TIRES + TERRAIN: Automotive Guides, Tools & Industry News

Guides

Volumetric Efficiency in Engine Tuning

Simon Cousins•September 21, 2025
Stylised engine diagram showing pistons and airflow, with text overlay reading Volumetric Efficiency for article cover.

Recent Articles

Side-by-side comparison of an ECU and piggyback tuner with "Remap vs Piggyback" text over a racetrack background.
Guides

ECU Remapping vs Piggyback Tuning: The map or the box?

Simon Cousins•8/11/2025
3D tuning map showing a colour gradient surface from red to blue, labelled “AFR” at the top and featuring a lambda (λ) symbol in the corner, set against a dark, stylised background.
Guides

Air to Fuel Ratio: The Foundation of Engine Tuning

Simon Cousins•8/3/2025
Front three-quarter view of a red BMW Z3 M Roadster with the top down, featuring the iconic BMW M tri-colour stripes in light blue, dark blue, and red. The car is positioned in front of a large stylised “Z3” logo rendered in M colours, with a vintage film grain overlay on a black textured background.
Guides

BMW Z3: The Ultimate Roadster No One Talks About

Simon Cousins•6/1/2025
Side-by-side comparison of a ProCharger centrifugal supercharger (left) and a Magnuson Roots-style positive displacement supercharger (right), showcasing their distinct designs and compressor housings.
Guides

Procharger vs Roots: The Best Supercharger For Your Build

Simon Cousins•5/5/2025
Green engine coolant being poured from a black container into a yellow funnel, against a plain background.
Guides

The Truth About Engine Coolant: It’s More Important Than

Simon Cousins•4/13/2025
Engineer inspecting a Ford-Cosworth Formula 1 V8 engine at the 1990 Hungarian Grand Prix, featuring individual throttle bodies with red velocity stacks and exposed exhaust headers mounted on a stand in the paddock area.
Guides

Race Engine vs Street: Understanding the Differences

Simon Cousins•4/1/2025
A close-up of a chrome Tesla emblem on a glossy white car body.
News

Tesla Kicked Out of Vancouver Auto Show

Simon Cousins•3/20/2025
Classic Porsche 911 Cabriolet refuelling with eFuels, featuring bold E-FUEL text to highlight Porsche’s commitment to synthetic fuel innovation.
Guides

How Sustainable Fuels Can Improve Engine Performance

Simon Cousins•3/13/2025
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