30% nozzle on stock HPFP

Powerstroked162 · May 27, 2013

I've been noticing the claims coming from a few that it can be done while maintaining RP and power increase is being noticed, just haven't seen any data to back it up. I'd like to see whats out there to put this to rest. Any data you guys have, i.e., logs, dyno sheets, track slips, of before and after testing, please feel free to post it up. I wanna leave this open to discussion but I'm not interested in SOTP data. Thanks

.

pog · May 27, 2013

is anyone actually running 30% with stock hpfp?

Powerstroked162 · May 27, 2013

pog said:
is anyone actually running 30% with stock hpfp?

From what I gather, several are.

.

powerstrokin15 · May 27, 2013

i am.. and maintaining. ill have results soon.. but i really dont wanna make this a huge fight, i was just trying it to see if i could.

Powerstroked162 · May 27, 2013

powerstrokin15 said:
i am.. and maintaining. ill have results soon.. but i really dont wanna make this a huge fight, i was just trying it to see if i could.

Don't worry, I'm not trying to "fight". I just want some data that proves one way or the other, that's all. I've even considered having Craig ship me a set of nozzles and doing the testing at Haller's.

powerstrokin15 · May 27, 2013

understandable, im the same way. i wanna see if they will, so i threw em in. ill be on a dyno soon.

Morgan@Midwest Diesel & Auto · May 27, 2013

Powerstroked162 said:
Don't worry, I'm not trying to "fight". I just want some data that proves one way or the other, that's all. I've even considered having Craig ship me a set of nozzles and doing the testing at Haller's.

I have 30's in stock.........

04stroker · May 27, 2013

Like said Eric's (powerstrokin15) truck maintains 25,000-26,000 psi rail pressure with 30% nozzels at 2.1ms pulse width. We don't have before Dyno numbers to give before and after Dyno though and we did several other things at the same time.

UNLIMITED_DIESEL · May 27, 2013

I would like to see this also. I have a set of 30% nozzles sitting here if you need them Steve. I'd be more than happy to send them to you if you're willing to do the testing.

strokinKR · May 27, 2013

Hell I can't even maintain RP with stock nozzles

WoodBoy · May 27, 2013

Even if Steve did the testing it wouldnt prove anything. Testing the setup on 10 different trucks might though

Morgan@Midwest Diesel & Auto · May 27, 2013

WoodBoy said:
Even if Steve did the testing it wouldnt prove anything. Testing the setup on 10 different trucks might though

It would prove that if it works that all the bs about "can't be done" isn't true. It would prove that if he uses a new stock hpfp and 30% nozzles holds a 2.1 tune and makes more torque or pulls harder down low then all these people can quit telling everyone they are stupid for doing it. If it makes the same power with less timing and lower EGT's then that would be nice too.

Idk if it works or not. But I think a truck tuned for 30's and a stock pump will not loose power.

If elite says their 72 made 30hp over the 71, do you then tell them they need to duplicate it on 10 trucks? Seriously?

I'm tired of all the guys saying one way or the other with no real experience. I've seen 30's hold with the right tune. Big deal. If your truck won't maintain with stock nozzles then your hpfp is ****.

I am ready for this to be proved or disproved.

bft blue oval boys · May 27, 2013

Sledpull said:
It would prove that if it works that all the bs about "can't be done" isn't true. It would prove that if he uses a new stock hpfp and 30% nozzles holds a 2.1 tune and makes more torque or pulls harder down low then all these people can quit telling everyone they are stupid for doing it. If it makes the same power with less timing and lower EGT's then that would be nice too.

Idk if it works or not. But I think a truck tuned for 30's and a stock pump will not loose power.

If elite says their 72 made 30hp over the 71, do you then tell them they need to duplicate it on 10 trucks? Seriously?

I'm tired of all the guys saying one way or the other with no real experience. I've seen 30's hold with the right tune. Big deal. If your truck won't maintain with stock nozzles then your hpfp is ****.

I am ready for this to be proved or disproved.

