00pooterSS

iTrader: (40)

Anyone else having trouble with the fuel rail brackets (stanchions) that come with the FAST fuel rail kit and know of a bolt in bracket that cures the poor fit and fuel leak? The ones that came with the rails hold the rails up just a hair too high and the injectors are leaking.

After mounting the fuel rails on the manifold and building fuel pressure, we are seeing a leak on the driver side but not the passenger. During test fitting I noticed I was able to move the injector up and down a little bit with everything mounted and tightened.

Injectors and o-rings were installed correctly and o-rings were lubricated
All bolts and brackets were checked for proper fitment and torque

It appears the mount brackets are just junk, I found a couple threads where others said they had to make their own brackets. Anyone have a better idea? I would like to find some bolt in brackets that fit properly from the start, I don't want to put grinded up or rigged up brackets on this car.

Thank you!

JakeFusion

iTrader: (7)

Swap to LS2 rails or go back to the stock rails with the spacer kit. That's the best solution I can offer outside of fabbing up new brackets.

Undertow74

iTrader: (45)

I had the same problem in the drivers side rear injectors leaking. My fix was I had to put a small washer under the front stanchion. The rail on the drivers side actually sat pitched forward a bit, causing the rear injectors not to seat properly. Putting that washer under the stanchion leveled the rail out and allowed them to all seat properly.

Undertow74

iTrader: (45)

And make sure you are using the thicker injector o-rings, they should have came with the fuel rail kit.

ShevrolayZ28

iTrader: (4)

Mine didn't come with the brackets I needed. I spoke with someone at FAST and the sent the right ones.

00pooterSS

iTrader: (40)

I will look at using the spacers, on this set up when I took the bolts out of the side that are leaking the rail pushed out pretty far from the "natural position" so I bent the brackets out a hair and that helped but didn't fix it. So then I noticed that the rail needs to go further down on the back side. So I think I will drill that rear stanchion to lower the rail and go from there.

I didn't see another set of o-rings but the guy I did the work for pre assembled the manifold and rails. I believe the o-rings on the injectors are the ones that came with the injectors. I will look into that for sure.

Thanks man, I hope it doesn't come to that.

Were yours far off from the right fit? Or just a hair? These seem like they are the right ones because they appear to mount up just fine but leak. I would assume the wrong ones wouldn't even be close..?



Thanks everyone for the responses, I am going to go ahead and grind/drill on the stanchions (brackets) here in a little while to see if that fixes it, originally I didn't want to do this but the car needs to get to the tuner sooner than later.

ShevrolayZ28

iTrader: (4)

Mine were way off. Sounds like you have the right ones, but they need some tweaking.

It's a little frustrating that these nice rails don't come with better brackets. Typical aftermarket laziness, lack of attn to detail....I digress lol.

00pooterSS

iTrader: (40)

So I fixed it. Turns out it was my fault though. When I started this project there were no instructions with the manifold and the guy I am putting the car together for pre-fit the intake, rails and injectors... so I didn't know the fat o-rings had to be used, or where they were supposed to be used.

For anyone having this issue, if you are using LS1/LS6 style injectors (not LS2) you have to use the fat o-ring on the bottom of the injector. It states this in the instructions but not very clearly, it's actually a little confusing because it says to use those fat o-rings with "LS1/LS6 applications with factory fuel rail"

Thanks for the help everyone,

Undertow74

iTrader: (45)

ah Ha! see told you to make sure you were using the bigger O-rings on the injectors!! glad you got it figured out

00pooterSS

iTrader: (40)

Turns out the real problem all along was that FAST makes a shim kit for use with 60# injectors, after installing that the leaks have finally stopped. The stanchions etc were all fine.

Also I kept installing the injectors while leaving the intake mounted, don't torture yourself, take the intake out and put in your new O-rings, injectors, shims or whatever you are doing and fully assemble it then put it back in as an assembly