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

Fuel rail question...

Thread Tools
 
Search this Thread
 
Old Aug 17, 2006 | 05:46 PM
  #1  
Slow Z28's Avatar
Thread Starter
TECH Junkie
iTrader: (19)
 
Joined: Nov 2001
Posts: 3,337
Likes: 2
From: My house
Default Fuel rail question...

Any of the sponsors or any other shops make a rail that bolts up to the ls1/ls6 style intakes like the nasty/speed inc rails that instead of the 3/8" npt, they are -8 fittings?

i have a set of aftermarket rails that are for an aftermarket intake, and all the fittings i have are -8 stuff. just don't want to spend all that dough again on the fittings/hose/etc...

otherwise i have to figure out a way to mate up these rails to work on a stock intake and I don't trust stuff like that.

Chris
Reply
Old Aug 17, 2006 | 06:19 PM
  #2  
JZHeyde's Avatar
Launching!
iTrader: (30)
 
Joined: Oct 2005
Posts: 282
Likes: 0
Default

Correct me if I am wrong, but wouldnt you just need a 3/8 pipe to -8 fitting? This would leave you with a -8 male fitting on the end of the nasty fuel rail. I have the nasty rails on my car and have a 3/8 pipe to -6 fitting on it. Im sure they make a fitting with the -8 end.

Just my thoughts...

-Jamin
Reply
Old Aug 17, 2006 | 06:35 PM
  #3  
Slow Z28's Avatar
Thread Starter
TECH Junkie
iTrader: (19)
 
Joined: Nov 2001
Posts: 3,337
Likes: 2
From: My house
Default

yeah, i know. but that means i'd need 3 of the 3/8 to -8 fittings and then a 3/8" plug fitting. just trying to avoid the $15/piece for the fittings

each part of the rail fits an -8 to -8 male, then the hose has it's fitting that is a -8 that gets screwed on the male end that is in the fuel rail
Reply
Old Aug 17, 2006 | 08:10 PM
  #4  
SVC707's Avatar
TECH Fanatic
20 Year Member
iTrader: (33)
 
Joined: Aug 2002
Posts: 1,424
Likes: 3
From: Bay Area, Ca
Default

so you want a rail that already has a -8an permanently on the end. im not following you
Reply
Old Aug 17, 2006 | 08:17 PM
  #5  
Slow Z28's Avatar
Thread Starter
TECH Junkie
iTrader: (19)
 
Joined: Nov 2001
Posts: 3,337
Likes: 2
From: My house
Default

sorry guys.

but yes, if you go through summit, it lists out the -8 size fitting that would get screwed into the rail. it's not the 3/8 npt size that speed inc normally carries

http://store.summitracing.com/partde...5&autoview=sku


like that, but with the ability to have that same Speed Inc. style hold down.
Reply
Old Aug 17, 2006 | 08:30 PM
  #6  
SVC707's Avatar
TECH Fanatic
20 Year Member
iTrader: (33)
 
Joined: Aug 2002
Posts: 1,424
Likes: 3
From: Bay Area, Ca
Default



so youre saying its too much hassle or too much $ to put the adapter to the -an fitting
Reply
Old Aug 18, 2006 | 11:27 AM
  #7  
Slow Z28's Avatar
Thread Starter
TECH Junkie
iTrader: (19)
 
Joined: Nov 2001
Posts: 3,337
Likes: 2
From: My house
Default

both

my current rails, the fittings that go into them are -8 o-ring to -8

since i need rails either way, i don't feel like buying rails that are the 3/8npt and having to get a 3/8npt to -8 female connector

i like things uniform and getting the correct parts. not buying different adaptors just to make something work. i wouldn't have to by JUST ONE adaptor.

I'd need a 3/8npt plug for the passenger side front of the rail (i'd have the -8 laying around then)

then i'd need (3) 3/8" npt to -8 female connectors so that I could adapt my current AN fittings to the smaller rails
Reply
Old Aug 18, 2006 | 11:31 AM
  #8  
SVC707's Avatar
TECH Fanatic
20 Year Member
iTrader: (33)
 
Joined: Aug 2002
Posts: 1,424
Likes: 3
From: Bay Area, Ca
Default

so you need more fittings than what i have there?
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

 Brett Foote
story-1

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

 Pouria Savadkouei
story-2

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

 Verdad Gallardo
story-3

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-4

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

 Verdad Gallardo
story-5

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

 Pouria Savadkouei
story-6

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

 Verdad Gallardo
story-7

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-8

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-9

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
Old Aug 18, 2006 | 11:39 AM
  #9  
Slow Z28's Avatar
Thread Starter
TECH Junkie
iTrader: (19)
 
Joined: Nov 2001
Posts: 3,337
Likes: 2
From: My house
Default

well, looks like i'm just being difficult.

i'm just trying to use what i have available without having to discard of the other AN fittings I just got. So those are 3/8npt to -8 fittings in those rails, correct? looks like no response from nasty, and i know speed inc. doesn't, so looks like this is my only answer
Reply
Old Aug 18, 2006 | 11:41 AM
  #10  
SVC707's Avatar
TECH Fanatic
20 Year Member
iTrader: (33)
 
Joined: Aug 2002
Posts: 1,424
Likes: 3
From: Bay Area, Ca
Default

yeah i can get the part numbers when i go back home for the -8an with 3/8th. i am running speedinc rails too so they fit
Reply
Old Aug 18, 2006 | 01:54 PM
  #11  
davered00ss's Avatar
Moderator
iTrader: (4)
 
Joined: Nov 2003
Posts: 10,520
Likes: 0
From: Plainfield, CT
Default

My FAST kit came with those adapters.
Reply




All times are GMT -5. The time now is 07:37 AM.

story-0
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Don't get dad new socks or a grill brush this year.

By Brett Foote | 2026-06-09 14:55:56


VIEW MORE
story-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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-9
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