12-11-2009, 07:30 PM
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Senior Club Cobra Member
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Join Date: May 2001
Location: Florence,
AL
Cobra Make, Engine: RCR GT 40 & 1966 Fairlane 390 5 speed
Posts: 4,511
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Not Ranked
Keith Craft told me that a 20% loss was average for Cobras. He had dyno'ed motors and then installed them it Cobras. Then dyno'ed the car.
I think because of the way they are made, sidepipes are the largest contributories to horsepower loss. Some have an 1 7/8" core with a lot of packing. Other have 3" core and little to no packing.
Dwight
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"Happiness Is A Belt-Fed Weapon"
life's goal should be; "to be smarter than inanimate objects"
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