INSANEREINDEER

So I can't seem to get my injector to sit straight in my intake and rails. This is causing the O-rings to leak air past them. I have ebay fuel rails from FasterLLC. They seem to be fine but I have nothing to go off. My last stock injectors and 3/8" ebay fuel rails fit fine with no problems. I feel like I am missing something simple that causing the issue.

The injectors measure ~2.5". They are from FIC in Georgia. Bosche LS1 80lbs.

The injectors to me seem to short. They sit very close to the intake allen bolt. Is there something that is suppose to go below the inspectors in the intake? Any ideas on the issue?

roastin240

iTrader: (13)

I noticed mine were not aligned well into the manifold with my Ebay fuel rails. It is because the rail material hits the bolt/manifold location. I plan on grinding some clearance on the rails to make them fit.

INSANEREINDEER

This is exactly what I planned on doing if the rails are the problem. My other rails where the smaller at the bottom and they were only 3/8 inch. I assumed this is why they fit.

INSANEREINDEER

This is what I ended up doing. While it got the injectors at a better angle they still are not perfect. Hopefully it fixed the leaks though.

mike431987

iTrader: (1)

Iv been looking at getting a set of these on my ls2. I wonder if il have the same issues on my ls2

INSANEREINDEER

I asked the seller if he has ever had this problem before and he stated that he hasn't had anyone contact him about it. I bought these rails in October or November so it's been a while but he sent me another set of rails at no charge because these might have been defective. I don't think they are but I haven't looked at yet. The seller is definitely someone I would do business with again as he was pretty helpful with everything but I don't know if it was just my intake+his rails causing the problem or what. Atleast with the rails on the car you can't see that they have been modified at all.

mike431987

iTrader: (1)

well thanks for the info. seems like a pretty easy mod to do.

INSANEREINDEER

So this fixed my problem on one side and the other side it did not. I ordered oversized orings for Katech so maybe that will fix the problem completely. We shall see since they're LS1-LS2 orings.

mike431987

iTrader: (1)

keep us posted on if this fixes your issue still on the fence about this.

INSANEREINDEER

I drilled out the holes on the passenger side that didn't work and slid the mounts towards the trans as they seem to be learning forward. I did this the first time on the driver side which is also the side that didn't leak so we will see when I get to crank it again if it fixed it.

I went ahead and order the orings since they're cheap. I guess we shall see. Honestly I would choose different fuel rails knowing these have issues but as I said, it could be something in my setup causing the issue.

mike431987

iTrader: (1)

those injectors looks like my bosch ls2 injectors i just got from fic.

INSANEREINDEER

They're Bosche LS1 injector I got from FIC. O-Ring to O-Ring is a little over 2.5". I think LS2 should be around 2".

mike431987

iTrader: (1)

Yes you are correct. Those should prove to be good injectors jon at FIC is one of the best people iv ever had the pleasure to deal with. Him and bob at brute speed.

Bob@BruteSpeed

iTrader: (16)

Thanks, I really appreciate it!! Bob

roastin240

iTrader: (13)

I still havent put pressure to my rails or started the engine to see if I have manifold leaks. But with a stock LS6 intake manifold and injectors, these rails hit. Which seller did you buy from on Ebay? I am going to see if I bought from the same guy and if I can get a new set of rails. Maybe the extrusions are different now. If not then I will at least have another set of rails I can take my time to mount up on the mill at work and machine out nicely.