Supercharged/Turbocharged The increase in air/fuel pressure above atmospheric pressure in the intake system caused by the action of a supercharger or turbocharger attached to an engine.

crankcase breather clarification

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Old Jul 29, 2007 | 02:12 PM
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crankcase breather clarification

I was just wondering, when stillen designed the charge pipe for the max from MAF to TB, why did they decide to route the crankcase/valve cover breather to the air filter assembly, or why do you guys just put a small filter on there? why cant we just route a hose directly to the charge pipe as a source of air for the breather the way CAI's are setup? does it have anything to do with too much PSI for the crankcase? also why did they setup the smaller vacuum tube to be T'd off the larger vacuum hose on the charge pipe.

this is how my Injen Intake is setup, so i was wondering what are the downsides of doing the same setup on an S/C application? if not any, id prefer this route.



Old Jul 29, 2007 | 02:33 PM
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From: oburg S.C.
You can search their is lot of topics with this on it. Iv been in several threads on this.
Ok point blank when you pressurize the crank case is a bad think and will often with may the motor have blow by witch will make the car smoke
Old Jul 29, 2007 | 02:52 PM
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Cant pressurize the Crank Case. Breather on the front, and the rear is fine since there is the PCV that shuts under boost

-matt
Old Jul 29, 2007 | 03:09 PM
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Originally Posted by 95turbo gxe
You can search their is lot of topics with this on it. Iv been in several threads on this.
Ok point blank when you pressurize the crank case is a bad think and will often with may the motor have blow by witch will make the car smoke
sorry, i did several searches but i didnt come up with anything


Originally Posted by matty
Cant pressurize the Crank Case. Breather on the front, and the rear is fine since there is the PCV that shuts under boost

-matt
thats what i was assuming. how about the smaller 3/16" vacuum hose. cant that be directly attached to the charge pipe rather than T'd off the bigger vacuum hose?
Old Jul 29, 2007 | 03:14 PM
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Sure. That small line is a fresh air line for EVAP I believe

-matt
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