Subject	That doesn't make any sense.
Posted by	tonydanza on September 11, 2003 at 11:18 AM
	This message has been viewed 36 times.
In Reply To	empirical data --> posted by genic on September 11, 2003 at 11:00 AM
Message	Water is so much different from air that you can't begin to compare them. What you said would be true with water since it doen't change density as much as air does. You have to realize that the air (in a turbo engine!) comes out of the turbine at a very high temperature. It cools down very fast going down the pipe (feel the end of your exhaust then grab the turbine when it is at full boost). If you have higher temperature air, and you want the same flow velocity, you need to increase the size of the pipe. Just make sure the steps are smooth. Don't worry, I will try to find your empirical data for you.
Follow Ups	2.5 or 3.0 test pipes - robriw3 08:08:44 09/11/03 0.5in is the difference - JC_NS 08:28:04 09/11/03 Get the same size as the rest of your exhaust. (n/m) - Kenny 9 psi 08:29:33 09/11/03 2.5 supports huge amounts of power. (n/m) - BigTDogg 08:34:07 09/11/03 read this...greg dupree's take on this - genic 08:38:45 09/11/03 I agree with most everything except exhaust speed. - JC_NS 08:45:49 09/11/03 thats what greg said. 3 slows it down. 2.5 doesnt - genic 09:31:59 09/11/03 I don't agree with the 900 HP thing. - tonydanza 10:42:09 09/11/03 downpipes first "downpipes own, they own everything" - Scotts94z32 09:19:06 09/11/03 2.5 even if you went twin T88s. (n/m) - KàPPá¹ 09:29:57 09/11/03 Bad advice. - Chip(GinnMotorSports) 10:05:19 09/11/03 Sarcasm. Laugh a little. (n/m) - KàPPá¹ 10:10:04 09/11/03 2.5 x 2 > 3.5 x 1 ...*shrug* (n/m) - genic 10:11:37 09/11/03 Just barely though - U ZCREAM 10:16:46 09/11/03 "yea 2.5" is way more than enough for a Z32" - genic 10:23:21 09/11/03 yeah but to say that dual 2.5" is good for a 1799 hp Z - T0M 11:08:10 09/11/03 If he is using TWIN T88s, surely he would have 2 downpipes - Chip(GinnMotorSports) 11:03:48 09/11/03 dont fight with me...i have a mullet :) - genic 11:07:42 09/11/03 I shouls stop giving advice for "hypotheticals" - Chip(GinnMotorSports) 11:14:06 09/11/03 i want twin t88's on the bird (n/m) - genic 11:24:49 09/11/03 It helps if downpipes are larger than the rest o the exhaust (n/m) - tonydanza 10:43:26 09/11/03 Since the air there is a lot hotter. (n/m) - tonydanza 10:45:28 09/11/03 tell samantha hi and stick to your mid-80's day job (n/m) - genic 10:57:40 09/11/03 Do you have any empirical data to support this? - Kenny 9 psi 10:56:56 09/11/03 empirical data --> - genic 11:00:11 09/11/03 Re: empirical data --> - RobWR14 11:17:03 09/11/03 That doesn't make any sense. - tonydanza 11:18:13 09/11/03 You will create way too much turbulence - Only1Z 16:35:05 09/11/03 Re: You will create way too much turbulence - tonydanza 20:30:31 09/11/03 At the expense of back pressure... - Only1Z 22:15:29 09/11/03 Re: At the expense of back pressure... - tonydanza 10:06:23 09/12/03 use search ---this topic has come up a lot as - Slowninja(Delaware) 09:41:21 09/11/03 Stock turbo's 2.5 ( CFM dependant ) - ZBlacktt 11:57:08 09/11/03 I think you had an answer in mind when you asked this Q... - Boris 18:18:44 09/11/03
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