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Crankcase to Exhaust Question

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Old 02-16-2016, 02:57 PM
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Default Crankcase to Exhaust Question

I plan to vent my crankcase to my exhaust on a single turbo setup.
My question is can I just run a hose from each valve cover to a tee and then from the tee to my exhaust of should I put two bungs in my exhaust and run individual lines from each valve cover?


Thanks for the help.
Old 02-17-2016, 01:42 AM
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Why not just run a big catch can with big lines?
Old 02-17-2016, 07:16 AM
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Originally Posted by Blown06
Why not just run a big catch can with big lines?
I may do that. I'm just trying not to put anything else under the hood. This is a daily driver and I'm going to run water/meth, so I'll already have that tank under my hood.
Old 02-17-2016, 08:23 AM
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I do, works well, very simple and clean, never have the wiff of blowbye smell either
Old 02-17-2016, 08:24 AM
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Old 02-17-2016, 08:56 AM
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Originally Posted by rotary1307cc
I do, works well, very simple and clean, never have the wiff of blowbye smell either
Thanks.
Man that a nice clean set up there.
I noticed that you put your bungs in the front of your valve cover verses the back and I've seen others that did the same thing and I was wondering if there is a reason for that or just preference.
Old 02-17-2016, 09:06 AM
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Yeah don't put them in the back. I learned that.

With healthy power and long enough duration of pull there is enough oil level and gforce to send oil directly out

I had them in back to begin with. At 1000ft on the track it would look like the car blew up. I mean like an instant on switch
Old 02-17-2016, 09:09 AM
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Originally Posted by rotary1307cc
Yeah don't put them in the back. I learned that.

With healthy power and long enough duration of pull there is enough oil level and gforce to send oil directly out

I had them in back to begin with. At 1000ft on the track it would look like the car blew up. I mean like an instant on switch

LOL
Wow I hadn't thought of that. I'm sure glad I asked.
Old 02-18-2016, 02:39 AM
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Originally Posted by rotary1307cc
What exactly are those lines going back to?
Old 02-18-2016, 11:08 AM
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Into the full exhaust behind the transmission

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Old 02-18-2016, 11:22 AM
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Originally Posted by rotary1307cc
Into the full exhaust behind the transmission



Do you guys take pics of everything and catalog them or just happen to have everything laying around? lol

That engine compartment just screams power! Very nice workmanship!
Old 02-19-2016, 02:04 AM
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I think that turbo is too small.....
:-)

Looks like the old Moroso pan evac kit.
Such a good idea. I believe I'll add this to mine this year.

Ron
Old 02-19-2016, 02:15 AM
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Man. That's a good looking engine bay😎
Old 02-19-2016, 02:17 AM
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Would u happen to have a diagram on how its plumbed?.
I want try it on my current build.
Old 02-19-2016, 10:16 AM
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http://www.moroso.com/eb/web/instructions/25900_inst.pdf

This shows the installation
Old 02-19-2016, 12:32 PM
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I am definitely doing an exhaust scavenging system to my car over the next couple of months while I am doing some other things. This thread has been good info.
Old 02-19-2016, 12:59 PM
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Thanks for compliments

Yeah I used the moroso kit, though I'm only using the checkvalves and weld in bungs now

Joe posted the plumbing, just from valve cover to exhaust it goes

Tip, braided -12 will slip right over the check valves perfectly if you want to use nice hose



And I really should mention this so please keep it in mind

I don't know how well this would work in an exhaust that would make decent back pressure

The reason mine works so well is because I have a 5" fender dump I open whenever I am going to beat on it. So with the dump open I make no pressure in the system, but I still have alot of good gas velocity passing the evac, even with the dump open.

It's really strange, can have the car idle there and with the dump open you wouldn't think there would be anything coming out the full exhaust at the back, but there still is very much

I can just say my old motor was as loose as a worn out *****, a metric ton of blow by, but the motor came out as dry as new without any leaks, so the crank pressure was held very well in check

I just can't stand getting that smell of blowby from an open breather

http://m.summitracing.com/parts/mor-...zeMaAqDJ8P8HAQ
Old 02-21-2016, 11:28 AM
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Jet boats run crankcase evacs to the headers all the time with great success.
Old 02-22-2016, 11:24 AM
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I ran a similar setup, but T'd lines from each valve cover to a single line that ran into the dump tube of the wastegate so it pulled, or attempted to pull a vacuum when the wastegate opened, but just vented the rest of the time.
Old 02-22-2016, 11:52 AM
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Is there a certain amount of exhaust length you should have, after the weld on tubes? I am running the TSP true dual system, dumped before axle.


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