Attempt to increase gas mileage (Page 2/3) ray b JUN 13, 10:52 AM smokie did it hot vapor hi MPG wing is drag up or down as a % of lift or d/f always better MPG with no wing drag or weight Raydar JUN 13, 11:11 AM The wing on the decklid of the notchback GT smoothed the airflow and actually reduced the Cd by a point or three. Had to have helped the fuel consumption, at least a bit. This was from the Pontiac SD race car magazine (whatever it was called.) fredtoast JUN 19, 09:39 PM quote Originally posted by 82-T/A [At Work]: There are also better engines you can put in there as well. I had really good fuel economy with my LD9 Twin Cam engine that I had in my 1997 Pontiac Grand Am SE and also my GT (same year). The engine has more power than the V6 Fiero engine, a significantly higher RPM, and when dropped in the Fiero... will automatically have more horsepower and performance due to the shortened exhaust length and lighter vehicle. Even if you did absolutely nothing to the engine, you can expect mid-30s on the highway with the 4T60E or a 5-Speed manual (or even a 6-speed manual) in there. Had a friend who was a huge fan of the LD9 many years ago. Factory super charger kit with bigger drive pully and some sort of cam switch. Never had it on a dyno but it pulled hard for such a small engine. He was limited by the lack of an intercooler, but was talking about an ethanol spray kit. Unfortunately he got married and that was end of the project. ls3mach JUN 20, 03:41 PM Unrelated. My best tank. cliffw JUN 22, 10:31 AM quote Originally posted by fredtoast: So if I mounted a wing on the top of my car, but flipped it over with the round side on top it would create lift (like on an airplane). Since this would make my car weigh less would that not increase my rate of feul consumption? There is one way to know. Do it. fredtoast JUN 22, 04:41 PM I just came up with another energy saving idea. I am going to put a windmill on top of my electric car so it will charge itself as I drive. Jake_Dragon JUN 22, 06:58 PM Perhaps replace it with a steam engine and use hot air. shemdogg JUN 24, 03:01 PM 1. skinnier tires 2. weight reduction 3. more efficient engine/trans 4. hypermile shem PhatMax JUN 24, 07:41 PM Helium in the tires might help…. cvxjet JUN 24, 08:19 PM Only....Drive....Down.....Hill...... By the way- for bike riders, I am trying to invent a hill that is downhill on both sides...Or both die-rections...Something like that....If I am suck-cessful I will make millions!