Then there's the Volvo that the two fellas from Tennessee run at Maxton --
sorry, can't remember their names, but they're the ones that got the grenade
award at the last Maxton meet --- for the most dramatic motor blowup of the
previous race.
Anyway, they've got two Volvo front bumpers on the car -- one in normal
location, the other bolted to the bottom of the first one to act as an air
dam. Sorta "double-vision" if you'd like. I wonder if they could offer
some results from their experiments. I don't know if they've tried to
quantify the system by "with" and "without" back-to-back runs, or whatever.
Oh, yeah -- there's a sbc sitting in the engine room and license plates on
the car. So: if you see a grey/black Volvo next to you at the stop light,
and there's a maniacal grin on the bewhiskered face of the driver --- sit
back when the light goes green. You ain't likely to get to the next light
first, no matter what air dam you've got on your street-legal vehicle.
Jon #436 1350 M/PS/G
Marquette, Michigan
(that's way up north)
-----Original Message-----
From: owner-land-speed@autox.team.net
[m:
<< Aids to reducing the shear stress are the use of air dams in the front to
keep the air from under the car (danger here also, because you can add more
dam than is needed thusly raising the drag!) and installing a smooth pan
to
eliminate the flow around the pieces under the vehicle.
>>
Mayf I don't even pretend to know anything about drag but I have always
wondered if some of the air dams do more harm than good. A boat racer I knew
had a fiberglass shop and made a nice piece to go under the front of his
Winnabago motor home this was back in the early 1970 when they looked like a
box. The next time I saw him he had it off and I asked why. He said he lost
about 1mile per gallon in gas mileage with the fiberglass piece. When you go
from about 7mpg to 6mpg this amounts to something. Larry Mac
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