Subject	Is any part of the reroute under engine vacuum?
Posted by	AzHeat on February 16, 2007 at 11:19 AM
	This message has been viewed 152 times.
In Reply To	His engine was out of the car and being worked on posted by Woody75 (Denver) on February 16, 2007 at 11:09 AM
Message	I ask this because, crank case pressure goes up a lot under boost. I was watching an old MKIII Supra turbo car on the dyno on time that had one of those K&N filter for valve cover breathers. When the boost came on, a lot of crank case vapor dumped out like fog. A lot of domestic racer use an external vacuum pump to ventilate the crank case because there is pumping loses from the pressure on the back side of the piston. Also oil will less likely pool in the valve covers if the crank case is under vacuum. I am going to hook mine up so they are always under vacuum like the stock set up. The only difference is it will be filtered more through the catch can.
Follow Ups	Shots of my new Engine Bay & Oil Catch Can Set-up - Mike(La Canada) 00:47:47 02/16/07 What??? You didn't powdercoat it cobalt? Waste of Post! (n/m) - Coz@CZP 00:51:57 02/16/07 You mean the intake mani? Wrinkle Black is da shieat (n/m) - Mike(La Canada) 00:59:11 02/16/07 Quick question... - DaRealDefaulTT 01:07:06 02/16/07 It's Welded, we have them available ;) (n/m) - Coz@CZP 01:08:12 02/16/07 What are they called so I can email you! - DaRealDefaulTT 09:58:13 02/16/07 Nice but could you tell us how you set the oil catch tank? - bubuche 01:29:33 02/16/07 Looks great. Nice use of the smaller battery for the can. (n/m) - SeedyROM 03:10:03 02/16/07 Great Pics Mike. - ChazZ 03:32:07 02/16/07 nice, too bad that battery sucks :-( - myzislow 03:33:41 02/16/07 I thought there was a better configuration - SniPer (SR-71) 07:13:31 02/16/07 I don't know Mike's reasons, but here are mine... - spyhunterTT(nj) 08:21:24 02/16/07 Catch can itself costs more than the reroute parts :) - Woody75 (Denver) 08:42:46 02/16/07 agreed (n/m) - Guapo 09:39:13 02/16/07 is this only done to prevent smoking in hard turns - ZEngineer 09:49:16 02/16/07 The reasoning is for hard turns, but it's not just - Guapo 10:02:43 02/16/07 Yeah, it does wonders to the overall octane rating. (n/m) - Scotts94z32 10:09:58 02/16/07 wouldn't any oil residue be burned or expelled - ZEngineer 10:19:39 02/16/07 all the oil doesnt go in on just one stroke. (n/m) - AntiHero 10:25:41 02/16/07 you're right. I can visualize it now, accumulating in the - ZEngineer 10:36:36 02/16/07 That is why you run a filterd PVC system (n/m) - AzHeat 10:41:52 02/16/07 that is why you do a reroute (n/m) - Guapo 10:46:24 02/16/07 how much does oil compress? (n/m) - Guapo 10:25:47 02/16/07 enough to bend connecting rods. Gotcha :) (n/m) - ZEngineer 10:29:45 02/16/07 :) (n/m) - Guapo 10:32:30 02/16/07 you won't get enough oil for all that now.. - AntiHero 10:40:57 02/16/07 Liquid changes weight and volume with temperature - AzHeat 11:40:23 02/16/07 "There is less places for the system to leak" - spyhunterTT(nj) 15:48:45 02/16/07 So the catch can is not connected to anything? - Woody75 (Denver) 20:04:23 02/16/07 Catch can? Tsk tsk tsk. - Woody75 (Denver) 08:13:27 02/16/07 Why would the engine need to be out for reroute? (n/m) - AzHeat 10:38:19 02/16/07 It doesn't. Just makes it easier. (n/m) - Guapo 10:49:07 02/16/07 Explain? PVC system is all on top of the engine. - AzHeat 10:54:54 02/16/07 Woody likes to bend hardlines for his reroute. - Guapo 10:57:05 02/16/07 I use hose as well for customers :P (n/m) - Woody75 (Denver) 11:16:59 02/16/07 His engine was out of the car and being worked on - Woody75 (Denver) 11:09:01 02/16/07 Is any part of the reroute under engine vacuum? - AzHeat 11:19:30 02/16/07 Yes, works the same as stock system. (n/m) - Woody75 (Denver) 11:48:08 02/16/07 PCV? (n/m) - JBender 11:24:21 02/16/07 No. They're using 1/2" schedule 40 pipe from Home Depot :-P - Dave N 11:41:06 02/16/07 I thought about making a composite intake manifold out of - AzHeat 12:09:23 02/16/07 I'm not sure what the melting point is. But many OE intake - Dave N 12:17:28 02/16/07 It would be nice is someone on here had the - AzHeat 12:21:33 02/16/07 Sure, but there's a lot of engineering that would need to go - Dave N 12:33:26 02/16/07 and they'd have to sell it for under $650, right? :) (n/m) - ZEngineer 12:37:18 02/16/07 True but better then stock. (n/m) - Spongerider :) 12:14:18 02/16/07 how do you empty the catch can? - spyhunterTT(nj) 08:16:44 02/16/07 does it actually get full? - RedSER13 09:48:42 02/16/07 I've filled mine in a 20 minute track session. (n/m) - sfarrah 09:55:54 02/16/07 psst ... he's talking about catch cans (n/m) - Guapo 12:50:32 02/16/07 Looking nice Mikey. (n/m) - SpeedyZX 09:05:26 02/16/07 pretty stuff~! (n/m) - nemo1080 09:08:38 02/16/07
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