Page 13 - Victory Driven: Cadillac V-Series sample pages

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CADILLAC’S V-SERIES
Fine Books © Dalton Watson Fi © Dalton Watson Fine Books © Dalton Watson Fine Books 71
© Dalton Watson Fine Books © Dalton Watson Fine Books THESE TWO PAGES: The XLR-V and its V1 cousin, the STS-V, were the
only cars fitted with the Northstar V8 SC (supercharged).
INSET: The (LC3) Northstar V8 SC under the XLR-V’s long hood put out
443 hp/414 lb-ft. Its power delivery was touted as smooth and quiet,
furthering the sophisticated nature of Cadillac’s super roadster.
greatest challenge for GM Powertrain in developing the compact
size of the supercharger-intake module.
Crucial to the module’s overall operation was its induction system.
With credit going to Northstar V8 SC Engineer Roxann Bittner and
Analysis Engineer Anbu Anbarasu, it was designed to induce as
much air into the blower as possible while minimizing whine and
alton Watson Fine Books © Dalton Watson resonance. Noise control was integral to ensuring the Northstar V8
VELOCITY // ThE V1 CTS-V, XLR-V aND STS-V (2004-2009)
SC was as refined as it was powerful.
The unique components of the induction system and their function
included:
A large air intake box mounted over the radiator feeding two
composite tubes that snaked around the supercharger module
and converged into a rear-inlet, single 80 mm throttle body
The Northstar V8 SC was upgraded to handle its forced induction. Its
Each tube incorporated a muffler section to further quiet
block was sand-, rather than die-cast and it employed heavy-duty 9.0:1
intake noise pistons and heat-treated connecting rods.
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