Subject	I actually think the explanation had to do with how the
Posted by	Haasz32 on March 15, 2013 at 9:25 AM
	This message has been viewed 413 times.
In Reply To	I just read a post about this discussion a week or so ago. posted by Haasz32 on March 14, 2013 at 12:22 PM
Message	divorced style downpipes (even without the separators installed) allow the exhaust gases to be treated similarly to how they would flow under an external wastegate setup. The external wastegate is superior to internal wastegates since the external wastegate keeps the re-directed exhaust gases separated, for a longer period, from the gases flowing through the turbine. This decreases turbulence from the gases mixing near the turbine. Turbulence increases backpressure, which decreases the turbo's ability to spool up quickly. I think the divorced pipes still let the gases remain mostly separated (even without the separators installed) since the gases will take the path of least resistance: and that is for the turbine gases to move down one of the divorced pipes and the wastegate gases to move down the other. There will be some crossflow of the gases, but not as much as a bell mouth style downpipe. The removal of the separator creates enough turbulence to avoid boost creep, while still providing faster spool up than a bell mouth downpipe.
Follow Ups	Consensus on wastegate separators? - WhiTTe Z 12:27:29 03/13/13 I would like to know this also.... (n/m) - nemo1080 (Iowa) 12:56:30 03/13/13 unless your running enough boost to - samsung-Z [Houston] 13:06:11 03/13/13 The pipes are out - WhiTTe Z 13:30:04 03/13/13 Stock turbos, leave them. I can't say I've read any reports - PiotrC70 13:43:34 03/13/13 I'm not worried about boost creep - WhiTTe Z 13:50:20 03/13/13 so you have no complaints with the way the car drives - LJZTT 14:10:18 03/13/13 He's not looking for issues, just possible free gains (n/m) - Red Hawk (CO) 14:15:32 03/13/13 That's where the whole divorced vs super split pipes came in - PiotrC70 15:23:54 03/13/13 agreed, I remember reading that post - Red Hawk (CO) 15:40:30 03/13/13 "whatever is best in terms of spool-up" to me implies that - LJZTT 16:51:09 03/13/13 Well for what it's worth, I'm going from stock pre-cats - WhiTTe Z 21:29:58 03/13/13 ahh, gotcha, it read as if you already installed them - LJZTT 12:18:24 03/14/13 Pepsi Challenge Haha. Good one :) (n/m) - Red Hawk (CO) 10:31:05 03/14/13 Well as you guys know, it's not every day you have - WhiTTe Z 14:26:08 03/13/13 overthinking it dude - LJZTT 16:55:11 03/13/13 Re: overthinking it dude - ryanZ 19:15:03 03/13/13 apples and oranges, you get a C for effort (n/m) - LJZTT 19:54:42 03/13/13 You're right. - WhiTTe Z 21:18:05 03/13/13 we all drive ourselves a little batty sometimes overthinking - LJZTT 12:16:09 03/14/13 Ah men (n/m) - TTZEDHEAD 20:16:38 03/13/13 The dividers are supposed to help spool, at least in theory - ZXoltan 14:24:58 03/13/13 Just send your question to Dupree in an email with a few - 240Z FeO2 14:25:47 03/13/13 Spoke to Greg - WhiTTe Z 21:35:57 03/13/13 Greg's the man. No sense not going straight to the source - 240Z FeO2 21:46:36 03/13/13 Last time I spoke with Seb (a few months ago) he recommended - ForceFedTT (SoCal) 15:40:27 03/13/13 only remove on full breather mods and big turbos - JaffaUK 16:03:47 03/13/13 What he said.... - Hipendicular 21:23:14 03/13/13 Just want to confirm that this is pretty much - WhiTTe Z 21:38:17 03/13/13 I only hearing about this now? I just went big everything - Rogy 23:58:24 03/13/13 See if you have the issue but chances are you will. - PiotrC70 10:02:50 03/14/13 I have heard this as well, I don't believe any one makes the - DarkZide 21:44:12 03/13/13 Primespeed makes them. I believe they are made to order. (n/m) - michaell32 (FL) 09:42:55 03/14/13 I just read a post about this discussion a week or so ago. - Haasz32 12:22:38 03/14/13 I actually think the explanation had to do with how the - Haasz32 09:25:52 03/15/13
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