Page 16 - Combined_73_OCR

has been found that the lift force' at the rear axle must be somewhat

more negative than at the front axle with the amount of differential

force required being a function of the individual car, the driver, and

the car speed.

In evaluating which of the features of the race car 7: were to be
improved, the limitations and constraints imposed by the various stock

car groups throughout the country had to be considered. For exampl (D
NASCAR imposes regulations on vehicle ground clearance specifying a

minimum <0 A " o learance for all sheetmetal and frame members, 5" for the
oil pan and 4” for the exhaust system. However, most stock car groups

do allow the use of non-stock front undernose c n O ilers and rear deck
poilers for lift control. These constraints and others had a major

effect on the final shape of the Daytona.

EFFECTS OF DAYTONA RACE PACKAGE - In developing the Daytona, it

was not practical to improve all of the areas having significant effects

on vehicle axial force, lift and handling. Instead, only those areas

capable O h - h being changed within the stock car rules and without major

structural re-design or without making the car impractical for street

use were considered. This approach resulted in the use of "add-on”

hardware to O lean-up” and improve the car aerodynamically. The

Charger Daytona has been modified in the following way to improve per­

formance and handling through aerodynamics:

1) Extended Streamlined Front End - An 18” low form drag

extension has been mounted on the "loop” bumper mounts

of the standard 1970 Charger.

2) Front Undernose Spoiler - A fixed 5” chord, 51” span

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