Brackets don't line up and injectors won't fit!

[Spoolin]

Got my XT the other day and was pretty excited about getting it together and put on. Here are some pics of it.

http://i72.photobucket.com/albums/i189/Flovian/Parts/CIMG3785.jpg

http://i72.photobucket.com/albums/i189/Flovian/Parts/CIMG3786.jpg

Did a mock up on my engine before stickin it on the shelf for a few days until the rest of the vehicle is ready, looks kinda good...

http://i72.photobucket.com/albums/i189/Flovian/Parts/CIMG3788.jpg

http://i72.photobucket.com/albums/i189/Flovian/Parts/CIMG3791.jpg

[Spoolin]

So anyways, I get my fuel rail kit a few days later which is not a big deal but I go to put it on with my injectors and the freaking brackets are :turd:
I have 2.5" 72lb injectors and the first and last injectors won't sit flush because they hit the fuel rail brackets! :confused:

http://i72.photobucket.com/albums/i189/Flovian/Parts/CIMG3845.jpg

http://i72.photobucket.com/albums/i189/Flovian/Parts/CIMG3847.jpg

http://i72.photobucket.com/albums/i189/Flovian/Parts/CIMG3848.jpg

Yeah like that's not gonna leak fuel!!

[Spoolin]

Looks like they did a decent job of boring out a slot in the runner for the injectors but they didn't bother to make a groove in the bracket so the injectors can clear...:confused: How's that make any sense?

http://i72.photobucket.com/albums/i189/Flovian/Parts/CIMG3849.jpg

http://i72.photobucket.com/albums/i189/Flovian/Parts/CIMG3842.jpg

Not to mention the bolt holes in the bracket don't line up with the pre-drilled holes in the intake so of course one of the bolts doesn't quite line up right and it stripped the threads in one of the holes. Figured since it's already screwed up might as well tighten it in and never take that bolt out again but I then find out I need to modify the brackets just to make the injectors fit. Kinda crappy quality control IMO.

[CE_BRENT]

Thanks for the pictures and we will revisit these parts. Our adaptor bracket was first developed for other applications and re-used for this LS manifold. The fat injectors fit on the other manifolds, but as you point out we can skinny the bracket down for future runs and improve this application. We didn't have a problem because we tend to use either compact PICO style or the tall skinny Siemans (Edelbrock PN 3686) injectors.
Please note on your installation you should have used the washers for the longer bolts that run through the fuel rail and adaptor bracket. Button head fasteners don't use washers. By using the washer you shorten your thread engagement.

good luck with the rest of the project and keep us posted.

[Spoolin]

Thanks for the pictures and we will revisit these parts. Our adaptor bracket was first developed for other applications and re-used for this LS manifold. The fat injectors fit on the other manifolds, but as you point out we can skinny the bracket down for future runs and improve this application. We didn't have a problem because we tend to use either compact PICO style or the tall skinny Siemans (Edelbrock PN 3686) injectors.
Please note on your installation you should have used the washers for the longer bolts that run through the fuel rail and adaptor bracket. Button head fasteners don't use washers. By using the washer you shorten your thread engagement.

good luck with the rest of the project and keep us posted.

Thanks for the Reply Brent! Not quite sure I follow what you mean about the washers though. The directions that came with the fuel rails were not very clear at all, but I assumed since there were 8 button head bolts and 8 accompanying washers that they were meant to go with each other. :confused:

Anyways, this is what I've come up with so far, I've thrown around the idea of countersinking the brackets on a drill press and getting some countersink screws but before I do that I chose to shave down the brackets in the following way...

This is my first run shaving off the excess material on the brackets...
http://i72.photobucket.com/albums/i189/Flovian/Parts/CIMG3884.jpg

After putting them on it cleared the lower portion of the injector well enough but still got hung up on the upper portion of the injector...

http://i72.photobucket.com/albums/i189/Flovian/Parts/CIMG3889.jpg

[Spoolin]

I put the brackets back under the grinder for one more pass so that they could clear the upper portion of it. While I was there I had originally decided on flattening down one side of the washers, but eventually that became a moot point as you'll see later.

This is what the brackets looked like in order to make them fit...
http://i72.photobucket.com/albums/i189/Flovian/Parts/CIMG3989.jpg

This is with the brackets mounted and the washers on, not aligned yet as you can see...
http://i72.photobucket.com/albums/i189/Flovian/Parts/CIMG3983.jpg

I know that only one bolt is really necessary but because of the hack job I'm doing on the brackets I'm putting two on for the peace of mind it will give me.

Anyways, with the bracket material out of the way the next thing that the injectors hit is the bolts themselves which told me that the Bracket + washers + bolts were too tall of a combination for the injectors to fit...
http://i72.photobucket.com/albums/i189/Flovian/Parts/CIMG3985.jpg

So I decided to take out the washers completely and put the bolts in without them...
http://i72.photobucket.com/albums/i189/Flovian/Parts/CIMG3987.jpg

The washers, unless I'm missing something are only there to add additional surface area to the clamping force of the bolt. Their not gonna keep the bolt from walking itself loose/keep the bolt tight. They are just there to prevent the bracket from being bent in by the bolt head and provide more clamping force to keep the brackets in place. Regardless there was no other way to make the injectors fit so for now, this with a little loc-tight is the best way I can figure short of countersinking the brackets.

[Spoolin]

Thanks for the pictures and we will revisit these parts. Our adaptor bracket was first developed for other applications and re-used for this LS manifold. The fat injectors fit on the other manifolds, but as you point out we can skinny the bracket down for future runs and improve this application. We didn't have a problem because we tend to use either compact PICO style or the tall skinny Siemans (Edelbrock PN 3686) injectors.
Please note on your installation you should have used the washers for the longer bolts that run through the fuel rail and adaptor bracket. Button head fasteners don't use washers. By using the washer you shorten your thread engagement.

good luck with the rest of the project and keep us posted.

Also Brent, Prior to the XT I had a Victor Jr. and as you stated these injectors worked well on that intake because of the available spacing that accompanied the fuel rail bracketry. I don't have a clear picture of the intake with the injectors in but you can see from this picture all the space provided for in order to fit different injectors.

http://i72.photobucket.com/albums/i189/Flovian/Parts/VicJrwithrails.jpg

I also realize that the XT was designed for the pico style or the skinny siemens injectors but all injectors that I know of that are this size (72lb'ers) or the larger 96lb'ers that I'm gonna need in a few months are wide bodied in order to house the larger solenoid. So this intake as of now is limited in it's application if I'm not mistaken, no? I don't see what the need was to place the brackets so close to the injectors to begin with. There is plenty of available real estate on the intake to locate two brackets without having to put them so close to injector holes that it was bound to cause a problem. I think over engineering would be an appropriate term here.

[Spoolin]

Well...she runs finally! :)

http://www.youtube.com/watch?v=r1SNGCSqdNY

[ahpu99]

I recently bought the PF XT manifold to fit my BB Mopar. The exact same brackets were supplied with it and just like this post they don't allow the injectors to align correctly. I am also using Bosch EV1 style injectors and the larger body hits the bracket . Prior to purchasing I did call the tech line to confirm that these injectors would work and after much checking the tech said they would. Now I will have to half ass the brackets similar to this application and it is a shame. The instructions are weak at best and it is frustrating to have to fix something that should have been thought of previously.
Is there any better fix than than what is shown here?