Need help with Speed Inc fuel rail install....
Thread Starter
Le Mans Master
Joined: Sep 2002
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From: Redacted
Need help with Speed Inc fuel rail install....
So I ordered a set of Speed Inc's aftermarket fuel rails along with the hose/fittings kit to hook them up to the factory fuel line/system. My only problem is that I now have a box full of very nice billet fuel rails, braided fuel line, and a plethora of fittings, but no instructions. Now I realize this isnt that complicated, and could probably be figured out in an afternoon, but I was hoping that anyone with some experience installing any aftermarket fuel rails could help me out with some tips, or at least a direction in which to start. Perhaps Ill take some pics and post a write up for others to use after I get this all sorted out. Thanks for any and all help!!
Race Director
Joined: Sep 2005
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From: Pasco WA
Is this to fit on an LS6 mani, or FAST? If stock, did the kit come with pedestals to connect to the mani? When you remove the stock rail, the mounts are all connected, as you well know. If they didn't send pedestals, maybe that's where you're confused? GL, Dave, I may be wrong, but on a basically stock motor, this mod is largely cosmetic, no?
Last edited by zeevette; Aug 10, 2011 at 03:58 PM.
Thread Starter
Le Mans Master
Joined: Sep 2002
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From: Redacted
Thats correct...this is purely cosmetic....Ive also deleted the AIR system, relocated the coil packs, and installed aftermarket valve covers. The LS is actually starting to look like a SBC after all.
These are for an LSX intake and did come with the pedestals. Ive got everything mocked up on my dining room table, I think the big problem is that with the fuel line entering the aft driver's side fuel rail, I dont think there's going to be enough clearance under the cowl to stuff everything back there. Im going to have to mess with it for a bit as I am pretty opposed to cutting the cowl
These are for an LSX intake and did come with the pedestals. Ive got everything mocked up on my dining room table, I think the big problem is that with the fuel line entering the aft driver's side fuel rail, I dont think there's going to be enough clearance under the cowl to stuff everything back there. Im going to have to mess with it for a bit as I am pretty opposed to cutting the cowl
Thread Starter
Le Mans Master
Joined: Sep 2002
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From: Redacted
is there any reason why the fuel has to enter the fuel lines on the driver's side?? Ive actually got enough room to run the fuel line along the firewall, behind the intake to the back side of the passenger side fuel rail.
Tech Contributor
Joined: Jan 2007
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From: Dyer, IN
Same rules apply to a jet and a car. You don't want fuel lines rubbing, even if they are stainless. Make sure there is adequate room for the line to move freely. If I remember correctly, my friend had to have his Speed Inc fuel rails machined, so he could run the fuel line to the rear of the rails.
Race Director
Joined: Sep 2005
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From: Pasco WA
I agree. If possible, adapt the fittings to approximate the same area as stock, for the fuel line hookup. Also, there's a blocker plate on the stock rail for safety reasons, and it should have been removed, leaving room for the rear of the driver's side.
Race Director
Joined: Dec 2004
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From: Haymarket VA
Are you asking about how to cut the stainless hose and install the AN fittings? There are a bunch of videos on the web.
Thread Starter
Le Mans Master
Joined: Sep 2002
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From: Redacted
Because Ive removed the AIR system, and the AIR tube that ran behind the intake, I have sufficient room back there to run the fuel line, secure out of the way so as not to rub on the intake) across the fire wall and into the driver's side rail. I just want to make sure that will in no way affect fuel flow to the motor.
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Thread Starter
Le Mans Master
Joined: Sep 2002
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From: Redacted
New problem
Please excuse the low quality pic.....but Ive started to test fit everything, and notice that the driver's side sits about an inch farther aft than the passenger side rail. Anybody know if there's a specific driver's and passenger's side rail? Possibly they sent me two of one side?? I know I have the mounts on properly because theres only one possibly way for them to go on.
Tech Contributor
Joined: Jan 2007
Posts: 19,493
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From: Dyer, IN
Please excuse the low quality pic.....but Ive started to test fit everything, and notice that the driver's side sits about an inch farther aft than the passenger side rail. Anybody know if there's a specific driver's and passenger's side rail? Possibly they sent me two of one side?? I know I have the mounts on properly because theres only one possibly way for them to go on.
http://forums.corvetteforum.com/c5-p...rails-red.html
Thread Starter
Le Mans Master
Joined: Sep 2002
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From: Redacted
Well thats just dumb. Besides looking stupid, you'd think that they'd have the driver's side rail being farther forward to allow for more clearance to get the fuel line in on the back side of that rail......not at all impressed with this set up.
Race Director
Joined: Dec 2004
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From: Haymarket VA
The rails are the same. Having done mine, I don't se anyway to run the rail and AN fitting on the back of the rail without "clearancing" the fire wall. There's nothing behind there and it doesn't open it up to the interior.
Thread Starter
Le Mans Master
Joined: Sep 2002
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From: Redacted
agreed....Ill mess with it some more tomorrow. Any chance you could post a pic of your engine bay?? I know you've sent me one before, but I lost it when my old computer went belly up. Thanks!
Tech Contributor
Joined: Jan 2007
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From: Dyer, IN
So instead of having the fuel rail machined down, you cut the firewall?
Thread Starter
Le Mans Master
Joined: Sep 2002
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From: Redacted
I think he was talking more about the fiberglass cowl than the actual firewall. I think Im going to work on coming up with a safe way to run the fuel line to the passenger side....They send me more than enough line...plus I think that will make everything look a bit neater in the engine bay as well
