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Idea on Auto Adjusting Grill Block   Idea on Auto Adjusting Grill Block
Shortie771 has designed an automated variable grill block that uses air pressure against a counterweight to actuate the shutters, rather than electronics or a manual cable actuated approach (two other common methods).
By Shortie771 - 61 replies
In forum: Aerodynamics

probably the coolest aero pizza pan steel wheel covers ever   probably the coolest aero pizza pan steel wheel covers ever
Who says Eco can't look sweet? Here's what one member did with a simple taped off paint pattern on a smooth wheel cover.
By ElPants21 - 8 replies
In forum: Aerodynamics

BMW e36 318 tds - modding thread   BMW e36 318 tds - modding thread
Here's an interesting project: the award for worst drag coefficient in the e36 BMW 3-series range went to the 3-door hatchback. But AndrzejM likes the utility of the diesel BM hatch, so he's addressing the drag problem with the testing (see Kammback tuft testing video on YouTube) and construction of various other mods.
By AndrzejM - 141 replies
In forum: EcoModding Central

2013 Vetter Fuel Economy Challenges   2013 Vetter Fuel Economy Challenges
Motorcycle efficiency enthusiasts take note: Craig Vetter has posted events for May 3 in Carmel, California, followed by an invitational showing at Mike Corbin's Hollister Event, July 5. Next up is the Vetter Challenge at Ohio July 19. Finishing the year is the BIG ONE: Las Vegas to Barstow October 20.
By cvetter - 2 replies
In forum: Motorcycles / Scooters

Project: The AeroFocus   Project: The AeroFocus
EcoModders love boat tails because they know that the biggest opportunity to reduce aerodynamic drag is at the rear of most vehicles. This project shows the streamlining of a 2000 Ford Focus.
By HydroJim - 259 replies
In forum: Aerodynamics

Disabling intake and exhaust valves (going to 8 valves in a 16-v head)   Disabling intake and exhaust valves (going to 8 valves in a 16-v head)
By Gasoline Fumes - 84 replies
In forum: EcoModding Central

Chevrolet "de-modding" the Volt   Chevrolet "de-modding" the Volt's aggressive front air dam on request
Big air dams can reduce drag... but sometimes they're just a drag! It's exceedingly rare to see an automaker going "too far" with OEM efficiency strategies, but it appears some Volt owners aren't happy with the front of their cars scraping the ground onc
By MetroMPG - 22 replies
In forum: Aerodynamics


Streamlining the Civic (2005 Civic EX coupe)   Streamlining the Civic (2005 Civic EX coupe)
Vman455 describes the focus of the modifications to his Civic coupe: "Most of my driving is on the highway, with a 45-mile (one-way) commute three days a week through pancake-flat central Illinois, so I've been focusing on aerodynamic modifications for the open road."
By Vman455 - 47 replies
In forum: Aerodynamics

Tall tire test (taller gearing advantage offset by wider, heavier wheels/tires?)   Tall tire test (taller gearing advantage offset by wider, heavier wheels/tires?)
Taller tires mean reduced cruising RPM, which is good for fuel economy. But what if the taller wheels/tires are also wider (which increases aero drag) and heavier? SentraSE-R tested his Scion Xb to find the answer.
By SentraSE-R - 94 replies
In forum: EcoModding Central

Four consecutive 100mpg+ fillups!!! (Yamaha SR185 streamlined motorcycle)   Four consecutive 100mpg+ fillups!!! (Yamaha SR185 streamlined motorcycle)
bschloop has modified his Yamaha motorcycle to compete in a recent Vetter fuel economy run. He says, "I just filled up the bike today, my longest tank for mileage: 233 miles on 2.09 gallons. That comes to 111 mpg and caps a great week for fuel economy on my streamliner." Also see his build thread: 2012 Vetter Challenger Build (1981 Yamaha SR185 streamliner).
By bschloop - 6 replies
In forum: Success Stories

