My catch can routing ok?
07-12-2009, 04:22 PM
#261
I have only just back into town myself 405HP_Z06. To answer your questions.
1. There is no PCV in the whole system. The passenger side is a straight outlet.
2. Yes is all tee'd together. everything. Valley Port, Passenger valve cover, etc.
3. Plenum as such, no, as soon as you remove the throttle body you can see the two 'screw' shafts in the blower".
4. Will try to get some in the light tomorrow.
At this stage I am thinking of running the valley port and the passenger valve cover to the can and back to the intake and fresh air intake to the drivers valve cover.
Hope to hear your thoughts.
1. There is no PCV in the whole system. The passenger side is a straight outlet.
2. Yes is all tee'd together. everything. Valley Port, Passenger valve cover, etc.
3. Plenum as such, no, as soon as you remove the throttle body you can see the two 'screw' shafts in the blower".
4. Will try to get some in the light tomorrow.
At this stage I am thinking of running the valley port and the passenger valve cover to the can and back to the intake and fresh air intake to the drivers valve cover.
Hope to hear your thoughts.
Let me know on your config.
I'm posting this as someone may be able to use the same PCV configuration:
07-14-2009, 07:00 AM
#263
Currently, the only true one-way valve that I know works, does not limit flow, is compact for easy installation, and has a low cracking pressure (important) is the Krank Vent by ET Performance. They are expensive, but they work.
I have another much lower cost, equal performance (on paper), and very promising candidate but they are on a 7 week back order. Once I verify its functionality I'll be ready to recommend. I don't want anyone to waste their time and money until I know it works.
HTH,
07-15-2009, 08:38 PM
#264
So I have one simple question. Would I be better off plugging the back 2 ports on my valve covers or routing them and teeing into the catchcan like the diagram above?? 
Also would it be better to put the pcv valve after the valeycover before the catchcan or between the catchcan and the intake? Two simple questions I guess! Man this thread is the chitznitz!!
Also would it be better to put the pcv valve after the valeycover before the catchcan or between the catchcan and the intake? Two simple questions I guess! Man this thread is the chitznitz!! Last edited by ramairws6; 07-15-2009 at 08:41 PM. Reason: adding
07-15-2009, 09:33 PM
#265
So I have one simple question. Would I be better off plugging the back 2 ports on my valve covers or routing them and teeing into the catchcan like the diagram above?? Also would it be better to put the pcv valve after the valeycover before the catchcan or between the catchcan and the intake? Two simple questions I guess! Man this thread is the chitznitz!!
Also would it be better to put the pcv valve after the valeycover before the catchcan or between the catchcan and the intake? Two simple questions I guess! Man this thread is the chitznitz!!- If you have ports on the rear of both valve covers, connect them together across the rear.
- This one is conditional:
- For a naturally aspirated application, you can put the PCV valve on either side.
- For a forced induction application with a high quality one-way valve between the intake and catch can, the PCV valve can be on either side; without a high quality one-way valve, the PCV valve MUST be between the intake manifold and catch can to minimize pressurization of the catch can. A stock PCV valve will not hold much boost without leaking so the can will pressurize equal to the leak rate of the PCV valve.
Last edited by 405HP_Z06; 07-16-2009 at 06:38 AM.
07-15-2009, 10:10 PM
#268
Originally Posted by ramairws6
I also talked to Tracey about this pcv deal and he thinks I should put a breather on my valve cover. Why don't you agree with this 405HP??
08-27-2009, 01:38 PM
#272
I've gone through this whole thread and it has helped out a lot! Thanks.
But I any still confused as to why I see a lot of high HP guys, including a lot of sponsors here, run a vented catch can from the dirty sides (with no return line)? It doesn't seem like it would really do anything except catch oil if it was forced into it. From my understanding it wouldn't vent out good and can pull back vapors under boost... Yet when I talk to them they say its better since no oil can reach the manifold...
To add to my question. Here is a thread discussing the use of a Vented catch can. According to this thread, which IMO seems to be the right way, there way is quite wrong.
https://ls1tech.com/forums/forced-in...rs-inside.html
But I any still confused as to why I see a lot of high HP guys, including a lot of sponsors here, run a vented catch can from the dirty sides (with no return line)? It doesn't seem like it would really do anything except catch oil if it was forced into it. From my understanding it wouldn't vent out good and can pull back vapors under boost... Yet when I talk to them they say its better since no oil can reach the manifold...
