Engine differences C&C

DiehardFordguy · Oct 5, 2015

Ok some you guys work on these trucks everyday. What are the differences between 11-15 f450/f550 cab&chassis engines and the 11-14 pickup engines? I've read the turbo is different, at least the tuning is different, maybe pcm? What else? How hard to make one on par with a pickup horsepower?

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Swsignal5 · Oct 12, 2015

DiehardFordguy said:
Ok some you guys work on these trucks everyday. What are the differences between 11-15 f450/f550 cab&chassis engines and the 11-14 pickup engines? I've read the turbo is different, at least the tuning is different, maybe pcm? What else? How hard to make one on par with a pickup horsepower?

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The egr is a heavy duty one. 300 hp. Different turbo and lower intake manifold. 81mph speed limiter lol.

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DiehardFordguy · Oct 12, 2015

O ya.. So rods, pistons, hpfp, most everything else the same? Pcm the same just different tune?

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Swsignal5 · Oct 12, 2015

DiehardFordguy said:
O ya.. So rods, pistons, hpfp, most everything else the same? Pcm the same just different tune?

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Idk if the pcm is actually different or just down tuned.

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drunk on diesel · Oct 12, 2015

PCM is different, but yes, short block, heads, injectors, injection pump, etc. are same same

it's essentially the "tuning", but the PCM's ARE different

if you get somebody who knows what they're doing, you can run a pickup PCM, they just have to be able to write your VIN to it. If you end up going that route, LMK, I can program the PCM for you.

used 6.7 PCM's are dirt cheap because they rarely fail. Just bought a '14 PCM for $200 to retrofit to a 15 so we can custom tune it

DiehardFordguy · Oct 12, 2015

Legit! Thanks guys..

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Powerstroke Man 6.4 · Oct 12, 2015

drunk on diesel said:
Just bought a '14 PCM for $200 to retrofit to a 15 so we can custom tune it

not to derail the thread, but this is interesting what else is needed? would the 14 PCM be able to control say a 15 platinum?

drunk on diesel · Oct 12, 2015

to reiterate, the turbo is definitely different and is a major weak spot IMO

drunk on diesel · Oct 12, 2015

Powerstroke Man 6.4 said:
not to derail the thread, but this is interesting what else is needed? would the 14 PCM be able to control say a 15 platinum?

you have to add a wire to the PCM harness and change a sensor.

I have NOT done this yet, but we're planning on doing it

Powerstroke Man 6.4 · Oct 12, 2015

drunk on diesel said:
you have to add a wire to the PCM harness and change a sensor.

I have NOT done this yet, but we're planning on doing it

Post up when you do, its very interesting.

Swsignal5 · Oct 13, 2015

drunk on diesel said:
you have to add a wire to the PCM harness and change a sensor.

I have NOT done this yet, but we're planning on doing it

Are you sure because I replaced my under under the hood harness and it was a universal harness for all 6.7s. If you happen to need an old harness let me know. I have one just sitting at my shop

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