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Old 06-06-2013, 10:29 AM   #4 (permalink)
Cyborg ECU
California98Civic's Avatar
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
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Cardboard Aided Design (diffuser mounting points)

I have a nice pile of cardboard now--including some big sections--and black duct tape for building and testing designs.

I need a little help re: mounting points for a diffuser/undertray. Has anyone done this on a 6th gen Civic that might share ideas for where and how to mount the undertray?

I have read brucepick's thread: But his rear diffuser seems to be curved a bit, and I'd like it flat and adjustable in place, so I anticipate I need some way to suspend the aft edge below the bumper.

In this pic and in some of the other pics attached below, you can see parts of the chassis from which I might mount rails. Any advice?

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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.

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