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

flow-matched injectors?

Thread Tools
 
Search this Thread
 
Old May 25, 2007 | 01:22 PM
  #1  
Deeavi's Avatar
Thread Starter
TECH Enthusiast
iTrader: (16)
 
Joined: Nov 2003
Posts: 670
Likes: 2
From: Bowman, SC
Default flow-matched injectors?

I am upgrading to a L92 416 stroker from an LS1. I am going to have to upgrade my fuel system. How important is it to buy flow-matched injectors?
Reply
Old May 25, 2007 | 01:29 PM
  #2  
ChevyChad's Avatar
8 sec potential, 12 sec slip
iTrader: (50)
 
Joined: Apr 2002
Posts: 4,092
Likes: 2
From: Savannah, GA
Default

That is a risk assessment you will have to make for yourself. I didn't want to gamble at all with my new setup when I did it, so I got the flow matched ones.
Reply
Old May 25, 2007 | 02:33 PM
  #3  
98redorangeta's Avatar
12 Second Club
iTrader: (10)
 
Joined: Sep 2005
Posts: 948
Likes: 0
From: From Ohio now in that state up north
Default

Racetronix recomended this to me when i asked about flow matched injectors.
7+4%
8+3%
5+2%
6+2%
3+1%
4+1%
1+0%
2+0%

Getting non flow matched injectors that haven been flowed isnt a good idea because there is a roughly 6% tolerance in the injectors and you dont want to end up putting the least flowing injector back at #7 thats just asking for problems.
Reply
Old May 25, 2007 | 03:12 PM
  #4  
Deeavi's Avatar
Thread Starter
TECH Enthusiast
iTrader: (16)
 
Joined: Nov 2003
Posts: 670
Likes: 2
From: Bowman, SC
Default

Thanks for the info. I was leaning toward the flow-matched injectors and you guys have convinced me now to go that route.

Thanks!
Reply
Old May 25, 2007 | 06:55 PM
  #5  
HSV-GTS-300's Avatar
TECH Enthusiast
 
Joined: May 2005
Posts: 689
Likes: 0
From: Perth, Australia
Default

Originally Posted by 98redorangeta
Racetronix recomended this to me when i asked about flow matched injectors.
7+4%
8+3%
5+2%
6+2%
3+1%
4+1%
1+0%
2+0%
That was my plan also.....but the Flow Matched set (Frod Racing) I got did not number the injectors or the flows on the card. Impossible to tell which flow related to which injector. Thanks Frod.

Might be worthwhile checking before buying that this most simple action is part of the deal.
Reply
Old May 25, 2007 | 07:57 PM
  #6  
Hennytime's Avatar
12 Second Club
iTrader: (33)
 
Joined: Jan 2005
Posts: 2,584
Likes: 0
From: winter springs, fl
Default

its what a 50 dollar difference? just get the tested ones
Reply
Old May 25, 2007 | 08:04 PM
  #7  
Deeavi's Avatar
Thread Starter
TECH Enthusiast
iTrader: (16)
 
Joined: Nov 2003
Posts: 670
Likes: 2
From: Bowman, SC
Default

I just ordered a set from Thunder Racing. I bought these:

"Siemens/Mototron Deka 4 Flow-Matched 60# Style Fuel Injectors"

They are having a sale this weekend!
Reply
Old May 26, 2007 | 07:42 AM
  #8  
ss1's Avatar
ss1
TECH Fanatic
20 Year Member
iTrader: (32)
 
Joined: Jul 2005
Posts: 1,264
Likes: 1
From: Scarborough, Maine
Default

Good deal, those are the ones I bought last time Thunder had a sale. Just don't expect them to be marked. Mine came in clear plastic bag with the Racetronix part number written on the bag in black marker. I had a friend who bought some about the same time, and his came in the same way. I guess they figure they're so closely matched, the placement of each injector is irrelevant.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-1

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

 Verdad Gallardo
story-2

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

 Pouria Savadkouei
story-3

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

 Verdad Gallardo
story-4

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-5

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-6

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-7

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

 Verdad Gallardo
story-8

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-9

10 Camaros You Should Never Buy

 
Old May 26, 2007 | 03:21 PM
  #9  
ZL1Killa's Avatar
TECH Resident
iTrader: (17)
 
Joined: Sep 2004
Posts: 3,747
Likes: 0
From: NC - Charlotte area
Default

Originally Posted by Deeavi
I just ordered a set from Thunder Racing. I bought these:

"Siemens/Mototron Deka 4 Flow-Matched 60# Style Fuel Injectors"

They are having a sale this weekend!
hope you don't run into a rich idle. with your setup you should have enough idle airflow to run them fine i would think.
Reply
Old May 27, 2007 | 01:07 AM
  #10  
Mike @ New Era's Avatar
Banned
iTrader: (10)
 
Joined: Mar 2004
Posts: 1,021
Likes: 1
Default

We have a sale on flowmatched #42's and #60's right now for $40 extra , and our flowmatched injectors come with real data sheets and the injectors are individually labelled for each injector flowed on the sheet that they come with . We also offer flowtesting service for injector sets as well .

Mike
Reply




All times are GMT -5. The time now is 06:59 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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-9
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