Unusual Services Australia

31/12/2025

For those of you who are interested, this is my latest video. In it I talk about swirl, tumble, and squish. It's an introductory video, that will followed up later by some more in-depth technical videos.

In this video I look at swirl, tumble and squish in the cylinder. I introduce what they are, what they do, and how they affect combustion in both spark ignit...

27/12/2025

Broken drill bit extracticus 😆 🤣 😂
Snapped off as it broke through the bottom of the stud

15/12/2025

For those of you who are interested, this is the first of a series of videos on how cylinder head architecture affects airflow through engines. As the videos progress, they will become more technical

How cylinder head architecture affects airflow, and how that affects camshaft design

10/12/2025

A new video on oil flow through engines. Includes a number of things that many people don't realise

Oil flow through engines. How many horsepower does an oil pump draw? How does bearing surface speed affect lubrication. Some fallacies about oiling system an...