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  • Gas flowing a head

    Gas flowing a head Many things go on in the head of an engine. Primarily the air coming into the engine flows through the head and into the cylinder via an open inlet valve. The air moving into an engine is travelling at high speed and any turbulence caused can substantially alter the flow of […]

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    Induction kits & cone filters

    Like all of us, car engines need to breathe. They use an air fuel mixture which has to be precisely balanced into what is referred to as an air to fuel ratio or AFR. For petrol engines 14.5:1 is the petrol cruising AFR but under load the engine needs more fuel, with typically around a 13:1 AFR. In […]

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    Fast Road Cams Sports Camshafts

    What is the camshaft, what does it do and how can it be modified. The camshaft is located at the top of an engine. Is is a long shaft with a series of lobes along it and it rotates relative to engine speed. The lobes push close the valves in the head and allow the […]


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    Nitrous Injection Kits

    Nitrous has many names, the most popular is NoS which is actually a brand. Dinitrous Monoxide is the chemical name but for the purpose of this article we shall refer to it as nitrous. We will explore how it works and the various setup options available and see what this does for performance.


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    Cold Air Vents And Cai Kits

    You may have noticed that your car feels much more powerful on cold mornings than it does in the middle of summer.  This is due to the effects of air temperature.  It is a simple fact that cold air carriers are more oxygen and warmer air. An intake vent will help to address this problem, and […]


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    Aftermarket Superchargers

    A supercharger compresses the intake air effectively forcing more air into the engine. More air means you have more oxygen and when this is matched to more fuel you will benefit from more power. There are a number of benefits to superchargers compared to turbos, but there are also some drawbacks. We aim to provide […]


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    What Is Port Matching An Engine

    The ports on the engine allow the air into the engine and the exhaust gases out. There are typically 2 per cylinder, an inlet and an exhaust. The inlets or ports are joined to the manifold or headers via a gasket. Whenever you join two surfaces there is typically a step or at the very […]


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    Fast Road Cams For Everyday Use

     The camshaft is located at the top of the engine and looks like a metal bar with egg shaped lobes on it.  The shape and size of the lobe determines the amount of time that the heads valves are open, and the amount they are open. The valves allow the mixture of fuel and air into […]


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    Ceramic Exhaust Coatings

    Ceramic exhaust coatings are gaining popularity with performance car tuners. We will take a look at why so many people are getting ceramic coatings applied to their exhausts. In very general terms cooler air means greater potential engine power. We can assert this because it follows that the cooler the under bonnet temperature is the cooler the air […]


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    Blow Off Valves Or Dump Valves

    In a turbo engine the pressures build up as air is compressed and forced into the engine. The turbo is driven by the exhaust gases so the faster the engine goes the more air you get forced into the engine. This is fine until you lift off the accelerator. You engine speed does not instantly […]


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    Performance Intercoolers

    We all know that cold Air carries more oxygen that warmer air. You may have noticed that when air is compressed it gets warmer. If you feel the connecting hose on the footpump as you put air into the tire you would notice that a substantial amount of heat can be generated. In a forced […]


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    Uprated Fuelling

    One thing a performance tuner needs to take into account is the importance of the air to fuel mixture. If this is too lean or too rich the engine power will be reduced and this also impacts upon the reliability of the engine. The more power you are extracting from an engine the greater is […]


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    Performance Valve Springs

    The valve springs pull the valves up when they are closed thereby sealing the valve. The camshaft pushes the valve open against the spring. As you can imagine this is a high wear high stress component of the engine.  They need to be fitted using a valve spring compressor – any other attempt at installing them […]


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    Remote Turbo Kits

    It can be quite time consuming to add a turbo charger to a NASP engine. The biggest problems include avoiding detonation, making space to join the turbo to the exhaust and sorting out the fueling and mapping. Although still a big job the remote turbo is being hailed as the simple bolt on solution for […]


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    Intake Valve Tips

    The job of the intake valves is to control the flow of air and fuel into the engine, and then released exhaust gases after combustion.  The intake valves have quite a hard life due to the rapid opening and closing, and have a big impact on the performance of the engine. 


    Intake Valve Tips