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Discussion Starter #1
I was woundering i got a shim service done on my head and the clearences are tighter then factory i think like .003 or something of that nature. Will this make the valves a little loader since the clearence is closer and less oil can get in there?
 

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Discussion Starter #2
Bump
 

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Discussion Starter #3
bump
 

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sometimes when you guys run the aggressive cams and a stiffer spring you can hear some noise with contact........... not a bad thing at all, yes, over time there may be more wear than a factory setup, but that is why Nissan does what they do to make the motor last as long as it can while sacrificing some performance......when you increase performance, you often decrease longevity

....but to answer your question......no, when you reduce a distance, such as the shim clearances, you actually reduce the chance of you hearing a sound

put your finger 2 thousandths away from a piece of paper and move it toward it......no sound

increase the distance to 2 inches...........you hear the contact
 
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