C5 Tech Corvette Tech/Performance: LS1 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

Fuel rail questions

Thread Tools
 
Search this Thread
 
Old Jan 28, 2019 | 06:56 PM
  #1  
Gunnmetalblue's Avatar
Gunnmetalblue
Thread Starter
Instructor
Supporting Gold
 
Joined: Dec 2014
Posts: 241
Likes: 17
From: Poway CA
Default Fuel rail questions

Thinking about installing these fuel rails: https://www.jegs.com/i/Holley/510/534-210/10002/-1
Before anyone asks why, and points out that the stock rail is fine or that I should just paint or powder coat the stock one let me say I know this is unnecessary. It is strictly for aesthetics.
I have a couple of questions.
1: Is the circled part of the stock rail the pressure regulator, and if so what would be the effect of the Holley rail not having one?


2: I live in California; will there be any negative impact to passing smog with aftermarket rails?
Thanks for your input.
Reply
Old Jan 28, 2019 | 08:16 PM
  #2  
StingrayRebel's Avatar
StingrayRebel
Acct Suspended APR 2026 by request
 
Joined: Dec 2010
Posts: 10,367
Likes: 1,272
2020 Corvette of the Year Finalist (performance mods)
C5 of Year Winner (performance mods) 2019
Default

the piece circled is a pulse dampener, your regulator is either part of the fuel filter or in your tank depending on the year of the car
Reply
Old Jan 28, 2019 | 09:17 PM
  #3  
Gunnmetalblue's Avatar
Gunnmetalblue
Thread Starter
Instructor
Supporting Gold
 
Joined: Dec 2014
Posts: 241
Likes: 17
From: Poway CA
Default

What potential issues from not having one on the Holley rails?
Reply
Old Jan 28, 2019 | 09:57 PM
  #4  
StingrayRebel's Avatar
StingrayRebel
Acct Suspended APR 2026 by request
 
Joined: Dec 2010
Posts: 10,367
Likes: 1,272
2020 Corvette of the Year Finalist (performance mods)
C5 of Year Winner (performance mods) 2019
Default

none, I don't have one on my rails and you would never notice it's missing (except for the look obviously)... if it will pass smog in your area I'm not sure but I don't see any reason why it wouldn't since that piece is not emissions related
Reply
Old Jan 29, 2019 | 02:32 PM
  #5  
megan.andrews's Avatar
megan.andrews
Intermediate
 
Joined: Nov 2018
Posts: 34
Likes: 0
Default

Usually a sustained full throttle test is to see whether the fuel rail can hold commanded pressure rather than hitting it briefly and then falling.
Reply

Get notified of new replies

To Fuel rail questions





All times are GMT -4. The time now is 09:21 PM.

story-0
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-1
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-2
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-3
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-4
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-5
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-6
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-7
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-8
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-9
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE