I have been reading alot about crackle-cure and was wondering if anyone has input about the DFA crackle cure kit for the 99-2003. Im not planning on doing the tank mods for awhile so I wondered if this would be a reasonable way to quiet down injector noise and get a little smoother running truck.1 concern is the rubber hoses and 2 does it get rid of trapped air properly. All suggestions welcome.

 

I installed DFA's trial kit and wrote a long report on it. Check out the link in my sig. It works and is worth it.

 

F250 Thanks for the reply. Was it hard to install, and were there plenty of instructions, also was there a 9breakin0 period or did it work properly from the start.

 

Tedious install, not hard. The initial instructions were a little sparse for me, but I wrote up a very detailed installation procedure, complete with pictures, which is included in my report. There was a short break-in period, less than 100 miles.

 

6spd where do you live? I have my own version of that kit installed and it's well worth the time and effort to put it in. The engines sounds so much better after it's done.

 

Kwikkordead what is your version ths is something I be looking at and wanting to do

 

I made it myself from some fuel injection rated fuel line and NPT fittings purchased at the hardware store.
It's basically the same design as FN74's system and I think he got the idea from me.
Good for him that he has the energy to put something together and sell it. I already have a busy shop to run.

https://www.ford-trucks.com/forums/2...el-supply.html

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kwik I live in Ore(portland area) .Im not sure how to look at your pics on the web site you sent me to from your other thread.I would like to see your lay out of the cc mod.

 

i guess i'm still confused on some of this .. I've seen the cackle cure photos .. how close to a "regulated" return system is it ?

 

You are closer to FN74 than to me. The reason that I was asking is you have to hear the difference that it makes to really appreciate it. A microphone or a carefully worded description simply cannot pick up the good sounds.
What I was hoping to suggest to you is listen to one of these engines that has been modified.
And even if you cannot get that done, you have the knowledge that any excess air that makes it's way into the fuel rails is purged back to the fuel return line.
The only other way out is through one of the fuel injectors and that's pretty hard on them internally.

The regulated return system is a better system, but it costs more.
ALL of the fuel that gets pumped goes through the head rails before it passes through the pressure regulator or a fuel injector.
The cackle cure system branches off like the stock design with most of the fuel passing through the outer mesh of the fuel filter and back to the tank via the pressure regulator.
The only fuel that passes through the filter is the fuel that is sent to the head rails and the air bleed orifice.

 

I do ineed live in Portland, well at least on HWy 30 Just outside Portland. I would more than happy to meet up with you, and show you first hand a CC kit, and my truck. ALthough the CCK as I sell it is not on my truck. I have a very highly modified fuel system(s), and a bunch of other stuff beyond the context of this thread.

I know it is hard to believe something so seemingly simple can make such a big differance, but it does.

I should also add that one of the BIG benefits of the CCK, and Dans mod is not only the air bleed, but the balancing of the fuel pressure rails. In OEM form, the #8 injector is at the end of the fuel rail, and receives leftovers from #6 which fires immediately prior to #8. Part of the CCK is cross connecting the two deadhead ends which does 3 things, balances fuel pressure between the rails, almost doubles the fuel rail volume adding a substantial reserve, and now places #8 effectively in the middle of the fuel rail, and not at the end. It can now draw fuel from two directions, not just one. Now the limiting factor for power is the flow of the OEM pressure snubbers/check valves. However I have tested those to flow over 30gph each at stock fuel pressure. Only after you have installed some very serious injectors will that become a limitation.

Long story short, the CCK is designed as a cost effective alternative to reap the benefits of a full regulated return for those trucks below 500hp.

 

Well we've been down this road a few times. There are many ways to tackle this but I say start at the source, and that is in the tank. Even then, air can still get there from sloshing etc. Back in a minute.

So Jason has a product to address this problem and it works well from what I understand. For those that like to fart around themselves, I submit my still not completed thread inspired by Dan's (Kwikk) DIY system. DIY is not for everyone.

https://www.ford-trucks.com/forums/597328-diy-fuel-system-writeup-underway-wow.html