I have done a number of things to this car to improve the static front/rear weight bias, and amongst them was moving the drivers seat as far back as it can possibly go. I made a new seat bracket early on that moved the seat back and optimized the positioning of my custom pedal assembly to work with the new seat position. The pedals, however, are not the only control that I need to be able to reach. The steering wheel needed to be about 6.5″ further back. A simple means of handling this is to make a steering wheel extender. To do that, I merged the base of the OEM wheel hub, which bolts to the steering column, to the front part of my Sparco steering wheel hub, which the wheel screws into, with a spacer in between. The base of the OEM hub and the front part of the Sparco hub are both made of mild steel, and I happened to have some scraps of 2.5″ exhaust tubing laying around. I cut the tubing to the correct length and welded the pieces together.
After optimizing the distance between the wheel and driver, I had to optimize the angle of the steering column because the extender alone placed the wheel up far too high–the top of the wheel obstructed my view out the windshield. This meant lengthening the mounts that hold the steering column to the dash bar, lowering the steering column itself. I ground off the old mount and welded my longer mounts in place.
Firstly, the OEM steering wheel hub resembles a slice of bread.
This photo illustrates the excessive angle that was present, placing the wheel too high, before I updated the steering column mounts to lower it.
After I adjusted the angle.
Optimal position is generally regarded as when you can rest the bottom of your wrist on top of the wheel without leaning forward. I’d say this is dead-on.