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 The Read For SpeedSuperCar NedHeadsRolling Thunderz EnginesSpeed SuppliesPower SystemsAbout Rolling Thunderz
THE READ FOR SPEED by Ned Erkman
CHAPTER 3


Intake and Exhaust Valves

The intake and exhaust valves open and close to allow airflow to enter and exit the engine. The size and shape of intake and exhaust valves have a significant impact on airflow and power production. In addition, the valve seat angles in the valve job and valve angles on the valves also have a very significant impact on airflow and engine performance.

Technically, air and fuel cannot flow straight from the intake port directly into the cylinder, and the exhaust gases cannot flow straight out from the cylinder directly into the exhaust port. Fundamentally, air, fuel and exhaust must move around the valve to get in and out of the cylinder. The effective and efficient movement of air around the valves is what promotes better airflow and improves power and performance.

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Ned Erkman
Author of The Read for Speed

Copyright 2005 The Read For Speed. All Rights Reserved.
Reproduction in whole or in part without expressed written permission from the author
is strictly prohibited.


Power Of Knowledge
Principle Power
Performance Power of Cylinderheads
Basic Functions
Power Production Science
Intake and Exhaust Valves
Port Shape versus Port Volume
Proper Cylinder Head Modifications
Improper Cylinder Head Modifications
Cylinder Head Flow Rates
Cylinder Head Power Production
Intake Manifold Power Production
Camshaft Power Production
Mathmatical Formulas
Engine Development

Call 416 988-0018 or e-Mail Ned Erkman

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