Civic hatchback aerodynamics - Page 20 - Fuelly Forums

Click here to see important news regarding the aCar App

Thread Tools Display Modes
Old 11-08-2007, 01:26 PM   #191
thisisntjared's Avatar
Join Date: Mar 2006
Posts: 1,186
Country: United States
Send a message via AIM to thisisntjared
Originally Posted by Hateful View Post
Not sure how far I'm going to take the aerodynamics on my Cavalier, but I'm sure it will be a lot more than if I hadn't seen this site and the work Basjoos has done.No shortage of imagination here I see. Of Course if I payed 50K for a prius I'd be a little slow about mods too. ( shock therapy is a little out dated anyway )
50k for a prius????

don't waste your time or time will waste you
thisisntjared is offline   Reply With Quote
Old 11-08-2007, 01:46 PM   #192
Registered Member
basjoos's Avatar
Join Date: Mar 2006
Posts: 392
Country: United States
Originally Posted by Mighty Mira View Post
Hi basjoos,

My only questions are in regards to the underside of the boattail - have you tested with and without? With mpg meter or tuft testing? I'm not sure that an angle as extreme as that of the top will work (which it appears like it is, correct me if I'm wrong), because the air filling into the gap on the bottom must come from only the sides, as the bottom is road and not a whole atmospheres worth of air. Which is why you see that most solar cars have a flat bottom.

Like you I am noticing the difference in maintaining speed on coasts, increase in terminal velocity on particular hills, increased apparent power at higher speeds, lower throttle required to maintain speed. And I'm also noticing that I'll be about 100km past where I used to have to fill up.

My car also probably generates more conversation and stares than your average Ferrari. I gather this is the case for you too.
I went with a sharper than optimum angle on the bottom of the boattail for 2 reasons. I have a steep driveway entry angle and didn't want to drag the boattail bottom when entering it. Secondly I didn't want the boattail to extend more than 4 feet beyond the back axel to keep the tail from sticking out too far on the outside when making a sharp turn. If I went with a shallower bottom angle on the boattail, I would have had to extend the tail for another foot or two beyond its present length. The solar cars can get away with a flat bottomed boattail since they typically have very little body height to have to taper down from.

I typically get lots of gawkers and photos taken where ever I drive.

basjoos is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Login inconsistencies mobile vs. PC GeneLeyden Fuelly Web Support and Community News 1 08-08-2008 01:22 AM
EV Smartcar zpiloto Electric and Solar powered 0 07-21-2006 04:48 PM
FE Test after Wheels, Spoilers, Added to HCH II: Pics & Techniques: tigerhonaker Automotive News, Articles and Products 0 07-14-2006 02:03 PM
METRO DISPOSAL XFi General Discussion (Off-Topic) 5 04-10-2006 08:58 PM
google earth MetroMPG Experiments, Modifications and DIY 13 03-14-2006 07:32 AM

» Fuelly iOS Apps
No Threads to Display.
» Fuelly Android Apps
No Threads to Display.
Powered by vBadvanced CMPS v3.2.3

All times are GMT -8. The time now is 08:04 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2022, vBulletin Solutions, Inc.