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Sven7 · 11-16-2012, 06:28 PM

Nose cone may net you less improvement than the Kamm, actually. Block off those holes up front, get the wheels taken care of, then think about the rear end.

BUT BEFORE YOU DO ANY KAMM STUFF make sure you tuft test the rear window. If it has attached flow, as Chaz said, you may not even bother. It will not be ideal, but if it's there it may get you by. Depends how much you like to tinker.

For highway FE, I saw about 25% MPG increase without a boat tail, and 46% increase with one. With all we've mentioned in this thread you may be able to top ~35mpg on the highway at 60mph.

11-16-2012, 06:28 PM	#17 (permalink)
Sven7 Master EcoModder Join Date: Aug 2011 Location: Warren, MI Posts: 2,456 Boo Radley - '65 Ford F100 90 day: 13.28 mpg (US) Thanks: 782 Thanked 669 Times in 411 Posts	Nose cone may net you less improvement than the Kamm, actually. Block off those holes up front, get the wheels taken care of, then think about the rear end. BUT BEFORE YOU DO ANY KAMM STUFF make sure you tuft test the rear window. If it has attached flow, as Chaz said, you may not even bother. It will not be ideal, but if it's there it may get you by. Depends how much you like to tinker. For highway FE, I saw about 25% MPG increase without a boat tail, and 46% increase with one. With all we've mentioned in this thread you may be able to top ~35mpg on the highway at 60mph. __________________ He gave me a dollar. A blood-soaked dollar. I cannot get the spot out but it's okay; It still works in the store Last edited by Sven7; 11-16-2012 at 06:34 PM..