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How to avoid engine knock and pinging

So what exactly is engine knock and how dangerous is it? What causes engine knock and how can it be avoided?

You may notice a knocking or rattling noise from your engine or a sudden loss of power under full throttle.

Immediately back off the throttle and only use low rpm engine speeds until you can get the engine investigated.

The chances are that you are suffering from a condition known as “engine knock”.

Sports ignition coils and performance coil packs

Lets look at the job of the coil in the spark system and see what it does.

Just as a power transformer converts mains 240 volts into a usable 9 volts for your charger or appliance a coil will increase the voltage.

A car battery/alternator will produce a paltry 12volts, certainly not enough to jump an air gap and create a spark.

An ignition coil raises the voltage in some installations between 20 and up to 40,000 volts and this allows the creation of a spark which can jump the air gap between the plugs.

Limited slip diffs, which LSD is best for handling.

Slip diffs "Time for something DIFFrent" Every car has a slip diff but with a few tweaks you can totally […]

Boost controllers and remaps

Boost controllers
The turbo is driven by the exhaust gases and the faster the exhaust flows the quicker the turbo spins and more air gets forced in to the engine.

If too much air is forced into the engine then it will run lean. This causes an intermittent loss of power and you also risk putting too much pressure on the engine with a surge of power.

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