View Single Post
Old 05-28-2020, 12:36 PM   #11 (permalink)
Cyborg ECU
California98Civic's Avatar
Join Date: Mar 2011
Location: Coastal Southern California
Posts: 6,297

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 2,155 Times in 1,463 Posts
Originally Posted by JulianEdgar View Post
Scaled to actual lengths would be most appropriate wouldn’t it?
Originally Posted by bobo333 View Post
"The template" is designed to be scaled to the height of the tallest point iirc, that's the way I used it on my F100 aero canopy and the way I've seen it applied to most other vehicles on this site. ...
Yes, that's the way it has been applied here. Match the zero point on the template with the point of highest roof camber, making adjustments as needed. It has had very good effect nearly all the time, on a variety of vehicles, in a variety of tests but usually testing has been limited to somewhat longterm fuel economy tracking. bobo333's pickup and lots of other pickups on EM have gained fuel economy applying the template to bed covers (sometimes really beautifully built too).

There was also a red Gen1 Insight with an excellent, beautiful red boattail. Yes, Julian, the template was used to improve the aero of YOUR car's already slippery body shape. Wanna do some throttle stop testing? THAT would be cool, given your fabrication abilities and testing opportunities.

There were kamm backs too that applied aspects of the template... you are swimming upstream here Julian in part because many of us have watched template ideas work nearly all the time when applied well. That has certainly been what I have seen these last 9 years.

EDIT: Here is MetroMPG's Insight build, a great thread with images, video, and test results (and a link to the red Insight):


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.

Last edited by California98Civic; 05-28-2020 at 12:49 PM..
  Reply With Quote
The Following 2 Users Say Thank You to California98Civic For This Useful Post:
bobo333 (05-30-2020), freebeard (06-04-2020)