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Old Dec 5, 2003 | 10:16 AM
  #6  
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Karl
Norris Motorsport
 
Joined: May 2003
Posts: 3,437
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From: Derbyshire
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Jim, I dont usually advise on specific jettings because each car is different depending on actuator type and preload.

However as a very basic guide, you must always run a restrictor in the compressor union of the amal of around 2.5mm (or smaller if you require increased boost).

You can then alter the size of bleed restrictor to obtain the desired boost, a small restrictor in the bleed giving the smallest boost rise, where as leaving the bleed union totally unrestricted will give the maximum boost rise. (This is the same effect as unscrewing a bleed valve further, i.e. we make the bleed larger)
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