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Old 03-21-2012, 11:39 AM   #7 (permalink)
slowmover
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Join Date: Oct 2009
Location: Fort Worth, Texas
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2004 CTD - '04 DODGE RAM 2500 SLT
Team Cummins
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I've played around a bit with the design, and come up with the suggestion that it's not necessary to have the cap be a perfect arch at the rear. It can approach, say, 80% of an arch, still be round enough, still allow a maximum flow angle of no more than 15%, and narrow the rear face area to around 2 square feet.


Thank you
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