fast 102mm fuel injector / rail help

Reply Subscribe

Thread Tools

Search this Thread

Jun 3, 2010 | 09:29 PM

1bigcam

Thread Starter

TECH Apprentice

iTrader: (9)

Joined: Jan 2007

Posts: 354

Likes: 0

From: york pa

fast 102mm fuel injector / rail help

just got my fast 102 today and i put my ls2 stock rails and injectors on it, it dont seem like the injector fits down in the intake all the way. Anyone eles have this trouble? I just want to make sure it wont leak thanks mike

Jun 3, 2010 | 11:09 PM

RyanSws6

12 Second Club

iTrader: (72)

Joined: Jan 2008

Posts: 827

Likes: 1

Mine does the same thing. Runs good but I've yet to get it dyno tunned. I did buy the install kit.

Jun 3, 2010 | 11:51 PM

1bigcam

Thread Starter

TECH Apprentice

iTrader: (9)

Joined: Jan 2007

Posts: 354

Likes: 0

From: york pa

whats the install kit do ??

Jun 3, 2010 | 11:54 PM

402GOAT

10 Second Club

iTrader: (2)

Joined: Sep 2009

Posts: 426

Likes: 0

From: Cape Gir., MO

If you use your stock rails injectors you need the spacer kit. Call comp tech service and they will know exectly what you need and you can order staight from the tech.

Jun 4, 2010 | 12:48 AM

djjonesivs

Staging Lane

iTrader: (2)

Joined: Dec 2009

Posts: 76

Likes: 0

From: wethersfield, ct

you dont need a spacer kit if your running ls2 injectors and fuel rail.

you DO need a spacer kit if its ls3 fuel rail and injectors.

Jun 4, 2010 | 03:29 AM

402GOAT

10 Second Club

iTrader: (2)

Joined: Sep 2009

Posts: 426

Likes: 0

From: Cape Gir., MO

Been there done it ya need em but listen to whom ever you like

or get fast rails and injectors. They look beter anyways

Jun 4, 2010 | 06:58 AM

Aussie 6L

Staging Lane

Joined: Nov 2009

Posts: 57

Likes: 0

From: Australia

I didn't like the spacer kit(the injector squirts at the spacer) so got some cnc custom made fuel rails. I'm in Aust so couldn't be bother waiting for FAST rails

This is a pic of spacer

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

Pouria Savadkouei

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

Verdad Gallardo

7 Most Reliable High-Performance Engines GM Has Ever Built

Verdad Gallardo

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

Verdad Gallardo

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

Pouria Savadkouei

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

Verdad Gallardo

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Pouria Savadkouei

Top 10 Most Powerful Chevy Trucks Ever Made!

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Verdad Gallardo

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

Verdad Gallardo

Jun 4, 2010 | 11:35 AM

1bigcam

Thread Starter

TECH Apprentice

iTrader: (9)

Joined: Jan 2007

Posts: 354

Likes: 0

From: york pa

found out what my problem was. the top shell of the intake was not seated in the lower part all the way, fixed that last night the injector fits down in the intake alot better now

Jun 4, 2010 | 06:55 PM

#10

ramairws6

9 Second Club

iTrader: (33)

Joined: Sep 2004

Posts: 2,013

Likes: 85

From: Hicksville MN!

Quote:

Originally Posted by Aussie 6L

I didn't like the spacer kit(the injector squirts at the spacer) so got some cnc custom made fuel rails. I'm in Aust so couldn't be bother waiting for FAST rails

This is a pic of spacer

Nice rails dude...........they are sweet!

Jun 8, 2010 | 06:33 PM

#11

smok'nZ

MASS seller approved

iTrader: (160)

Joined: Apr 2006

Posts: 1,960

Likes: 3

From: OKLAHOMA

Quote:

Originally Posted by 1bigcam

found out what my problem was. the top shell of the intake was not seated in the lower part all the way, fixed that last night the injector fits down in the intake alot better now

man i had a hard time gettingf mine to seat down but finally got it on there

Jun 8, 2010 | 07:59 PM

#12

Unaffliated Racing

Registered User

iTrader: (15)

Joined: Nov 2002

Posts: 873

Likes: 1

Quote:

Originally Posted by 402GOAT

Been there done it ya need em but listen to whom ever you like

or get fast rails and injectors. They look beter anyways

This manifold was designed around the LS2 rails and injectors. No kit is need if using LS2 stuff. If you were to run a space on LS2 injectors, the rail wouldn't bolt flush.

Jun 8, 2010 | 10:54 PM

#13

1bigcam

Thread Starter

TECH Apprentice

iTrader: (9)

Joined: Jan 2007

Posts: 354

Likes: 0

From: york pa

the bolts that came with my intake for the rail are to long i had to use a thick washer under the bolt

Jun 8, 2010 | 11:30 PM

#14

smok'nZ

MASS seller approved

iTrader: (160)

Joined: Apr 2006

Posts: 1,960

Likes: 3

From: OKLAHOMA

i used ls2 rails and stock style injectors

Jun 9, 2010 | 11:54 PM

#15

dnkynrbk

9 Second Club

iTrader: (34)

Joined: Mar 2005

Posts: 2,248

Likes: 0

From: SPRINGFIELD MISSOURI

wow thanks for the info

Jun 13, 2010 | 08:49 PM

#16

LT1Formula007

10 Second Club

iTrader: (66)

Joined: Mar 2007

Posts: 1,378

Likes: 0

From: Indianapolis, IN

OK! So I have a quick Question. And this may help out quite a few people here.

Which Fuel Rails and Injectors would I need to make the FAST 102/102 setup work on my engine? (403 LS2 Stroker with LS6 Heads)

I have a set of Delphi/Lucas 42 lb. injectors From Speed Inc. and a set of Nasty Performance Billet Fuel Rails now. They fit perfect on my FAST 92/92 setup, But I'm selling the 92/92 setup Wednesday to my brother. I don't want to sell the fuel rails unless I have to, But I wanna know if these will still work on the FAST 102 Intake! Will They still work on the FAST 102mm Intake? Or do I have to sell the Billet Fuel Rails and injectors. Or do I need the spacer kit?

Thanks

James

Jun 14, 2010 | 10:33 AM

#17

Nasty N8

FormerVendor

iTrader: (33)

Joined: Feb 2002

Posts: 5,052

Likes: 0

From: Lake in the Hills, IL

The 92 intake was LS1 based and LS1 stuff will NOT fit on the FAST 102. I have new specific rails to fit the FAST 102 with short (LS3/7 style) inj. or tall (LS1/Bosch) inj.