Forced Induction Superchargers | Turbochargers | Intercoolers

Crankcase to Exhaust Question

Thread Tools
 
Search this Thread
 
Old Feb 16, 2016 | 02:57 PM
  #1  
PCella's Avatar
Thread Starter
Teching In
iTrader: (2)
 
Joined: Nov 2015
Posts: 42
Likes: 0
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.
Reply
Old Feb 17, 2016 | 01:42 AM
  #2  
Blown06's Avatar
8 Second Truck Club
iTrader: (32)
 
Joined: Apr 2006
Posts: 5,181
Likes: 8
Default

Why not just run a big catch can with big lines?
Reply
Old Feb 17, 2016 | 07:16 AM
  #3  
PCella's Avatar
Thread Starter
Teching In
iTrader: (2)
 
Joined: Nov 2015
Posts: 42
Likes: 0
Default

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.
Reply
Old Feb 17, 2016 | 08:23 AM
  #4  
rotary1307cc's Avatar
8 Second Club
15 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (5)
 
Joined: Jan 2007
Posts: 2,790
Likes: 125
Default

I do, works well, very simple and clean, never have the wiff of blowbye smell either
Reply
Old Feb 17, 2016 | 08:24 AM
  #5  
rotary1307cc's Avatar
8 Second Club
15 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (5)
 
Joined: Jan 2007
Posts: 2,790
Likes: 125
Default

Reply
Old Feb 17, 2016 | 08:56 AM
  #6  
PCella's Avatar
Thread Starter
Teching In
iTrader: (2)
 
Joined: Nov 2015
Posts: 42
Likes: 0
Default

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.
Reply
Old Feb 17, 2016 | 09:06 AM
  #7  
rotary1307cc's Avatar
8 Second Club
15 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (5)
 
Joined: Jan 2007
Posts: 2,790
Likes: 125
Default

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
Reply
Old Feb 17, 2016 | 09:09 AM
  #8  
PCella's Avatar
Thread Starter
Teching In
iTrader: (2)
 
Joined: Nov 2015
Posts: 42
Likes: 0
Default

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.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

 Brett Foote
story-1

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

 Pouria Savadkouei
story-2

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-3

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-4

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-5

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-6

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-7

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-8

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-9

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
Old Feb 18, 2016 | 02:39 AM
  #9  
Blown06's Avatar
8 Second Truck Club
iTrader: (32)
 
Joined: Apr 2006
Posts: 5,181
Likes: 8
Default

Originally Posted by rotary1307cc
What exactly are those lines going back to?
Reply
Old Feb 18, 2016 | 11:08 AM
  #10  
rotary1307cc's Avatar
8 Second Club
15 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (5)
 
Joined: Jan 2007
Posts: 2,790
Likes: 125
Default

Into the full exhaust behind the transmission

Name:  IMG_0868.jpg
Views: 108
Size:  149.3 KB
Reply
Old Feb 18, 2016 | 11:22 AM
  #11  
Bad Apache's Avatar
TECH Fanatic
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Sep 2013
Posts: 1,007
Likes: 126
From: Mechanicsburg, PA
Default

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!
Reply
Old Feb 19, 2016 | 02:04 AM
  #12  
RonSSNova's Avatar
8 Second Club
10 Year Member
Photogenic
Photoriffic
Top Answer: 1
iTrader: (3)
 
Joined: Aug 2011
Posts: 4,732
Likes: 815
From: Portland, OR
Default

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
Reply
Old Feb 19, 2016 | 02:15 AM
  #13  
NemeSS's Avatar
TECH Senior Member
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (127)
 
Joined: Sep 2005
Posts: 6,889
Likes: 9
From: Houston,TX
Default

Man. That's a good looking engine bay😎
Reply
Old Feb 19, 2016 | 02:17 AM
  #14  
NemeSS's Avatar
TECH Senior Member
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (127)
 
Joined: Sep 2005
Posts: 6,889
Likes: 9
From: Houston,TX
Default

Would u happen to have a diagram on how its plumbed?.
I want try it on my current build.
Reply
Old Feb 19, 2016 | 10:16 AM
  #15  
RonSSNova's Avatar
8 Second Club
10 Year Member
Photogenic
Photoriffic
Top Answer: 1
iTrader: (3)
 
Joined: Aug 2011
Posts: 4,732
Likes: 815
From: Portland, OR
Default

http://www.moroso.com/eb/web/instructions/25900_inst.pdf

This shows the installation
Reply
Old Feb 19, 2016 | 12:32 PM
  #16  
93camaro_zzz's Avatar
12 Second Club
iTrader: (13)
 
Joined: Nov 2005
Posts: 2,211
Likes: 3
From: San Diego, Ca.
Default

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.
Reply
Old Feb 19, 2016 | 12:59 PM
  #17  
rotary1307cc's Avatar
8 Second Club
15 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (5)
 
Joined: Jan 2007
Posts: 2,790
Likes: 125
Default

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
Reply
Old Feb 21, 2016 | 11:28 AM
  #18  
Blazeracer's Avatar
On The Tree
iTrader: (2)
 
Joined: Nov 2011
Posts: 164
Likes: 0
Default

Jet boats run crankcase evacs to the headers all the time with great success.
Reply
Old Feb 22, 2016 | 11:24 AM
  #19  
ddnspider's Avatar
10 Second Club
20 Year Member
Liked
Loved
Community Favorite
iTrader: (26)
 
Joined: Aug 2004
Posts: 14,628
Likes: 1,778
From: FL
Default

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.
Reply
Old Feb 22, 2016 | 11:52 AM
  #20  
Hi-Po's Avatar
TECH Enthusiast
iTrader: (4)
 
Joined: Nov 2005
Posts: 712
Likes: 0
From: Florida
Default

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.
Reply



All times are GMT -5. The time now is 11:05 AM.

story-0
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Don't get dad new socks or a grill brush this year.

By Brett Foote | 2026-06-09 14:55:56


VIEW MORE
story-1
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-2
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-3
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-4
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-5
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-6
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-7
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-8
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-9
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE