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SN95 Cobras
96 KB Cobra - Surging/Spark Knock Under Hard Acceleration
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<blockquote data-quote="Lzr96Snake" data-source="post: 16186441" data-attributes="member: 116712"><p>I'm having trouble with a spark knock and loss of power under hard acceleration. Seems to surge a little also. Idles fine and runs good during normal driving. Here's the mods in case you can't see my sig:</p><p></p><p>1.5 KB (6 psi)</p><p>IMRC deletes</p><p>42 lb injectors</p><p>255 lph fuel pump</p><p>NGK TR6 plugs gapped to .035</p><p>MSD coils</p><p>relocated IAT</p><p>custom tune using SCT chip</p><p></p><p>Dyno tune was done when I installed the blower in 2013. Haven't had any of this trouble until recently. Haven't tried to pull codes but no check engine light. I have replaced plugs and wires, but problem did not change. I have not tried coils yet but I don't have any spare to swap out. I suspect that may be the problem but I wanted to get everyone's opinion first before I buy another set. I haven't seen my air/fuel lean out on my gauge so I haven't suspected a fuel pressure problem. Any help you guys could give would be greatly appreciated.</p></blockquote><p></p>
[QUOTE="Lzr96Snake, post: 16186441, member: 116712"] I'm having trouble with a spark knock and loss of power under hard acceleration. Seems to surge a little also. Idles fine and runs good during normal driving. Here's the mods in case you can't see my sig: 1.5 KB (6 psi) IMRC deletes 42 lb injectors 255 lph fuel pump NGK TR6 plugs gapped to .035 MSD coils relocated IAT custom tune using SCT chip Dyno tune was done when I installed the blower in 2013. Haven't had any of this trouble until recently. Haven't tried to pull codes but no check engine light. I have replaced plugs and wires, but problem did not change. I have not tried coils yet but I don't have any spare to swap out. I suspect that may be the problem but I wanted to get everyone's opinion first before I buy another set. I haven't seen my air/fuel lean out on my gauge so I haven't suspected a fuel pressure problem. Any help you guys could give would be greatly appreciated. [/QUOTE]
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96 KB Cobra - Surging/Spark Knock Under Hard Acceleration
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