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Modification
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Explanation
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Result
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Replacement Air Filter / Cold Air Intake
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An increase of air flow combined at a cooler temperature will produce a denser air-fuel mixture entering the combustion chamber.
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A potential increase of power and fuel economy will be observed.
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| Cat Back Exhaust / Exhaust Headers |
Just as increasing intake air is important, allowing it to escape has to be just as efficient. Increasing exhaust flow will allow the exhaust gases to be removed from the combustion chamber faster and easier.
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A potential increase in power and fuel economy will be observed. A throatier engine sound will also be achieved.
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| Richer fuel mixture with Advance ignition timing |
Igniting the air-fuel mixture sooner can allow for a more complete burn through out the power stroke. |
The more complete of a fuel burn achieved, the more potential power can be released using less fuel over all. This type of tuning requires precision knowledge of the vehicle's air-fuel timing system.
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Nitrous Oxide Systems / NO2
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As NO2 enters the combustion chamber, the combination of air and fuel along with the combustion (power stroke) process splits the atoms into pure Nitrous and pure Oxygen.
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Pure Oxygen is the main power increasing component of this system. Pure Nitrous has a dual role, first allowing the gas to be stabilized in a non-flamable state before combustion. Second, it has cooling properties needed to help prevent the potential of a severe increases of combustion chamber temperatures. Adequate fuel must be used in order to properly take advantage of an NO2 system. Power gains are controlled by the system nozzle settings and the users own discretion.
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| HEI / High Energy Ignition Systems |
Produces a much higher electric spark for the ignition system. Spark plugs can be gapped wider, sometimes up to .060 or higher. |
A higher electric spark will carry much more heat. The heat can ignite the air-fuel mixture at a higher temperature allowed for a more complete burn and increasing potential power outputs and performance.
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| Camshafts, Valve Angle Jobs, Valve Timing, & Lift Duration |
Everything here helps to improve volumetric efficiency. The better the valve train in an engine, the more air-fuel mixture can be moved in and the more exhaust gases can be moved out.
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A significant way to increase overall power. The higher the flow into a cylinder and the increased flow out of it, the greater potential for increased power gains will be available.
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Compression Ratio
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Increasing the engine compression by means of new pistons, engine deck milling, cylinder head milling, or any combination of the above.
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The increase allows for a tighter squeeze of the air-fuel mixture, which when ignited will burn at an increased rate and expand at an increased rate. These two reactions are the main reasons for potential power increase. |
