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SIM-LEI aero EV achieves 84Wh/km @ 100kph - 207 miles on a ~24kWh pack! Cd is 0.19   SIM-LEI aero EV achieves 84Wh/km @ 100kph - 207 miles on a ~24kWh pack! Cd is 0.19
By NeilBlanchard - 41 replies
In forum: Fossil Fuel Free

AirFlow BulletTruck Project (aerodynamic, modified Class 8 transport doubles MPG)   AirFlow BulletTruck Project (aerodynamic, modified Class 8 transport doubles MPG)
Taking a class 8 transport truck from 5.8 mpg (lifetime mileage, at time of purchase) and modifying it to get 14.1 mpg hauling on a cross-country trip is nothing to sneeze at.
By Shepherd777 - 231 replies
In forum: Aerodynamics

Summerizing your car, Ecomodder style   Summerizing your car, Ecomodder style
Check out our list of things to do to summerize your car, and add some info of your own.
By Daox - 45 replies
In forum: EcoModding Central

I Hit 100 MPG!  (1987 Honda Elite 150 Scooter)   I Hit 100 MPG! (1987 Honda Elite 150 Scooter)
Jimd explains how he passed the 100 mpg mark: "I've owned my 1987 Honda Elite 150 Scooter for 3+ years and always averaged around 70 to 75 mpg, but this year I decided to do a few things to improve my mileage..."
By jimd - 20 replies
In forum: Success Stories

Economy modding my Chevrolet Astro work van (diesel 5-speed conversion)   Economy modding my Chevrolet Astro work van (diesel 5-speed conversion)
JB3 is after maximum effeciency while still achieving maximum usability in his 1989 Astro work van, so he's swapping in a 4-cylinder 5-speed drivetrain from a 1980 Mercedes. Early results showed 29 MPG, where previously the van would do at best, 19 to 22 MPG, and 16 while towing.
By JB3 - 69 replies
In forum: EcoModding Central

Honda Insight Tail Extension Project   Honda Insight Tail Extension Project
What happens when you start with one of the most aerodynamic production cars ever sold and add a custom-crafted tail to make it even more efficient? Initial testing showed an improvement in fuel economy of 10.3% at 56 mph, or tentatively around an 18% reduction in aero drag. With this tail and other aero modifications in place, the car is regularly returning 100+ MPG tanks in every day use in warm weather.
By 3-Wheeler - 524 replies
In forum: Aerodynamics

1939 Studebaker + Geo 1.0L drivetrain swap = Studeo   1939 Studebaker + Geo 1.0L drivetrain swap = Studeo
What do you when your Studebaker restoration leaves you with a spare parts car at the same time you also have an extra 1.0L Geo Metro drivetrain on hand? Why, you mount the Geo running gear in the rear of the spare Studebaker, of course. This thread documents the on-going "eco-classic" project.
By StudeChamp - 42 replies
In forum: EcoModding Central


Drive by Wire Throttle tune = ~3 MPG gain & more   Drive by Wire Throttle tune = ~3 MPG gain & more
Ever_green remaps the electronic throttle in his automatic Subaru Impreza with good results: "The factory throttle mapping for my Subaru was always a pain in my butt. Unwanted acceleration, a jerky drive and a fatigued foot were causing problems (when trying to drive efficiently). I really feel sorry for owners who are stuck with crappy factory tuned DBW throttles."
By ever_green - 29 replies
In forum: EcoModding Central

2000 Dodge Neon aero mods   2000 Dodge Neon aero mods
2000neon says: "My mileage started out around 28 mpg (US), and driving technique took me to about 33-34." Since most of his driving is on the highway, he has been experimenting with a number of aerodynamic modifications, and recently achieved a personal best tank of 45.7 mpg. The latest project is an aluminum frame Kammback hinged above the rear glass to permit access to the trunk.
By 2000neon - 126 replies
In forum: Aerodynamics

3 wheel Honda Insight boat tailed EV: Another mystery solved!   3 wheel Honda Insight boat tailed EV: Another mystery solved!
It's an Electric Honda Insight with a Lithium pack and 100 mile range! Thats better than bringing back the the EV1. (And the owner also sometimes pulls a trailer with solar panels for charging.)
By sheepdog 44 - 16 replies
In forum: Fossil Fuel Free

