C-15 MBN Rebuild Questions-Marine Cam, Injectors, Turbo

not an expert on the matter but that cam is good for 100 hp more than stock #58 are another 150 hp, plus the 600 hp file, I'm pretty sure the stage 1 is not going to hold up, your stock fuel system is good enough for all that hp, that I'm sure of.

my advice is, pay attention to details, I just rebuilt my 1LW and I have never done a diesel, but when I was in doubt I made phone calls and check with some of the guys here, already put 30k miles and all is good thus far, I bought my parts from IPD, except the head I got from Cat, if there's a next time the entire kit will be from IPD.

 

yes you can run that turbo as long as you don't push the acc pedal too hard, but as soon as you do bang.

 

A friend of mine had a 5EK with 600 hp tune and 59 injectors, no cam, to make a long story short he's been thru 4 stage ones.
Now he has exactly what you have MBN, 600 file, marine 1000 plus cam and 59 injectors running a stage 2, which it still small for all that but has held up so far, we are in So Florida where it is flat and our gross weight is 70k max, he is around low 60,000 lbs most times so all that helps, good luck with your set up.

 

You would build better power with any good 15L file. The 16L files usually drop power on a 15L. My BXS put more to the wheel with the 15L file than a 7CZ file. Like 35 rwhp more.

 

Try the ‘diesel garage’ forum for more info.

 

I know it is simple to put back to MBN for cores, but MBN runs 17:1 compression vs 16:1 of the 6nz/7cz. I think you would be less likely to have head gasket issues with 6NZ cylinder packs and tell your cat guys to make sure you get a new head in re-man box. Seems like one in four is new in reman crate. 0R-0958/ 10R2780 injectors are a crap shoot if you get six decent ones! New number is 211-3024. I would suggest new or a set of flowed 57's aftermarket. They can flow them same as 58's and you will have a much smoother engine. Just my opinions...

 

With regards to turbo, I know of a guy running modified 7CZ file in 6NZ with stock turbo with approx. 500,000 miles and know issues... All about how you use that power and how heavy your foot is. With the 800 hp cam, it will probably want a little higher rpm for best power. I would say your are in between stage one and two. They are close to same turbo, different turbine A/R, and one wastegated, other not. Might be able to get different turbine housing for stage two to make it a stage one if you feel it is sluggish to light off. Check with your turbo supplier.