Subject	Here's how you do it:
Posted by	turtleboy on October 05, 2006 at 2:25 PM
	This message has been viewed 41 times.
In Reply To	how are you getting this math ??? isn't the formula posted by The Devils Z on October 05, 2006 at 02:20 PM
Message	r = radius (pi)r^2 - but you can take out pi since it's on both sides of the equation. 2.5^2 = 6.25 - crosscut area for a single pipe 6.25 * 2 = 12.5 - crosscut are for both pipes 12.5^(1/2) = square root of total crosscut area 12.5^(1/2) = 3.53 Just plug in the other numbers for the other ones ------ Boost your knowledge. My fan club: http://www.twinturbo.net/net/viewmsg.aspx?forum=general&msg_id=1843220 Collage of doom Can you feel the love?
Follow Ups	Exhaust piping diameter size info - interesting info - The Devils Z 13:53:50 10/05/06 More info .. I think this has been said before though - The Devils Z 14:01:30 10/05/06 You mean "take the RWHP # and DIVIDE by 2" ;-) (n/m) - Scotts94z32 14:12:43 10/05/06 Take the rwhp in the article and multiple by 2 ..or - The Devils Z 14:14:40 10/05/06 It's neither... turtleboy has the idea - BigTDogg (MA) 14:22:41 10/05/06 Not true. Their HP "suggestions" are still based off of a - Scotts94z32 14:28:26 10/05/06 I thought he was multiplying pipe dia by 2. I'm going home - BigTDogg (MA) 14:30:32 10/05/06 It's just two different ways of looking at the same thing - turtleboy 14:39:57 10/05/06 lol, you inadvertantly introduced quantum physics... - Kenny 16:20:01 10/05/06 Oopsie. Now Jim will chime in. ;-) (n/m) - Scotts94z32 16:27:40 10/05/06 [chime noise] :D (n/m) - CaliguyPurdue 17:57:11 10/05/06 2.5 dual = 3.53 single ; 3 dual = 4.24 single (n/m) - turtleboy 14:15:34 10/05/06 True (n/m) - Scotts94z32 14:17:56 10/05/06 how are you getting this math ??? isn't the formula - The Devils Z 14:20:27 10/05/06 Area = pi (d/2)^2 (n/m) - Scotts94z32 14:24:15 10/05/06 new maf (n/m) - RSR 14:44:23 10/05/06 Here's how you do it: - turtleboy 14:25:16 10/05/06 Or for a look at a single equation: - turtleboy 14:31:48 10/05/06 thanks ! (n/m) - The Devils Z 14:42:01 10/05/06 I should point out I used the diameter in this particular - turtleboy 22:15:36 10/05/06 That article is a load of crap. - Kenny 14:38:09 10/05/06 But you're wrong about one thing... - BigTDogg (MA) 14:40:56 10/05/06 Some ass is good ;). (n/m) - Kenny 14:42:47 10/05/06 Haha I noticed that two when changing my cats the other - turtleboy 14:43:41 10/05/06 I think that article is based on single exhaust systems - The Devils Z 15:11:19 10/05/06 I think it never specified, thus generalized all exhausts. - Kenny 15:32:00 10/05/06 Wasn't the link to an RSX forum? Hence single bank/exhaust. (n/m) - Scotts94z32 15:37:07 10/05/06 NSX forum "Exhaust Theory from Overboost.com" - Kenny 15:43:49 10/05/06 I think it's safe to assume they are talking about single - turtleboy 15:54:18 10/05/06 Re: I think it's safe to assume they are talking about singl - Kenny 15:59:23 10/05/06 I'll agree with you there. (n/m) - turtleboy 16:19:30 10/05/06 I never said it was a "2 for 1 swap".. don't put words - The Devils Z 17:12:34 10/05/06 "someone with your intelligence should be able to get it" - Kenny 17:23:47 10/05/06 no ..this was your point and your point is proven pointless - The Devils Z 18:15:16 10/05/06 Another reply? - Kenny 08:19:42 10/06/06 If you read the article, the author comments both about - Scotts94z32 16:01:32 10/05/06 I'll go with that. - Kenny 16:10:17 10/05/06 I believe straight DPs would benefit turbo cars over an - turtleboy 17:50:44 10/05/06 I would think the best idea would be to - pallen 15:06:05 10/05/06 Great idea! Now get on it! Changing dp/tp/exh is easy! - Scotts94z32 16:30:02 10/05/06 Does the same concepts apply to downpipe diameter ? - The Devils Z 15:16:46 10/05/06 Pretty much, - zboost(tx) 15:18:54 10/05/06 I wouldn't say "as soon as possible", but I'm sure Dee gets - Scotts94z32 16:26:31 10/05/06 Did you read the rest of my other post? >>> - Scotts94z32 15:38:13 10/05/06 just read it .. that was the setup that I have had for the - The Devils Z 17:19:51 10/05/06 I've always liked the idea of having diameter decrease >> - Arnel 16:36:13 10/05/06 It does seem logical when you think about thermal losses. (n/m) - BigTDogg (MA) 15:24:13 10/06/06 do you ever attempt to understand concepts before - Spee 21:40:43 10/05/06
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