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knock retard

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Old May 28, 2013 | 12:56 PM
  #11  
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I'm fighting false knock on my Suburban, f'n link-arms on the roller lifters are noisy as hell, and I've been told the XE comp grinds for BBCs are noisy grinds also, not to mention the forged pistons, ugh. From what I've found looking around in my research, you can use a brass adapter to turn the sensor 90 degrees, which if your sensors are in the valley is a no-go, or you can double or triple wrap the sensor threads with teflon tape. Whatever you do, if you tighten the sensor too much, it will make it hyper sensitive, and there's no fix other than buying a new one.
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Old May 28, 2013 | 01:04 PM
  #12  
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Knock in idle?

there is another log i took of another truck with a mean cam, and its knocking at idle and everywhere..it is ridiculous, I'm assuming the GEN III have overly sensitive knock sensors? i tuned a nnbs with a nasty cam nd no signs of knock. That is why I am assuming that the sensitivity has to be lowered, but in none of the write ups on hptuners do people ever mention reducing their KS sensitivity when tuning as if they don't get knock when installing a loud cam.

I want to get to the bottom of this because i think timing in the 20s is pretty average for any cammed vehicle, no need to knock.
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Old May 28, 2013 | 01:13 PM
  #13  
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I think I used knock sensor tables from a Z06, or some other LS1 that had a much large cam than my stock one.
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