Lets Talk Dubs Classic The Classic VW podcast

Air-cooling a Volkswagen engine has always been as much science as it is art. For decades, enthusiasts have debated which fan shroud cools the best, what compression ratio is ideal, which cylinder heads run the coolest, and how today's fuels affect engine temperatures. This week on Let's Talk Dubs, we're joined by one of the most respected names in air-cooled Volkswagen engine development—Jake Raby.
Jake shares the incredible story behind the extensive cooling research that changed the way many enthusiasts think about building reliable, high-performance air-cooled engines. Beginning in 2006, Jake embarked on an ambitious cross-country journey in his famous blue "BluebonicPlague" Beetle, outfitted with more than 20 sensors strategically placed throughout the engine. Every mile of the trip generated an enormous amount of real-world data, with over two gigabytes of information recorded to analyze everything from cylinder head temperatures and oil temperatures to airflow characteristics and cooling efficiency under actual driving conditions.
Rather than relying on opinions or bench racing, Jake set out to answer the questions that Volkswagen enthusiasts have argued about for generations—with data.
In this episode, we take a look into:
The evolution of VW cooling system design.

The strengths and weaknesses of the various fan shrouds and cooling kits available today.

Why some cooling systems outperform others in real-world driving.

The relationship between engine displacement, compression ratio, ignition timing, and operating temperatures.

How cylinder head design dramatically affects engine longevity and cooling.

The impact of modern ethanol-blended fuels on air-cooled engines.

Common misconceptions about engine temperature and reliability.

The testing methods Jake developed to remove guesswork from engine building.

Whether you're assembling a mild street engine, building a powerful Type 4, or simply trying to keep your classic Volkswagen running cooler and more reliably, this episode is packed with decades of hard-earned knowledge backed by real-world testing and engineering.
If you've ever wondered what really keeps an air-cooled Volkswagen alive—and what actually works versus what has simply become accepted folklore—this is an episode you won't want to miss.
DTM Shrouds
912 Engine Teardown link
Jake's Road Trip data
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From the day he was brought home from the hospital in his father's split-window Beetle, it seemed Danny Allan was destined for a life surrounded by Volkswagens. As they say, he was born with the "VW Bug."
For decades, Danny has been a familiar and highly respected name in the UK Volkswagen community. Many enthusiasts first discovered him more than 35 years ago when the Mk1 GTI he built himself earned magazine cover status, establishing his reputation as a talented builder with an incredible eye for detail. Since then, he's become one of Britain's most recognized air-cooled Volkswagen enthusiasts, creating an impressive collection of beautifully crafted Beetles, Buses, and Cal-Look inspired cars. Whether he's building award-winning show cars or dependable drivers for close friends, Danny's work is known for its exceptional craftsmanship and attention to detail.
Beyond the garage, Danny has spent years sharing his passion through the pages of VolksWorld magazine as a contributing writer, producing feature stories, technical articles, and in-depth coverage of some of the UK's finest Volkswagens. His influence on the British VW scene extends far beyond his own builds, helping preserve and celebrate the rich history of the hobby.
In this episode, we get into Danny's lifelong journey with Volkswagens, the evolution of the UK VW scene, the stories behind some of his most memorable builds, and what it takes to create cars that continue to inspire enthusiasts around the world. We also discuss his work with VolksWorld magazine, the people who shaped the hobby in Britain, and why the Volkswagen community remains as strong as ever.
If you're a fan of vintage Volkswagens, Essex UK culture, air-cooled performance, or simply love hearing stories from someone who's lived through decades of VW history, this is an episode you won't want to miss.

On this episode, we discuss Bill's Euro-trip 2026. Starting in England, then onto Hessisch Oldendorf in Germany for HO26. Then numerous Shop tours throughout the week before European bug in. We discussed the day by the events plus the all the shops we stopped at and museum tours all VW connec, if you haven't gone, you gotta go totally worth it.
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For over 40 years, Mark Prosser has been proving that you don't have to build a split-window Bus to create something truly unforgettable. While most enthusiasts chase the iconic early buses, Mark has dedicated his career to transforming 1968-and-later Bay Window Buses into some of the coolest, most performance-oriented Volkswagens on the road.
Think slammed stance, serious horsepower, perfectly dialed suspension, and a no-compromise attitude. Mark takes what many people once overlooked and turns it into something that stops people in their tracks. One look at one of his builds, and you may find yourself shopping for a Bay Window before the episode is over.
From routine tune-ups and mild performance upgrades to full, ground-up custom builds, Mark has spent decades perfecting his craft and earning a reputation for creating Bay Window buses that are as exciting to drive as they are to look at.
But this episode isn't just about incredible Volkswagens. It's also the story of a man who walked away from the security of a steady career, a guaranteed retirement, and the safe path in life to pursue the thing he truly loved. That leap of faith led him to build a business creating some of the most inspiring Bay Window buses cruising the streets of London.
Join us as we get into Mark's 40-plus years in the Volkswagen scene, the evolution of Bay Window performance, the challenges of building custom buses, and why he's made it his mission to show the world that Bay Windows deserve just as much respect as their split-window predecessors.
 
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