Modded CP3 is on - Dyno and review:

[steved]

…. and at the same time discouraging. Definitely did not want to go back to a noisy 150gph FASS.

Could also be that the FASS95 uses 3/8" line and the FASS150 uses 1/2" line... could be a volume thing based on line sizing and not as much as the pump.



Do they mod the inlet to take a larger size? I didn't think you could up the line size on the CP3 inlet without modifying the fitting size as well... I might have to go look!



steved

 

[Stefan Kondolay]

I was talking with John @ floor-it last week and we have talked about customizing a RASP kit for these Modded CP3 trucks as we figured that the stage 3-5 modded pumps may take up to 80psi . So mechanicals for guys is close on the horizon.



For guys that have been asking I can get you Floor-it CP3's as well. Oo.

 

[SLangegger]

Speaking of other stages, Let me say that I think the p-pump has its days numbered... .

tomey,



i think we still need to overcome that little rpm problem. Then maybe, just maybe you can start that countdown.

 

[driverno8]

I too have have the AirDog and am now concerned it's not enough to handle the 40psi. Is there an upgrade kit for the AirDog as well?

 

[Diesel Power]

I was talking with John @ floor-it last week and we have talked about customizing a RASP kit for these Modded CP3 trucks as we figured that the stage 3-5 modded pumps may take up to 80psi . So mechanicals for guys is close on the horizon.



For guys that have been asking I can get you Floor-it CP3's as well. Oo.

the only way you can get it is at retail from what i understand!! "there will be only 4 dealerships selling this product" straight from john @ floor it, may be he has changed his mind?

 

[Stefan Kondolay]

I can definitely get them, I'm not gonna claim that it's mine, or you got to get them from me, but I get them from John just like you and everyone else. Wade remember guys like us have been seeing John's progress over the last 3 years on this project, it would be a pretty crappy deal if all of a sudden Floor-it said the heck with all you guys, I'm just gonna deal with the guys who have just jumped on the band wagon now. John's not that kind of guy.

 

[Diesel Power]

so basically you are buying retail and selling retail!! to serve your customers specifically? is that right?

 

[Stefan Kondolay]

Really I don't see how it's any of your business, but no that's not right.

 

[Diesel Power]

 

[GWoody]

I too have have the AirDog and am now concerned it's not enough to handle the 40psi. Is there an upgrade kit for the AirDog as well?

I'm thinking a heavier spring, maybe a little stretch to the spring or a washer or two, to shim the spring should increase pressure.

 

[michaelRitz]

How many stages of pumps are going to be built 1, 2, 3?, 4?, 5? ... . ??? What for numbers will the stages all support? Will there be a pump reliable and big enough to support these higher CP3 stages? I'm just curious for now. I have to get a clutch(double disk), twins, head studs, FASS or whatever necessary to suppot the power goal I set, downloader to go with hot juice then injectors and cp3 will be the last. Its exciting to know the 3rd gens are going to some ripping trucks with these pumps and the right mods. Can you say 4 digits of rwhp?

 

[Tomeygun]

How many stages of pumps are going to be built 1, 2, 3?, 4?, 5? ... . ??? What for numbers will the stages all support? Will there be a pump reliable and big enough to support these higher CP3 stages? I'm just curious for now. I have to get a clutch(double disk), twins, head studs, FASS or whatever necessary to suppot the power goal I set, downloader to go with hot juice then injectors and cp3 will be the last. Its exciting to know the 3rd gens are going to some ripping trucks with these pumps and the right mods. Can you say 4 digits of rwhp?

I know Brad of DPP/FASS is coming out with a 200 and a 300gph pump soon...



No kidding. So I think we will have all the fuel pump we need when more stages are developed

 

[Diesel Power]

for the record i only know of 1-3 stages that will be avalible before raceing starts, as for the rest its up in the air

 

[BIG BOB]

I'm feeding mine with the Walbro 391 right now at 640 hp. Haven't even needed to step up to the 392 yet and the 392 flows about 30% more. I guess time will tell.

