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Spotted: fully streamlined/aeromodded ~2005 Honda Civic sedan (Austin, TX)   Spotted: fully streamlined/aeromodded ~2005 Honda Civic sedan (Austin, TX)
Spotted in the wild in Austin, Texas: a 2005-ish Civic Sedan with the full DIY aero treatment, from custom front bumper, to wheel covers, skirting, Kammback treatment and more. Anybody know whose it is?
By MetroMPG - 57 replies
In forum: Aerodynamics

Double kilotank: 2,009.6 mi on one 35 gal tank (   Double kilotank: 2,009.6 mi on one 35 gal tank ('07 Dodge Ram 2500 quad cab)
Distance: 2,009.6 miles; Fuel used: 35.0 gallons; Actual measured mileage: 57.42 mpg. Diesel_Dave notes the additional modifications & techniques used to accomplish this feat in this thread.
By Diesel_Dave - 85 replies
In forum: Success Stories

Heating the transmission with engine coolant   Heating the transmission with engine coolant
A good brainstorming discussion about methods for speeding up the warming of the transmission's gear oil.
By Daox - 126 replies
In forum: EcoModding Central

Aeromodded Civic VX 72mpg (image heavy)   Aeromodded Civic VX 72mpg (image heavy)
Ecotex shares with us his father's modified Civic VX that gets very impressive mileage.
By ecoTex - 357 replies
In forum: EcoModding Central

Shift points: EPA testing of manual transmissions (why beating MT ratings is easier)   Shift points: EPA testing of manual transmissions (why beating MT ratings is easier)
Find out why it is easier to beat manual transmission EPA ratings than automatic transmission EPA ratings.
By MetroMPG - 35 replies
In forum: Hypermiling / EcoDriver's Ed

15 mods = 15% MPG improvement: A-B test, 2007 Honda Civic 1.8L, 5-speed   15 mods = 15% MPG improvement: A-B test, 2007 Honda Civic 1.8L, 5-speed
A collection of mosty small & inexpensive mods, from aerodynamic to electrical to gearing changes (through oversize tires) result in an average 15% mileage improvement in a 2007 Civic.
By MetroMPG - 45 replies
In forum: EcoModding Central

Freezing the Slushbox. Torque Converter on-demand lockup switch.   Freezing the Slushbox. Torque Converter on-demand lockup switch.
Forum member orange4boy documents how he took manual control over the automatic transmission in his Toyota Previa van to force the torque converter to lock at will in any gear. (Note: requires an attentive driver to prevent potential damage). This modification gave him the largest increase in fuel economy of all his mods to date.
By orange4boy - 269 replies
In forum: EcoModding Central


Boat tail - Redneck style...   Boat tail - Redneck style...
Redneck builds a boat tail for his Geo Metro out of EMT tubing, skinned in 1/2 inch thick foam insulation board. Initial results show a ~15% improvement in real world highway MPG.
By redneck - 172 replies
In forum: Aerodynamics

Project Extended Pop-Top Aerodynamic Camper Shell (   Project Extended Pop-Top Aerodynamic Camper Shell ('99 Tacoma)
The design criteria for this fiberglass-over-foam project: extended to the end of the lowered tailgate for maximum room (and further reduced aero wake); enough room in the "up" position for a raised floor to store gear beneath while still having room to sit up and move around comfortably; simple and convenient to use.
By a8ksh4 - 344 replies
In forum: Aerodynamics

Full-boat-tail trailer with gap-fillers for Toyota T-100 pickup   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 - 354 replies
In forum: Aerodynamics

City ecodriving comparison: 2014 Mirage CVT vs. Mirage 5-speed vs. 1998 Metro 5-speed   City ecodriving comparison: 2014 Mirage CVT vs. Mirage 5-speed vs. 1998 Metro 5-speed
Econobox fuel-sipping shootout, new vs. old school: MetroMPG was curious about the fuel economy potential of the 3-cylinder 2014 Mitsubishi Mirage. So he pitted a 5-speed manual Mirage against a Mirage CVT against his modified 1998 Geo Metro (Firefly) manual in a city MPG comparison.
By MetroMPG - 91 replies
In forum: Hypermiling / EcoDriver's Ed

208 km (129 mi.) in EV mode with a 2007 prius plugin 20kWh   208 km (129 mi.) in EV mode with a 2007 prius plugin 20kWh
Planetaire shares his very nice 2nd gen Prius PHEV conversion.
By planetaire - 27 replies
In forum: Hybrids

Ren: My   Ren: My '92 Civic
Following on the heels of the aesthetically entertaining, aero-modified Project Anal Probe (1992 Ford Probe), Sven7 is well underway in the transformation of his latest steed into an even more efficient and unique looking machine.
By Sven7 - 392 replies
In forum: EcoModding Central

89 civic wagovan 5spd (very slow build: power + ecomods & lots of pics!)   89 civic wagovan 5spd (very slow build: power + ecomods & lots of pics!)
Meet "Skiddy", a 1989 Honda Civic Wagon being transformed into a "dual purpose" sleeper: 300 horses PLUS a pile of efficiency mods. The goal is 35 MPG (US) combined (compared to the original EPA rating of 28 MPG combined).
By vrmouseyd15b - 298 replies
In forum: EcoModding Central

VW Lupo 3L --> 2L   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 - 379 replies
In forum: EcoModding Central

Why no more lean burn??   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 - 101 replies
In forum: General Efficiency Discussion

4 does-for-more-bros (97 civic dx sedan: HX + auto to manual swap)   4 does-for-more-bros (97 civic dx sedan: HX + auto to manual swap)
Jakins wanted more doors and A/C, so he picked up a cheap 4-door Civic DX automatic and is converting it over to HX mechanicals and manual transmission, plus aero mods. His goal: 55-60 mpg US.
By Jakins - 64 replies
In forum: EcoModding Central

DIY open source lithium BMS (battery management system)   DIY open source lithium BMS (battery management system)
This thread details the development and testing of a lithium battery management system (BMS). The system is being built for a Toyota Prius plug-in conversion kit, but it could be used in many other applications.
By Daox - 42 replies
In forum: Fossil Fuel Free

Experiment: smooth wheel discs tested A-B-A - 4.6% mpg improvement @ 65 mph   Experiment: smooth wheel discs tested A-B-A - 4.6% mpg improvement @ 65 mph
Forum member Concrete tested smooth wheel covers on his 2000 Chevrolet S10 pick-up, and posted the data compared to the stock alloy wheels. A-B-A testing found +1.3 mpg -- that's about 4-5% depending on how you want to figure it.
By Concrete - 318 replies
In forum: Aerodynamics

Project: The Anal Probe   Project: The Anal Probe
Meet the Anal Probe: a 1992 Ford Probe 5-speed that is half art car, half aerodynamic modifications showcase. It's a student's winter beater on a mission: "EPA ratings for the car are 21/28 mpg. I'm shooting for 40 mpg with the aero mods and some conservative driving." In the end, he beats his goal handily... and celebrates by giving the car a new, completely different paint job ... and a full boat tail for even better MPG.
By Sven7 - 848 replies
In forum: EcoModding Central





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