Carburetors Carb discussion and questions. Upgrading your Third Gen's carburetor, swapping TBI to carburetor, or TPI to carburetor? Need LG4 or H.O. info? Post it here.

Carb in a FI car

Thread Tools
 
Search this Thread
 
Old Oct 28, 2002 | 06:46 PM
  #1  
hossrod's Avatar
Thread Starter
Junior Member
 
Joined: Oct 2002
Posts: 7
Likes: 0
Carb in a FI car

I have a 91 camaro without an engine (friend bought car for engine, I pulled it, kept car). I'm going to be putting in a carbed engine. It has an edelbrock performer carb and intake (I'm guessing its a 650cfm).

Anyways, I'm not positive on how to hook it up. The stock engine was FI so there is a fuel pump I'm not sure about and two fuel lines in the engine compartment I'm not sure about. My engine has a mechanical pump. Whats the best way to go about getting this connected? I've been told that the FI system wont directly work because of too much pressure. Should I use the mechanical pump or switch to an electric one? Do I need to bypass the stock fuel pump? Etc.

Thanks for any help!!
Reply
Old Oct 28, 2002 | 08:21 PM
  #2  
Jester's Avatar
Supreme Member
 
Joined: Jul 1999
Posts: 2,010
Likes: 0
From: Homestead, Fla
You should remove the stock intank pump and replace it with a pickup or a piece of hose.

The thicker of the two lines in the engine bay is the delivery line. Hook you pump up to that, and just plug the other one unless your pump has a provision for a return line.
Reply
Old Oct 29, 2002 | 07:30 AM
  #3  
88IROC350TPI's Avatar
Supreme Member
20 Year Member
 
Joined: May 2001
Posts: 2,009
Likes: 5
From: Pitman, NJ
Car: '89 IROC-Z
Engine: Canfield 195 headed 358ci
Transmission: TH350, Art Carr 9.5"
Axle/Gears: 3.92 Dana 44
OR if you dont feel comfortable doing all that simply install a fuel pressure regulator to regulate the high psi FI pump down to carb-friendly psi. I've been running like this for about a year and have no problems ...although I am going to redo my fuel system very soon.
Reply
Old Oct 30, 2002 | 11:13 AM
  #4  
hossrod's Avatar
Thread Starter
Junior Member
 
Joined: Oct 2002
Posts: 7
Likes: 0
Thanks for the replies!

Whats a good PSI for a 650-750 carb?
Reply
Old Oct 30, 2002 | 11:20 AM
  #5  
88IROC350TPI's Avatar
Supreme Member
20 Year Member
 
Joined: May 2001
Posts: 2,009
Likes: 5
From: Pitman, NJ
Car: '89 IROC-Z
Engine: Canfield 195 headed 358ci
Transmission: TH350, Art Carr 9.5"
Axle/Gears: 3.92 Dana 44
5-7psi will generally keep any carb happy. You'll need a Mallory 3-port return style regulator if you want to use my method.
Reply
Old Oct 30, 2002 | 12:37 PM
  #6  
Blackroc86's Avatar
Senior Member
20 Year Member
 
Joined: Jun 2001
Posts: 920
Likes: 0
From: Saskatchewan
Car: 1986 Iroc
Engine: 454 Demon 850DP
Transmission: TH350, 3500 stall
Axle/Gears: 3.73
The part number for the Mallory 3-port is #4309 or if you are looking it up on Summits site it is MAA-4309
Reply
Old Oct 31, 2002 | 02:22 AM
  #7  
hossrod's Avatar
Thread Starter
Junior Member
 
Joined: Oct 2002
Posts: 7
Likes: 0
Thanks! That looks exactly what I'm looking for!
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
midge54
LTX and LSX
21
Dec 27, 2019 04:14 PM
Azrael91966669
DIY PROM
25
Jun 20, 2017 04:04 AM
theshackle
Tech / General Engine
4
Mar 5, 2017 06:37 PM
midge54
Engine/Drivetrain/Suspension Wanted
1
Jan 29, 2017 07:00 PM
86IROC112
Engine/Drivetrain/Suspension Parts for Sale
4
Aug 17, 2015 02:00 PM




All times are GMT -5. The time now is 08:01 AM.