DrMayf, Steve L asked me the same question. I mentioned it briefly in
the article, when I lowered the plastic part of the air dam.
I did measure the recirculation of the air from the radiator, in stock
form, with the air dam with no plastic part, with a short 2" plastic
part, and with the final 4" plastic part.
The added depth, or distance to the ground, was made after I tried the
incent smoke at each phase. The recirculation occurred on all other
designs at idle, except with the 4" plastic part or scrapper.
Larry
DrMayf wrote:
>
> Hey, great looking part! i was curious, however about the air recirculation
> without it. I noticed that Larry tried the "incense" smoke to track the
> airflow pattern after the air dam was installed. Was that done before
> installation to validate the recirculation premise? THis would be a good
> data point to have. If I just had the smoke.....and my battery charged....
>
> mayf, the red necked ignorant desert rat in Pahrump (no, haven't done much
> on the world's fastest SUnbeam so far this year...).
> ----- Original Message -----
> From: "Steve Laifman" <SLaifman@SoCal.rr.com>
> To: "Tiger's Den" <tigers@autox.team.net>; "'Alpine's Peak'"
> <alpines@autox.team.net>
> Cc: "Paulick, Larry" <larry.p@erols.com>
> Sent: Tuesday, May 28, 2002 12:37 PM
> Subject: A Tiger Air Dam - TigersUnited.com
>
> > Tigers and 'Pines,
> >
> > Larry Paulick, our prolific author and hands-on restorer of his Tiger,
> > has contributed another fine article, "A Tiger Air Dam". This neat
> > device is applicable to both Tigers and Alpines, and is a simple job for
> > a handy person.
> >
> > Larry's design mounts in front of the main front suspension cross-member
> > and prevents hot air, from the high pressure zone in the engine
> > compartment, from flowing forward and re-entering the radiator. This
> > aggravates cooling system efficiency, particularly at idle and low
> > speed. It also acts to increase aerodynamic loads downwards at speed,
> > increasing front end grip and preventing any "wing" lift.
> >
> > The Article is released now, contains many detailed photographs, and is
> > located under the subject heading "Technical Tips" using the hot button
> > "Performance Tuning".
> >
> > For direct access to the Performance Tuning menu (his is the last and
> > latest on the list) use:
> >
> > http://www.TigersUnited.com/techtips/ptune.asp
> >
> > Steve
> > --
> > ____________________________
> > Steve Laifman
> > Editor
> > <http://www.TigersUnited.com>
> >
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