To add to my question. Here is a thread discussing the use of a Vented catch can. According to this thread, which IMO seems to be the right way, there way is quite wrong.
The reason for the vented catch can is to exhaust the crank case pressure, so the sealed unit wouldn't be helping. I and many others pushed seals out of the engine with the stock pcv system and its not fun!!! I dont see the need for 2 cans, I vented both sides to one can and haven't had any seals pushing out or any more oil mess.
Last edited by MadIceV8; 09-02-2009 at 09:51 AM.
09-02-2009, 10:54 PM
#275
I've gone through this whole thread and it has helped out a lot! Thanks.
But I any still confused as to why I see a lot of high HP guys, including a lot of sponsors here, run a vented catch can from the dirty sides (with no return line)? It doesn't seem like it would really do anything except catch oil if it was forced into it. From my understanding it wouldn't vent out good and can pull back vapors under boost... Yet when I talk to them they say its better since no oil can reach the manifold...
To add to my question. Here is a thread discussing the use of a Vented catch can. According to this thread, which IMO seems to be the right way, there way is quite wrong.
https://ls1tech.com/forums/forced-in...rs-inside.html
But I any still confused as to why I see a lot of high HP guys, including a lot of sponsors here, run a vented catch can from the dirty sides (with no return line)? It doesn't seem like it would really do anything except catch oil if it was forced into it. From my understanding it wouldn't vent out good and can pull back vapors under boost... Yet when I talk to them they say its better since no oil can reach the manifold...
To add to my question. Here is a thread discussing the use of a Vented catch can. According to this thread, which IMO seems to be the right way, there way is quite wrong.
https://ls1tech.com/forums/forced-in...rs-inside.html
Venting will prevent crankcase pressurization, but it does present other negative effects most don't consider.
Happy motoring,
Last edited by 405HP_Z06; 09-05-2009 at 12:55 PM.
09-03-2009, 09:06 PM
#276
405HP_Z06 YGPM.
I am trying to figure out a solution to my dipstick poppin forged 347 in my GTO.
I want to run a dual catch can pcv setup, but am also thinking about somehow incorporating a one way check valve vented to the atmosphere that would only allow pressure to escape when crankcase pressure builds up. I figure if I could come up with something like this it would keep my dipstick from popping, and also allow me to retain the pcv setup.
I am trying to figure out a solution to my dipstick poppin forged 347 in my GTO.
I want to run a dual catch can pcv setup, but am also thinking about somehow incorporating a one way check valve vented to the atmosphere that would only allow pressure to escape when crankcase pressure builds up. I figure if I could come up with something like this it would keep my dipstick from popping, and also allow me to retain the pcv setup.
09-05-2009, 12:56 PM
#277
405HP_Z06 YGPM.
I am trying to figure out a solution to my dipstick poppin forged 347 in my GTO.
I want to run a dual catch can pcv setup, but am also thinking about somehow incorporating a one way check valve vented to the atmosphere that would only allow pressure to escape when crankcase pressure builds up. I figure if I could come up with something like this it would keep my dipstick from popping, and also allow me to retain the pcv setup.
I am trying to figure out a solution to my dipstick poppin forged 347 in my GTO.
I want to run a dual catch can pcv setup, but am also thinking about somehow incorporating a one way check valve vented to the atmosphere that would only allow pressure to escape when crankcase pressure builds up. I figure if I could come up with something like this it would keep my dipstick from popping, and also allow me to retain the pcv setup.
09-06-2009, 09:56 PM
#278
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On an NA ls1 setup with a rev can is it necessary to block off the rear pass. port? Right now I have the rear drivers side port and rear pass. port tee-d and going to the catch can. The clean side is factory. Just wanted to know the pass rear port is blocked off in all the diagrams.
09-07-2009, 11:51 AM
#279
On an NA ls1 setup with a rev can is it necessary to block off the rear pass. port? Right now I have the rear drivers side port and rear pass. port tee-d and going to the catch can. The clean side is factory. Just wanted to know the pass rear port is blocked off in all the diagrams.
