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Old 08-16-2008, 09:09 AM   #76
goixiz
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Tried it - there is a diff on my car but im only on TD04 17psi stg2. Like most have tried youll notice it like a parachute unhook at a certain speed, at low speed i did not notice that my grandma driving skills were hindered, if there is a slight resistance i cant feel it but thats a good thing because i would see increase load = build up boost quicker

I plumbed it as a close loop so all metered air is rerouted back into the system - i think that is important and no dirt gets into the crankcase

Ill have pictures this weekend
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Old 08-16-2008, 10:13 AM   #77
goixiz
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Old 08-16-2008, 05:28 PM   #78
live_2race
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I'm sorry but I think that all this modification is doing is pullng more air through the PCV valve. With the opening in the valve cover essentially, what you have with a vented oil cap you're allowing air to enter the crank case and therefore there is more air to be extracted through the PCV valve. I am amlost certain this will screw up some AFR somewhere. Like it was posted before, I would bet that this causes the car to run lean.

Be careful if so....
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Old 08-17-2008, 12:25 AM   #79
goixiz
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Quote:
Originally Posted by live_2race View Post
I'm sorry but I think that all this modification is doing is pullng more air through the PCV valve. With the opening in the valve cover essentially, what you have with a vented oil cap you're allowing air to enter the crank case and therefore there is more air to be extracted through the PCV valve. I am amlost certain this will screw up some AFR somewhere. Like it was posted before, I would bet that this causes the car to run lean.

Be careful if so....
not entirely correct but partially and that's why a closed loop system is the only way to go
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Old 08-17-2008, 12:51 AM   #80
bue car
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a closed circut would seem useless ...

The air releases to the atmosphere, so how would dirt get in ?

My kit uses a metal mesh oil breather cap, i doubt dust will get in my oil.

ii ran this for over 1500 miles, and changed the oil in between, no difference.

This work best ive noticed with octane boost mixed in the gas too. running 95 oct.

And why recirculate the crankcase air? the idea was to release it from the motor

i also have one on my 00 2.5Rs NA motor

Last edited by bue car; 08-17-2008 at 10:07 AM.
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Old 08-17-2008, 09:30 AM   #81
goixiz
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Quote:
Originally Posted by bue car View Post
no closed would be pointless ...

The air releases to the atmosphere, so how would dirt get in ?

My kit uses a metal mesh oil breather cap, i doubt dust will get in my oil.

ii ran this for over 1500 miles, and changed the oil in between, no difference.

This work best ive noticed with octane boost mixed in the gas too. running 95 oct.
not arguing that others wont work - im merely providing info

i connected a fast response pressure transducer and logged the data on a logger. There is more than just pressure from all the ports i connected to
I can also see the trend at idle what the CC, intake, oil filler, my AOS is experiencing. I just wish i can tie into when the spark is triggered so i can fully trend the output.
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Old 08-17-2008, 03:21 PM   #82
flatthump
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Forgot about this thread.

If you end up venting the oil cap, the PCV valve becomes useless. They both lead to the engine case. Plus, the barb on the block for the PCV is 3/4"!! That's huge!

So instead of venting my oil cap through a closed loop system, I chose to remove the PCV valve and vent it through a closed loop system.

Car feels very very good.
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