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Dual CP3's available next month!!!!

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Need silencer ring and snap clip for 2003

Limited Slip Diff Always Slipping?

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I'm on hold for -- cp3/injectors/railcap, modded relief valve -- upgrade, see what comes out a works well til spring. Then get this truck tuned in good, I'll be doing great. :-laf :-laf Oo. Oo.
 
Stefan Kondolay said:
I was talking with IdahoCTD (nathan) and he is finishing his set-up and it looks like it will actually be affordable. For those interested I would wait or PM him. $4000 seems real high for what is in the kit.



Yep, I saw him a couple of weeks ago and his will be out soon!



And like Stefan says "AFFORDABLE"!!!
 
PPE knows how to move fuel. I think the big thing here is going to be drivability. After talking with some folks, I have learned a bit about these dual CP# kits. Now, from my understanded, on ly one CP# is usually hooked to the compputer, and the onther one is not, and is just running flat out all the time. From my understanding the PPE kit actually tiese in to the FCA on both pumps andcontrols both pumps and that will make it drive better, have fewer pressuer spikes, and should help the CP3's last longer.



I agree that $4K is a bit much.
 
I wouldn't think that it would be hard to tie the 2 pumps together to work with each other...



Does anyone know what the price tag is on Nathan's kit???
 
to be honest, i have not seen anyone drain down a II modded cp3 yet. my point is that if there not draining the rail with one then why would you need two? plus that single modded is a lot cheaper!!!
 
It can't be that difficult to build a new rail, could it? I mean it's a tube with ports for the injector lines, and the one feed, correct? Build it out of whatever wall to withstand the pressure, and build it to hold twice the volume or what have you.



Nick
 
i think that the largest reason for the price is the extra cp3. Figure around $2,300 at retail for the modded cp3 with no core or a new pump. I think that a lot of guys may lose power rather than gain power with the dual cp3's. I've been having issues with the HP wall, and i think that air in and out is the next problem. I'm staying over 20 K psi right now with my II modded pump. If i stick one more modded pump on i can figure a HP loss of about 25-35HP from just the extra HP its going to take to run the pump. I think that are problem lies elsewhere in the fueling system, (ie. injector body, rail, lines, etc. ). Just my thoughts. I could be way off. Rember that the duramax has two more injectors and more cubic inch on us and may need that pump more. I'm sceptical when ATS has been playing with Dual cp3's for over a year now and they don't offer one for a dodge. Maybe they tried it and it didn't work.
 
I have been playing with and Modified rail for some time now the results have been encouraging,I sent a Mild rail to II Brett to install on is truck ,I am hoping this will get him over the 850 hill. The wild rail needs more cleaning up,the mild rail is re-machining of the Factory rail were the wild is completely new and can be machine for one or two feed lines. the new turbos simply supply more air than you can push fuel through that small stock feed line. . The only reason I can think of why NO one has done this mod sooner is, The Boring of the stock rail is a extremely difficult,We have ruin a few in the process. I am now trying to fine as many used stock rails as possible,of course I can purchase them New, that would only result in higher cost. For details you may contact us or PM. Not trying to steel this thread just trying to share Info. .
 
i agree, lets look at the new 6. 7ltr and what is the first thing you see, well i see bigger lines, and a much bigger rail, not to mention a bigger cp3, and a bigger relive valve. i will say this i saw this a while ago and i am in the works of making 2 projects, one with a retrofit 07' fuel system and the other will be a duel rail bigger line setup from our trucks. that i think is where most of our problem is.
 
Diesel Power said:
i agree, lets look at the new 6. 7ltr and what is the first thing you see, well i see bigger lines, and a much bigger rail, not to mention a bigger cp3, and a bigger relive valve. i will say this i saw this a while ago and i am in the works of making 2 projects, one with a retrofit 07' fuel system and the other will be a duel rail bigger line setup from our trucks. that i think is where most of our problem is.

Like I said Wade send me a rail and I will machine it for you. The stock feed hole is so small,I cannot remember the size off hand,but the feed lines are 3 size's larger so their is some room to move here,any type of off the line performance will need the dual line setup. . all rails are design with the limiting valve in place,The stock lift system will max out at 575/610hp so any hp pass this will need a lift system to support it,I have broke 600hp with the mild rail,right after the event (dyno) the mild rail cause volume issue . The reason I

know this is because I cap The rail with same result,I can beg the gage and keep it their until the stock Cp3 fails to keep up (at least for 3 seconds), while towing 20,000 you can beg the gage and keep it their.
 
i still think that you are are going to be missing your target. The real problem is in the inj. body itself. Get this, ... not sure what to make of it, but when increasing duration, if you go pass the sweet number, pressure is still there, but the HP numbers fall off. Not sure if too fuel is the problem, or if the extra fuel is getting there too slow, or the problem may be elsewhere in the motor. Maybe the fuel is at lower pressure at the tip than it is at the rail? I don't no, but i think that these probs have to be figured out first. I thought is do the easy (cheap) things first and see if it helps or hurts performance. After a certian level in horsepower, the top end number gets harder to get, but the mid range power goes up like crazy.
 
Diesel Power said:
to be honest, i have not seen anyone drain down a II modded cp3 yet. my point is that if there not draining the rail with one then why would you need two? plus that single modded is a lot cheaper!!!



I think it is inevitable that asking one pump to do all the work will not cut it for the super-hp engines.



And if you do get one pump to keep the rail pressurized, How taxed out will that pump be? Where as two pumps can just loof off and get the job done (in thoery)



As for price, I agree that until a competive price is available I cant see this being more popular that a modded pump
 
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