News

Air moves because of a pressure difference, and the exit sets half of it. This treats the engine bay as a plenum, explains what makes an exit work, why it can reverse in traffic, and how underbody pressure sets the reference the whole stack discharges against.

Radiation, conduction and convection need three different countermeasures, and most shielding targets the wrong one. This covers face direction, emissivity decay in service, the gap as the working part, and what wrapping costs a manifold.

Restriction belongs to a flow rate, not to a component. This sets out how to tap a path and read segment by segment, why free revving describes nothing useful, and why a soft hose can close its own area only when the engine is loaded.

A leak does not lose air so much as redirect it, and the redirected air is usually hot and unfiltered. This explains why a visible gap flows less than it looks, why clamping is a compression joint, and how a step defeats an otherwise sound hose joint.

An airbox is a plenum, a silencer and a manifold at once, and each job wants a different shape. This covers how volume buffers a pulsing demand, why inlet and outlet placement decides how much of that volume is used, and what a flush mouth costs.

In a stack, the second core works with air the first one has already heated and slowed. This looks at how order assigns the penalty, why a gap needs a sealed perimeter, and why the exit sets the pressure difference the front end runs on.

An intake runner is a tuned length with mass and spring behind it. This explains the two models that describe it, why a length change rotates the torque curve instead of lifting it, and how hose compliance and housing volume retune the pipe.

The collector is a wave junction that decides how much of each pulse leaves and how much returns up the primary. This piece covers merge angle, firing-order pairing, diffuser recovery and what changes when a turbine replaces the open cone downstream.