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Notable eco-cars (old & new) spotted in the wild: post your pics! Check out interesting and rare eco-cars that people have stumbled across, and share findings of your own! By MetroMPG - 1472 replies In forum: General Efficiency Discussion

You know you're an ecomodder if/when... One of the more popular threads on EcoModder, this is a lighthearted and tongue-in-cheek look at the many potential signs and symptoms that you may be more interested in fuel economy than the average person... By Tango Charlie - 2491 replies In forum: The Lounge

Buy a trailer (instead of a pickup truck) This is a thread for anyone thinking about getting a pickup truck as a first or second vehicle when adding a trailer to your car would do instead (and save you lots of fuel & money). By oil pan 4 - 1313 replies In forum: General Efficiency Discussion

t vago's MPGuino workspace thread, continued Check out t vago's continuous enhancement of the multi-featured MPGuino fuel economy computer / gauge. By t vago - 193 replies In forum: OpenGauge / MPGuino FE computer

Paul & Sabrina's cheap DIY 144v motor controller A thread and project of epic proportions where Paul designs a DIY 144V DC electric motor controller. By MPaulHolmes - 7381 replies In forum: Open ReVolt: open source DC motor controller

Efficient, cheap beaters! Used car ads: 35 mpg highway or more for $1500 or less People often sign up on the forum seeking advice on cheap, economical beaters. The purpose of this thread is to go beyond the hypothetical, and post actual ads of actual available cars. They're out there, people. (Our non-North American members should feel free to laugh at our concept of 'efficient' little cars.) By MetroMPG - 1475 replies In forum: For Sale

What is it? (Spotted: rear engine TDI, custom aero body) Member rjacob spotted this custom bodied mystery eco-car on the road in Rochester, NY. It's got a TDI badge on the rear, and that's apparently where the engine resides as well. By rjacob - 200 replies In forum: EcoModding Central

94 Caprice Wagon 5.7L project--46 MPG so far A huge boat of a vehicle modded to get some crazy good mileage. By funkhoss - 152 replies In forum: EcoModding Central

Aerodynamic streamline template - online tool (view streamlined extension on any car) Member seifrob made an online tool that overlays a streamlined template on an image of any vehicle to visualize the "ideal" extended low drag shape. Very useful for anyone considering building a drag-reducing Kamm back, full boat tail, box cavity, spoiler, etc. By seifrob - 186 replies In forum: Aerodynamics

Boat tail project based on a single wheel trailer... BamZipPow's epic customization & refinement of a single-wheel, drag-reducing trailer used on his already extensively aero-modified 1998 Toyota T-100 pickup. "Mileage is averaging around 27mpg with the trailer," he says, which he estimates is about a 2 MPG improvement. By BamZipPow - 1083 replies In forum: Aerodynamics

CarBEN EV5 Full Sized Prototype Construction - 5 Seat Electric Car From Scratch NeilBlanchard has begun the construction process to build the full-sized prototype of his aerodynamic 5-passenger electric car he's nicknamed "CarBEN EV5". The prototype is being assembled with rigid foam sheets cut on a CNC machine. By NeilBlanchard - 770 replies In forum: DIY / How-to

Full-boat-tail trailer with gap-fillers for Toyota T-100 pickup Phil says: "The boat hull is far from ideal but using it will save hundreds of man-hours. Maybe 40 mpg HWY... we'll see. P.S. the trailer is large enough to serve as a rigid tent, for car-camping." By aerohead - 358 replies In forum: Aerodynamics

My 1991 Talon TSi Compound Turbo AWD It would almost be easier to list what hasn't been done engine wise to this car. Suffice to say that he gets mid 40 mpg with an auto, and is pretty darn fast. Check out this extensive build here. By pgfpro - 456 replies In forum: EcoModding Central

A better alternator delete By Daox - 148 replies In forum: EcoModding Central

Designing a header for fuel economy (for a Metro G10 1.0L) Daox walks through the steps on how to design a header to improve fuel economy for his Metro's G10 1.0L engine. By Daox - 129 replies In forum: EcoModding Central

Aero RV (custom boat tail for '95 Ford E-350 Class C motorhome) Orbywan says: "About a month ago I decided to build a boat tail for my 95 E-350 Ford 25 foot turbo diesel Class C motor home. I read the aerodynamics study NASA did at Dryden Air Force base back in the late 60’s on the squared off E-150 van about 20 times, as well as several other studies, drew up some plans and three weeks later and some serious sweat the prototype is done and tested." Initial results show about a 20% mpg improvement. By orbywan - 189 replies In forum: Aerodynamics

"Short-shifting" a Jeep Patriot & Audi A4 CVT (forcing early "upshift") saves gas Does your car's automatic transmission have flappy paddles? What about a manual shift gate or shift buttons on the steering wheel? If so, you may be able to save fuel by wresting control from the computer over your upshifts. MetroMPG shares his experience in a Jeep and an Audi. By MetroMPG - 17 replies In forum: Hypermiling / EcoDriver's Ed

VW Lupo 3L --> 2L Vekke has taken one of the world's most efficient cars and is modifying it extensively for even better results. "Best fuel consumption so far is 2.24 L/100km at 80 km/h average speed, which equals 105 MPG (US) at 50 MPH avg. speed." By Vekke - 389 replies In forum: EcoModding Central

Recumbent Honda 90 Ironside customizes and aeromods his Honda 90 motorcycle into a recumbent. By Ironside - 179 replies In forum: Motorcycles / Scooters

Drag reduction modifications in wind tunnel: Audi A2 from Cd 0.288 to 0.204 By Vekke - 60 replies In forum: Aerodynamics