I started a thread yesterday asking about transmission options, and a thread today about wheel and tire options... but I decided to start a thread to do two things: Link to the other threads, show what I've already decided, and if I ever do make any progress, show that progress. The other threads are for deciding what to use in the car, this thread is for discussing the project itself.
Do keep in mind that this project is only in the planning stages, and I don't have any experience doing stuff like this. This project may never take off.
So, here's the specifications that I've already decided. I'm going to try to work in metric as much as possible here.
Target width: 1200 mm (47.24")
Target length: 3500 mm (137.8")
Target height: 1150 mm (45.28")
Target weight: 350 kg (772 lbs)
Construction: Steel space frame (ala Lotus 7,) fiberglass enclosed body with plexiglass (or similar) canopy
Layout: Four wheels, single-passenger, mid-engine, RWD
Engine: Kubota D950 (here's a really crappy video of the specific engine in question running: http://www.youtube.com/watch?v=jHV4RZsl-bI)
Power: 14.5 kW (19.5 hp) @ 3000
Torque: 55.6 Nm (41.0 ft-lbf) @ 1800
Max RPM: 3200
Weight: 83.1 kg (183.2 lbs)
Transmission: Porsche 901 or 914 (same difference, and if I have to tear into the trans to change gearing anyway, flipping the diff on a 901 isn't going to be a problem)
Gearing: TBD (3.8570 R&P, 0.5950 5th - have to determine what the optimal ratio spread from there will be)
(relevant thread: http://forums.thecarlounge.net...33152)
Suspension: Double-wishbone front, longitudinal Watt's linkage rear (relevant thread: http://forums.thecarlounge.net...89030)
Wheels and tires: Volkswagen 14x3.5J ET45 4x100 steel w/ Continental CST14 T105/70R14 tires (relevant thread: http://forums.thecarlounge.net...34602)
Brakes: Front disc, unknown rear, NO power assist (TBD what car they'll actually come off of, suspension and wheels may determine that)
Crappy sketch of the car layout:
Modified by bhtooefr at 8:53 PM 3-27-2009