progress on injector nozzles

To a mechanic that's a "it must be to factory spec" kind of guy, all of what I do is taboo. I'm sure he would flip out about these nozzles.
Can't say that there is no way it will work with the Ppump plungers...There's always a way.
Swapping to a Ppump is still Cummins spec, basically motor home spec

74M35A2 said:

I would have no problem stabbing a P pump in mine if the benefits were there. But, if the stock MW can take it as far as 400hp, that is probably enough. Next step would be 8V92TA, 14L 515hp series 60, or 500hp Cummins isx.

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A Ppump can certainly get it well over 400hp, even 600hp isnt too hard. The thing the 8.3 has going for it is the rpm range. The 8V92 is more of a novelty engine these days. Sure, an ISX will make 500hp more efficiently, it cant spin much past 2300. These can go to 4500....not that you should.
Sending much over 300hp to the Allison will shorten its life. You can help it out by shifting at a higher rpm, and hike up the timing so all the torque isnt at such a low rpm. It is a chain reaction effect when modding a truck. That's exactly why Grendel's Cummins mechanic guy says what he says. You start finding weak links when overpowering the drive train. If the pump is set to stock still, adding these injectors will add more power for sure while not being horribly smokey. Max out the pump nuts, and it will turn in to a torque monster. Ujoints, axle shafts, and cooling(#1 by far) will be the new concern.

10-4 to all. Trying to keep the 8.3 for its RPM range. Any other engine would require a trans change for durability and to take advantage of the lower RPM range of those engines. The sound of a 2 stroke DD says "Satan is coming", just like on Maxium Overdrive. Ha ha ha!

74M35A2 said:

10-4 to all. Trying to keep the 8.3 for its RPM range. Any other engine would require a trans change for durability and to take advantage of the lower RPM range of those engines. The sound of a 2 stroke DD says "Satan is coming", just like on Maxium Overdrive. Ha ha ha!

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If only you had a 13 speed and a M916 transfer case...

grendel said:

If only you had a 13 speed and a M916 transfer case...

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Just rub it in why don't you?

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Csm Davis said:

Just rub it in why don't you?

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I am sending him a 13 speed RR trans

May be picking up a donor 923 roller and an 8v92ta to go with it. Wolf in sheep clothing. If transfer case won't live, then we'll just dump 2 lockers in the rear and extend the prop shaft.

grendel said:

I am sending him a 13 speed RR trans

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Will be awesome. After 5th gear, I'll be completely lost, and like hmmmmm, what does this lever do? At the same time, going like 25mph on the freeway and watching some old dude on my phone YouTube row through 13 speeds on a non-synchro tranny with a square hanging out of his mouth, never lifting his left foot, thinking "How in the he** does he do that?".

Received my hi flow replacement 8.3L injectors from NEVRENUFHP with new nozzles in them. Here is a preview:

74M35A2 said:

I would have no problem stabbing a P pump in mine if the benefits were there. But, if the stock MW can take it as far as 400hp, that is probably enough. Next step would be 8V92TA, 14L 515hp series 60, or 500hp Cummins isx.

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opcorn:

I ordered my Blue Bird bus charge air cooler... will get the Bobber in next week to get the nozzles out and over to you.

He needs the entire injector(s) to be able to dial in the (increased) pop-off pressure across all of them. Not just the nozzles. Your injectors will be seized in their seats. Start soaking them with penetrant as soon as you get off the plane. You may need a puller that threads onto the fuel nut thread portion of the injector.

74M35A2 said:

He needs the entire injector(s) to be able to dial in the (increased) pop-off pressure across all of them. Not just the nozzles. Your injectors will be seized in their seats. Start soaking them with penetrant as soon as you get off the plane. You may need a puller that threads onto the fuel nut thread portion of the injector.

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nozzle = euphemism for injector, to a guy that doesn't deal with them all that often.

So, what would these do with a 12mm P-Pump, less restrictive intake with charge air cooler and maybe an HX50?

Oh and timing around 16-17 degrees?

grendel said:

So, what would these do with a 12mm P-Pump, less restrictive intake with charge air cooler and maybe an HX50?

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Just an approximation, 600hp. You would have to use the HX50 as the small turbo in a compound setup, and an HT4B sized bottom turbo.

That would probably be pretty shakey on this block/piston/crank combo.

It would shred everything in the drive train.

Drivetrain is easy. I have an Allison HD4760 and an OshKosh 55000 transfer case I could throw at this.