02-08-2005, 01:47 PM
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CC Member
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Join Date: Nov 2004
Location: OKC,
OK
Cobra Make, Engine: BDR #200 with a KCR 575/550 408
Posts: 82
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Not Ranked
Quote:
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Originally posted by JAM1775 I am sure a 3" straight tube flows more than a 2-2.5" tube....
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Surprisingly, (at least to me) this isn't always true. At times, particularly during lower RPM states, having too large a diameter can actually decrease the flow. It has to do with allowing the gases to cool and stagnate potentially increasing the backpressure. There's an interesting article about it here:
http://www.burnsstainless.com/TechAr...ry/theory.html |
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