Modded CP3 is on - Dyno and review:

[Diesel Power]

out of all the pumps we sold there is only one review-----they must be having to much fun :--) ---100+HP sure is nice!!! if you guys are ready for the pumps pm me or call, we have plenty to go around. :-laf

wade

NGM Diesel Performance

301 884 2175

 

[Diesel Power]

the fass 150 can be modded with out problem, you can send it in for us to mod or you can do it your self. we will have kits avalible ASAP. this is for 40psi at the inlet. thanks :-laf

 

[Diesel Power]

So after a 4 hour drive there and 4. 25 hours back, I now have a stage one modded CP3 by Floor-It diesel.



Boy, where do I start?



First heres a few runs after it was installed:

http://tomeygun.com/misc/smokevid/tst9x9.MPG

http://tomeygun.com/misc/smokevid/TST8x8.MPG



This was quite a learning experience in that John and Scott told me that I need 40psi at the inlet of the Cp3, and preferably a 150gph pump.

ME? I have a 95gph FASS (pump only) - Not good as we would find out later



So we baselined the truck at 520hp, About right with the weather, Colder weather 4 months earlier netted a 524. - I go and have lunch and return to a ready to dyno truck with Modded CP3 on and ready.



I admit, even thought I KNEW I did not have the right fuel pressure, I had high hopes. Well the best we could muster out was 522hp...



AHH, I know what your thinking... 2hp ?!?



But upon closer inspection of the dyno graph you can see that I actaully picked up OVER 100hp from 2200-2500 rpms. So we broke out the fuel pressure gauge to figure this out... Well John and Scott were right, 95pgh just does not cut it.



At Idle I have about 22psi - and it holds 20psi right about till 2000rpms. Then drops to 16ish, then about 2500 - drops to hp-robbing 6psi -- RIGHT WHEN the CP3 needs it the MOST!



the 150gph will be on by april 1st for the STL dyno day. We will shoot for some bigger numbers there.



SOME OTHER NOTES:

1) interesting I got 18mpg there, BUT managed 20. 6 mpg on the way back -- Fluke maybe?

2) boost and EGT are lower on regular cruising speeds. (not alot, but noticable)

3) Spool-up is way better. I can really tell the extra mid-range - I used to feel the rail drain and then recover. Not anymore, Just pulls hard and keep pulling till about 2600 then starts to loose PSI at the cp3 inlet



so there you have it, 150gph pumps are needed, who'da thought?

tommy it does not look like you have the rail cap? if not why, your revief valve is killing power.

 

[Diesel Power]

Should just be a spring swap with a couple of washers. Well, I'm hopeful, so definitely let us know what they say. It looks like an upgrade of some kind is in my future. If the 95gph FASS can’t keep up with a 20lb spring, I just don’t see raising pressure to 40 helping it keep up any better. Maybe last a split second longer before it drops, but you would think it would still drop to the same level and wouldn’t be a "fix" per say.

the only problem with the 95 is that it will not put out the volumethat the cp3 needs, so higher pressure wont make much of a difference

 

[Tomeygun]

tommy it does not look like you have the rail cap? if not why, your revief valve is killing power.

I have not capped the rail beause I have not saw the proof that it is kiling the power. Once I check out the Rail PSI with the DRB, I can better tell whats going on.



See the problem before was this, On th DRB is said:

RAIL PSI DEMANDED:24000

Rail PSI Actual: 14000



So now I will test to see if I can make the computer see that big ol' gap again

I suspect the Rail will now stay at "demanded" PSI much longer, but due to the allready-discussed gph requirement, I think I will see the gap again at 2600ish rpms and up



BTW, When someone mods a railcap for like 32k blowoff, Thats when I'll Change mine

 

[Diesel Power]

cool :-laf

 

[Tomeygun]

We have addressed the lift pump section as well as the high pressure section of these pumps. We have also said from the begining that 40psi at the inlet and 150gph is the minimum required for this pump. If you are not feeding the CP3 with this volume and pressure you will not see the full potential of the pump. Thank You to every one for your interest in these pumps.



Scott

Scott,

Couple of notes/thoughts:



1) Is the FULL FASS recommended? Or is the 150gph HPFP good enough. (any advantage to go with the full FASS?) - If i'm changing, may as well only do it once

2) whats with the mpg improvement? I did the math and using the times recorded on the fuel slips - I averaged 70. 4 mph heading there, But only 65. 6 mph coming back... . I guess that could be 2. 6 mpg increase

Let me know if anyone else notices that and mpg gains...

I have the theory that in my truck due to the large charger that it took a lot of HP to get it moving from the low end, but now I have stronger lower-to-mid-range and better atomization (more energy from each unit of fuel) - thus using less fuel for a given accelation rate



I'll for darn sure be testing this theory. My daily drive to work nets me 18. 1-18. 5 like clock work... I'll post my findings

 

[Tomeygun]

out of all the pumps we sold there is only one review-----they must be having to much fun :--) ---100+HP sure is nice!!! if you guys are ready for the pumps pm me or call, we have plenty to go around. :-laf

wade

NGM Diesel Performance

301 884 2175

WADE,



Noticed your sig says your CP3 mod is on...

Do you have plans to get it on a dyno? and what changes in your truck have you noticed?

 

[Diesel Power]

Scott,

Couple of notes/thoughts:



1) Is the FULL FASS recommended? Or is the 150gph HPFP good enough. (any advantage to go with the full FASS?) - If i'm changing, may as well only do it once

2) whats with the mpg improvement? I did the math and using the times recorded on the fuel slips - I averaged 70. 4 mph heading there, But only 65. 6 mph coming back... . I guess that could be 2. 6 mpg increase

Let me know if anyone else notices that and mpg gains...

