Cummins NTA855 N14 PT pump pump size to fuel flow psi

[cfherrman]

Man that thing is teeny compaired to what I was thinking lol, must be the high pressure that got me off.

 

[Roadoil]

Man that thing is teeny compaired to what I was thinking lol, must be the high pressure that got me off.

In comparison to a 2000 hp fracking pump they are small lol but these pumps weigh about 4000 lbs each I wouldn't exactly call them tiny.


Even the TF450 at 26gpm 20k is a larger size pump in the high pressure water blast industry most are 200hp to 300 hp max.

The 500hp pump 43gpm 20k is relatively rare it's a big pump the max they go is 1000hp in this industry.

Using hydro demolition and 43 gpm 550hp of water coming out of a single nozzle is a lot of power how it quickly destroys bad concrete.

 

[cfherrman]

There's a lot of 500-600 HP triplexs around here for acid and cement work, not sure on max pressure around 5,000 - 10,000 psi but 10 bbl/min. They are around twice the size with 3 1/2-5" plungers

 

[Roadoil]

They loading up the pump here gives you idea of size.

 

[Roadoil]

There's a lot of 500-600 HP triplexs around here for acid and cement work, not sure on max pressure around 5,000 - 10,000 psi but 10 bbl/min. They are around twice the size with 3 1/2-5" plungers

Ok yeah probably high volume low pressure type pump

Yeah u not gonna get 10,000 psi at 500 gallons a minute with 500 hp maybe 80 gpm at 10k 500 hp.

Those prob 1000 to 2000 psi.

 

[cfherrman]

The 3 1/2 plungers can do 8000 psi for 600 HP. Ofm 600 is a common unit around here

Your is probably 80% physical size of what I was thinking, that last pic helps a lot. Those small plungers definitely keeps the size down

 

[Roadoil]

The 3 1/2 plungers can do 8000 psi for 600 HP. Ofm 600 is a common unit around here

Your is probably 80% physical size of what I was thinking, that last pic helps a lot. Those small plungers definitely keeps the size down

Yeah some pumps are bigger the NLB 20425 I have also with N14 475hp is a bit bigger it's a Union power end but only does 34 gpm 20k.


This aqua dyne was used on 2 jobs back early 2000s in the gulf to cut the support pylons off a damaged oil rig for demolition EPA jobs has 50hrs on it they bought it new. Can imagine what they made on that job to use this pump once.

They dissolved the company after that and a scrapper ended up with the pump. He just wanted the Detroit 8V92 off it 2 stroke V8 off it trying to sell it for $10.5k.

Who can use a smoky loud 2 stroke Detroit in the States lol ?

He would have gotten much more keeping everything together one piece

 

[Roadoil]

The 3 1/2 plungers can do 8000 psi for 600 HP. Ofm 600 is a common unit around here

Your is probably 80% physical size of what I was thinking, that last pic helps a lot. Those small plungers definitely keeps the size down

Here's the old messy 525hp Detroit 2 stroke. He said guys still run those 2 strokes in Louisiana.

 

[cfherrman]

I just took off a 671 off my rig in June. There's lots of 6 and 8 71-92s around here. They are junk but still make money. Good luck to him trying to sell that engine. That engine can't do that power without that radiator and can't do it in a truck mount either so it would have to go back to a Genny or a pump or need to resize injectors or turbo.

Oil Field has some weird decisions man.

 

[Shimmy1]

Have you verified pulley size on that pump? That Detroit was prob running at 2100-2300 when turning that pump. You'd better measure the pulley on your Cummins and figure out if this is going to work. Maybe you have?

 

[Shimmy1]

I'm with these other guys, however. Chances are respectable that there are iron parts capable of 435, ***maybe*** 460 in your current 335, but I would never believe that engine will withstand 500+ hp in a stationary application long-term. No way. You will end up cooking it, even with CAC, if you even have that. FWIW, a bigger turbo is not going to save you. It might prolong the inevitable, but that's it. That engine will not have the timing or compression to handle that fuel.

 

[Roadoil]

Have you verified pulley size on that pump? That Detroit was prob running at 2100-2300 when turning that pump. You'd better measure the pulley on your Cummins and figure out if this is going to work. Maybe you have?

Ok no I haven't I'll need to check that good point.

