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Old 01-30-2013, 01:33 PM
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cobalt327 cobalt327 is offline
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Some 'generic' engine weights from various sources:

Stude 289- 650#
Buick 430/455- 600#
BBC- 685#
SBC- 575#

Aero drag really eats into the power needed to run fast. Doubling speed takes 4 x the hp, all else being equal. Not to mention if there's insufficient downforce the car can become airborne.

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