Increasing HorsePower -- What You Need To Know

[Rawze]

(09-22-2021 )lwilder27 Wrote:  This trucks emissions are still functional. That was a different truck. Looks like there are no options for this one, I will leave it alone.

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I checked the calibration on the truck I am working on the high exhaust back pressure on and it is different than what is stamped on the ECM. This is a CM2350 with active emissions.

Stamped on the truck is CPL 3711 and on the ECM is EF10025 ESN 75018335

On insite the calibration is EF10013.38

Are these compatible or could this be the issue I am chasing?

You need to find out the actual engine ser#. what is the ESN# listed on the valve cover? .. and does it match the one listed on the ecm?.

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Programs EF10013 and EF10025 are fuly compatible with each other for the most part ... HOWEVER, there are some differences. Here they are ...

--- The higher HP program EF10013 has smart torque enabled. Many people do not like this feature of the engine, as it drops torque after 30 seconds of hard engine acceleration or when climbing a hill. The EF10025 program does not have this feature turned on.

* Advertised power/torque...
-- EF10013 = advertised at 425HP@1800rpm/1650ft.lbs.
-- EF10025 = advertised at 370HP@2100rpm/1450ft.lbs.

ACTUAL power/torque...
-- EF10013 = 430HP@1700rpm/1650ft.lbs for 30 seconds of acceleration, then falls back to only 1450 ft.lbs due to its smart torque feature.

-- EF10025 = 385HP@1600rpm/1450ft.lbs, no smart torque feature.

* Other differences ...
-- CAC flow monitoring and error correction is more strict in the EF10025 program. I can only assume that it is a compensation for a different type of vehicle... Sometimes this is a problem .. but In this case, they are close ... so it normally should not be an issue if one or the other program is used.

They are otherwise fully compatible with each other, including all emissions hardware expectations. When climbing a hill ... The EF10013 program, after about 30 seconds, is going to fell just like it has the same exact power/torque, for the most part, as the EF10025 program unless it is driven at 1600 RPM and above.