Which fuel rail kit?
Thread Starter
Melting Slicks
Joined: Jun 2012
Posts: 3,163
Likes: 6
From: Oceanside California
Which fuel rail kit?
I have the FAST92 intake installed and a set of FAST#36 injectors on the way. Im looking into the fuel rails and lines, but running into some confusion on the various kits offered. They all seem to be specifically for the 102mm intake. And the line kit has one that goes behind the intake, where there is really no room...
What is the setup needed for the 92mm?
What is the setup needed for the 92mm?
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Nuke
I have to ask.. Do you really think the stock C5 fuel rails are a restriction?
Unless you want pretty fuel rails,, whats the desire to change them?
I am running 42 lb/hr on stock fuel rails making 450 RWHP.
I seriously doubt that you would gain anything other than looks.
BC
I have to ask.. Do you really think the stock C5 fuel rails are a restriction?
Unless you want pretty fuel rails,, whats the desire to change them?
I am running 42 lb/hr on stock fuel rails making 450 RWHP.
I seriously doubt that you would gain anything other than looks.
BC
Le Mans Master
Joined: Jun 2008
Posts: 5,284
Likes: 235
From: Rockledge FL
I thought that with the 92 you needed LS2 fuel rails? Or was that the 102?
Im curious about the 36lb injectors. That is a pretty good size motor for injectors that big. Im at 450 at the wheels with 30lb injectors and they are no where close to being topped out.
Im curious about the 36lb injectors. That is a pretty good size motor for injectors that big. Im at 450 at the wheels with 30lb injectors and they are no where close to being topped out.
Thread Starter
Melting Slicks
Joined: Jun 2012
Posts: 3,163
Likes: 6
From: Oceanside California
I guess my main reason to get the rails is to have my stock LS1 intake, injectors, and rails etc. all together as a unit, and my FAST set up all together as a separate one so that come emissions time, its an easy swap as a complete piece.
I have many things that I have to swap out and than go for a tune at emissions time every couple years. Once I modified the car past reasonably legal limits, I decided to keep all important stock parts safe and clean for use at smog time.
So I guess I would like to upgrade the rails to follow along with my plan of having a separate "emissions ready" set of parts. I know its not hard to swap the rail over etc. But when you have allot to think about when getting the car tamed back up, everything helps.
Plus the benefits of a good looking system and potential to help fuel flow when achieving more power will be nice.
To answer the injector question, I will be reaching around 410-420 whp with a H/C swap soon, then topping it with an A&A SC kit. This will also make the swap to after market fuel rails functional, rather than cosmetic.
I have many things that I have to swap out and than go for a tune at emissions time every couple years. Once I modified the car past reasonably legal limits, I decided to keep all important stock parts safe and clean for use at smog time.
So I guess I would like to upgrade the rails to follow along with my plan of having a separate "emissions ready" set of parts. I know its not hard to swap the rail over etc. But when you have allot to think about when getting the car tamed back up, everything helps.
Plus the benefits of a good looking system and potential to help fuel flow when achieving more power will be nice.
To answer the injector question, I will be reaching around 410-420 whp with a H/C swap soon, then topping it with an A&A SC kit. This will also make the swap to after market fuel rails functional, rather than cosmetic.
Racer
Joined: Jun 2006
Posts: 477
Likes: 1
From: Jefferson Georgia
I'm at 503whp and the stock rails are fine and in addition to that feeding a 150 wet shot of nitrous from the drivers rail. I was told by a reputable builder that until you're at about 800chp the stock fuel rails are fine. On giggle gas I'm about 750chp with a Walbro 255 pump and Kenne Bell boost a pump.
Thanks guys
