LS1TECH - Camaro and Firebird Forum Discussion

Generation III Internal Engine 1997-2006 LS1 | LS6
Sponsored by:
Sponsored by:

fuel injectors needed??

Thread Tools
 
Search this Thread
 
Old Apr 9, 2012 | 03:29 PM
Share
  #1  
custombluebird's Avatar
custombluebird
Thread Starter
Staging Lane
 
Joined: Jan 2012
Posts: 89
Likes: 0
From: manchester nh
Default fuel injectors needed??
would i gain any horsepower on a prc ls6 2.5 heads and torquerv2 if i change the injectors and if so what size?
Reply
0
Old Apr 9, 2012 | 04:02 PM
Share
  #2  
time3777's Avatar
time3777
Staging Lane
 
Joined: Nov 2010
Posts: 53
Likes: 0
From: Seymour,Indiana
Default
The only way you would gain any horsepower is if your injectors are maxed out 100%.
Reply
0
Old Apr 9, 2012 | 05:26 PM
Share
  #3  
MikeWS6's Avatar
MikeWS6
TECH Addict
 
Joined: Apr 2009
Posts: 2,354
Likes: 2
Default
It wouldnt hurt. Most guys change the injectors on h / c.
Reply
0
Old Apr 9, 2012 | 05:49 PM
Share
  #4  
baxsom's Avatar
baxsom
TECH Apprentice
iTrader: (6)
 
Joined: Apr 2011
Posts: 301
Likes: 4
From: Rockledge FL
Default
injectors require tuning. you cannot just stick different injectors in and not tune. if your car was tuned with the injectors that you have now and they are not maxed out then bigger injectors will not gain you anything. most people use bigger injectors when they go head/cam because to get a proper tune on the stock LS1 injectors the duty cycle goes close to if not over 100%. if your tune doesnt do that, then no need.
Reply
0
Old Apr 9, 2012 | 06:51 PM
Share
  #5  
christiandoy's Avatar
christiandoy
On The Tree
iTrader: (1)
 
Joined: Apr 2012
Posts: 102
Likes: 0
From: Brampton, ON
Default
what baxsom said, it's all in the tune
Reply
0
Old Apr 9, 2012 | 06:59 PM
Share
  #6  
badazz81z28's Avatar
badazz81z28
TECH Addict
15 Year Member
iTrader: (6)
 
Joined: Sep 2005
Posts: 2,391
Likes: 3
Default
That really doesnt answer the OPs questions. Will that set-up max out 28lb injectors?
Reply
0
Old Apr 9, 2012 | 07:16 PM
Share
  #7  
christiandoy's Avatar
christiandoy
On The Tree
iTrader: (1)
 
Joined: Apr 2012
Posts: 102
Likes: 0
From: Brampton, ON
Default
It very well could, I would go with 33 lb injectors to be safe or even bigger
The bigger you go the more you can play with the tune
Reply
0

Trending Topics

Old Apr 9, 2012 | 07:16 PM
Share
  #8  
christiandoy's Avatar
christiandoy
On The Tree
iTrader: (1)
 
Joined: Apr 2012
Posts: 102
Likes: 0
From: Brampton, ON
Default
also badazz check your pm about the comp cam 230/230 you were interested in
Reply
0
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

 Pouria Savadkouei
story-1

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-2

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-3

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-4

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-5

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

 Verdad Gallardo
story-6

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-7

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-8

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-9

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
Old Apr 9, 2012 | 07:23 PM
Share
  #9  
flintwrench69's Avatar
flintwrench69
TECH Addict
iTrader: (11)
 
Joined: May 2008
Posts: 2,017
Likes: 4
From: Mt Morris, Michigan
Default
Originally Posted by badazz81z28
That really doesnt answer the OPs questions. Will that set-up max out 28lb injectors?
Pretty close, I would upgrade them. 36s would work.
Reply
0
Old Apr 9, 2012 | 07:42 PM
Share
  #10  
badazz81z28's Avatar
badazz81z28
TECH Addict
15 Year Member
iTrader: (6)
 
Joined: Sep 2005
Posts: 2,391
Likes: 3
Default
Who sells LS1 injectors that size besides FAST?

Checking PMs now..
Reply
0
Old Apr 9, 2012 | 08:04 PM
Share
  #11  
flintwrench69's Avatar
flintwrench69
TECH Addict
iTrader: (11)
 
Joined: May 2008
Posts: 2,017
Likes: 4
From: Mt Morris, Michigan
Default
Originally Posted by badazz81z28
Who sells LS1 injectors that size besides FAST?

