Re-build fried engine?

[amermextrucker]

(11-19-2021 )Rawze Wrote:  

(11-18-2021 )Nostalgic Wrote:  ...
up my 2732 cpl to a higher tier - thinking 2919 right now, but will get some input before I order pistons and injectors
...

that would require different...

* Pistons - (different compression ratio, lower crown in center of higher hp pistons)

* Injectors - (bigger chamber size to allow for faster fuel flow at the higher volumes into the cylinders )

* Injector cam - (completely different injector starting angle to accomodate the different injector profiles)


* Entire head is different- (bigger exhaust valves in the head)

* Valve cam - (matches up with the bigger exhaust valves in the head)


* VGT Turbo is also different - (Heavy-duty titanium, high heat turbine and higher flow housing)

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The costs to convert one into a higher tier properly is just not worth it.

Not even if you REALLY needed that extra power for a super-heavy haul application with very high constant engine loads, because and especially not if your simply lookin' to pass someone up a hill or a bit of extra umph every once in a while. It is would far cheaper just to build it back the same tier and change the programming to give up a little bit of extra power ... and then learn to drive it so that your not torturing it in the higher power range for hours on end. A mid-tier built enigne with some extra HP (within reason) is what a lot of truck owners have.

Mid-tier builds are also much more fuel efficient than big-tier engines too (because of smaller turbo, smaller valves in head, higher compression ratio, etc.). over the engine's lifetime, this leads to tens of thousands in fuel cost differences alone as well.

The head is not listed here but some of the other part#'s are shown here: http://rawze.com/forums/showthread.php?t...9#pid25499

One also has to consider that higher HP parts is NOT going to make the engine last any longer for the average truck owner unless it is done to dissipate excessive heat buildup .. in a heavy-haul application where it is tortured at 90+% engine loads for hours on end daily .. and if that is actually the case, the difference is likely negligible at best. The higher hp components from mid-tier to high tier are not "stronger"or "tougher" in any way. The component changes are to allow more thru-flow of overall heat to keep at bay, heavy-load application heat buildup is all.

Just putting this here for those who might read this thread in the future as some things to weigh heavily before thinking it is a simple matter to do something like that.

Rawze ,

Just out of curiosity whats the max & safest for a CM2350 CPL 3937? . Currently its at 450hp / 1750 Tq.