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Stewart Components Tech Tips |
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Dirt Oval
Gasoline-powered dirt oval track cars require more water
pump and fan speed than a comparable pavement car. This
is due to the lower engine speeds in the corners, and
the increased possibility of clogged grille screens. A
mechanical fan with a proper shroud is a necessity for
these applications.
Street Rod
Nearly all street rods are equipped with an upright
radiator that positions the radiator cap on the pressure
side of the system, thus subjecting the cap to the
pressure generated by the water pump. The highest
pressure rating cap recommended by the manufacturer
should be used. Such applications will still force
coolant past the radiator cap when operated at sustained
high RPM.
Pavement/Oval Racing
Blocking the grille openings reduces aerodynamic drag
and also increases downforce. This has become "standard
procedure" for qualifying. However, the engine may be
damaged by overheating and subsequent heat-soaking after
the engine is turned off. |
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©2004 Stewart Components. All rights reserved. |
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