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

How do I properly adjust my Crane AFPR?

Thread Tools
 
Search this Thread
 
Old Aug 8, 2003 | 02:06 PM
  #1  
Bimma86's Avatar
Thread Starter
Member
 
Joined: Sep 2001
Posts: 283
Likes: 0
From: Rochester, NY, USA
Car: 1986 IROC-Z
Engine: 355 TPI
Transmission: 700R4
Axle/Gears: 3.23 Posi
How do I properly adjust my Crane AFPR?

Hi guys, I am really wondering since it's been awhile, how to adjust my Crane AFPR properly.... So could some tell me the exact steps.... I have a fuel pressure gauge so dont worry about that aspect.
Here is what I think I do: disconnect vaccum line from plenum, hook up fuel pressure gauge, turn key to 'on' position and get readings like twice to get accurate pressure, then with vaccum line still disconnnected turn adjustment screw as necessary? then reconnect vaccum line? Does this sound right? when I turn the screw should my gauge still be connected? will it go up and down when I turn the screw? Thanks sorry to be such a fanatic for correct directions!
Reply
Old Aug 9, 2003 | 01:40 PM
  #2  
8Mike9's Avatar
Supreme Member
 
Joined: Jul 1999
Posts: 5,183
Likes: 42
From: Oakdale, Ca
Car: 89 IrocZ
Engine: L98-ish
Transmission: 700R4
Yes, that is correct, but plug the vacuum source when disconnected.

Opps, I see you're looking to do it with the engine off, if so...no need to disconnect the vacuum line, since you're simulating WOT.

It may take more than two cycles to fully bring the pressure up.
Reply
Old Aug 9, 2003 | 01:45 PM
  #3  
8Mike9's Avatar
Supreme Member
 
Joined: Jul 1999
Posts: 5,183
Likes: 42
From: Oakdale, Ca
Car: 89 IrocZ
Engine: L98-ish
Transmission: 700R4
Re: will it go up/dwn? No, only up, until you relieve the pressure..i/e start the car.

Easiest way is to do it running with vacuum line disconnected, much more accurate, as this is the way the car runs.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Hotrodboba400
Firebirds for Sale
3
Dec 10, 2019 07:07 PM
Mark_ZZ3
TPI
15
May 24, 2018 01:02 PM
2012sergen11
Engine/Drivetrain/Suspension Wanted
6
Oct 13, 2015 07:38 PM
wstephan96
Tech / General Engine
0
Sep 25, 2015 04:28 PM




All times are GMT -5. The time now is 02:34 PM.