Benefits and drawbacks of engine water injection systems

You’ve finished tuning up your engine but you find that at full throttle the engine splutters or stalls. When you get the car on a diagnostic you find that the knock sensor is kicking in to protect the engine.

Engine knock is a condition where the fuel inside the engine ignites prematurely and occurs within an engine running at high compression. (It can also be caused by other factors including low octane/poor quality fuel or hot spots within the engine.) Read More...

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Vents – adding performance with Bonnet vents.

Performance gains are possible with the addition of bonnet vents.

Warm air really does kill performance. This is due to the air intake temperatures being hot and air at high temperatures carries less oxygen.

When driving an engine hard the under bonnet temperatures quickly build up and the engine has no choice but to suck this air in reducing your power. Read More...

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Big valve kits – larger intake valves.

The heads primary job is the mixing of fuel and air and delivering this to the combustion chamber.

Any turbulence or drag can restrict the air flow into the engine starving you of power. So this TorqueCars article will focus on the intake valves and how they can be improved.

The aim of head tuning is both to maximise the amount of air and fuel that gets into the engine, and to improve the mixture. Read More...

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Fuel and fuel additives octane and pressure boost valves.

Choice of fuel becomes more critical in a high compression or turbo engine.

"One of my Pet(rol) hates!"

Fuel: this is regulated by a pressurise valve at the engine end – generally more fuel means more power but you also need more air as well – certainly an induction kit on larger engines and preferably a turbo or supercharger.

If the mixture is too rich a catalyst would be destroyed as unburned fuel enters the catalyst and burns inside it melting the catalytic structure so there is a delicate balance to maintain. … Read More...

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