jlibert

I don't have a rp gauge right now, but had one installed for a while. I'd see pressures drop to 15-16k under load. Today I got the infamos backfire/miss that comes with a drained rail. I'm pretty happy with the overall performance, but if my rail pressure is running low enough to cause the miss I feel like there is a lot more to be gained with a little more fuel or fuel pressure. Question is this: What is the best option to make the best power with what I have now (no plans for future upgrades).
1. Go with a stage 3 type pump or pump from floor it
2. dual pumps
3. Wait till I can get the smarty with the 4.4 program to see if a little pressure will remedy the problem
4. shut up, quit whining, be happy with what i have (cheapest solution

Feed pressure to cp3 is about 42psi, filters are clean, pressure reading taken right before cp3. Smarty on sw8, tst r49 standard program 12* auto advance. Obviously when I purchased the pump from II I thought i would never run into these problems.

jrussell

Wow...second post today about the rail draining with an II pump!

Is this the "30% more flow than stock" pump they sell?

king d

do you have the relief valve rempved if not i would look there first,but i think you should since u have the dual feed lines,do you have a pressure guage to read the walbros pressure or is that what you set it at,my walbro only lasted a few months then crapped out

jlibert

yes, the pump I purchased was the 30% over stock fuel. The guys at industrial injection were friendly and helpful, absolutely nothing bad to say about them at all. I just wanted something that would keep up with my mods.

Yes, the relief valve is capped via the dual feed line.
Yes, I have a gauge for the pressure to the CP3 mounted under the hood (liquid filled from GDP) reads about 42psi at idle

Luken

Modified cp3s are a thing of the past for highly modded trucks IMHO.

I'm around a truck quite a bit that ran a Stage 2. With the new Smarty program it still drained it down below 16,000 at least. It was ALOT better but still not enough. With the addition of the dual pumps it NEVER drops below 23,000 at full throttle. That smarty version and the twin pumps is an awesome setup IMO.

I'm sold on dual pumps. After seeing that in person and talking to a guy that has flux 4s, scary larry, and twin pumps who also doesn't drop at all.

I think the modded pumps are great for most that just need a little extra but if your wanting to compete hardcore the only way to go is duals.

You could always go with option 4.... But that is boring!

omaharam

I will NOT share who I talked to or the specifics of the problems they had. That individual can speak up if they so choose. But.....

You need a different brand of pump!

I'm not sure how backed up John is a Floor It right now, but I would give him a call and tell him what you have and what is going on. He can hook you up with a pump that will supply the needed fuel.

omaharam

The problem is that if a pump is not modded correctly it is junk. With a dual set up, they are stock pumps, so there is nothing anyone did inside them that could have gotten screwed up.

jwb600

im running into the same issues. I am pretty unhappy at this point. I have no plans to put on the dual pumps. the are the hot setup for sure but tired of putting in the $

jrussell

Floor-It is looking better and better every day. I checked out his website but didn't find any info on the different CP3 stages and prices. Are the prices comparable to II?

The more I read though the more a dual setup sounds like the WTG. I like the idea of stock pumps running at 50% capacity.

Luken

The truck had a Floor It pump on it... It had nothing wrong with it. It performed better than stock. I'm just stating that you can not beat twin pumps with a single. I'm not knocking any modded cp3 company at all. They are enough for most and better than stock... But they aren't close to twin pumps.

abc4yew

You can make 550hp with a stock CP3.3....If you add 33% then you should be able to make 700hp... with an efficient turbo setup and a little water...IF you have a modded pump and aren't making 600hp then you have some serious fuel control problems with your injectors and stack. With a dual Fueler you can make 1100hp on straight fuel with a CP3.4 you can make 1200hp. The secret is to do so within the temperature, pressure, and strength constraints of your engine setup. ks

PourinDiesel

Jesse are you ever happy with anything?

I never had any issues popping or missing with my Floort It stage 2 and I only ran 12psi inlet pressure at the CP3.

I still only run 12psi @ the inlets of my dual setup...
Truck runs good.


Side note: Fass systems work great...mines 3 years old and running great.

Dan Marino

So I ask the question in another thread about ideal pressures. You guys think that anything below 23,000 is junk?

omaharam

Exactly.

All I have is a stage 1 pump form FLoor It, and the only reason I'm not over 600hp is due to a mods that aren't quite matched. The pump has no trouble keeping up with the 547hp that I have put down. I know this pump will put me over 600hp. A stage 2 or 3 should handle what 90% of the trucks on here are putting down for power. You just have to have a "GOOD" pump. My stage 1 from John far exceeds what anyone else is doing with pumps. I have been sworn to secrecy, but from what John has shown me, he has tons and tons of hours invested in R&D in these pumps. Every little idea he has, he tries it and then puts it on the flow bench to compare numbers.
I'm not down talking duals. I'm just saying that many of the people that are draining the rail with an II modded pump should not be.

ramtd02

Personally I was told anything under 21K @ WOT is not good. I have an Industrial Injection pump.....but it is a little more hopped up than anything that they show on the website. I hold 24.5K @ WOT.