Cadillac’s Giant 4-Cylinder Engine Has A New Dual Volute Turbo

Summary by Krater

This video examines the design, engineering features, and performance of General Motors' L3B 2.7-liter turbo inline-four engine, focusing on its dual volute turbocharger, 3-position camshaft, and integration in vehicles like the Chevrolet Silverado and Cadillac CT4-V.

From the video

Answers: How does the GM L3B 2.7L turbo 4-cylinder engine work and what are its engineering features?

• General Motors L3B 2.7L turbo inline-4 engine
• Dual volute turbocharger design
• 3-position camshaft and active fuel management
• Engine displacement and vibration management balance shafts
• Fuel economy comparison between 2.7L turbo and 5.3L V8 engines

What it concludes

• The L3B 2.7L engine is the largest gasoline-powered four-cylinder engine sold in a road car today.
• Dual volute turbochargers allow for complete segregation of engine exhaust pulsations, resulting in better response, low-end torque, and efficiency compared to twin-scroll turbochargers.
• The 2.7L turbo engine achieves peak torque of 90% in approximately 1.93 seconds at 1,500 RPM.