Subject	I'll try...
Posted by	ni[X]it on March 09, 2008 at 9:42 PM
	This message has been viewed 171 times.
In Reply To	but being on the outter pipe would release pressure posted by Alan(NJ) on March 09, 2008 at 09:21 PM
Message	First, the BOV is supposed to help prevent compressor surge, allowing the RPMS of the turbo to stay high, between shifts. So Air goes this way --> Turbo - - [bov] - - Intercooler - - - - - - Intake In the above example, when the throttle bodies close, the air between the closed intake and the BOV have to turn around, and head back towards the turbo... (intake reversion). Anytime you change direction, you increase heat and as energy is lost. The biggest problem is the lost engergy. When the throttle bodies open back up and the BOV closes, the turbo has to fight that reversed air (if you shift fast, like you are supposed to, to take advantage of a BOV), again, losing energy... Turbo - - - - - - - Intercooler - - [bov] - Intake In the above, the air between the turbo and the BOV will always travel in the same direction. Always, you'll never get intake reversion. The distance of travel between the BOV and the Intake is VERY short, and you will have only a slight amount of reversion... That being said, in the stock location is just fine. I shift too slow to yield an appreciable difference.... It really doesnt matter for 99% of use (except GregD and Arnel) where the BOV is located. Mod for a purpose. Petz #3
Follow Ups	Blowoff positioning question - Hurricane 19:37:54 03/09/08 that's it (n/m) - spyhunterTT(nj) 19:39:02 03/09/08 that's how I usually see them (n/m) - MJawn 19:40:08 03/09/08 thats the correct location for bov's (n/m) - apostrophe28 19:41:14 03/09/08 they replace the recirc. valves that are located there (n/m) - Alan(NJ) 20:02:37 03/09/08 Best place, no - but very common (n/m) - spicyZ 20:10:04 03/09/08 best location is up for debate - Alan(NJ) 20:43:59 03/09/08 The top one is most bestest. It prevents intake reversion. - ni[X]it 21:13:00 03/09/08 but being on the outter pipe would release pressure - Alan(NJ) 21:21:45 03/09/08 I was under the assumption... (i know, great intro) - AbsolutZ (OH) 21:36:09 03/09/08 this may be a debate that has no proven answer - Alan(NJ) 21:42:20 03/09/08 Fair enough. - AbsolutZ (OH) 22:44:29 03/09/08 I'll try... - ni[X]it 21:42:25 03/09/08 Before intercooler because - nzryan 00:47:53 03/10/08 Nice Eng bay you got there. (n/m) - Eishozzzz 01:09:51 03/10/08 neither is mine - Alan(NJ) 07:38:08 03/10/08 looks good 2 me (n/m) - nemo1080 21:07:00 03/09/08 Nothing unusual about that. (n/m) - Bernie (NoVA) 23:57:49 03/09/08 thats normal. - Jason300zxTT 08:53:56 03/10/08
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