*hi five! Lol

In for this

Sent from a Cummins plant, driving a TDI, wishing it was a Powerstroke

MINK · May 27, 2013

Mine holds 23k rail with bone stock fuel system and tips. I'd love to be able to throw 30s in my truck and make more power but I'm very skeptical. Has anyone proven if a low pressure fuel system and fuel bowl delete make and difference ??

Jgon08 · May 27, 2013

MINK said:
Mine holds 23k rail with bone stock fuel system and tips. I'd love to be able to throw 30s in my truck and make more power but I'm very skeptical. Has anyone proven if a low pressure fuel system and fuel bowl delete make and difference ??

I was wondering the samething. I would say it will help some but that just a guess.

WoodBoy · May 27, 2013

Sledpull said:
It would prove that if it works that all the bs about "can't be done" isn't true. It would prove that if he uses a new stock hpfp and 30% nozzles holds a 2.1 tune and makes more torque or pulls harder down low then all these people can quit telling everyone they are stupid for doing it. If it makes the same power with less timing and lower EGT's then that would be nice too.

Idk if it works or not. But I think a truck tuned for 30's and a stock pump will not loose power.

If elite says their 72 made 30hp over the 71, do you then tell them they need to duplicate it on 10 trucks? Seriously?

I'm tired of all the guys saying one way or the other with no real experience. I've seen 30's hold with the right tune. Big deal. If your truck won't maintain with stock nozzles then your hpfp is ****.

I am ready for this to be proved or disproved.

What I am saying is that it seems that each truck is different and that just because my neighbors will hold RP doesnt mean mine will. If Steve tested them and didnt hold that doesnt prove that they wont hold if powerstrokin15 is holding RP fine

Wayne · May 27, 2013

My hpfp would only maintain 23k on a stock system, but my Lpfp would drop to 2 psi supply. I added an airdog 2 to see what happened. Rail pressure did not change. Power did not change either, but supply wouldn't get below 7 psi st full tilt. I don't know how that test would do on anything else, but those are my results. So is 2.1 ms the most anyone has been able to go on a stock hpfp, and 30% over nozzles? That is impressive, better than I expected., even if that's an anomaly. Most healthy hpfp's I've seen will max out at 2.1 on 15% nozzles. Our dyno tests showed power loss though on jd's truck going from stock nozzles, and maintaining 2.29 to having to pull back PW on 15% nozzles far enough to maintain. All my data is validated with before and after dyno recorded results, with no other changes in the mix. This is the reason I recommend people to not do larger nozzles unless a bigger hpfp, or twins are in the mix.

Tree Trimmer · May 27, 2013

didn't you gain a fair amount down low, but lost up top??

can nozzles be changed cab on?? what's involved in getting the injectors out??

i don't know what gearhead race tune runs for pw, but i know i maintain the 26-27 he's calling for, allowing converting from the livewire's kpa to psi is acceptable.

i'd be willing to put a set on my truck as well, and hit a dyno before and after, only change being nozzles, and any tuning modifications needed to make them "right."

having seen what they did on wayne's, after he produced his graph, i'm interested in achieving his result. all my driving/towing is done below 2700ish, (ish), and iirc thats where his low end gains seemed to fall off up top compared to his stock graph.

i'll call a dyno not far from me and see what kind it is, or maybe morgan can hook up with me and maybe we'll use my truck for this test as well. only other shop, reasonably close to me, that i would trust my truck to, for results, is empire.

Beans71086 · May 27, 2013

MINK said:
Mine holds 23k rail with bone stock fuel system and tips. I'd love to be able to throw 30s in my truck and make more power but I'm very skeptical. Has anyone proven if a low pressure fuel system and fuel bowl delete make and difference ??

My stock fuel system wouldn't hold any more than 23.5 on spartans 310 tune before my build. Added 15% nozzles and lpfp with fuel bowl delete. Now it's holds 25k all day on Eric's x race, my hpfp only has 47k miles on it though. Just my experience.