Generation III External Engine LS1 | LS6 | Bolt-Ons | Intakes | Exhaust | Ignition | Accessories
Sponsored by:
Sponsored by:

Horsepower on stock injectors?

Thread Tools
 
Search this Thread
 
Old Jun 13, 2002 | 05:39 AM
  #1  
346cubes's Avatar
Thread Starter
Staging Lane
 
Joined: May 2002
Posts: 64
Likes: 0
From: nj
Default Horsepower on stock injectors?

How much power have you put down at the wheels with stock injectors? Facts only please. Calculations and formulas have already been discussed in old posts.
Reply
Old Jun 13, 2002 | 09:04 AM
  #2  
Trevor @ Texas Speed & Perf.'s Avatar
LS1Tech Premium Sponsor
20 Year Member
Active Streak: 30 Days
Active Streak: 60 Days
iTrader: (3)
 
Joined: Nov 2001
Posts: 4,399
Likes: 5
From: Lubbock, Texas
Default Re: Horsepower on stock injectors?

Which injectors are you referring to? The '98 and '01+ injectors are bigger than the '99 and '00.
__________________
Reply
Old Jun 13, 2002 | 01:23 PM
  #3  
346cubes's Avatar
Thread Starter
Staging Lane
 
Joined: May 2002
Posts: 64
Likes: 0
From: nj
Default Re: Horsepower on stock injectors?

Year don't matter. There have been dyno claims of 400+ HP using the 99-00 26# injectors. 1998, 01-02 28# should dyno over that easy. Prove that SVO 30# are not needed until 450+.
Reply
Old Jun 13, 2002 | 01:38 PM
  #4  
Terry Burger's Avatar
TECH Veteran
iTrader: (4)
 
Joined: Nov 2001
Posts: 4,712
Likes: 0
From: Simi Valley, CA
Default Re: Horsepower on stock injectors?

435rwhp on 2001 injectors here.
Reply
Old Jun 13, 2002 | 02:02 PM
  #5  
346cubes's Avatar
Thread Starter
Staging Lane
 
Joined: May 2002
Posts: 64
Likes: 0
From: nj
Default Re: Horsepower on stock injectors?

Thanks Terry, Did you have any lean conditions at high RPM?
Reply
Old Jun 14, 2002 | 02:17 PM
  #6  
NastySSoo's Avatar
TECH Fanatic
 
Joined: Jan 2002
Posts: 1,376
Likes: 0
From: Stuart Fl
Default Re: Horsepower on stock injectors?

417 on 00s. Mine was lean across the board, but richened up a little in the upper rpms. Im getting my tuning adjusted.
Reply
Old Jun 14, 2002 | 03:51 PM
  #7  
Ragtop 99's Avatar
TECH Senior Member
iTrader: (7)
 
Joined: Nov 2001
Posts: 9,491
Likes: 1
From: Bethesda, MD
Default Re: Horsepower on stock injectors?

OnyxSS saw an improvement on the dyno from switching from stock 2000 injectors to 30lb SVOs. The dyno was smoother, especially in the higher rpm range (e.g. above 6000 rpm). He was making about 400 HP in an A4.

<small>[ June 14, 2002, 03:53 PM: Message edited by: Ragtop 99 ]</small>
Reply
Old Jun 14, 2002 | 11:46 PM
  #8  
Trevor @ Texas Speed & Perf.'s Avatar
LS1Tech Premium Sponsor
20 Year Member
Active Streak: 30 Days
Active Streak: 60 Days
iTrader: (3)
 
Joined: Nov 2001
Posts: 4,399
Likes: 5
From: Lubbock, Texas
Default Re: Horsepower on stock injectors?

I had 427 RWHP on '98 injectors in my T/A. ATap looked great, but I never had it on a wideband O2 after the changes in heads, intake, etc. It held 12.5:1 a/f ratio up to 7k right after it was built.
__________________
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

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

 Verdad Gallardo
story-1

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

 Pouria Savadkouei
story-2

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

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

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

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo




All times are GMT -5. The time now is 11:54 PM.

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