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

external fuel pump for TPI

Thread Tools
 
Search this Thread
 
Old Nov 19, 2013 | 05:21 PM
  #1  
Slow88lb9's Avatar
Thread Starter
Member
iTrader: (3)
 
Joined: Nov 2001
Posts: 141
Likes: 0
From: Jamestown NY USA
Car: 88 Iroc 91 Z28
Engine: 5.0 LB9
Transmission: WC T5 / 700R4
Axle/Gears: 10 bolt 3.73
external fuel pump for TPI

I want to use an external fuel pump on my 91 Z28 with TPI anyone have any recommendations on what one to use.
Reply
Old Nov 19, 2013 | 07:11 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
Re: external fuel pump for TPI

I can't recommend an external high pressure pump...but have to ask a few things

Is your in tank pump dead?

If so...pretty sure it's a positive displacement pump...can an external pump draw through it?

If so, please don't relie on barbed fittings and hose clamps, cut/double invert flare, and make good solid connections with your new pump...you only want to do this once...I can't see running a 60+ PSI pump spliced with rubber fuel lines and hose clamped to a cut steel line..being very reliable.

But back to my first point...if we can't suck though the original pump and it has to be removed and modify the pump insert...may as just as well put in another in tank pump that will last another 20+ years
Reply
Old Nov 19, 2013 | 07:29 PM
  #3  
Slow88lb9's Avatar
Thread Starter
Member
iTrader: (3)
 
Joined: Nov 2001
Posts: 141
Likes: 0
From: Jamestown NY USA
Car: 88 Iroc 91 Z28
Engine: 5.0 LB9
Transmission: WC T5 / 700R4
Axle/Gears: 10 bolt 3.73
Originally Posted by 8Mike9
I can't recommend an external high pressure pump...but have to ask a few things

Is your in tank pump dead?

If so...pretty sure it's a positive displacement pump...can an external pump draw through it?

If so, please don't relie on barbed fittings and hose clamps, cut/double invert flare, and make good solid connections with your new pump...you only want to do this once...I can't see running a 60+ PSI pump spliced with rubber fuel lines and hose clamped to a cut steel line..being very reliable.

But back to my first point...if we can't suck though the original pump and it has to be removed and modify the pump insert...may as just as well put in another in tank pump that will last another 20+ years
The car is completely striped stock pump is gone I am putting a tank sump on it and using an fittings.
I know someone has done this.
Reply
Old Nov 20, 2013 | 12:18 AM
  #4  
vetteoz's Avatar
Supreme Member
20 Year Member
iTrader: (13)
 
Joined: Apr 2005
Posts: 7,736
Likes: 14
From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: external fuel pump for TPI

Originally Posted by Slow88lb9
I know someone has done this.
https://www.thirdgen.org/forums/tech...-location.html
https://www.thirdgen.org/forums/carb...-mounting.html
https://www.thirdgen.org/forums/orga...fuel-pump.html
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
92camaroJoe
TBI
32
Jul 29, 2023 07:57 PM
RazorN8
Tech / General Engine
4
Jan 7, 2022 11:44 AM
Grant2k
TBI
17
Jul 10, 2018 04:01 PM
beachrodder
Tech / General Engine
7
Aug 25, 2015 08:05 AM
92camaroJoe
Tech / General Engine
6
Aug 13, 2015 06:07 AM




All times are GMT -5. The time now is 11:58 PM.