Go Back   LS1TECH > LS1-LS2-LS3-LS6-LS7 PERFORMANCE > Generation III Internal Engine
Sign in using an external account
Register Forgot Password?
Search

Generation III Internal Engine
1997-2006 LS1 | LS6
Sponsored by
Texas Speed & Performance

Welcome to LS1Tech.com!
Welcome to LS1Tech.com.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, join LS1Tech.com today!


Reply
 
Thread Tools Search this Thread
Old 08-17-2010, 12:55 PM   #1
TECH Apprentice
Garage is empty, add now
 
4Birdman's Avatar
 
Trader Rating: 13
Join Date: Aug 2003
Location: Raleigh, NC
Posts: 350
Send a message via AIM to 4Birdman
Default Can you tap the LS1 valley pan for a PCV system?

I'm in the process of planning out this 6.0L build, and I really am trying to make the engine bay as clean as possible by removing as much as possible.

I want to run some fabricated valve covers that don't have any vacuum fittings in them, which means I'm going to need to run some sort of PCV catch can setup.

I am wondering if it is possible to put a -AN fitting in the back of the valley pan and run lines up to a catch can hidden down where my AIR pump used to be.

And then can I just vent the catch can, and not have to run back through to the TB? I know I can run a breather on the valve covers, but I'd prefer to not have any breathers, just a small oil cap.

I guess I could also put some -AN fittings in the back of the valve covers and run them to a catch can, but if I can tap the valley pan and be done with it, that would be a bonus for me!

What do you guys think?
__________________
1998 Trans Am - T56 swap, C6 brakes, 6.0L coming soon

PatriotDream.org - Making a soldier's dream come true
4Birdman is offline   Reply With Quote
Old 08-17-2010, 04:35 PM   #2
Staging Lane
Garage is empty, add now
 
Trader Rating: 2
Join Date: Aug 2010
Location: Quebec
Posts: 58
Default

Hi , i am pretty sure that can be done because i saw a valley plate cover that someone was using and it had been tapped , but it wasnt a homemade thing it was actually bought somewhere , i know what you mean about the small filters on your valve covers because this is what i did w,,ith my magnuson set up on my 4.8 pickup because i did not want to vent it back into the intake and gum up my supercharger , they look pretty old school on each valve cover but they work , i am pretty sure your idea will work afterall you are just venting pressure , if it is not thick enuf to tap you can use a bulk head an fitting with a seal washer, when i get around to it this is what i am going to do , Eric
EricD is offline   Reply With Quote
Old 08-17-2010, 07:45 PM   #3
TECH Fanatic
Garage is empty, add now
 
Irish350's Avatar
 
Trader Rating: 14
Join Date: Mar 2007
Location: Phoenix/Tempe, AZ
Posts: 1,975
Default

you could use a normal slip fitting on your braided lined. Otherwise you could tap it for a fitting if you find one that has the flow you need and fill fit in that spot (under the tb?)

As far as just running a dirty line to a can with a breather, thats not how the pcv system works so it wouldnt do you any good. if you skim through this it has the diagram you need.

http://www.ls1tech.com/forums/genera...outing-ok.html
__________________
Sean

402" ls2/3
Irish350 is offline   Reply With Quote
Old 08-17-2010, 09:17 PM   #4
TECH Fanatic
Garage is empty, add now
 
Mumbles's Avatar
 
Trader Rating: 4
Join Date: Aug 2007
Location: SouthEastern Iowa
Posts: 1,408
Default

If you install an LS6 Valley Cover you can pretty much remove your entire LS1 PCV System. That's what I did when I installed my LS6 Intake and I also added a RevXtreme Catchcan.

I used the writeup on ls1howto.com. Here's a link...

http://www.ls1howto.com/index.php?article=18

Its not too difficult a swap. Cutting the piece out of the block that needs to be removed can be cause a little anxiety. I guess I'm not sure if the 6.0L Block would need this modification or not. Either way, its not as bad as it sounds.
__________________

1999 Firebird Formula
M6 Hurst-Billet Short-Throw, Monster Level 3, TICK Adj. MC|SLP Airlid, Smooth Bellows, Polished TB, LS6 Intake|Jet Hot LTs, Catted Y-Pipe, SLP Loudmouth|SLP Subframe Connectors, Spohn Adj. Torque Arm, LCAs
Mumbles is offline   Reply With Quote
Old 08-17-2010, 10:10 PM   #5
TECH Regular
Garage is empty, add now
 
Trader Rating: 2
Join Date: Nov 2009
Location: Ahwatukee
Posts: 450
Default

Agree with Mumbles just buy the ls6 cover I paid like 90 and it came with new gasket and bolts
__________________
383 STROKER MS4 CAM HARLAND ROCKERS LS7 LIFTER PORTED DART PRO 1 HEADS 2.055/1.60 59CC K&N COLD AIR INTAKE 32LBS INJECTORS 90MM FAST INTAKE WITH DIRECT PORT NITROUS 90MM TB ASP UNDERDRIVE PULLEY PACESETTER LT HEADERS AND OFF ROAD Y-PIPE HOOKER STREET FORCE CAT-BACK EXHAUST LEVEL 4 BUILT 4L60E TRANS 3600 CONVERTER 4.10 GEARS
09camaro383 is offline   Reply With Quote
Old 08-17-2010, 10:28 PM   #6
TECH Apprentice
Garage is empty, add now
 
4Birdman's Avatar
 
Trader Rating: 13
Join Date: Aug 2003
Location: Raleigh, NC
Posts: 350
Send a message via AIM to 4Birdman
Default

I don't want that **** running up to the throttle body, is there any way to just get rid of that?

The PCV valve is essentially a check valve, correct? It allows dirty air to leave without allowing any air to enter back into the system.

Couldn't I run an in-line PCV valve to a vented catch can, and not have to run anything back to the intake?
__________________
1998 Trans Am - T56 swap, C6 brakes, 6.0L coming soon

PatriotDream.org - Making a soldier's dream come true
4Birdman is offline   Reply With Quote
Old 08-18-2010, 08:21 PM   #7
Banned
Garage is empty, add now
 
JasonSS2000's Avatar
 
Trader Rating: 1
Join Date: Apr 2010
Posts: 66
Default

Quote:
Originally Posted by 4Birdman View Post
I don't want that **** running up to the throttle body, is there any way to just get rid of that?

The PCV valve is essentially a check valve, correct? It allows dirty air to leave without allowing any air to enter back into the system.

Couldn't I run an in-line PCV valve to a vented catch can, and not have to run anything back to the intake?

There would be no way to draw or evac the harmfull combustion byproducts out of the crankcase. You must have a filtered fresh air source preferably on the oppiste valve cover as the crankcase evacs from. The intake manifold provides the vacuum to acomplish this. A good oil seperating can will not allow oil vapor to get through.

Do a search for: "is my catchcan routing correct?"
JasonSS2000 is offline   Reply With Quote
Old 08-18-2010, 08:21 PM
LS1Tech
Pontiac Firebird




Paid Advertisement
Reply

Tags
1999, 60, 60l, catch, cover, crankcase, installing, ls1, ls6, pan, pcv, positive, routing, valley, ventaliation


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off



All times are GMT -5. The time now is 09:00 AM.


Powered by vBulletin® Version 3.7.4
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Advertising - Terms of Service - Privacy Statement - JOBS
Emails & Contact Details