View Single Post
Old 05-01-2009, 03:04 PM   #31 (permalink)
basjoos
Master EcoModder
 
basjoos's Avatar
 
Join Date: Dec 2007
Location: Upstate SC
Posts: 1,088

Aerocivic - '92 Honda Civic CX
Last 3: 70.54 mpg (US)

AerocivicLB - '92 Honda Civic CX
Team Honda
90 day: 55.14 mpg (US)

Camryglide - '20 Toyota Camry hybrid LE
90 day: 65.83 mpg (US)
Thanks: 16
Thanked 677 Times in 302 Posts
Quote:
Originally Posted by cfg83 View Post
basjoos -



I never thought of this. This is good to know for strategic aero-testing.

CarloSW2
If you want to quantify the potential mileage improvement, you can mount an airspeed indicator pitot tube just ahead of the nose of your car to determine what airspeed your car is experiencing while drafting (you'd need to try it in several locations to get the average airspeed experienced by the front of your car). Then, for example, if the drafting airspeed is half your ground speed (assuming no winds), the mileage you get while drafting at that airspeed is the mileage you would get if you halved your Cd from its current value.

__________________
aerocivic.com
  Reply With Quote