knock % question

FlashPro questions & answers specific to the 2006-2011 Americas Civic Si
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soxfan143
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knock % question

Post by soxfan143 » Thu Jun 25, 2009 8:58 pm

Hello Hondata. I started a thread on 8th about this as well because I think everyone should have a good understanding of this value. I also would like to know more about reading this. At what knock % value is knock present. I did some logs with the GReddy 650cc base map and saw some knock % well into the 70% area and I did not hear or feel any knock. I did add some timing and did some logs and did hear some very small knocking and saw the % was well above 90%. Now will you only get knock when that value is above 90% or will you get it below there as well? Thanks in advance for any info you can share.

-Mike

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Hondata
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Post by Hondata » Fri Jun 26, 2009 6:58 am

The level depends on the engine speed. At low rpm 10% might be considered knock, at high rpm just over 80% seems to be the threshold. This is how the RSX worked as well.
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aka_si
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Post by aka_si » Sat Jun 27, 2009 11:14 pm

Hondata,
Can you specify the low RMP?

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Hondata
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Post by Hondata » Sun Jun 28, 2009 11:27 am

No, it was a general example.
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