cp3 dual feed line [Archive] - Diesel Place : Chevrolet and GMC Diesel Truck Forums

: cp3 dual feed line


sdreese
08-31-2009, 12:27 PM
has anyone ever installed a dual cp3 fuel feed line on their lb7? how does it work? would it make a difference to the amount of fuel to the rail? any idea's or thoughts on this topic would be greatly apperciated. thanks

bigchev
08-31-2009, 05:16 PM
has anyone ever installed a dual cp3 fuel feed line on their lb7? how does it work? would it make a difference to the amount of fuel to the rail? any idea's or thoughts on this topic would be greatly apperciated. thanks

I have had the Industrial Injection Dual Fuel Line Kit on my truck for 2 1/2 years. Just replaced the line because of leak. This kit is not an easy install and I would not do it again unless I was removing the required parts for another reason.., i.e. changing CP3 pump.

As far as any increase in performance is concerned I would say that it is minimal. Good Luck!!

pacougar
09-01-2009, 10:13 AM
I'm doing one right now, but I'm also doing it with a 85% over Dragon Flow CP3. I'm not sure you would gain much from it with a stock CP3. Also, it's very very easy to install(when your changing your CP3). Otherwise it would be a mother F!

sdreese
09-01-2009, 01:37 PM
well how is the secondary fuel line set up? do you put a splitter coming into the pump going to rail? also, if you upgrade your inj. pump should you change your injectors to upgrade for extra fuel the pump is putting out or should they be fine?

pacougar
09-01-2009, 03:28 PM
I Don't believe you'll see any real benefit from upgrading you pump without bigger injectors. If you want a bit more you can upgrade to a LBZ pump but after that you'd have to have your injectors open to long to get any more fuel in the cylinders. The dual feed line comes out of the bottom of the pump and goes into the fuel block where the return relief valve is. Then the valve hangs in the breeze attached to the return line. Also there's full instructions on II's website.