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  2. Cylinder head porting - Wikipedia

    en.wikipedia.org/wiki/Cylinder_head_porting

    Cylinder head porting refers to the process of modifying the intake and exhaust ports of an internal combustion engine to improve their air flow. Cylinder heads, as manufactured, are usually suboptimal for racing applications due to being designed for maximum durability.

  3. Crankcase ventilation system - Wikipedia

    en.wikipedia.org/wiki/Crankcase_ventilation_system

    The intake manifold vacuum, with wide open throttle, is lower in these conditions, which causes the PCV valve to open and the crankcase gases flow to the intake system. [13] The greater flow rate of intake air during these conditions means that a greater quantity of blow-by gases can be added to the intake system without compromising the ...

  4. MAP sensor - Wikipedia

    en.wikipedia.org/wiki/MAP_sensor

    The way they do this is during a deceleration of the vehicle when there is low absolute pressure in the intake manifold (i.e., a high vacuum present in the intake manifold relative to the outside air) the powertrain control module (PCM) will open the EGR valve and then monitor the MAP sensor's values. If the EGR is functioning properly, the ...

  5. Exhaust system - Wikipedia

    en.wikipedia.org/wiki/Exhaust_system

    A header is a manifold specifically designed for performance. [1] During design, engineers create a manifold without regard to weight or cost but instead for optimal flow of the exhaust gases. This design results in a header that is more efficient at scavenging the exhaust from the cylinders. Headers are generally circular steel tubing with ...

  6. Manifold vacuum - Wikipedia

    en.wikipedia.org/wiki/Manifold_vacuum

    Manifold vacuum, or engine vacuum in a petrol engine is the difference in air pressure between the engine's intake manifold and Earth's atmosphere. Manifold vacuum is an effect of a piston's movement on the induction stroke and the airflow through a throttle in the intervening carburetor or throttle body leading to the intake manifold. It is a ...

  7. Chevrolet small-block engine (first- and second-generation)

    en.wikipedia.org/wiki/Chevrolet_small-block...

    In 1967, a new design high-rise cast-aluminum dual-plane intake manifold with larger smoother turn runners was introduced for the Z/28 that the 350 cu in (5.7 L)/370 hp 1970 LT1 also used. Unlike the Corvette, the exhaust manifolds were the more restrictive rear outlet 'log' design to clear the Camaro chassis's front cross-member. It had a ...

  8. Fuel injection - Wikipedia

    en.wikipedia.org/wiki/Fuel_injection

    In a manifold injection system, air and fuel are mixed outside the combustion chamber so that a mixture of air and fuel is sucked into the engine. The main types of manifold injections systems are multi-point injection and single-point injection. These systems use either a continuous injection or an intermittent injection design. [16]

  9. Chevrolet Corvette C8.R - Wikipedia

    en.wikipedia.org/wiki/Chevrolet_Corvette_C8.R

    The Chevrolet Corvette C8.R is a grand tourer racing car built by Pratt Miller and Chevrolet for competition in endurance racing. It serves as the replacement for the Corvette C7.R, using the C8 generation Chevrolet Corvette as a base. Corvette Racing fielded the C8.R in the IMSA SportsCar Championship GT Le Mans (GTLM) class starting with the ...

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