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New Edge Cobras
Knocking noise
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<blockquote data-quote="ddeem" data-source="post: 13385388" data-attributes="member: 144113"><p>Don't mean to hijack the thread as I have my own on this issue, but I did change to higher compression. I have been told by others that it could be tune related since it is impacted directly by tip-in throttle input at a specific rpm. I do have a Bama tune but it could be a bad part of the throttle curve with the compression.</p><p> </p><p>The tap on the Op video seems like it is much more consistent thru the rpm range. It does sound like either an exhaust leak or the beginning of a rod knock. I would check the oil and cut open the oil filter. I did this and did not have any metal in the filter which helped eliminate the thought of a rod.</p><p> </p><p>Also, couldn't the Op pull one injector at a time to see if it makes any difference to the noise? It did not for me...</p></blockquote><p></p>
[QUOTE="ddeem, post: 13385388, member: 144113"] Don't mean to hijack the thread as I have my own on this issue, but I did change to higher compression. I have been told by others that it could be tune related since it is impacted directly by tip-in throttle input at a specific rpm. I do have a Bama tune but it could be a bad part of the throttle curve with the compression. The tap on the Op video seems like it is much more consistent thru the rpm range. It does sound like either an exhaust leak or the beginning of a rod knock. I would check the oil and cut open the oil filter. I did this and did not have any metal in the filter which helped eliminate the thought of a rod. Also, couldn't the Op pull one injector at a time to see if it makes any difference to the noise? It did not for me... [/QUOTE]
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