What injectors for a 2000 LS1??
Thread Starter
Burning Brakes
Joined: Nov 2001
Posts: 812
Likes: 1
From: Sherman Texas
What injectors for a 2000 LS1??
I am looking to upgrade the injectors in my 2000 LS1, minor bolt on mods with a Diablosport programmer. What size do I really need? I am looking to get smoother idle and better throttle response. Any help is appreciated.
Thanks.
Chris
Thanks.
Chris
Racer
Joined: Oct 2005
Posts: 367
Likes: 3
From: maple grove and North Port fl mn and now florida
With only minor mods you dont need bigger injecters, the stock are fine. Ive done a filter, custom tune, ported TB, new intake, cooler thermostat, 1.85 roller rockers and Catback on the wifes car and it tuned out fine with the stock injecters. That said if you really want to go larger I have a set of 42 lb injecters I took off my LS1 blown car when I put the 427 in it last year, stock I believe are 28's. Cheers rick
Thread Starter
Burning Brakes
Joined: Nov 2001
Posts: 812
Likes: 1
From: Sherman Texas
I am not looking to go larger just for fun, I just wondered if there had been a better size / pressure setup on the later models. My car has a terrible rough idle, and most of the early models I have been around seem to idle rough as well. Thanks for the reply though
I think 42lb would really be overkill
I think 42lb would really be overkill
Pro
Joined: Jun 2007
Posts: 632
Likes: 6
From: St. Louis Missouri
I don't know what would be better. I would scan and check the duty cycle on your injectors. You would probably want them at 85% duty or under.
FWIW, 1999 & 2000 Vettes got 26# injectors instead of the 28s.
FWIW, 1999 & 2000 Vettes got 26# injectors instead of the 28s.
Last edited by TooMch; Apr 16, 2009 at 03:03 PM. Reason: typo
Thread Starter
Burning Brakes
Joined: Nov 2001
Posts: 812
Likes: 1
From: Sherman Texas
I thought the 2000' were kinda odd.. That is why I was looking for more input, I though maybe GM tried something on the 1999 and 2000's only to go back to larger injectors later on.
Tech Contributor
Joined: May 2008
Posts: 2,843
Likes: 16
From: Howell Michigan
St. Jude Donor '09-'10-'11
Have you tried running some Techron through the fuel system? I have a 2000 LS1 that idled rough until two treatments with Techron. It is smooth and throttle response is much better. Has the fuel filter been changed?
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
