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

CFI to TPI - Can I keep the stock pump?

Thread Tools
 
Search this Thread
 
Old Jul 27, 2007 | 01:47 AM
  #1  
wildstar's Avatar
Thread Starter
Junior Member
 
Joined: May 2007
Posts: 89
Likes: 0
From: Las Vegas
Car: 1984 L69 Trans Am
Engine: 305
Transmission: T5
CFI to TPI - Can I keep the stock pump?

I know this sounds like a dumb question, but what do you think about retaining the stock low pressure pump to feed an external high pressure pump?

I just can't get excited about removing the fuel tank to replace the pump.
Reply
Old Jul 27, 2007 | 11:18 AM
  #2  
1989GTATransAm's Avatar
Supreme Member
iTrader: (3)
 
Joined: Sep 2003
Posts: 6,859
Likes: 14
From: Cypress, California
Car: 1989 GTA
Engine: 369 TPI
Transmission: 4L60E
Axle/Gears: 3.70 Nine Bolt
Re: CFI to TPI - Can I keep the stock pump?

In a word. NO. You have to put in a TPI type fuel pump.
Reply
Old Jul 31, 2007 | 09:52 PM
  #3  
socal's Avatar
Member
 
Joined: Jul 2007
Posts: 295
Likes: 0
From: Lake Jackson Tx
Car: 91z,97ws6,98fb,87&90jeep,05 yz250
Engine: 5.0tpi,5.7LT4,5.7LS1,4.2I6,5.7TPI,1
Transmission: t5,4l60e,
Axle/Gears: 3.42
Re: CFI to TPI - Can I keep the stock pump?

Originally Posted by 1989GTATransAm
In a word. NO. You have to put in a TPI type fuel pump.

Reply
Old Aug 1, 2007 | 12:25 AM
  #4  
wildstar's Avatar
Thread Starter
Junior Member
 
Joined: May 2007
Posts: 89
Likes: 0
From: Las Vegas
Car: 1984 L69 Trans Am
Engine: 305
Transmission: T5
Re: CFI to TPI - Can I keep the stock pump?

OH, I'm sure that replacing the pump is the wisest thing... and while I have the suspension apart, might as well replace the sway bar bushings and track bars. But I have hear of some cars using multiple pumps.
Reply
Old Aug 1, 2007 | 02:40 AM
  #5  
mnorton's Avatar
Senior Member
20 Year Member
 
Joined: May 2002
Posts: 845
Likes: 0
From: Northern California, Redding
Car: Red 1987 IROC Convertible
Engine: 305 LB9 TPI
Transmission: T5 5-Speed
Axle/Gears: 9-Bolt 3.45
Re: CFI to TPI - Can I keep the stock pump?

Originally Posted by wildstar
OH, I'm sure that replacing the pump is the wisest thing... and while I have the suspension apart, might as well replace the sway bar bushings and track bars. But I have hear of some cars using multiple pumps.
It sounds like you are the man with a plan... So do it, and then tell us how well it worked!

BONEHEAD....
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Grant2k
TBI
17
Jul 10, 2018 04:01 PM
NBrehm
Engine/Drivetrain/Suspension Parts for Sale
1
Aug 25, 2015 11:49 PM
beachrodder
Tech / General Engine
7
Aug 25, 2015 08:05 AM
Sanjay
Engine/Drivetrain/Suspension Parts for Sale
1
Aug 12, 2015 03:41 PM
marcusaw
DFI and ECM
4
Aug 10, 2015 08:13 AM




All times are GMT -5. The time now is 02:29 AM.