5th generation civic hatchback - improving aerodynamics

[steffen707]

There's also a big gain from having the throttle plate open further at a given speed, because it reduces pumping losses from the engine, I'm not sure how to explain that, but this thread has good info on it.
Cold air VS Warm Air Intakes - what's the difference?

[steffen707]

Originally Posted by AndrewJ

I used 2 sheets of 4'x8' 28 gauge galvanized sheet metal. I also ended up using 16-24' of 1"x1/8" steel bar stock for the skeleton.

With paint, caulk, rivets, plexi and lights I'd say it came in at about $150.

I still have a little sorting out to do with the rear taillights/turn-signals, but that shouldn't add more than another $20 to the tab.

Did you weigh all of the additions for the boattail?

[steffen707]

Originally Posted by AndrewJ

Driving back home last night and the damn back plexi blew out agiain. I'm afraid it's going to take a much more permanent method of fastening the next time. I'm thinking a box of pop-rivets ought to hold it on pretty well....

Try Dzus fasteners. Light weight, secure and can be undone relatively quickly to utilize the hatch.

[SiVX]

This thread and site in general are an amazing plethora of great information. I've read this section over quite a few times and have yet to comment. Andrew your work is amazing as well as the creativity. I'm impressed and would like to congratulate everyone here.
*To making a difference*