Quote:
Originally Posted by NeilBlanchard
Anything that sticks up above the trunk lid will probably add drag. And since the trunk is below the roof, there is not a whole lot of benefit to be had with this sort of mod.
You should modify the front of the car if you want to get an appreciable improvement.
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Respectfully, I'd say "not necessarily" on all three counts!
The biggest aero gains are to be had at the back of the vehicle. Extending your roof line following the curvature aerohead referred to would be a good thing.
And It's possible to use a spoiler that reduces drag, even "below the roof line". Check the Pinto on the EM home page:
Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com
justpassntime, your mini roofline extension ....
...may just play nicely with a lifted or extended decklid. The only way to know "how far" is to tuft test it. Until you see attached flow (tufts streaming aft) on the decklid extension, you haven't gone far enough!
FYI another thread on this subject (different car) can be found here:
http://ecomodder.com/forum/showthrea...ions-4354.html