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Re: NASCAR Aerodynamics Question

To: "Dick J" <lsr_man@yahoo.com>, "Dave Dahlgren" <ddahlgren@snet.net>,
Subject: Re: NASCAR Aerodynamics Question
From: "John Beckett" <saltracer@servusa.com>
Date: Sun, 11 Jul 2004 19:46:47 -0400
Dick

Part of the spoilers function on a NASCAR stocker is for down force to make
the car handle and the other is to slow it down some, hence the angles used.
The curve is to fit the body lines, Pontiacs were even scalloped to match
the deck lid.

I believe a NASCAR spoiler would be the worst situation for your LSR car,
way too much drag. Remember last year, as Keith removed spoiler he went
progressively faster.

JB


----- Original Message ----- 
From: "Dick J" <lsr_man@yahoo.com>
To: "Dave Dahlgren" <ddahlgren@snet.net>; <land-speed@autox.team.net>
Sent: Saturday, July 10, 2004 3:47 PM
Subject: NASCAR Aerodynamics Question


> I'm sure NASCAR has spent zillions of dollars wind tunnel testing the rear
spoilers on NASCAR racecars.  How much of that spoiler design is for keeping
the car slowed to what NASCAR feels is the safe limit, and how much of it is
designed to keep the rear wheels on the ground and behind the front wheels?
The spoilers seem awfully high and I notice that they are curved in a convex
manner cupping the air over the rear deck. Would that be a good spoiler
design for somebody using a late model car in LSR?  For that matter, when I
look at the profile and shape of the Studebaker from the top of the car
back, if that type of spoiler was to be placed about two feet back from the
base of the window, the contours and aero effect would be almost the same.
Who cares about the "leftover" part of the Stude that would be behind and
under the spoiler?
>
> Dick J
> In East Texas






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