Hmmmmmm. But if you use this method, wouldn't you measure your "line" from the
lowest point on the rear of the body to the lowest point of the nose? And if
you
used this technique, would you consider the lower edge of a rubber dam the
lowest
point of the front or the actual car nose itself?
Ed
Keith Turk wrote:
> Dave and I were chatting about this subject this morning.... ( I was on the
> Road to Memphis Via Tupelo.. and Didn't see Elvis.... so I am suspecting
> these sighting's are a bit misleading )
>
> Anyway I use a Protractor on the rocker panel Ed to set up the Camaro.
>
> set it at 2 degrees or so.... depending on the air bag pressures.... I agree
> with all the previous comments about keeping air out from under the car in
> the first place....
>
> Keith
> ----- Original Message -----
> From: "Nafzger" <nafzger@vtc.net>
> To: "Skip Higginbotham" <saltrat@pro-blend.com>; "Thomas E. Bryant"
> <saltracer@awwwsome.com>; <land-speed@autox.team.net>
> Sent: Tuesday, April 24, 2001 10:01 PM
> Subject: Re: angle of attack
>
> > Skip,
> > I'm noexpert but wouldn't the fence increase the frontal area? Maybe I'm
> > getting confused between a fence and an air dam.
> > Howard
> >
> > ----- Original Message -----
> > From: "Skip Higginbotham" <saltrat@pro-blend.com>
> > To: "Thomas E. Bryant" <saltracer@awwwsome.com>;
> <land-speed@autox.team.net>
> > Sent: Tuesday, April 24, 2001 5:39 PM
> > Subject: Re: angle of attack
> >
> >
> > > I always wondered...why do people rake the car when a fence will do the
> > > same thing (keep air out from under the car) and it doesn't worsen the
> > > "designed in" lift/drag characteristics.
> > > HHHMMMMM?
> > > 90 degrees....Geeezz 74 here in central Texas
> > > Skip H
> > >
> > >
> > >
> > >
> > > At 07:02 PM 4/24/01 , you wrote:
> > > >Ed,
> > > >I don't know if there is a recognized method, but measuring the bottom
> > > >line of the car would seem to be proper.
> > > >
> > > >It is my understanding that the rake has more to do with the air under
> > > >the car than that on top. Under the car the air becomes turbulent and
> > > >needs more room to exit than it did to enter. Of course, the wedge
> > > >effect (as with my car) does give down force to the chassis, from air
> > > >over the top, sometimes more than you may want. I have not measured the
> > > >down force on my car, but I do know that the skirting at the nose of
> the
> > > >car is badly worn from contact with the salt on the course. At rest it
> > > >clears by at least 2 inches. Just some food for thought!
> > > >
> > > >Tom, Redding CA (90 degrees) - #216 D/GCC
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