I have been thinkn of getting the daul feed line for the common rail from II. I did a thread search just so I could see what people already did. For those who did it, did you notice any difference with the stock cp3? Like what was said on the other threads thats alot of $$$ for the hose and such or is there any where else to get 1? Also is it semi simple? Could i get some in dept desciptions? Thanks for any help.

 

Save your money for a Stage 2 instead. It's too much money for what it is.

 

It is alot of money for what is. You can have one made up at a hydrualic hose shop for less. It will help out however, and is an improvement, and still cheaper than a CP3 (any stage)

 

I know some high hp trucks actually saw a loss in power when testing. It is assumed that it is from the turbulence.

 

I am not going to say that that is impossible, but what I am going to say is that does not make sense.

 

Well, the dyno testing is fact as far as what I was told. As to why is just speculation. It was explained to me like this...Normally the fuel enters the rail from one source and filling and pressurizing the rail. When you add the second feed it's coming from the opposite side and so it may cause turbulence within the rail by not having exact pressure at each inlet at all times, therefore disrupting the smooth constant feed to the injectors. As to this making sense or not, I don't have a good knowledge of pressure in applications such as this so I have no idea. All I know is that I was told that 2 different 700+hp trucks lost power when experimenting with the dual feed. Maybe someone who has played with adding this while on the dyno can let us know the results they got.

 

Exactly, that is what I was trying to say. The turbulence thing does not make any sense to me. You just have one line feeding one end, and the other line feeding the other. Fuel that gets unused gets returned.

 

Hmmm yeah those power drops you wouldnt think would happen. Just as long as the fluid and the pressure is in the barrel and the fluid will come out the bottom. Hmm, anyways...... Thanks for the help. I aint worried bout the power drop cause this aint no super duper high po machine. I guess im jus lookn for alil security. Has anyone put installed 1. Is it hard to do?? I saw it was supposed to be a do it yourself kinda thing.

 

I had mine blow. It never made of 25.5K before when I had it. To me that is not added security.

 

i talked to vendoe last week who said he had dynoed a truck and it lost power w one as well, he also said he knew of three wich have had burst lines do to the fact the line is so rigid and it has to turn at such an angle. one of wich he said actually cut a slice through the hood of the truck.

 

thats just plain scary.

 

Heck yeah boys thats just crazy!!!! Wonder why they would burst?

 

Hmmm so wonder if that would help or hurt now. Seems when i have the juice on 5 or 6 my truck likes to cut out when i shift to fast to much. I don't pull out hard just usually on off ramps. I kinda take it easy till 4th or 5th gear then i put the ole hammer down. I just figured that it was draining the rail and that, that would help. That sounds like it may not be the right answer. I could get one for a good price i hear. Hmmm?????

 

My Rail is draining as well, and I have stock injectors. The thing is, there is a line that feeds it, so that means a line can be made to handle the pressure. If a line burst, than obviously it was not tested under those pressure's.

Still curious to see how it could lose power. The only thing I can think of is this:

If teh pumping pressure's out of the port where teh second line is hooked up, is NOT the same or less, than maybe the line is backflowing???? You know, it enters under "x" pressure from teh stock location, goes through the fuel rail, and then pushes fuel into the new feed line because it is under less pressure?? I guess the only way to determine that would be to disconnect teh stock line and port and use only the aux port and new line, and see what fuel pressure you are seeing out of that side.

 

Pretty sure you can't just get one made at a hydraulic hose shop. It's been said before that nobody in the U.S. can build a line that's certified for these kinds of pressures.

It makes sense to me. Those two seperate flows have to collide somewhere. Doesn't the dual feed line also cap off the return line?