Over all plans

My over all plan is to make this car as fuel efficient, emissions friendly, and safe as I can make it. The two don't necessarily come hand in hand. If I make it super fuel efficient I'll have emissions problems. I want this car to be legal so it has to meet emissions standards. Nothing I will put here is original, it's all been done before. Some stuff will work and some won't. I may not have the time to test it all out. If I can get this car up to 75 mpg on my typical commute, then I'll feel that I have achieved something.

1. Make the car as light as possible
1. Remove everything that does not need to be in the car, unless it reduces safety or increases emissions. I've removed
   
1. Dashboard
2. Passenger and Rear seats
3. Carpet
4. Plastic Paneling
5. Ceiling padding and rods
6. Plastic door panels
7. Heater and AC Routing Plastic mess and put in bare bones heater for defroster. I live in temperate climate. The car is so small it heats up fast. I don't need to have the option to blow the air directly on me or on the window. I just need heat, not all the duct work.
8. Spare Tire - I live in the city so I'm never really going to be stranded out in the middle of no where. None of my cars have spare's and they always pass inspection.
9. Remove excess grease and gunk off of the car, but leave a little bit to keep from rusting.
   
2. Put lighter gear in the car
1. Lighter Battery! I have one of the Dry cell batteries that weight 6 lbs.
2. Plastic bolts instead of metal for things like license plate and other various places - just worked out that way
3. thinking of composite gear shift shaft in cockpit
4. smaller window defroster
   
3. Safety Improvements
1. bought bigger car chair from junk yard. It's heavier but if I take a hit I think I'll fare better. Plus GEO chair is not tall enough in the back for me. A larger chair with proper head rest can help reduce whiplash in a rear accident, so they say.
2. Roll Cage. I'm thinking of reshaping the body. I would like to move the seat to the center of the car and maybe even reshape the top of the car and bring the sides in to make less drag.
   
4. Engine
1. K&N Filter - done
   
2. Free flowing muffler - done
3. Thinking of making custom headers, larger diameter and better flow to the catalytic converter. I'd like to reduce as much pressure at the tail pipe as possible.
4. Wait for the day I can replace engine springs with servos
5. Thinking about the GEET stuff, why not if it only takes a minute when the engine is apart.
   
5. Re Use Heat Energy
1. Use a low pressure "steam engine" to do something. I like what I see from the Green Steam Engine http://www.greensteamengine.com/
2. Heat can be captured from
1. Tail pipe after the Catalytic Converter.
2. Radiator / Cooling System
   
3. Engine Block
4. Engine Oil
6. Investigate taking load off the engine
1. May a quasi hybrid car, take the alternator off the engine block and use batteries to power lights, starter, and spark system.
2. Use steam from engine to power alternator
3. Use 110 electrical hookup to charge batteries or battery
4. Use solar power to charge batteries
7. Reduce Battery load
1. LED Lights where legal
2. Efficient head lights
8. AeroDynamics
1. Good polish job for smooth finish
2. more here in the future, I want to put a much small foot print on the car, but I need to find out what I can do with Glass and frame and still keep it legal.
   
9.