Checking PMs now..
Tons of places. I bought my 42s on ebay but theres fuel injection connection & just about any vendor that sponsors this site.
Reply
0
Old Apr 9, 2012 | 08:14 PM
Share
  #12  
badazz81z28's Avatar
badazz81z28
TECH Addict
15 Year Member
iTrader: (6)
 
Joined: Sep 2005
Posts: 2,391
Likes: 3
Default
Originally Posted by flintwrench69
Tons of places. I bought my 42s on ebay but theres fuel injection connection & just about any vendor that sponsors this site.
Would you PM me the Ebay seller?
Reply
0
Old Apr 9, 2012 | 08:22 PM
Share
  #13  
custombluebird's Avatar
custombluebird
Thread Starter
Staging Lane
 
Joined: Jan 2012
Posts: 89
Likes: 0
From: manchester nh
Default
the car isnt tuned yet thats why im asking and also what about meth kit would those help out?
Reply
0
Old Apr 10, 2012 | 03:02 AM
Share
  #14  
baxsom's Avatar
baxsom
TECH Apprentice
iTrader: (6)
 
Joined: Apr 2011
Posts: 301
Likes: 4
From: Rockledge FL
Default
i bought 30lbers from fuelinjectorconnection.com for an outstanding price and they even paid me for my stock ones.
Reply
0
Old Apr 10, 2012 | 10:15 AM
Share
  #15  
NC98Z's Avatar
NC98Z
TECH Fanatic
iTrader: (1)
 
Joined: Sep 2003
Posts: 1,306
Likes: 0
Default
Originally Posted by custombluebird
would i gain any horsepower on a prc ls6 2.5 heads and torquerv2 if i change the injectors and if so what size?
I have the MS4 and the TSP 243 Stage 2.5s. It was fine with the 28# injectors until I went the Fast 90/90 route. When we put on the Fast 90/90 we went with 42# Ford Green Tops and retuned and got a +27rwhp increase. So I would say your probally good to go until you update to a bigger intake.
Reply
0
Old Apr 10, 2012 | 01:26 PM
Share
  #16  
custombluebird's Avatar
custombluebird
Thread Starter
Staging Lane
 
Joined: Jan 2012
Posts: 89
Likes: 0
From: manchester nh
Default
if i would change the injectors would i need to change the fuel pump and what size are the stock ones ?
Reply
0
Old Apr 10, 2012 | 01:40 PM
Share
  #17  
BrntWS6's Avatar
BrntWS6
TECH Addict
iTrader: (7)
 
Joined: Feb 2005
Posts: 2,004
Likes: 10
From: Land of the FOID
Default
Most say the fuel pump is good for 450rwhp, but a lot of guys have gone higher with no problems. I've got 442hp on a Mustang dyno and my fuel pressure is fine. For the price difference you might as well get 42lb injectors. I got mine from FIC also, they were around $250. Injector size will be 26lb or 28lb depending of year.
Reply
0
Old Apr 10, 2012 | 01:45 PM
Share
  #18  
custombluebird's Avatar
custombluebird
Thread Starter
Staging Lane
 
Joined: Jan 2012
Posts: 89
Likes: 0
From: manchester nh
Default
okay sweet and my dads friend just told me has a 36lb and he would sell me them for $50 there brand new. he got them for his camaro but he went bigger. are they worth it?
Reply
0
Old Apr 10, 2012 | 01:47 PM
Share
  #19  
BrntWS6's Avatar
BrntWS6
TECH Addict
iTrader: (7)
 
Joined: Feb 2005
Posts: 2,004
Likes: 10
From: Land of the FOID
Default
That's a good deal....grab em'
Reply
0
Old Apr 10, 2012 | 01:51 PM
Share
  #20  
custombluebird's Avatar
custombluebird
Thread Starter
Staging Lane
 
Joined: Jan 2012
Posts: 89
Likes: 0
From: manchester nh
Default
okay will do thank you for the help guys
Reply
0
Tags
Back to Subforum
Generation III Internal Engine
View Next Unread
ls1 build




Advanced Search

All times are GMT -5. The time now is 06:05 AM.

story-0
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-1
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-2
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-3
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-4
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-5
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-6
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-7
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-8
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-9
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