Steering effort for manual 16:1 - should it be this high?

Suspension, Steering and Chassis

  1. 66fs

    66fs FABO Gold Member FABO Gold Member

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    Might just need the manual box pitman arm with the smaller spline shaft.
     
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    • DionR

      DionR Well-Known Member

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      • mvh

        mvh FABO Gold Member FABO Gold Member

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        I just want to point out that the small diameter steering wheel is the easiest thing to change, and will have a large effect on perceived effort.

        The whole point of a small steering wheel is that it enables quick turning WHEN YOU HAVE LIGHT STEERING EFFORT (as in a go-kart or small sports car). But the entire rest of your set-up is creating HIGH steering effort. So something has to give. If you are really in love with that wheel, I think you will have to go to power steering. The Borgeson quick ratio system is very nice — I have it in my convertible. My fastback has a factory manual box (24:1) and a stock steering wheel with 215/70-14 tires, and I find that makes for very heavy steering getting out of parking places, plus it is too slow to keep up with hairpin switchbacks on the road, which the Borgeson handles easily.
         
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        • cookietruck

          cookietruck Well-Known Member

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          I put a 16:1 PST manual box on my 67 b-body. I had to pull it right back off because it had some slop in the sector shaft. I will say though, I was surprised how easy it was to turn the wheels in the garage standing still. Much easier than a PS box without the engine running. I could do a 1/4 turn on the wheel with one hand, factory steering wheel. 225/70 tires on the front and the air pressure is a little low.
          Now...I need to put the replacement box on the car and it is a little tighter than the first box I had on the car, but I don't see that making a huge difference.
           
        • RustyRatRod

          RustyRatRod I was born on a Monday. Not last Monday. FABO Gold Member

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          It helps with good steering return as well, which is also a good benefit to have racing. That's what causes the wheel to want to return to center. Positive caster. But, a lot of serious road racing vehicles do run very low and even negative caster. It all depends on what you're doing.
           
        • Swinger 340

          Swinger 340 Well-Known Member

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          Lots of good information here, I would like to add. The tire size here seems to be the largest downfall in this app. I have a 72' Dodge B-300 van that I installed TA G60's on a 15" US-Indy rim(special ordered). About every 3 years I need to have the frame at the gearbox welded, due to cracks. Never had that problem with the stock tires. The wider tire takes much more effort to move then the thinner ones. I like my profile of the van, so this is what I have to live with. Enjoy!!!!
           
          Last edited: Jul 23, 2021
        • kursplat

          kursplat FABO Gold Member FABO Gold Member

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          talk to @BergmanAutoCraft he has complete setups or can piece together what you want
           
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          • pishta

            pishta I know I'm right....

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            • kursplat

              kursplat FABO Gold Member FABO Gold Member

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            • pishta

              pishta I know I'm right....

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              you can adapt about anything.....Is that Borgeson power box a bolt in? thats tiny!
               
            • kursplat

              kursplat FABO Gold Member FABO Gold Member

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              yup, just got this working
              4.JPG
               
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              • Jeremiah

                Jeremiah Well-Known Member

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                My 383 4-speed '68 GTS has a 16:1 box with fast ratio arms. G70-14 polyglass on the front. It has the original steering wheel and 100% stock front end, iron heads and exhaust manifolds. It's heavy and quite fun. Definitelt takes some muscle and finess in a stick car. That steering wheel is killing your good time IMO. Look at quarter max or speedway for a bigger wheel in that style.
                 
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                • MRGTX

                  MRGTX Well-Known Member

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                  how do you like it? I have no idea what kind of current something like this might draw. Did you need to upgrade the alternator or anything else?
                   
                • MRGTX

                  MRGTX Well-Known Member

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                  Good point about the stick shift. Those moments when you only have one hand on the wheel could be problematic at times.
                   
                  Last edited: Jul 22, 2021
                • kursplat

                  kursplat FABO Gold Member FABO Gold Member

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                  only done one test drive so far but it's just right. full assist is firmer than a stock 60's P/S setup, not over boosted, but still 1 armed parking lot doable. with the assist at it's lowest it's almost as if it's off. i used a kit from EPAS Performance. it's a very nice set up and if i'd used the stock column, and just followed their instructions, it would have gone easy. since i had an IDIDIT tilt column i wanted to use, i managed to over complicate it, much to my enjoyment :D. also the floor plate for their kit is only for a 65'. they didn't realize all the different A-body floor plates that were used. i've sent them the info to correct that. i just made my own from 3/8" aluminum. as far as the alternator, i already have a 75A powermaster with a lot of re-wiring. supposedly this only draws 9A max
                  edit: 15" steering wheel
                  27.JPG
                   
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                  • MRGTX

                    MRGTX Well-Known Member

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                    Sounds like a great option. Thanks for the info on this. It looks like these systems are over a grand new. I’ll keep an eye out for a used one as a possibility…

                    Also, well done on helping them out with the technical info.
                     
                  • sccachallenger

                    sccachallenger Well-Known Member

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                    LOTS of great information in this thread!
                    So what tire size on the front, what rim width, what back spacing?
                     
                  • kursplat

                    kursplat FABO Gold Member FABO Gold Member

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                    there are threads on reusing toyota setups and others.
                    example: Electric power steering
                     
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