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<h1>Camshafts and Cam Timing</h1>
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<p>
The series 2 and 3 motors all share the same camshaft, however the naturally aspirated motors and supercharged motors have different cam timings set in the cam sprocket.
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<p>
Here is an image of an L67 cam sprocket laid on top of an l36 cam sprocket:
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<p>
From that image you can see that the L67 sprocket has a cam sensor further counter clockwise than the L36 cam sensor.
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<p>
This image shows the difference in where the alignment mark is:
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<p>
From this image you can see that the L67 timing mark is a half a tooth retarded from the L36 timing mark. With the 48 tooth cam sprocket it appears the L67 has about 4 degrees of retard compared to the L36.
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<p>
Each has different part numbers for the timing set and the cam sprocket. However, the crank sprocket is shared between them.
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<p>
In theory, switching to the L67 sprocket will cause the peak power to occur ~200 rpm later than with the L36.
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