The best universal air dam I have seen was from the 80's FSJ. It was hard rubber and would flex enough to easily bolt on most flat bumpers or core supports. Also had a nice shape that allowed it to maintain shape well. A friend put one on an eagle back in the day and claimed to pickup 1 mpg. I put a small air dam on a Fraud I had. Home made out of thin aluminum stock. It knocked off 10 degrees in cruise temp! I was not interested in mpg back then, so I have not idea as to if it helped that at all. Mark Price Morgantown, WV 26508 1969 AMC Rambler, 4.0L, EFI, T-5 2004 Grand Cherokee Laredo, 4.7L, Quadratrac II "I realize that death is inevitable. I just don't want to be around when it happens!" ----- Original Message ----- From: "Sandwich Maker" <adh@xxxxxxxxxxxxxxxxx> To: amc-list@xxxxxxxxxxxx Sent: Monday, May 4, 2009 3:57:36 PM GMT -05:00 US/Canada Eastern Subject: Re: [AMC-list] mileage " From: tom jennings <tomj@xxxxxxx> " " On Mon, May 4, 2009 at 11:34, Sandwich Maker <adh@xxxxxxxxxxxxxxxxx> wrote: " " " > iirc, on today's cars at highway speeds, the 4 biggest losses are " > aero " > drivetrain/chassis/road friction " > p/s pump " > a/c compressor ps. this is more-or-less in order " Our ramblers aren't so good in that first category! My Classic has 8" ground " clearance (tall custom springs and tall tires). I've always considered a " simple air dam in front to be test-worthy. It would probably help cooling. " If it's a waste of time it's not much time materials. For my use, it would " have to flip up or something when I go camping. Piano hinge and a latch, so " if i do bump a curve it lets go or breaks the latch rather than tear off the " valance. make it from a truck mudflap, and mount it below the radiator crossmember. you can cut it to practially brush the ground. that'll help cooling and be road hazard safe. " Not much else is practical on a station wagon! Imagine what a rear spoiler " would look like.... :-) how about a roof-mounted wing? ________________________________________________________________________ Andrew Hay the genius nature internet rambler is to see what all have seen adh@xxxxxxxxxxxxxxxxx and think what none thought _______________________________________________ AMC-list mailing list AMC-list@xxxxxxxxxxxx http://list.amc-list.com/listinfo.cgi/amc-list-amc-list.com _______________________________________________ AMC-list mailing list AMC-list@xxxxxxxxxxxx http://list.amc-list.com/listinfo.cgi/amc-list-amc-list.com