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Old 04-28-15, 12:22AM   #1
7D9TA
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Default Can I run a power steering gearbox with no fluid?

I currently have manual steering on my 79TA. 7 turns lock to lock. Wheel is easy to turn but it suks to saw on the wheel so much. I'm thinking about converting my steering column to electric power steering and going back to a 2.5 turn lock to lock power steering gearbox. It does not look to difficult to modify my column to use the electric power assist motor. My question is about the power steering box. I have a reman box that has never had fluid in it. Does the power steering fluid provide lubricant to the internals of the greabox? I can loop the pressure hose to the return to prevent dirt from getting into the unit. do I need to have fluid in it also?
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79 Trans Am
476 IAII, 88mm Garrett turbo. 4000 lb race weight.
Best pass so far 9.65 @ 140. 1.41 60 ft.
4 lbs boost on t-brake. 14 lbs going down the track.
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Old 04-29-15, 09:45PM   #2
sprint250
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Does the power steering fluid provide lubricant to the internals of the gearbox? - YES

Do I need to have fluid in it also?- "It" meaning the box? yes.
In the hose? Should not make a difference as there is no pressure in the system but check on line with some power steering box Experts like Borgerson.
I have seen/heard of circle track guys doing this but do not know all the subtleties of it.
A PS box is an absolute bear at low speed with no power assist.
That can crack a stock steering wheel. LOL
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Old 04-29-15, 10:58PM   #3
DBell
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Why not just reattach and run the power steering pump instead of converting to electric?
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Old 04-29-15, 11:24PM   #4
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Quote:
Originally Posted by sprint250 View Post
Does the power steering fluid provide lubricant to the internals of the gearbox? - YES

Do I need to have fluid in it also?- "It" meaning the box? yes.
In the hose? Should not make a difference as there is no pressure in the system but check on line with some power steering box Experts like Borgerson.
I have seen/heard of circle track guys doing this but do not know all the subtleties of it.
A PS box is an absolute bear at low speed with no power assist.
That can crack a stock steering wheel. LOL
Thx. I figured it did but I have seen many track cars that just removed the lines and drained the fluid. Not sure how long that would work on the street.

The electric power steering will provide the muscle at low speeds.
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79 Trans Am
476 IAII, 88mm Garrett turbo. 4000 lb race weight.
Best pass so far 9.65 @ 140. 1.41 60 ft.
4 lbs boost on t-brake. 14 lbs going down the track.
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Old 04-29-15, 11:31PM   #5
7D9TA
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Quote:
Originally Posted by DBell View Post
Why not just reattach and run the power steering pump instead of converting to electric?
Sorry, guess I forgot to add that little detail in the first post. The turbo headers are in the way. I don't have room to put the pump back on.
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79 Trans Am
476 IAII, 88mm Garrett turbo. 4000 lb race weight.
Best pass so far 9.65 @ 140. 1.41 60 ft.
4 lbs boost on t-brake. 14 lbs going down the track.
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Old 04-29-15, 11:39PM   #6
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I put a manual box from an S10 in my car, easy conversion and I have wide front tires and it turns well. There are some small pumps with remote p/s cans for the fluid. The nascar guys run them. I forgot what company sells them. I went manual until I can put a rack in.
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