Normally, you don’t have to maintenance the camshafts or valves in a Toyota VVTi engine's lifetime, as they are built to last for a long period. However, if something goes wrong and you need to do it, ...

2023 Toyota Corolla 1.5 VVT-i 92 kW / 123 hp / 125 ps 1.5L Petrol Gasoline Engine 1490 cm3 / 90.9 cui 3-Cylinder 153 Nm / 112 ...

Downsizing and turbocharging. For a car nut, those two words spell trouble. Most automakers, however, think otherwise. Mazda tries to keep the N/A flame alive, and so does Toyota. If you’re living in ...

Since the beginning of hot rodding, gearheads have endeavored to increase the performance of internal combustion engines through the optimization of valve timing. It's been proven time after time that ...

As emissions regulations get tighter, congestion gets worse and consumers demand better fuel consumption from their cars, manufacturers are being forced to delve deep into their engineering kitbag for ...

Decades ago (OK, half a century or more), there was a product advertised in many of the performance magazines called the Varicam. The idea was a set of springs attached to a centrifugal device that ...