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Dash, Diffuser and Windshield suround Print E-mail

 This is a look at the layout of the rear diffuser and the placement of the license plate. The diffuser is made out of a sheet of 16ga aluminum and is bolted to the chassis using the same rivnuts as the engine undertray. The ali is very very stiff , springy, and difficult to bend. I also don't have any equipment in my garage to anneal the metal (soften) so James, Jason, Jim (that's a lot of J names!) and I used the light pole outside by the street as a former to create the bend. It took all 4 of us to get the shape where we wanted it. In this photo you can see James holding the Plate in approximately it final location. Exhaust pipes will dominate the openings on either side of the plate so there will probably be no need for a grille in this area.

Another item demanding attention is the windshield surround. Here you can see my solution. Or at least the start of a solution! There is still a lot of work to be done to complete this task, but I am happy with the process and the progress on this item.

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I took some time to start the dash design  as well. My original intention was to have a simple wraparound piece of aluminum with the guages somehow attached to it, but recently I have been leaning towards a fiberglass unit with a bit of flexibility for guage placement. You can see that I currently have one very large tachometer in the center behind the steering wheel

What I would really like is an all-in-one digital dash like the AIM Mychron 3 Gold or something similar to that.

The problem with guages (as I am quickly seeing) is that they are freaking expensive! No matter what you do, analog or digital. I am currently investigating the possiblity of producing a compact digital dash with the following features:

  • General – LED displays, brightness adjustable 64:1 range – bright, clear, simple.
  • Automatic dimming when side and headlights switched on.
  • Crystal controlled for total accuracy.
  • Support for electric reverse controls.
  • Drive/power to external LCD for odometer and trip
  • Rpm – Analog bargraph, resolution 200rpm. Range 0 to 12800rpm. Update instantaneous. Non- linear scale. Bargraph in shape of engine’s power curve.
  • Speed – 2.5digit 7 segment display, resolution 1mph. Update ~3Hz. 0 to 199mph
  • Oil pressure – resolution 10psi, range 0 – 100psi, update 10Hz
  • Temperature – resolution 5C, range 60 – 110C, update 10Hz
  • Fuel gauge – resolution 1gall, range 10galls, update 10Hz – 1 minute surge filter
  • Displays for left and right indicator, main beam, shift indicator/charging warning light
  • Gear display – 7 segment display, range 1-6 + “n” (neutral) and “r” (reverse)