Replace/Upgrade Power Steering Pump
#16
Originally Posted by griffiths
The spool valve torsion bar or rod is "inside" the spool valve ... inside the splined input shaft.
How about a 110 bar pump?
How about a 110 bar pump?
#17
Rennlist Member
FWIW, I went to a 13" steering wheel on my S4 and on the track I don't notice any effort in the steering. Of course I'm pumping 130 Bar on my adrenaline meter, I might not notice if my PS belt came off.
#18
Rennlist Member
As the 'normal' pump output is 70 bar, the 100 - 110 bar range ( which Griffiths suggested) would be an appropiate upgrade.
Shimming the spring should achieve the desired result, but unless one has a test rig to measure the dead head/relief valve pressure, it would be prudent to increase in very small steps.
Shimming the spring should achieve the desired result, but unless one has a test rig to measure the dead head/relief valve pressure, it would be prudent to increase in very small steps.
#19
Addict
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Rennlist Member
Originally Posted by SharkSkin
IIRC rack length varied over the years -- if you don't have enough adjustability in your tie rod ends a different rack may require that you replace those.
#20
Addict
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Rennlist Member
I put the Griffith's HO pump in the 79 when I changed all the hoses. I noticed a difference at parking lot speeds. (Easier to turn the wheel for sure) About the same at highway speeds which is how I like it.
#22
Addict
Rennlist Member
Rennlist Member
Jerry,
I would guess your hoses are original at 20 years old. You probably don't HAVE to replace them, but it might be a good thing to do while your in there. (Not that difficult)
BTW, I've got a brand new in the package p. steering resv. for your model year and Need to get rid of it. It might go good with your new pump and hoses!
I would guess your hoses are original at 20 years old. You probably don't HAVE to replace them, but it might be a good thing to do while your in there. (Not that difficult)
BTW, I've got a brand new in the package p. steering resv. for your model year and Need to get rid of it. It might go good with your new pump and hoses!
#23
Burning Brakes
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Join Date: Oct 2001
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Chuck, let me figure out if I really want to tackle another project. Right now everything works perfectly on my 928 which is a new experience for me.
I used to live in Plano, twice actually. North of Legacy and south of Legacy.
I used to live in Plano, twice actually. North of Legacy and south of Legacy.