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trikkonceptz · 11-16-2008, 11:34 AM

After being on here so long, I can't help but analyze every vehicle I see pass me on the highway every day.

One thing I have noticed is the genral shape of lip & roof spoilers on many modern vehicles. I have noticed that they do not often follow the flow of the roof line but rather shoot straight out parrallel to the ground or even have and upward curve to them.

Can someone give me the "for dummies" explanation as to why? I would think that these spoilers would be shaped to continue air flow as efficiently as possible. This of course excludes size, because I also feel that many hatch back suv's would benefit from larger roof spoilers to reduce drag.

11-16-2008, 11:34 AM	#1 (permalink)
trikkonceptz Legend in my own mind Join Date: Apr 2008 Location: Homestead, Fl. Posts: 927 Evil Pumpkin - '08 Scion xD RS 1.0 #1633 90 day: 35.45 mpg (US) Silent Silver Killer - '10 Honda Insight EX 90 day: 51.5 mpg (US) Thanks: 2 Thanked 14 Times in 13 Posts	Rear spoiler designs After being on here so long, I can't help but analyze every vehicle I see pass me on the highway every day. One thing I have noticed is the genral shape of lip & roof spoilers on many modern vehicles. I have noticed that they do not often follow the flow of the roof line but rather shoot straight out parrallel to the ground or even have and upward curve to them. Can someone give me the "for dummies" explanation as to why? I would think that these spoilers would be shaped to continue air flow as efficiently as possible. This of course excludes size, because I also feel that many hatch back suv's would benefit from larger roof spoilers to reduce drag. __________________ Thx NoCO2; "The biggest FE mod you can make is to adjust the nut behind the wheel" I am a precisional instrument of speed and aeromatics If your knees bent in the opposite direction......what would a chair look like???