12-14-2009, 12:46 AM
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Join Date: May 2008
Location: Brisbane,
QLD
Cobra Make, Engine:
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Quote:
Originally Posted by bobcowan
That confuses me a little. I remember the old Dodge cross ram. It had runners about 2.5 feet long. I thought that was to increase top end power. Was it for low end torque?
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The long runners with the carbs above the exhaust manifolds boosted the midrange torque by around 10% at 2800.
It would have made more power as well because it made more torque over the whole useable band.
The point of the exercise was to maximise torque in the 50-80 mph zone.
From:Scientific Design of Exhaust and Intake systems, Smith and Morrison
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Gary
Gold Certified Holden Technician
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