Quote:
Originally Posted by RobBeck
That Big Tom catch can appears to be the fire!! Good job!! (I want one!!)
But, you need to get that check valve back in there. Its needed as when the intake manifold (post throttle body blade) is lower vacuum than pre-throttle blade... The secondary check valve opens and that one is supposed to close. So in essence you are creating some sort of vacuum leak at idle and ver low loads without that check valve in place. Aside for that, looks amazing.
As for the secondary check valve, it's supposed to close when the post TB blade pressure is higher than the pre-TB blade pressures (ie. Under boost and mild engine loads). At this point the check valve you ommited is to open and is essentially what you have in your setup.
Can anyone locate this secondary valve? It's in the diagrams but I havent had a moment to tear my car down to find it. I have concerns it may need replacement after time, and if it leaks under boost it will cause the turbos to pressurize the crankcase.
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Ok, so you're saying that I should re-install the check valve?
In that case, it's a 5 minute job.
