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Old 03-22-2002, 11:55 PM   #1 (permalink)
SH Silver
 
Join Date: Feb 2002
Location: Austin, TX
Posts: 226
Car: '96 GS-R
Mods: See my sig!
Nikolai is an unknown quantity at this point
Where to vent crankcase when boosting?

It just occured to me why I'm smelling oil now that the turbo is installed: The hose that vents the crankcase is not connected to anything!! There's not a ventcock for it in my IC piping.

Moreover, an Acura tech came by the garage when we were installing the kit and said that the positive pressure created by the turbo would be terrible for the engine if the crankcase were to see the boost pressure....

Isn't this what a PCV valve is all about? It has the little ball in it that only moves one way, so that vapor can leave the crankcase, but not enter it. What's wrong with rigging one of those up between the crankcase and throttle body? I'm sure that this is something totally juvenile, but I have to ask somewhere!

Thanks,
Nick
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"My mom says I'm not an engineer yet because they won't let me drive the train........screw the train, give me a Honda!"

White 1996 Integra GS-R w/black leather

Engine: (De-turbo'd)... Runs great, cold A/C, passes inspection, great gas mileage, couldn't be happier!

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Old 03-23-2002, 06:53 AM   #2 (permalink)
SH Silver
 
Join Date: Mar 2002
Location: POMONA FOOL!
Posts: 257
Car: 1999 Eclipse GS-T Silver
Mods: Personal best of 12.93 at 111mph on radials generally low 13's tho and should pull mid 12's on slicks.
Low Flying GS-T is an unknown quantity at this point
The problem I could see you having is under boost you are defeating the purpose of the line which is to relave the crankcase of hot gases boost will just force it back in. And also under vacum you run the risk of sucking oil back down the intake pipe towards the turbo. I have mine routed back into the intake before the turbo with an inline filter like this one http://www.geocities.com/mospeed9844/engine.html then go to the bottom under catch can.
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Formaly "H2O" from PH.com an formally owned a 92 Accord EX I/E and 17's and 95 Accord EX coupe I/H/E full ignition and VAFC with too many other mods to lists
99' Eclipse GS-T
Forced Performance Big T-28 turbo ported, ported exhaust manifold, ported O2 sensor housing, RevHard Big Front mount Intercooler (polished), Intake filter kit, 2.5 inch turbo inlet pipe, N1 3 inch exhaust system, 2.5 inch downpipe, Greddy profec B boost controller set at only 15psi, Greddy type S Blow off vavle, Greddy upper Intercooler pipe, 3000GT VR4 fuel pump, Accel sparkplug wires, Greddy turbo timer, Pocket logger and Palm m105 for scanning. Big System three 12's, DVD, TV, big amps yada yada!!!
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