Drove the Ecomodded civic to a drag racing event

[turbovr41991]

Probably alot of use dont want to ruin a bumper by drilling holes in it either. I wonder what the net effect of removing the bumper completely or cutting out a larger area of it to make it more aerodynamic?

[02ws6]

You could just tape on a nose cone temporarily.. Thats what I plan to do with the CRX anyway.

Here's an example:

Modified Honda CRX HF Scores 118 MPG in Fuel Economy Run

[turbovr41991]

That is really impressive stats from a nose cone. I will have to look into altering my stock bumper conver in some way to get better results.

[svt98t]

Originally Posted by turbovr41991

One areo mod I do not see on here yet are 6-10 large 3 to 4 inch holes being drilled in the rear bumper cover. I know in our world having a full belly pan and or boat tail is ideal, but this might be benifitial too. I was told the rear bumper to many cars act as a parachute, traps air, and creates drag. I would guess it is a cheap way to let air escape or flow through the rear bumper.

We have this issue with the Panther platform vehicles ( Ford Crown Victoria, Grand Marquis, Town Car). We call it "balooning". The bumpers on these cars are quite large and they do collect air at highway speeds. Many people have done bumper tucks, or, like I did, install a plastic cover that practically eliminates most of the balooning.
Most cop cars/ taxis don't have this done. If you're behind one on the highway, check to see if it's lifted up.

-ryan s.