What happened to the RASP?

 

[CATCRACKER]

with the walbro you dont need the rasp!we have already been over this a hundred times on the DTR but for the TDR here goes... .



it all started with a guy (superduty)on the DTR saying that he had a pusher pump on his ford that supplied like 60psi for over 200K without a problem. he took an 05 isbe and put it in his 99 ford. when he setup the engine what pusher pump do you think he used? walbro 392 the same one that had supplied the powerstroke for so long. he is running stock power but supplied the data to back up that the walbor 392 is more than capable of pushing and flowing the correct amount of fuel up to 800hp he has also plumbed in a 2 micron cat filter aft the oem filter .



this system makes the over priced fass irrelavant in my opinion. . you ask why?



1. walbro seems to last longer than fass/holley blue etc

2. much cheaper!!! ($100)

3. much quieter than the 95/150 fass

4. you can add the 2 micron cat filter aft oem filter that gives you superior filtration



somone is putting a kit together on this thing so for those watching you should have s/m that will make the fass and rasp look like outdated choices :-laf



I think the guy who is putting the pump kit together has already responded to this thread hopefully he will make the 2mic cat filter and option



by the way SUPERDUTY did not want to put the kit together even though we all said we would buy from him he just was not interested?? but he sure has spent his time proving that this is the way to go!

 

[steved]

I'm thinking a heavier spring, maybe a little stretch to the spring or a washer or two, to shim the spring should increase pressure.

This would increase pressure, but the pump determines volume. And I think you will find they are running out of volume.



steved

 

[Gypsyman]

What happened to the RASP?

Nothing happened to the RASP. It's a fantastic product that never gave me even one second of trouble. I couldn't say a bad word about it even if I wanted to and I wouldn't hesitate to recommend it to anyone. The Kondolay's have done a fantastic job with the RASP and I would guess that with a simple drive gearing change it will support a ton a flow.



This whole Walbro kit started with me being in between jobs and helping a few members out by building trigger harnesses and a few other custom items. Thanks to the members I now have 3 pages (and growing) of new ideas for products and a website being built. Should be a fun summer and I get to work at doing something I love.



Now, back to our regularly scheduled CP-3 thread...



Richard

 

[Hohn]

wow, better grab a couple caffiene pills to read all that!

It does trouble me that Superduty says 60-70 gph to support 600hp. . Why am I not supporting 600? Why did my 95gph pump dump to 6psi when I needed it?

Guess I'll ask brad tomorrow...

SD's statement is based on calculation, not necessarily experience.

Think of it this way. If your truck has a BSFC of around . 45 lb/hp-hr then you need to convert it to GPH based on hp.

Since diesel weighs ~7lb/gallon, we can say that we'll need ~. 064 gallons/hp/hr.

Or, another way, we'll need 0. 001066 gallons per hp per minute. Round it off to . 001 gallons/hp/min for convenience.

Thus, for an hour, I'll need . 06 gallon/hp. If I want to support 600hp, I'll need (600*. 06)= 36 GPH. That's it!

But this is 36gph being BURNED.

How much more do you need to support the cooling and circulation functions??

Even if we DOUBLE that number, you're still only to 72GPH at 600hp, and this is with only 50% of the fuel volume being burned.



I'm with SuperDuty-- I can't see how you need anywhere near 150gph unless you need to constantly recirculate fuel and only want to burn about 20% of what you are pumping.

jh

 

[Gypsyman]

Well put Hohn. That's exactly what we've been discussing off line. I'm running a pump that I can pull down to 14 psi at 640 hp. At 14 psi my pump is flowing about 53 gph. More food for thought.



Richard

 

[KBennett]

Hohn, I liked your calculations, made more sense to me.



Could it be that some pumps flow 150gph at a lower pressure like 5 psi?

Maybe at 40 psi they are only capable of flowing 50gph