Im going to be getting a 3" in/out magnaflow cat. Should it be round or oval?
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Octagon's give the highest flow numbers. The 45º degree welds (360º/8) most closely approximate the natural turbidity vortexes in a gas that's 1) heated to exhaust temperatures and 2) flowing through a 2"-3" pipe.
Less disruption implies a more laminar flow, and subsequently, better flow numbers. You can browse for octagonal cat's here.╓<br />║ Matt M<br />║ <a href=\"http://home.austin.rr.com/morrism/3800/sunset_logo2.jpg\" target=\"_blank\">Down with the Sixxness</a> <br />║ Polo Green 1995 3.8 Camaro<br />║ intake, cat, catback, shocks, 3.42\'s, and 12\'s in the trunk<br />╙
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Originally posted by user1101:
Octagon's give the highest flow numbers. The 45º degree welds (360º/8) most closely approximate the natural turbidity vortexes in a gas that's 1) heated to exhaust temperatures and 2) flowing through a 2"-3" pipe.
Less disruption implies a more laminar flow, and subsequently, better flow numbers. You can browse for octagonal cat's here.Jordan<br />15.09@90.7<br /><a href=\"http://www.fullthrottlev6.com/forums/vbgarage.php?do=view&id=21\" target=\"_blank\"><b>1995 Camaro 3.4 M5</b></a>
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Originally posted by MrCoffee:
then why arent guns octagonal shaped? They're round for a reason. Thats obvious.
Second, you can't exactly rifle an octagonal barrel. Since the bullet can't turn, there's no way to spin it.
Third of all, what part of "2-3 inch pipe" didn't you understand? How does that apply to guns?
Fourth of all, What part of "exhaust gas temperatures" didn't you understand? Exhaust gas temperature for a gasoline 4-cyle engine run around 500-900ºF. The Potassium nitrate in black powder has a decomposition temperature of 400ºF.
Fifth of all, you're an idiot. I know I already said that, but it's worth repeating.
[ August 07, 2004, 11:11 AM: Message edited by: user1101 ]╓<br />║ Matt M<br />║ <a href=\"http://home.austin.rr.com/morrism/3800/sunset_logo2.jpg\" target=\"_blank\">Down with the Sixxness</a> <br />║ Polo Green 1995 3.8 Camaro<br />║ intake, cat, catback, shocks, 3.42\'s, and 12\'s in the trunk<br />╙
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