Ducati V4 Engines Are Different From Everything Else – Here’s Why

Summary by Krater

The video explains why Ducati uses a 70-degree twin-pulse crankshaft angle in its V4 motorcycle engines rather than a standard 0-degree screamer or 180-degree layout. It compares four different V4 crankshaft layouts across power delivery, exhaust scavenging, secondary balance, and sound.

From the video

Answers: Why does Ducati use a 70-degree twin-pulse V4 engine layout?

• V4 motorcycle engine design
• crankshaft angles and layouts
• firing order
• power delivery
• exhaust scavenging
• secondary balance

What it concludes

• A V4 180-degree engine provides the longest duration and smoothest spacing for power delivery.
• A V4 90-degree engine fires all four cylinders within 360 degrees of rotation followed by an equal wait, resulting in poor power delivery.
• A V4 70-degree twin-pulse engine provides better power delivery than a 90-degree V4 by slightly extending cylinder firing intervals.
• A V4 180-degree engine and V4 screamer have the worst secondary balance because their secondary forces cannot be cancelled out with counterweights.
• A V4 90-degree engine and V4 70-degree twin-pulse engine offer good secondary balance because secondary forces cancel each other out.
• The Ducati V4 70 twin-pulse engine achieves the best overall balance of valve-train torque, exhaust scavenging, and engine characteristics.