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Mustang Forums
2011-2014 Mustangs
Engine/Tuning
Cobra Jet Cams or Comp Cams????
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<blockquote data-quote="SmokeGreyHatch" data-source="post: 13362121" data-attributes="member: 45470"><p>The plenum volume, cross section and runner volume are all wrong for a 8k rpm car. A Boss/CJ is 9 inches in runner length, mmr's is 4-5 inches. Way too short; torque loss would be significant. The CJ is as perfect as it gets for this RPM range and limitations of Copperhead. Now with a crank trigger full stand alone, and 9k+ RPM, I could see more potential if the plenum volume was larger. The plenum to port transition is not great either from what I've seen in the MMR.</p></blockquote><p></p>
[QUOTE="SmokeGreyHatch, post: 13362121, member: 45470"] The plenum volume, cross section and runner volume are all wrong for a 8k rpm car. A Boss/CJ is 9 inches in runner length, mmr's is 4-5 inches. Way too short; torque loss would be significant. The CJ is as perfect as it gets for this RPM range and limitations of Copperhead. Now with a crank trigger full stand alone, and 9k+ RPM, I could see more potential if the plenum volume was larger. The plenum to port transition is not great either from what I've seen in the MMR. [/QUOTE]
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2011-2014 Mustangs
Engine/Tuning
Cobra Jet Cams or Comp Cams????
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