idle over the stock pump.

Any suggestions?

 

I read an article in GM High Tech Performance maybe last year on an aftermarket ps pump that is higher performance. Unfortunately that was so long ago that I don't recall the manufacturer or which issue it was in. You could maybe contact them for answers.

 

I read about that pump on this site and everyone stated that pump pushes less fluid at idle than a stock pump.

 

Why would you want a pump that flows more than stock? All it would do is overheat easier. The stock pump flows too much as it is, only so much flow is actually needed for the steering, the rest is excess flow. This is exactly why all high performance pumps flow less, as to help keep from overheating at higher rpms when racing.

At idle and very low speed such as parking lots, the low flow pumps may make it slightly harder to turn the car due to low flow, but just up the rpms just a tad to compensate.

 

My 95 LT1 is in my 99 Jeep wrangler. I have full hydraulic steering and right now I am at the limit of the stock pump. I need something to flow more to keep up with my orbital valve. I do not have cooling problems and shouldn't with my setup. I need something to flow more at idle as most of my wheelin is done off idle.

Video for proof.

http://youtube.com/watch?v=_OQsiGSr_pQ

 

just get a smaller pulley for the ps pump. That outta do it

 

Andy

 

oh. haha.......

well there are no other LT1 pumps then the stock one and then the one that flows less then normal. Unless you find a pump thats aftermarket that somehow will work, I believe putting a smaller pulley on is the only real choice.

hmmm, on further thought you might be able to change the steering rack.....
no idea what you are using, I am assuming you are using whatever came on the jeep, but I know the 4th gen fbody came with 3 different racks.
the lt1 rack, and then 2 different ls1 racks. I have the LS1 rack with the tighter ratio, so it moves the wheels faster. Not sure where the LT1 rack fits.......but maybe there is a rack you can get that moves the wheels slower......

 

I will show my my steering setup.

This is my suction line from the pump.



The pump draws fluid from this reservoir. It is finned aluminum and made to dissipate heat.



The pump feeds the orbital valve. This is essentially my "steering" box.



The orbital feeds a massive 2.5" balanced double ended ram which is what turns my tires regardless. This is the silver powder coated piece with blue end caps.



Which the whole system makes a loop back through my inline cooler and back to my reservoir.



The only stock part to this whole system is the pump. And it doesn't keep up. I have been in contact with a couple different steering manufacturers who all told me the same thing. The Delphi corporation who produced these pumps no longer manufacturers new parts for them. What stock is out there is all that is left. So I can't get anyone to buy the stock parts to modify my pump for the needed flow since they aren't out there unless I buy a new pump direct from GM/dealer. Which may be my last option.

 

thats an impressive setup.....

 

You can try giving these guys a call and asking about this pump:

http://www.unisteer.com/mm5/merchant...y_Code=PSPUMPS

They sell these with both a "Hi-Flow" and "Low-Flow" version, the pump in the link being a "Hi-Flow." They just don't list what the flow ratings are.

The stock pumps are designated as "CB." They're designed to work with counter-clockwise pulley rotation. These pumps are "TC," (which is the Type II pump GM used in all other non-LT1 applications), and are designed to hold pressure with a clockwise pulley rotation. What you should ask is if the pulley on this pump can be run counter-clockwise if the -AN fittings are swapped. Or, if they happen to make this in a "CB" application.