Steering rack/pump compatibility
Thread Starter
Tech Contributor
Joined: Jun 2004
Posts: 20,905
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From: I tend to be leery of any guy who doesn't own a chainsaw or a handgun.
Steering rack/pump compatibility
Just curious what the Steeroids conversion crowd is using for a pump. I'm getting a custom width rack built for my C4 suspension conversion, and am curious about re-using the stock pump. It's my understanding, and please correct me if I'm wrong, that pumps that connect to power boxes are quite a bit higher pressure than pumps that connect to racks. Seeing that our stock power system is an assist cylinder, rather than a power box, is the pump pressure a lower level that is compatible with most racks?
Thanks for the input and advice.
Mike
Thanks for the input and advice.
Mike
Team Owner
Joined: Jul 1999
Posts: 65,492
Likes: 230
From: Orange Park Florida
Pay attention to Jim Shea, he designed many of these systems, or knows who did.....his information is gospel, and you need do a search here/wherever you can find it....
BUT, I ran my stock '72 p/s system with a serp drive '87 vette pump and someone said use the '72 valving....that large brass nut the line screws into....so I swapped it over, and it worked fine from about '95 through '01, then I swapped to a '92 Grand Am rack, and lost track of the C4 valving....oh well, works fine....last year I added a hydroboost, and its fine....
go figger...
BUT, I ran my stock '72 p/s system with a serp drive '87 vette pump and someone said use the '72 valving....that large brass nut the line screws into....so I swapped it over, and it worked fine from about '95 through '01, then I swapped to a '92 Grand Am rack, and lost track of the C4 valving....oh well, works fine....last year I added a hydroboost, and its fine....
go figger...
Le Mans Master
Joined: Nov 2003
Posts: 5,772
Likes: 694
From: Maryland
St. Jude Donor '05, '09, '15
I'm using a stock pump with a flow control valve shim kit. I am using all 5 shims. The kit shows a remote reservoir type pump but the kit is the same for early attached reservoir pumps.
