Full boat tail
Taking the partial Kammback to its logical conclusion, this mod dramatically reduces rear pressure drag and minimizes trailing wake.
Of all aero mods, a full boat tail will probably have the single largest effect on reducing fuel consumption, though it is obviously more difficult to construct (and will result in more heads turned than anything other mod!).
Instructions for mod
Refer to user table for instructions
Please enter your user name and any relevant data in the table
|User Name||Car Make, Model, Year||Cost of Mod||Time to Perform Mod||MPG Before Mod||MPG After Mod||MPG improvement||Instruction Link|
|MetroMPG||Pontiac Firefly 1998 (Geo Metro)||55.93||64.39||15.1%|| Project: Geo Metro boat tail prototype - 15% MPG improvement @ 90 kph / 56 mph |
ABA tests for mod
|brucey||Subaru Outback||35.8||37.7||5.3%||Subaru Outback Prototype Boat Tail Test Results|
|weather spotter||2006 Toyota matrix||~$300||40 hours||~46||~51||~11% 5MPG||full boat tail on a matrix|
|cons||04 Ranger||$300||15 hours||30||???||no tank to tank data yet||AeroRanger (brother to AeroJeep) boat-tail|
Problems / Consequences of mod
Some confused looks by passers by
Flow Field Features and Aerodynamic Drag of Passenger Car <<< Page 25, boat tails