Fueling & Injection Fuel Pumps | Injectors | Rails | Regulators | Tanks

Newb type question

Old Jun 1, 2010 | 12:38 AM
  #1  
Shenlon's Avatar
Thread Starter
Launching!
iTrader: (4)
 
Joined: Sep 2003
Posts: 214
Likes: 0
From: Raleigh, NC
Default Newb type question

Sorry all, but still very new to the whole fuel aspect of engine management and just had a quick question.

Say a car has a 100% stock motor, but the owner finds a great deal on a walbro fuel pump. Owner knows that in the future he plans to run a FI setup and the pump will be used. If he installs the pump but continues to use his stock motor, are there any ill effects?

Take the same situation and swap fuel pump for injector, does the story change at all?

My understanding of the situation is that you can upgrade the stock fuel pump and injectors, but you won't gain anything out of doing the swap until you put parts in that will actually require the extra fuel. Does this also mean that the replacement parts will continue to work fine in the vehicle until the owner decides to add the power adder that will use the extra fuel?

I'm sorry if I'm wording this question horribly, but it's something I've always wondered about, and I decided I'd just ask the great people here. Thanks in advance.

Last edited by Shenlon; Jun 1, 2010 at 12:46 AM. Reason: Edited for clarity
Reply
Old Jun 1, 2010 | 08:08 PM
  #2  
Lonnies Performance's Avatar
LS1TECH Sponsor
iTrader: (16)
 
Joined: Feb 2007
Posts: 2,662
Likes: 2
From: Pittsburgh, PA
Default

Car with stock engine will work with a bigger pump or larger injectors (within reason) just fine.

Neither will increase power since the car does not need the additional fuel, nor should it alter fuel economy if tuned properly.

If you are planning a forced induction build, please give me a call. I can ensure you get the correct parts (both fuel system & supercharger) & only buy things once.
Reply
Old Jun 1, 2010 | 08:28 PM
  #3  
Shenlon's Avatar
Thread Starter
Launching!
iTrader: (4)
 
Joined: Sep 2003
Posts: 214
Likes: 0
From: Raleigh, NC
Default

Thank you very much for the detailed response. I will definitely keep you in mind when I finally get around to actually deciding what kind of system I want to go with (and more importantly, find the money to pay for it). This was just a question that popped into my head as right now I'm trying to keep an eye out for things I could maybe find used for cheap here and there in the mean-time.
Reply
Old Jun 3, 2010 | 10:28 PM
  #4  
barnat's Avatar
TECH Fanatic
iTrader: (59)
 
Joined: Jan 2007
Posts: 1,736
Likes: 0
From: Pittsburgh,Pa
Default

Originally Posted by Shenlon
Thank you very much for the detailed response. I will definitely keep you in mind when I finally get around to actually deciding what kind of system I want to go with (and more importantly, find the money to pay for it). This was just a question that popped into my head as right now I'm trying to keep an eye out for things I could maybe find used for cheap here and there in the mean-time.
Yea, Lonnies the man with the fuel setup .On another note and something i actually did on my TT build was install the whole fuel pump kit with the lines and everthing but kept the stock injectors in intill i was actually done with my build .It only takes 5 minutes to change out the injectors! Plus you want to atleast breakin your new engine to 500 miles and its best to do it with the stock injectors with the stock tunned PCM as your not taking a chance of washing the cylinders or running to rich or lean. I actually left my stock injectors (28's) in with my built 6.0 till it was dyno time
Reply
Old Jun 4, 2010 | 06:01 PM
  #5  
Lonnies Performance's Avatar
LS1TECH Sponsor
iTrader: (16)
 
Joined: Feb 2007
Posts: 2,662
Likes: 2
From: Pittsburgh, PA
Default

Originally Posted by Shenlon
...I'm trying to keep an eye out for things I could maybe find used for cheap here and there in the mean-time.
Do yourself a favor & do not buy a cheap fuel pump. The wasted time to fix or replace things quickly offsets the savings.
Reply


Thread Tools
Search this Thread

All times are GMT -5. The time now is 03:38 AM.

story-0
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-1
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-2
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-3
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-4
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-5
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-6
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-7
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE
story-8
Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0

The world was a better place when it was still around.

By Brett Foote | 2026-01-23 09:20:37


VIEW MORE
story-9
10 Reasons the LS7 Is GM's Most Extreme Naturally Aspirated V8 Engine Ever

Slideshow: The 7.0-liter LS7 was designed for absolute cutting-edge performance.

By Verdad Gallardo | 2026-01-07 18:36:00


VIEW MORE