Tony D's Project corner (Oil catch cans) Part 2

[Tony Davila]

Below is both catch cans mocked up but not fully connected.
http://i69.photobucket.com/albums/i66/Zrace1/IMAG0408_zps84560822.jpg
http://i69.photobucket.com/albums/i66/Zrace1/IMAG0422_zps702c84f5.jpghttp://i69.photobucket.com/albums/i66/Zrace1/IMAG0416_zps747dc843.jpg
Finished oil catch can assembly.
http://i69.photobucket.com/albums/i66/Zrace1/IMAG0415_zps1c379537.jpg
http://i69.photobucket.com/albums/i66/Zrace1/IMG_0252_zps7f3a703c.jpg

From my testing which is not visible in the photos. I hooked up an evac system on the exhaust to pull vacuum to the canisters. I used a vacuum/boost gauge to test my work. What I found is that the exhaust system pulled about 3# of vacuum at idle and part throttle and at WOT created +1 psi of pressure. The mufflers created enough back pressure to render the exhaust as a viable source of vacuum at WOT. I was looking for a vacuum source at WOT because when at WOT the intake is no longer pulling vacuum and crank case pressure will build.

Test 2 - I decided to just use intake vacuum as my source and found that it was sufficient enough for the entire power range. I had created extra crank case breathing room when I installed the two oil separator canisters. I found out that this trip to BG only used 1/2 quart of oil to and from. Last year I had used 1 quart up there and 1 quart back. That is a 864 mi trip for me. The results are positive for me being that the crank case cannot any longer get pressurized under any condition. I believe everyone would benefit from such a device.
http://i69.photobucket.com/albums/i66/Zrace1/OIL_zpsf75a9d91.jpg

[Fully Vetted]

Excellent write up, Tony. Thank you for this. And great pics as well. Tell me, were your headers already wrapped or did you do that to help protect the OCC?

[Tony Davila]

Excellent write up, Tony. Thank you for this. And great pics as well. Tell me, were your headers already wrapped or did you do that to help protect the OCC?

David, my headers are the Watson and were already ceramic coated and then I previously wrapped them before I reinstalled them. My engine bay heat is much reduced with them wrapped it was worth it.

I was just being extra careful with the canisters.

[-=Jeff=-]

So how are the 2 ports connected on the canister? Meaning where are they exactly plumbed to?

The clear tube with the John Guest fittings.. What is that for?

Where/how is the exhaust connected to the cans

Cool project

[Tony Davila]

So how are the 2 ports connected on the canister? Meaning where are they exactly plumbed to?
The clear tube with the John Guest fittings.. What is that for?
Where/how is the exhaust connected to the cans

Cool project

So how are the 2 ports connected on the canister? Meaning where are they exactly plumbed to?
Upper port goes to vacuum source, i.e. intake manifold. Second upper port is my test port for vacuum/boost gauge.
The bottom port goes to the injector housing vent port. This is where the excess crank case ventilation comes from and aerated oil mist.
The clear tube with the John Guest fittings.. What is that for?
It is so you can tell when it is time to dump excess oil out of the canister.
Where/how is the exhaust connected to the cans
The canisters are not connected to the exhaust now, that was just an experiment. I wanted to know if the exhaust system could create a vacuum source when at WOT, the answer is no...

[-=Jeff=-]

I assume you are still using the PCV Valves?

If I recall, OEM the tube come out of the IH and then through 2 PCV in parallel, then to the Plenum for vacuum.. so which side of the PCVs are the cans on?

Thanks

[tf95ZR1]

Tony:
Very cool custom car!
How did you secure the ends of the header
heat wrap?
Next: a write up about your meth system.

[HAWAIIZR-1]

Thanks for sharing Tony. You do great, detailed work and I might wrap my headers too after seeing yours. By the way, you have one of my favorite all time Zs.

[Tony Davila]

I assume you are still using the PCV Valves?

If I recall, OEM the tube come out of the IH and then through 2 PCV in parallel, then to the Plenum for vacuum.. so which side of the PCVs are the cans on?

Thanks
PVC valves are still used in between the intake vacuum port and the upper portion of the canisters.
They are installed in this manner - Intake vacuum line - hose- PVC- hose- canister.
Vacuum from the intake pulls from the top of the canisters which then pulls from the inside of the canister then from the bottom port which is attached to the injector housing. I don't really think I need them anymore but I must research more on that subject.

[Tony Davila]

Thanks for sharing Tony. You do great, detailed work and I might wrap my headers too after seeing yours. By the way, you have one of my favorite all time Zs.

Thank you, I appreciate that compliment.

[-=Jeff=-]

Thanks for the info Tony..

I have one catch can.. top is intake vaccuum, bottom goes to the PCV valves which come from the IH so mine is similar but our PCV are in different locations in the path.. not sure it will make a big difference where those are though

[Schrade]

So you HAVE integrated the catch cans in vacuum 'series' with the PCV?

[-=Jeff=-]

So you HAVE integrated the catch cans in vacuum 'series' with the PCV?

Mine are:

Intake Vacuum -- Top of Can -- Bottom of Can -- Top of PCV -- Bottom of PCV -- IH

[Schrade]

Mine are:

Intake Vacuum -- Top of Can -- Bottom of Can -- Top of PCV -- Bottom of PCV -- IH

So that should be the best way - right? Gets the oil out of the line ASAP???

[Tony Davila]

Thanks for the info Tony..

I have one catch can.. top is intake vaccuum, bottom goes to the PCV valves which come from the IH so mine is similar but our PCV are in different locations in the path.. not sure it will make a big difference where those are though
No difference before or after as long as it is in the path.

[-=Jeff=-]

No difference before or after as long as it is in the path.
:cheers:


SO now.. any more pics of the mods on your car?

details on that hood?

[Tony Davila]

So that should be the best way - right? Gets the oil out of the line ASAP???
The purpose of the PVC is so that when you are WOT the PVC stops or minimizes the oil from being pushed in by the pressure created by the crankcase.
We all know it doesn't work to well. At WOT there is no vacuum present on the crankcase, the pressure then builds and oily mist start leaving the IH. Having a oil catch cans helps in capturing this oily mist and prevents it from being ingested into the intake.

[Tony Davila]

Tony:
Very cool custom car!
How did you secure the ends of the header
heat wrap?
Next: a write up about your meth system.
I used stainless mig wire and header bands to secure the wrap.
I already did a write up on my water/meth injection.