View Single Post
Old 06-03-2015, 10:00 AM   #4 (permalink)
Lean Burn Cruiser!
BabyDiesel's Avatar
Join Date: Dec 2012
Location: Johnston County, NC
Posts: 932

Big Blazin' - '88 Chevrolet K5 Blazer Silverado
90 day: 14.97 mpg (US)

Chili - '00 Honda Insight
Gen-1 Insights
Team Honda
House of Tudor
Team Streamliner
90 day: 72.29 mpg (US)
Thanks: 835
Thanked 489 Times in 309 Posts
Welcome to Ecomodder!

I found that your coefficient of drag is 0.44, which high but about right for a pickup truck.

I'm going to post a picture of a VW pickup to get an idea of what you're working with. vvvv

An air dam will help divert air from going under the truck and somewhat block the tires off from the airflow, at the expense of increased frontal area. The belly pan, while more work, provides greater gains IMO. It smooths out bottom of the vehicle, which is usually very aero-dirty. Built right, it can prevent air from collecting underneath the rear bumper and cancel its "parachute" effect. Using both in conjunction would do nothing but help

On my Escort ZX2, I noticed a big difference in coasting and the amount of throttle needed at speed when I did a front and rear pan. You might can garner some ideas from my Aero thread in my signature. I have reduced aero drag by 18.5% with my mods.

I do not have any information on an aerocap specifically for a Rabbit truck. I suggest checking out some of the members with Toyota trucks in the Aerodynamics section. There is a lot of ideas and improvising in their threads.

Remember, thank a fellow EM'er for a helpful post!!!
I hypermile better in my cowboy boots

Past threads:
ZX2 modding thread
Ecomodder's Top 10: How they do it!
ZX2 Aerodynamics: Shooting for 0.15 Cd
ZX2 coast-down testing for Cd & Crr
  Reply With Quote
The Following User Says Thank You to BabyDiesel For This Useful Post:
Sneakybassturd69 (06-03-2015)