Stock injectors are not enough. A tuner kit does not come with injectors or a tuning device because the "person/tuner" buying it will be buying bigger injectors and tuning device separately. That's why they call them tuner kits.
If I had done exactly what you recommend, I would not have had the issues that I did. Dogged point machine screws and enlarging the hole in the mounting tabs. Would have made a world of difference. Thanks. Excellent ideas...Given the number of issues with the fuel rail mounting, it makes sense to mock it all up on the benchtop first and try to discern if there's any misalignment or other issue. I also had the idea to use some studs into the blower housing, but it's hard to tell if they'd prevent you from seating the injectors since you kind of need to come straight down onto them first.
Honestly it might be wise just to oversize the holes in the fuel rail mounting tabs to start with, give yourself a little extra wiggle room, and changing the hardware to some half dog or full dog point machine screws would definitely help getting them started as long as the blind hold they're going into is deep enough to get good thread engagement.
Edelbrock is probably looking into this and other issues, and it's the enthusiast community that often drives refinements in the design, so thanks to @mikengail and others for making it known.
I don't think so on the 18-19 cars, even the Stage 1 kits with the tuner still don't come with injectors. Hence why I was asking because I thought it was odd as well. On 15-17 cars I think they do though. Was just hoping someone could clarify.
Sorry, I did not know that. If that's the case I wonder if 18+ come with the 50lb injectors from the factory?
I am not sure what the factory injectors are but they aren't the 50 lb. That 50 lb do infact come with the stage 2. I think they are just relying on the extra fuel from the di system.
I have this same issue, but on drivers side. Added DW 95lb injectors and the top hats were leaking fuel like crazy when the fuel rail was bolted down. I had to back off the screws quite a bit to get them to seal so they wouldn't leak. The fuel rails are the only part on this kit that I think wasn't engineered very well.
It is the angle, tightening the screws down causes the top hats to tip inward and this allows the fuel to leak out of the top hat. DW 95s are same length as LU47s that were originally shipped with my stage 1 kit. The difference is that aftermarket injectors usually have these top hats that allows them to extend to the same length as the LU47 body length, top hats are similar with ID1050x, etc, but unsure if those would leak.Was it the angle or are the DW95s too tall?
Another option that might be good is to oversize the holes in the rail mounting tabs and use a single flange rubber bushing, and attach with a shoulder bolt. That way the rail can settle where it wants to be and still can't pull up off the injectors.
Not sure if this is going to help' but I’m running the DW95s with top hats.It is the angle, tightening the screws down causes the top hats to tip inward and this allows the fuel to leak out of the top hat. DW 95s are same length as LU47s that were originally shipped with my stage 1 kit. The difference is that aftermarket injectors usually have these top hats that allows them to extend to the same length as the LU47 body length, top hats are similar with ID1050x, etc, but unsure if those would leak.
DW95, the leak happens where the clip is on the top hat.
LU47, no top hats, no leak.
Wondering if anyone is using other injectors with a solid body at or above 95 lbs/hr, aka 1000cc+?
Not sure I can answer the first part yet, I haven't mocked anything up to see what's what. I think it's M8x1.25 hardware so maybe 10 mm and use a washer. Don't quote me on that, may be M6 or something else entirely. It also might not be easy to find dog point socket cap screws, you can always make your own with a grinder and a little patience, and a die to chase the threads when you're done.
Ok, my tuner just texted me. 638rwhp / 577rwtq at 18 degrees on 91. 652rwhp at 20 degrees. He is recommending no more than 18 degrees at this altitude for now (5534'). Should be fun...
