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California98Civic · 06-05-2011, 11:54 AM

This idea comes from a response by aerohead to my spoiler tests (http://ecomodder.com/forum/showthrea...tml#post242653). But I think it needs its own thread since it is not a "Bonneville" spoiler--or even a spoiler.

The current lid mod (see photo) lifts the trunk 2.75-3.0" and keeps or slightly increases its downslope. It extends a "lip" out to the bumper. It is sealed to the oncoming air with duct-tape on the read window and magnets on the sides of the body. It is ugly. Made of coroplast, reused cardboard, black duct tape, reused styrofoam, and a 1/8" steel support rod at the lip's edge to prevent wind from contorting the shape. If it has a good effect, I'll build a better one entirely of coroplast using this prototype's parts as a template for the cuts.

I want to do my test differently than the ABA type. I have a 6 mile stretch of freeway on my regular commute. I want to use it as the test track, recording the data of my commute for a couple weeks. I'll record very carefully by setting up a video camera on a tripod in the former back seat area. The camera would record 7-8mins of video daily. What Ultra Gauge data would be of most interest? I'll put throttle position, trip g/h, MPH and trip ave MPH, InstaMPG and trip average MPG, trip distance. That's six, all the space I have on one window. Substitutions?

BTW, the terrain has two sustained, significant half mile inclines. But I am practiced already at hitting steady throttle positions as I climb them.

06-05-2011, 11:54 AM	#1 (permalink)
California98Civic Cyborg ECU Join Date: Mar 2011 Location: Coastal Southern California Posts: 6,299 Black and Green - '98 Honda Civic DX Coupe Team Honda 90 day: 66.42 mpg (US) Black and Red - '00 Nashbar Custom built eBike 90 day: 3671.43 mpg (US) Thanks: 2,373 Thanked 2,172 Times in 1,469 Posts	Aero trunk lid project This idea comes from a response by aerohead to my spoiler tests (http://ecomodder.com/forum/showthrea...tml#post242653). But I think it needs its own thread since it is not a "Bonneville" spoiler--or even a spoiler. The current lid mod (see photo) lifts the trunk 2.75-3.0" and keeps or slightly increases its downslope. It extends a "lip" out to the bumper. It is sealed to the oncoming air with duct-tape on the read window and magnets on the sides of the body. It is ugly. Made of coroplast, reused cardboard, black duct tape, reused styrofoam, and a 1/8" steel support rod at the lip's edge to prevent wind from contorting the shape. If it has a good effect, I'll build a better one entirely of coroplast using this prototype's parts as a template for the cuts. I want to do my test differently than the ABA type. I have a 6 mile stretch of freeway on my regular commute. I want to use it as the test track, recording the data of my commute for a couple weeks. I'll record very carefully by setting up a video camera on a tripod in the former back seat area. The camera would record 7-8mins of video daily. What Ultra Gauge data would be of most interest? I'll put throttle position, trip g/h, MPH and trip ave MPH, InstaMPG and trip average MPG, trip distance. That's six, all the space I have on one window. Substitutions? BTW, the terrain has two sustained, significant half mile inclines. But I am practiced already at hitting steady throttle positions as I climb them. Attached Thumbnails __________________ See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.