Best Mod to Date - Trans Swap (1997 Civic HX)   Best Mod to Date - Trans Swap (1997 Civic HX)
PAFirefighter's 1997 Honda Civic HX had an SI transmission in it when he got it, and his fuel economy was worse than he expected. Since swapping back to the "taller" stock transmission, fuel economy has gone up significantly, even as winter conditions are setting in.
By PAFirefighter11 - 43 replies
In forum: Success Stories

Project 1977 F100 - New radiator + electric fan!   Project 1977 F100 - New radiator + electric fan!
Australian bobo333 has been fixing up a 1977 Ford pickup with LPG (propane) conversion to use as a shop/tow vehicle, and this project thread documents general repairs as well as efficiency modifications. Construction of an aerodynamic bed cap starts at post #48 and early results are in: his first fill up since adding it was a record best.
By bobo333 - 156 replies
In forum: EcoModding Central

A new record MPG for Ford F150 with aerodynamic cap!   A new record MPG for Ford F150 with aerodynamic cap!
By bondo - 39 replies
In forum: Success Stories

Cruising at 60+ mpg @ 60 mph   Cruising at 60+ mpg @ 60 mph
Continued modding & diligent driving has this 1998 Civic DX coupe close to the "60 @ 60" milestone. "Averaged 64.x mpg over 250 miles, and my speeds varied from 55-60 mph. With a few more good aeromods, maybe my long sought goal of cruising at 60 mph and 60 mpg is almost in reach."
By California98Civic - 46 replies
In forum: Success Stories

Tested: The Most Efficient Way To Accelerate With An Automatic (Toyota Matrix)   Tested: The Most Efficient Way To Accelerate With An Automatic (Toyota Matrix)
mechman600 has been doing some pondering, and some testing: "The question that has plagued me for a while is, what is the most efficient way to accelerate this automatic transmission up to 60 km/h (37 mph)? Slowly? Quickly? Today I finally got around to executing a test using my ScanGauge-II. What I found was quite surprising..."
By mechman600 - 57 replies
In forum: Hypermiling / EcoDriver's Ed

P&G EOC gains 20% mpg on the highway   P&G EOC gains 20% mpg on the highway
PaleMelanesian did some quick testing to see how much fuel he saves with the advanced "pulse and glide" driving technique on the highway vs. driving at the same average speed using cruise control in his 2009 Honda Fit.
By PaleMelanesian - 30 replies
In forum: Success Stories

neighborhood going to the tails (spotted a 2nd gen. Prius with a boattail on my road)   neighborhood going to the tails (spotted a 2nd gen. Prius with a boattail on my road)
Another boat tail project - this one is notable for its cost (about $100) and clever mounting arrangement. And it shows yet again that a proper design on the rear of a 2nd generation Toyota Prius can return a 10-12% improvement in fuel economy at highway speeds.
By Weather Spotter - 37 replies
In forum: Aerodynamics

Under two liters for the first time (That   Under two liters for the first time (That's 121.07 mpg US @ 54 mph avg. speed)
Vekke has accomplished the significant goal of beating 2L/100 km on the open road. Fill up showed 1.94 L/100km @ 86.9 km/h average speed. That is 121.07 mpg (US) at 54 MPH avg speed.
By Vekke - 34 replies
In forum: Success Stories

Getting the most out of lean burn (Honda)   Getting the most out of lean burn (Honda)
Honda engines with lean burn capability can return seriously impressive cruising fuel economy numbers. Greasemonkee has been modding his Civic VX to expand the lean burn "window" and now he's getting lean burn earlier & more often under a wider variety of conditions.
By greasemonkee - 54 replies
In forum: EcoModding Central

Golf cart based electric motorcycle build.   Golf cart based electric motorcycle build.
The Goal: Build an electric motorcycle that can reach 60-65mph for under $1,500.
By Ryland - 104 replies
In forum: Fossil Fuel Free





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