This weekend I turned my attention to the steering since I’m awaiting a set of camber plates assemblies from Chris @ Tangerine Racing (www.tangerineracing.com). The goal was to finish the welding on the front mounts from last weekend (since I ran out of welding gas) and get the front-end ready to accept the Porsche rack & pinion steering gear. I fell a bit short, but made fine progress nonetheless. It is surprising even to me just how much time this stuff takes to do.
Since I’m going all Porsche on the front suspension, it’s only natural to upgrade to a Porsche R&P set-up. So I acquired a nice factory unit and upgraded it with Porsche 930 turbo tie rods which is a popular upgrade to add a more positive feel and preciseness to the steering.
The column chosen is from a '73-on Super Beetle. I want to have a modern dual stalk column so I can get the wiper switch off the dash and onto the column and have a steering lock. This is also a dual bearing column which uses a similar intermediate shaft as the Porsche unit in the photo. Of course the column mounting will have to be heavily modified for the type3 as well as shortened considerably along with the intermediate shaft in order to work in the Squarsche.
Since the lay-out of the car and pedals prevents me from installing the R&P unit in the same location as a Porsche, I had to mount it above the master cylinder. This, actually, is a good thing since it will enable me to attach the tie rods from the top of the pitman arms rather than from the bottom and thus avoid bump-steer issues. To attach them, I will be modifying them with a VW Super Beetle bump-steer kit. As luck would have it, the Super Beetle tie rods have the same length and taper as the Porsche tie rods, so a cheap $15 kit is all that’s required.
I began by locating the center and where the steering shaft assembly would pass through the fwd firewall. Then I used a 4” hole saw to make the hole.
The rack could have been installed as is, however, it would be too far fwd by about 1.5” so the tie rods would be swept too far back (more than stock) and cause more bump-steer issues. So I had to set it back. So I traced a pair of lines 3” apart and carefully cut a slot lengthwise in the front firewall so it would be in the correct position.
Then used half a 3” muffler pipe to box-in the section and make it all strong again.
The pipe actually intersects 3 pieces of metal since the bottom half is a double-wall.
This is actually stronger than stock now and will become stronger when I install the 4” piece of pipe to the center to make the pass-through for the steering shaft.
This is as far as I got this weekend. I was shocked at just how much time that took to get accomplished ; I burned the better part of a day getting the tube fitted and welded. . .