I have the theory that in my truck due to the large charger that it took a lot of HP to get it moving from the low end, but now I have stronger lower-to-mid-range and better atomization (more energy from each unit of fuel) - thus using less fuel for a given accelation rate



I'll for darn sure be testing this theory. My daily drive to work nets me 18. 1-18. 5 like clock work... I'll post my findings

tommy the full 150 is recomended, the reason is to give you full filtration ablity the other fass pumps w/out the filers are bound to fail as dirt and debris are entering unfiltered. also the rest of your fuel system will live a long life as well and your wallet will thank you. nice #'s i will post mine soon too. :-laf :--)

 

[Mad Bomber]

Definitely did not want to go back to a noisy 150gph FASS.

Your 150gph was noisy? Mine only had alot of noise before I got it running right.

 

[AK RAM]

Yeah, mine was noisy as all get-out. It drove me crazy and I ended up swapping the pump.



Wade…. . when you say you have FASS "kits", what does it entail? For instance, I already swapped just the 150gph pump on my full FASS (with filters) for the 95. I would only be interested in another 150gph pump (motor, seals, etc. ), pump only mind you, not the whole FASS unit. Is that what your kit entails?…just the pump for our existing housing and a spring kit?

 

[Diesel Power]

Yeah, mine was noisy as all get-out. It drove me crazy and I ended up swapping the pump.



Wade…. . when you say you have FASS "kits", what does it entail? For instance, I already swapped just the 150gph pump on my full FASS (with filters) for the 95. I would only be interested in another 150gph pump (motor, seals, etc. ), pump only mind you, not the whole FASS unit. Is that what your kit entails?…just the pump for our existing housing and a spring kit?

we will have avalible the whole pump 150 w/dual filters thats modded or you can buy the 40 psi kit that will enclude all you need for the 40 psi and a easy install, each fass pump is different, the others will recuire different items for 40psi, the 150 w/dual filters@40 psi is what we reccomend. thanks

 

[Tomeygun]

we will have avalible the whole pump 150 w/dual filters thats modded or you can buy the 40 psi kit that will enclude all you need for the 40 psi and a easy install, each fass pump is different, the others will recuire different items for 40psi, the 150 w/dual filters@40 psi is what we reccomend. thanks

I didnt waste anytime, Let a message for Brad @ DPP to get a 150 pump ready, As for if it is a Full FASS or a pump only, I think I will go with the pump only so we can see if that works, etc

 

[Diesel Power]

hey tom the pump will take in dirt and debris unfiltered straight from the tank and wont take long for it to fail :{ , we allready been there and done that----if your gona do it man do it right!!!! get the duel filter 150 @40psi this goes for everyone that plans on installing a modded cp3!!! :-laf

 

[Hawkeye 04]

hey tom the pump will take in dirt and debris unfiltered straight from the tank and wont take long for it to fail :{ , we allready been there and done that----if your gona do it man do it right!!!! get the duel filter 150 @40psi this goes for everyone that plans on installing a modded cp3!!! :-laf

My fass (pump only) came with an inline filter to catch any dirt & debris that might come from the tank. I'm sure there are microns of dirt that pass through that a filter system would catch, but everything has been great for over a year.....

 

[Diesel Power]

its just a strong word of advice and reccomendation

 

[JPereira]

Tommy,



Just read an older post you refering to a RASP. Does the new modified CP3s need for fuel ever make you think of using the RASP to keep the CP3 with a steady flow of fuel?



Jeff



Quote:

Originally Posted by Coolslice

I'm looking down the road at some future mods, and like everyone else I need to do something about the stock fuel system. . To me, it looks like the RASP is the best route to go but I almost NEVER see or hear of anyone using it here. . I'm just curious as to why nearly everyone chooses the FASS over the RASP considering... . Any thoughts?







I think some 2ne gens are running it. But is not very common on 3rd gens I agree.



For me I chose the easiest one, and that was thr HPFP from Fass - The RASP was way to involved for my install ability/wants

__________________

Tomeygun Diesel Performance & NEW Dodge Truck Sales - St. Louis, MO

(314)486-6378



2003 3500 QUAD CAB,SO/5-SPD, TST/EZ, SLEDPULLER 66, SBC MU13-1. 25 CON OFE, 5" STACKS , CoolBlueHose/AFE, DPP Fuel pump, CP3 modified by FLOOR-IT Diesel! -- STL, MO DYNO Day - APRIL 1st,2nd



Latest DYNO Runs (W/ Video) <-- (526hp!)

 

[Tomeygun]

Tommy,



Just read an older post you refering to a RASP. Does the new modified CP3s need for fuel ever make you think of using the RASP to keep the CP3 with a steady flow of fuel?



Jeff

The thought had crossed my mind - The concept is cool, as the motor turns faster, the pump makes more fuel flow...



BUT at close to $1000 (with plumbing), its not quite as economical as the $200 or so I'll pay after I sell my pump and buy a 150 HPFP.



I might call DTT and see what the GPH are on the RASP - I could not find it on the website - http://www.koengineering.com/

 

[Gypsyman]

Has anyone ever seen a flow chart that shows what a FASS really puts out at 40 or even 15 psi?

 

[elandon1201]

I know John has been testing with these pumps and has maintained 40 psi to the CP3 with them.