Now up to 57.3 mpg at 60 mph in my 97 Saturn SC1

[cheapybob]

Gettin up there! Maybe I'll make it to 60 mpg when I finish aero mods and get my preheated fuel gizmo I built working. I wish I had lighter rims and tires, and a 98+ trans, but just too much money to change those things. Once the mods are stable, I'll make one try with gas additives just to see if they help or not.

This is a 97 SC1 5 spd 1.9L with AC and PS on normal 87 octane Mobil gas, no additives, driving at about 60 mph on the same 22 mi test loop I've been using with small hills and turnaround cloverleaf, etc, avg speed 57 mph, max speed 62 mph, outside temp about 60f, no wind, slight drizzle, no drafting trucks, no coasting, had to hit brakes 1 extra time due to traffic. All readings from my Scangage with error max about 1%. I also have a constant Air/Fuel LED readout and its not running lean. I had about 35 lbs of groceries in the car, but have the spare removed to reduce weight

Aero mods
- no antenna (I have a CD changer, who cares)
- no wipers (using RainX like my race car)
- Taped front end for lower drag with holes sized for optimal cooling (like my race car)

Engine/Trans
-hotter thermostat Napa 268
-105 ohm resistor on a switch instead of IAT sensor for 242-247f signal
-all synthetic fluids + Valvoline Synthetic Oil Treatment
-insulated hot air intake (actual temp about 150f) look in my pics at Saturnfans.com
-Champion copper plugs gapped .040
-Bosch plug wires

Other
-45 psi tire pressures