 

[DMiller]

Adding Gear displacement in a Cummins PT pump will gain you nothing but wasted fuel(Coal Rolling), a HIGH heat producer and eventually washed out cylinders from over fueling at off time and under bad performance delivery. If all you want is noise and smoke will get it. Want HP dependable and consistent have to go the WHOLE Nine Yards as noted, Injector Flow rates, PT Pump bench set, Cam timing and CORRECT Pistons for raise of Power Curve. Otherwise you get a Black smoking Grenade.

Playing I know what needs done with the Old Hands that have dealt with these engines for over four decades on here will get you ignored.

 

[Truck Shop]

The added stress to the camshaft injector lobe increases the same rate as percentage of over fuel.
The rail pressure with a 1 or 1 1/4 pump gear will climb drastically. The CC rate of injector orifice
has to be increased to drop the rail pressure-it's key to getting one to live without eating the cam.

 

[Roadoil]

I'm with these other guys, however. Chances are respectable that there are iron parts capable of 435, ***maybe*** 460 in your current 335, but I would never believe that engine will withstand 500+ hp in a stationary application long-term. No way. You will end up cooking it, even with CAC, if you even have that. FWIW, a bigger turbo is not going to save you. It might prolong the inevitable, but that's it. That engine will not have the timing or compression to handle that fuel.

According to CPL 1204 it's 14:5 to 1 compression and a I code cam

 

[Roadoil]

and CORRECT Pistons for raise of Power Curve. Otherwise you get a Black smoking Grenade.

Playing I know what needs done with the Old Hands that have dealt withthese engines for over four decades on here will get you ignored.[/QUOTE]


I am going by what a highly recommended PT pump builder from this forum told me.

He said a changing the pump pressure will get me there.

Adding Gear displacement in a Cummins PT pump will gain you nothing but wasted fuel(Coal Rolling), a HIGH heat producer and eventually washed out cylinders from over fueling at off time and under bad performance delivery. If all you want is noise and smoke will get it. Want HP dependable and consistent have to go the WHOLE Nine Yards as noted, Injector Flow rates, PT Pump bench set, Cam timing and CORRECT Pistons for raise of Power Curve. Otherwise you get a Black smoking Grenade.

Playing I know what needs done with the Old Hands that have dealt with these engines for over four decades on here will get you ignored.

I am going by the advice of a recommended PT pump builder here not saying I know better.

I know how changing fuel pressure made a huge difference with my 5.9 Cummins in hp so to simply state it's gonna just smoke and wash out the cylinders by increasing fuel pressure doesn't add up.

it's all over the internet YouTube changing the fuel button, fuel pressure adding another fuel line to front head makes a big power increase with the Big Cam and N14s. So fuel pressure mods make a difference whether this motor can handle that big time of a increase is a different story to 500hp.

There may be bad side effects as noted by others here not changing injectors and cam timing etc.

It's not as if it's a permanent change adding a bigger pump. It will be obvious if it doesn't produce a good result right away high EGTs, smoking, missing etc.


This isn't my first rodeo working on a Diesel engine. I am asking advice no reason to get snarky.

 

[DMiller]

As noted prior, someone is blowing smoke out their hat for some reason. Don't trust us, we do not know squat or ever worked on Frankenmotors before.

 

[Roadoil]

As noted prior, someone is blowing smoke out their hat for some reason. Don't trust us, we do not know squat or ever worked on Frankenmotors before.

Lol I like to hear all opinions and if I was told wrong let's hear it.

I really don't want to waste my time if it's futile better off searching for a 525 HP 855 or N14 they are out there for decent deals sometimes.

 

[Roadoil]

As noted prior, someone is blowing smoke out their hat for some reason. Don't trust us, we do not know squat or ever worked on Frankenmotors before.

Very possibly true because all they would do is change my pump gear clean the pump and charge me $600, it's not as if they are also working on the motor so the end result is a 500HP reliable motor it's just the PT pump.

maybe telling me what I wanted to hear not reality.

 

[Shimmy1]

I know how changing fuel pressure made a huge difference with my 5.9 Cummins in hp so to simply state it's gonna just smoke and wash out the cylinders by increasing fuel pressure doesn't add up.

To compare raising fuel pressure on a B-series to raising pressure in a PT system is ludicrous, and ridiculous. T.S. gave you a perfectly good explanation on what will happen.