Fastroad cam selection for performance

Tuning guide "Fast road cams for everyday use."

Fast road cams for everyday use. Guide

 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 the engine and, after combustion, the exhaust gases to flow out of the cylinder.

Most modern engines have a double overhead cam and configuration with one cannot controlling the intake side of the engine and another controlling the exhaust side.  A single a overhead cam has the lobes arranged in a double pattern to allow them to perform the same function.

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Double overhead cams are more tunable and allow a greater degree of control and accuracy.  The downsides to fitting a fast road cam includes lumpy idling and loss of power lowdown.  Some high performance cams are constructed of a softer material than standard cans and therefore suffer from premature wear.  Motorsport cams will need replacing every few races so for road use we would recommend a fast road cam.

 For maximum flexibility selected can with between the 257°and 285°. These are typically referred to as a stage 1 or fastroad cam. (If you have a high revving engine stick to the upper end of these guidelines). A camshaft will be one of the biggest car tuning mods for a NASP engine. We do not recommend a different cam profile if you polish and port the engine.

When fitting cams always get new followers lifters and springs or at least check these components for wear.


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One Response to “Fast road cams for everyday use.”

  1. salvatore belfiore says:

    I ave 2009 toyota yaris i need high rav cam i need suggestion please e mail me