crankcase pressure head scratcher
09-30-2012, 08:00 PM
#32
Drifting
Thread Starter
Can someone tell me what this is on top of my AOS?
Also where does the connection towards the fire wall goto?
the first picture is from the front looking back,
second is from passenger fender
Also where does the connection towards the fire wall goto?
the first picture is from the front looking back,
second is from passenger fender
09-30-2012, 10:54 PM
#33
Drifting
Thread Starter
sorry -- here is the full photo of the AOS area.
m
m
10-01-2012, 01:29 AM
#36
Drifting
Thread Starter
There is a connection (circuitously) from the return from the intercooler to the 2nd port of the intake.
Same line that goes to the ICV. -- Shown in RED in my previous overlay.
Should the connection under the bracket be a T? At least that is what it looks like at the moment.
mike
Same line that goes to the ICV. -- Shown in RED in my previous overlay.
Should the connection under the bracket be a T? At least that is what it looks like at the moment.
mike
10-01-2012, 01:46 AM
#37
Rennlist Member
I'm trying to follow the discussion/info in this thread because I'm not sure my setup is routed correctly. I'm in the middle of taking my head off and I found somewhat of a mess under my intake. I don't want to take over/confuse this thread but have a couple questions that hopefully will add to the content here...
What exactly does the term 'venturi delete' mean? Are you removing the hard tubing (the 3 hard lines) under the manifold? If not, then what? If I'm running a MBC I can remove the boost control solonoid/valve/whatever completely? Also, where is the thermo valve located? And lastly, the arrow on the idle stabilizer points towards the intake manifold?
What exactly does the term 'venturi delete' mean? Are you removing the hard tubing (the 3 hard lines) under the manifold? If not, then what? If I'm running a MBC I can remove the boost control solonoid/valve/whatever completely? Also, where is the thermo valve located? And lastly, the arrow on the idle stabilizer points towards the intake manifold?
10-01-2012, 02:41 AM
#38
Three Wheelin'
A venturi delete is only applicable to the early cars (unless some PO mucked with your late model), it was intended to keep vacuum built up for the brake booster. Later on it was deemed unnecessary and done away with. The three hard lines (I like calling it the squid) are completely separate: one feeds the CV, one vents excess pressure from the CV back into the intake and the largest hard line is the AOS vent going back to the intake. LR makes replacement silicon hoses that you can use to replace the AOS line and the CV lines go away when you switch to an MBC/EBC, so you can delete the squid if you really want.
To directly answer your question, a venturi delete does away with just that plastic, 3 connector piece in the center (above, and to the upper right of the ICV) of the picture in post #30 of this thread.
The thermovalve is located on the 90* neck on the water fitting at the rear of the head. I'm not sure about the ICV so I'll let someone else field that or I can go check on mine tomorrow morning.
To directly answer your question, a venturi delete does away with just that plastic, 3 connector piece in the center (above, and to the upper right of the ICV) of the picture in post #30 of this thread.
The thermovalve is located on the 90* neck on the water fitting at the rear of the head. I'm not sure about the ICV so I'll let someone else field that or I can go check on mine tomorrow morning.
10-01-2012, 04:00 PM
#39
Addict
Rennlist Member
Rennlist Member
Howdy Mike,
I'd certainly get this ironed out before you go out on the track again: if the pressure is that high you stand a good chance of pushing out a front or rear main seal: that'd suck. Pull your intake & go through all the hoses yet??
Mark (yes, semi-skimming at risk that someone else has stated that already).
I'd certainly get this ironed out before you go out on the track again: if the pressure is that high you stand a good chance of pushing out a front or rear main seal: that'd suck. Pull your intake & go through all the hoses yet??
Mark (yes, semi-skimming at risk that someone else has stated that already).
