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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 - 516 replies In forum: EcoModding Central

Electric car conversion: Project ForkenSwift The ongoing story of a super cheap electric car conversion: a $175 Geo Metro combined with parts from a scrapped forklift and used golf cart batteries. This low cost, medium-speed, short range runabout has been on the road now for 6 years in a small Ontario city. By MetroMPG - 1054 replies In forum: Fossil Fuel Free

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 - 203 replies In forum: OpenGauge / MPGuino FE computer

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 - 1335 replies In forum: General Efficiency Discussion

Electric Assist Project: E-charger (2000 Subaru Outback) Brucey adds a AC electric motor to the accessory belt of his engine to create a DIY PHEV Subaru Outback. By brucey - 299 replies In forum: Hybrids

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 - 1090 replies In forum: Aerodynamics

How to properly test modifications (AKA: don't believe every MPG claim you read) Here on EcoModder we see a lot of claims made about the effectiveness (or lack of effectiveness) of specific modifications. It's an understatement to say not all claims are made equal. It all depends on how rigorous the test is. By MetroMPG - 123 replies In forum: EcoModding Central

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 - 1481 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 - 2496 replies In forum: The Lounge

Why no more lean burn?? If the Honda Insight, Civic VX and HX were so good at achieving high mileage with lean burn, why is it not in all current Hondas and other economy cars? This thread looks at reasons for its demise & possible return in new cars. By Mad Adder - 131 replies In forum: General Efficiency Discussion

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 - 772 replies In forum: DIY / How-to

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 - 188 replies In forum: Aerodynamics

1997 Civic CX to HX engine/VX trans swap! 63 MPG @ 62 MPH When his 1997 Civic CX engine needed a lot of work, turbovr41991 decided to spend his repair time doing something different: he picked up a rusty Civic HX and swapped over the more efficient lean burn engine instead, and went with the more efficient gearing of the Civic VX. With a few other modifications in place, the car is returning seriously impressive highway fuel economy. By turbovr41991 - 188 replies In forum: EcoModding Central

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

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

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