Linner StrÝmlinet Vogn (Now with 3D model!)   Linner StrÝmlinet Vogn (Now with 3D model!)
EcoModder member Sven7 shares his aerodynamic design exercise: "a production-possible four seat automobile that flaunts its aerodynamics instead of disguising them like the Prius and other contemporary hypermiler vehicles."
By Sven7 - 200 replies
In forum: Aerodynamics

2011 MPG totals and 2012 goals (what are your planned mods & MPG targets?)   2011 MPG totals and 2012 goals (what are your planned mods & MPG targets?)
By Fr3AkAzOiD - 67 replies
In forum: Success Stories

(Project) Boat tail-4 Door Sedan VW Mk2 (1990 Jetta GL)   (Project) Boat tail-4 Door Sedan VW Mk2 (1990 Jetta GL)
JethroBodine introduced his project thusly: "I started building a boat tail on my '90 VW Jetta. The plan is to use the aero templates, both versions, for a true, attached flow boat tail." In the end (pun intended), he achieves fuel economy in the high 50's (MPG) on gasoline, then swaps in a diesel engine and jumps to the high 60's.
By JethroBodine - 120 replies
In forum: EcoModding Central

Lower & Upper Grille Block Ideas (Toyota Echo)   Lower & Upper Grille Block Ideas (Toyota Echo)
A partial grille block is an easy & effective modification. Follow the evolution of a professional-looking upper & lower combination on CigaR007's 2001 Echo.
By CigaR007 - 169 replies
In forum: Aerodynamics

1990 Honda CRX Si D15Z1/HF Trans Swap Project   1990 Honda CRX Si D15Z1/HF Trans Swap Project
Lots of Honda efficiency fans dream of a project like this: taking a lean-burn 1.5L engine from a Civic VX, mating it to the tall-geared transmission from a CRX HF and installing them in a nice & relatively aerodynamic CRX shell. The result can be fantastic cruising fuel economy in a package that looks great & handles well too.
By 02ws6 - 42 replies
In forum: EcoModding Central

CARGaerO t   CARGaerO t'ailer; a hitch-mounted boat tail (Pontiac Vibe)
Tango Charlie explains: "I've decided to make a truncated boat tail for my Vibe, mounted on the hitch-mounted cargo carrier that I made a while back. I priced some aluminum sheets at a nearby RV surplus yard and nearly gave up on the idea until I remembered that Coroplast was only $12 a sheet."
By Tango Charlie - 80 replies
In forum: Aerodynamics

97 Ranger aero project.   97 Ranger aero project.
Old Mechanic has begun an ambitious aeromodding project on a 1997 Ford Ranger 5-speed pickup. He has already surpassed 30 MPG (US) - blasting the truck's 24 MPG EPA highway rating out of the water.
By user removed - 103 replies
In forum: Aerodynamics

SMCC Montreal Economy Run - June 9th, 2012   SMCC Montreal Economy Run - June 9th, 2012
By nerdboy - 141 replies
In forum: Events & Meet-ups

2011 Prius to get full boat tail w/ faired trailer   2011 Prius to get full boat tail w/ faired trailer
The plan is to modify a small utility trailer that reduces overall aerodynamic drag below that of the car alone. The improvement must be enough to more than offset the extra weight and rolling resistance of the trailer. "It'll be fun! Maybe low 60's MPG in straight interstate highway motoring."
By aerohead - 74 replies
In forum: Aerodynamics

MTSU Students Retrofit Hub Motors (Converting an Accord into a plug-in Hybrid)   MTSU Students Retrofit Hub Motors (Converting an Accord into a plug-in Hybrid)
Here's an interesting approach to converting a front wheel drive Honda Accord into a plug-in hybrid by adding hub motors to the existing rear brake drums, plus lithium batteries and electronics in the back of the car. The inventors figure the kit doubled fuel economy, and could be commercialized for around $3000.
By NeilBlanchard - 88 replies
In forum: Hybrids





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