CFTECH

The A B C oftuning M is for… manifold Inlet and exhaust manifolds play a crucial part in determining the performance of a tuned engine. For best results the manifold arrangements need to be planned alongside the fuel feed and cylinder head set-ups. Inlet manifolds Among the factors to be taken into account to gain maximum efficiency are the distribution of the fuel/air mix between the cylinders (this needs to be as even as possible), the airflow capacity of the manifold (the greater the better) and the speed of the mixture through the ports (fast is good). Exhaust manifolds The aim of the exhaust manifold is to evacuate the exhaust gases from the engine efficiently. This is difficult at higher engine speeds when there is less time between cycles to…

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Classic Ford (Digital) - 1 Issue, April 2025

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