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Old 12-01-2009, 01:32 AM   #18 (permalink)
pgfpro
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Quote:
Originally Posted by jedi_sol View Post
In my old kammback thread, I was told the transition should be 10* to keep attached airflow. After building mine, i ended up with 13*, not sure if that is what affected my negative mpg readings.

BTW: my results: On a 100 mile roundtrip drive with cruise control set to 65mph. Ambient temperature both trips 61*F, filled up at 2:30pm both trips. Using the same gas pump.

without kammback = 45mpg
with kammback = 41mpg

*angry face*
Oh great... I sure hope I see results. As of right now I have $200.00 in material.

I can change the roof angle (its adjustable) from 8 degrees to 15 degrees. But when I get the sides and the under-tray part done and in-close it in I won't be able to change the angle anymore.
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