605 to 800

[Low_Bridge]

60 5 to 800

1. What is the difference if I go with complete 85 Mont SS set up Pump, Gear Box (3 turns to lock) shaft & lines.......... in handling ?

vs

Just putting in a Cardone 27-6550?

​

2. Variable vs constant Pump what is the difference/

I've read where for example a 79 WS6 Trans Am had a constant pump ( I owned a new one one back in 79)

3. What would it take to get the "WS6" feel in my boat ~ 81 Malibu 4dr c

4. Turns to lock vs ratio? what matters more?

Thanks ~

 

[abbey castro]

I was not aware of a "constant pump" what makes it different from any other power steering pump as the pump is turned by the pulley when the engine running not cycling ON and OFF unless you have the AC switch at the pump which turns the AC OFF at full lock.

 

[abbey castro]

60 5 to 800

1. What is the difference if I go with complete 85 Mont SS set up Pump, Gear Box (3 turns to lock) shaft & lines.......... in handling ?

vs

Just putting in a Cardone 27-6550?

​

2. Variable vs constant Pump what is the difference/

I've read where for example a 79 WS6 Trans Am had a constant pump ( I owned a new one one back in 79)

3. What would it take to get the "WS6" feel in my boat ~ 81 Malibu 4dr c

4. Turns to lock vs ratio? what matters more?

Thanks ~

1. The Jeep shaft will take out a lot of slop out of the steering wheel.
4. Lock to lock is measured as a ration of wheel turn to wheel turn stop left/right 2.5 to 1 vs 3 to 1 (sample)
3. Not possible: unless you take out all your suspension and go aftermarket with frame braces all over the place and wheels/tires
2. I like to know what the difference is (hadn't heard of a constant pump)

 

[Low_Bridge]

what the difference is (hadn't heard of a constant pump)

I was not aware of a "constant pump" what makes it different from any other power steering pump as the pump is turned by the pulley when the engine running not cycling ON and OFF unless you have the AC switch at the pump which turns the AC OFF at full lock.

Really ? Those are answers Why did you answer sarcastically to something you hadn't heard of ? I may be an arse but that's just arrogant ~ we must be related ~Peace

 

[gnvair]

The differences in the pumps is in the pressure regulator which is the fitting the high pressure hose threads into. I do not trust parts store pumps to come with the correct regulators. Finding an original pump from a performance application is the best way to get it. The next way would be to send your existing pump to Lee Steering or Turn One and they can build it to you preference in feel and tailor it to the steering box you are using.
The steering box differences will be in ratio and "feel". By this, I mean the amount of effort to turn the steering wheel. This effort can also be called amount or lack of assist to give more road feel. This is built into the steering box via internal torsion bars that are not easily replaced.
GM has used variable ratio steering boxes and constant ratio boxes. The variable ratio boxes were used from the late 60's and into the 80's. These boxes would have one ratio on center and would change ratio as the steering wheel is turned towards the locks. GM went to using constant ratio boxes on pretty much everything in the mid 80's.

 

[abbey castro]

The differences in the pumps is in the pressure regulator which is the fitting the high pressure hose threads into. I do not trust parts store pumps to come with the correct regulators. Finding an original pump from a performance application is the best way to get it. The next way would be to send your existing pump to Lee Steering or Turn One and they can build it to you preference in feel and tailor it to the steering box you are using.
The steering box differences will be in ratio and "feel". By this, I mean the amount of effort to turn the steering wheel. This effort can also be called amount or lack of assist to give more road feel. This is built into the steering box via internal torsion bars that are not easily replaced.
GM has used variable ratio steering boxes and constant ratio boxes. The variable ratio boxes were used from the late 60's and into the 80's. These boxes would have one ratio on center and would change ratio as the steering wheel is turned towards the locks. GM went to using constant ratio boxes on pretty much everything in the mid 80's.

Thanks for the explanation.

 

[Low_Bridge]

The differences in the pumps is in the pressure regulator which is the fitting the high pressure hose threads into. I do not trust parts store pumps to come with the correct regulators. Finding an original pump from a performance application is the best way to get it. The next way would be to send your existing pump to Lee Steering or Turn One and they can build it to you preference in feel and tailor it to the steering box you are using.
The steering box differences will be in ratio and "feel". By this, I mean the amount of effort to turn the steering wheel. This effort can also be called amount or lack of assist to give more road feel. This is built into the steering box via internal torsion bars that are not easily replaced.
GM has used variable ratio steering boxes and constant ratio boxes. The variable ratio boxes were used from the late 60's and into the 80's. These boxes would have one ratio on center and would change ratio as the steering wheel is turned towards the locks. GM went to using constant ratio boxes on pretty much everything in the mid 80's.

Makes sense, thanks for your input

 

[gnvair]

Here is an excellent link to the details of the power steering pump pressure regulators. This link is over 20 years old so many of the GM part numbers are most likely discontinued

Valve mod page

 

[gnvair]

A good link for the steering box internal information http://jeffd.50megs.com/Bobs_steering_page.htm

12.7:1 steering box Identification

 

[abbey castro]

Here is an excellent link to the details of the power steering pump pressure regulators. This link is over 20 years old so many of the GM part numbers are most likely discontinued

Valve mod page

this is a good writeup, could be a good winter project. Something new everyday! Thanks