Engineering at Work in Cadillac's Northstar V8

The 1993 Allante is the first Cadillac equipped with General Motors' new 32-valve Northstar engine. The 4.6 Northstar engine is the product of an intensive, 4-year development process. The result is a 90 degree V8 engine that delivers a peak output of 290 hp at 5,600 rpm and 290 lb-ft of torque...

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Bibliographic Details
Published in:Machine design 1992-06, Vol.64 (11), p.30-30
Main Author: Chalsma, Jennifer K
Format: Magazinearticle
Language:English
Subjects:
Aluminum
Automobile industry
Case studies
Design
Engines
Product design
Product introduction
Online Access:Get full text
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Summary:The 1993 Allante is the first Cadillac equipped with General Motors' new 32-valve Northstar engine. The 4.6 Northstar engine is the product of an intensive, 4-year development process. The result is a 90 degree V8 engine that delivers a peak output of 290 hp at 5,600 rpm and 290 lb-ft of torque at 4,400 rpm, powering the Allante from zero to 60 mph in 6.9 seconds and to a top speed of 150 mph. The Northstar engine requires no maintenance for 100,000 miles, except for fluids and filters, and it is so quiet that designers had to install an interlock that prevents a driver from inadvertently turning the starter when the engine is running. The engine block is a 3-piece assembly consisting of the upper cylinder block, lower crankcase with integral main bearing caps, and oil manifold plate. The 4T80-E transmission is electronically controlled for increased reliability and smooth shifting. It does not use a throttle valve cable, vacuum modulator, or governor.
ISSN:0024-9114
1944-9577