CMC High RPM Fueling

[2007 5.9]

This truck I tuned on to day was hitting a wall at 4000 rpm. Fueling was no problem up to that point as I had issues with rail relief popping. This one had the 11551035 cal. Truck belonged to a dealer and had it sold so was unable to spend much time with it.

Having full 165mm3 up to 37-3800 was never the issue...it was getting past the "Wall" at 4k. Guys are spending thousands of $ to swap to a CMB and correct injectors to get full fuel PAST 4k. Most pulling trucks whether 6.7 or 5.9 based are 4500-5500 in range. 3700 wont cut it pulling and in fact is quite fatal to the lower end in a 6.7 based application.

It would be MUCH more cost effective for these guys to keep their CMC controller and get the full fuel to 4500+ that they can get with the other option.

[Mitco39]

https://www.youtube.com/watch?v=6wjJx2eFPRo


It took me a solid day of sitting on the rollers but I got it right before I was ready to give up.

[Road]

Having full 165mm3 up to 37-3800 was never the issue...it was getting past the "Wall" at 4k. Guys are spending thousands of $ to swap to a CMB and correct injectors to get full fuel PAST 4k. Most pulling trucks whether 6.7 or 5.9 based are 4500-5500 in range. 3700 wont cut it pulling and in fact is quite fatal to the lower end in a 6.7 based application.

It would be MUCH more cost effective for these guys to keep their CMC controller and get the full fuel to 4500+ that they can get with the other option.

Swapping ecm is not needed to get past 4k

[comnrailpwr]

https://www.youtube.com/watch?v=6wjJx2eFPRo


It took me a solid day of sitting on the rollers but I got it right before I was ready to give up.

Was a .cax needed?

[Mitco39]

Yes it was, if you are stuck and need a file for a customer of yours PM me ill try and help you out.

[2007 5.9]

Swapping ecm is not needed to get past 4k

Proof??

There are MANY well known tuners that say otherwise without outside efi editing.

You say that

[Mitco39]

I did it about a month ago. 6.7 CM2100 ECM running 4000+ rpm. That video I posted just above was 100% efilive only.

Unless of course you meant excluding CAX, in which case I do agree with you.

[2007 5.9]

I did it about a month ago. 6.7 CM2100 ECM running 4000+ rpm. That video I posted just above was 100% efilive only.

Unless of course you meant excluding CAX, in which case I do agree with you.

My definition of inside efi live is no cax needed.

If you need a cax than its not possible with just public release software.

That's my point, unless you know how to properly find, address and edit the bin, your SOL.

[comnrailpwr]

Yes it was, if you are stuck and need a file for a customer of yours PM me ill try and help you out.

Pm sent

My definition of inside efi live is no cax needed.

If you need a cax than its not possible with just public release software.

That's my point, unless you know how to properly find, address and edit the bin, your SOL.

I am on the same page as you!

[Mitco39]

My definition of inside efi live is no cax needed.

If you need a cax than its not possible with just public release software.

That's my point, unless you know how to properly find, address and edit the bin, your SOL.

Thats the way everything is going, you either figure out how to do it yourself, or purchase "base" files with it already done so you can tune on top of it.