Larry Perkins talks through the legendary Perkins Engineering slide manifold for Holden's 304 V8 race engine. Pic: YouTube / Perkins Engineering

THE latest episode on the Perkins Engineering YouTube channel runs through one of the key engine developments created by the team in the 1990s.

Inlet manifold freedoms in the latter days of the Group A touring car era allowed the team to ditch the standard ‘twin throttle body’ manifold for a PE-designed ‘slide throttle’ manifold.

The development carried into the ‘five litre touring car’ era in 1993, and was one of the pivotal parts behind Larry Perkins and Gregg Hansford’s popular Bathurst 1000 victory that year.

In the video, Perkins explains how the design came about, illustrates its benefits by pulling apart the prototype, and why they disappeared from Supercars soon after Perkins’ Mount Panorama success.

A reminder, too: the National Motor Racing Museum holds the last remaining stock of our recently released book, Perkins Engineering: The Cars, 1986-2008. Contact them on (02) 6332 1872 to secure a copy.

Watch the full episode in the player below!

V8 Sleuth strives to both preserve and celebrate Australian motorsport’s rich history, from tracking and tracing the race-by-race histories and changing ownership of individual cars, to capturing and retelling the stories of the people who made our sport what it is today.