TPI Tuned Port Injection discussion and questions. LB9 and L98 tech, porting, tuning, and bolt-on aftermarket products.
Sponsored by:
Sponsored by:

vacuum lines

Thread Tools
 
Search this Thread
 
Old 01-13-2008, 09:14 PM
  #1  
Junior Member
Thread Starter
 
ironleg's Avatar
 
Join Date: Jan 2007
Location: manhattan kansas
Posts: 34
Likes: 0
Received 0 Likes on 0 Posts
Car: 1988 iroc z28
Engine: 357ci
Transmission: 4sp auto
Axle/Gears: stock for now
vacuum lines

can i get some help with them like where the fuel psi reg gets it vac from?? and the hvac what is it and where is it at?? is it have two very small lines and go where?? my chiltons manual has a drawing but its not very good to see detail on it my car is an 88 iroc/ tpi /auto
Old 02-28-2008, 01:01 PM
  #2  
Member
 
IROCWPB's Avatar
 
Join Date: Aug 2006
Location: West Palm Beach, FL
Posts: 160
Likes: 0
Received 0 Likes on 0 Posts
Car: 88' Camaro IROC-Z
Engine: 383ci TPI
Transmission: 700R4
Axle/Gears: stock
Re: vacuum lines

If you still need help with this contact me through yahoo or aim or something, I'll be glad to help you out.
Old 03-01-2008, 12:02 AM
  #3  
Supreme Member

iTrader: (8)
 
Mkos1980's Avatar
 
Join Date: Jan 2000
Location: Macedonia ,OH
Posts: 3,968
Likes: 0
Received 1 Like on 1 Post
Car: Formula
Engine: 6.0 LSX
Transmission: 4L60E
Axle/Gears: 9 Bolt 3:27
Re: vacuum lines

Fuel pressure regulator goes to the small port on the far side of the intake plenum. The larger of the 2 ports goes to a 2 way check valve. From the side of the check valve goes and splits by the cruise control, going to the cruise and going to the vacuume ball in the frame. From the other part of the check valve, a vacuume line runs in though the firewall to your HVAC controls. (Or near it)The largest single port on the back of the plenum goes to your brake booster. The port on the base intake manifold goes to PVC. Egr silonoid connects to the egr valve and then to the port located under the Throttle body. The larger of the 2 ports on the side of the TB is a fresh air tube to the passenger valve cover and the lower port is for the charcoal canister. Thats it for vacuume lines.
Old 03-01-2008, 08:57 AM
  #4  
Junior Member
Thread Starter
 
ironleg's Avatar
 
Join Date: Jan 2007
Location: manhattan kansas
Posts: 34
Likes: 0
Received 0 Likes on 0 Posts
Car: 1988 iroc z28
Engine: 357ci
Transmission: 4sp auto
Axle/Gears: stock for now
Re: vacuum lines

thank you all for the help -ive got the fpr- the vavle covers ive got one to the intake and the other is a breather cap-no egr so the port under the tb is pluged the two on the side of the tb are pluged but will hock the charcoal canister back up-brake booster got it-looks like i need to get the check vavle for the cruise an vac ball and to the two small hard lines by the ac box on the firewall does that all sound right?????
Old 03-04-2008, 12:17 AM
  #5  
Supreme Member

iTrader: (8)
 
Mkos1980's Avatar
 
Join Date: Jan 2000
Location: Macedonia ,OH
Posts: 3,968
Likes: 0
Received 1 Like on 1 Post
Car: Formula
Engine: 6.0 LSX
Transmission: 4L60E
Axle/Gears: 9 Bolt 3:27
Re: vacuum lines

Bingo.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
gta892000
TPI
13
08-11-2019 11:16 AM
camarohelp
Tech / General Engine
5
09-12-2015 05:45 PM
Doobie52
Engine/Drivetrain/Suspension Parts for Sale
0
09-11-2015 06:19 PM
IROCtometal
TPI
3
09-09-2015 10:01 AM
snakeshooter
V6
3
09-07-2015 11:13 AM



Quick Reply: vacuum lines



All times are GMT -5. The time now is 05:03 PM.