Generation III External Engine LS1 | LS6 | Bolt-Ons | Intakes | Exhaust | Ignition | Accessories
Sponsored by:
Sponsored by:

Help! where do these vacume lines go??

Thread Tools
 
Search this Thread
 
Old Sep 4, 2010 | 09:52 AM
  #1  
ls1curt's Avatar
Thread Starter
8 Second Club
iTrader: (31)
 
Joined: Jun 2009
Posts: 1,206
Likes: 3
From: CT
Default Help! where do these vacume lines go??

where do the vacume lines behind the intake go to? below is a pic of what i have. the engine in going in, in a couple hours so i need to know which lines go where.
thanks
Reply
Old Sep 4, 2010 | 10:17 AM
  #2  
ILLWS6's Avatar
11 Second Club
iTrader: (13)
 
Joined: Jul 2003
Posts: 213
Likes: 0
Default

Ok I think the two above the bellhousing there go together somehow. Thats the best i can tell by feeling around back there. The other is the vacuum feed for the hvac. It tee's into some lines that go through the firewall on the passenger side.
Reply
Old Sep 4, 2010 | 10:28 AM
  #3  
ILLWS6's Avatar
11 Second Club
iTrader: (13)
 
Joined: Jul 2003
Posts: 213
Likes: 0
Default

Here ya go.
https://ls1tech.com/forums/generatio...schematic.html
Reply
Old Sep 4, 2010 | 10:47 AM
  #4  
ls1curt's Avatar
Thread Starter
8 Second Club
iTrader: (31)
 
Joined: Jun 2009
Posts: 1,206
Likes: 3
From: CT
Default

so something like this
Reply
Old Sep 4, 2010 | 12:11 PM
  #5  
ILLWS6's Avatar
11 Second Club
iTrader: (13)
 
Joined: Jul 2003
Posts: 213
Likes: 0
Default

Ok man i'm really trying here but it hard to see. we can figure this out.
The FAT port on the back goes to the brake booster for sure. I dont know if that piece turns, i dont have a FAST intake, but mine points toward the drivers side. The line with the straight end on it goes to the nipple opposite the fat one like you have the arrow to.
Reply
Old Sep 4, 2010 | 12:31 PM
  #6  
ILLWS6's Avatar
11 Second Club
iTrader: (13)
 
Joined: Jul 2003
Posts: 213
Likes: 0
Default

Now the small fitting on the manifold itself does not exist on my LS6 intake. I can't help you there. I think its just an extra vacuum port.
That last line goes here:
Attached Thumbnails Help! where do these vacume lines go??-vaclinepic1.jpg  
Reply
Old Sep 5, 2010 | 06:18 AM
  #7  
bene's Avatar
Trunion King
iTrader: (16)
 
Joined: May 2006
Posts: 4,394
Likes: 3
From: Texan in Colorado
Default

Okay the one on the right is for your A/C vacuum line, connects to the small port on the right and the one on the left is for your AIR system. IIRC, there is a T fitting that connects to the A/C vacuum line.

Last edited by bene; Sep 5, 2010 at 09:05 AM.
Reply




All times are GMT -5. The time now is 10:10 AM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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
story-9
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE