Increasing HorsePower -- What You Need To Know

[Rawze]

(01-22-2017 )Hammerhead Wrote:  Ok, I'll play too.
CM871
Stock 550hp 1850tq
CPL2919 with AV10098
KW T800 wide hood, pulling heavy haul. 175,000lbs average GVW.
RTLOO20918B
Eaton D46 pump model rear diffs with 4.30 rears

I know this is the big CPL, that was also used for the 600/2050.
Which OEM cal is the correct one for this truck model?

I know I could ask this offline, but lets let others learn too. Currently have @m*m^2 no HP increase overlay. IF I have hurt my motor and am goin home to rebuild it, it will have the liners set at .014-.015 and of course hand torqued head and very acute attention to detail during assembly.
Would you recommend MMing the OEM cal or go full custom tune?
I am looking for solid performance to move the weight without sacrificing longevity/reliability.
And of course, why?

With emissions in tack and using a factory program only ...

-- AV10098.xx (550-HP) (CPL 2919) - AV10271 for newer DPF Style. (1887 ft lbs torque 1150 - 1600 RPM band)

100% compatible with..

-- AV10103.xx (600-HP) (CPL 2919) - AV10275 for newer DPF Style. (2050 ft lbs torque 1150 - 1300 RPM band. Then it drops off from there.)
and...

-- AV10104.xx (600-HP) (CPL 2919) - AV10275 for newer DPF Style. -> has the same 1887 ft-lb settings as the AV10098 program in the lower rpm ranges, but has the HP up at 600 at 1600+ rpm, making it a lot less harsh on the engine.

Comparing the AV10098 to the AV10103...

The AV10098 has 1887 ft lbs at 1600 rpm where it should actually be run under high torque load to prevent liner issues long term, and the AV10103 has 1900 ft lbs at the same 1600 rpm. I.E. there is only 13 ft-lbs difference, and it cannot be felt at all up at the higher rpm range where you would want to pull hard with one.

Everyone brags about having that factory 2050 tune put into their in their higher hp trucks but it really is mostly just harder on the engine more then anything. The 2050 torque is only at the bottom end (1100-1300 rpm range) where it really is not that good for them. It makes for higher risk of liner issues on them, and is more indicative of something you would see like in a fire truck that makes a lot of short trips in a big hurry. Those types of tunes that have a lot of low end torque are hard on an engine and shorten its life quickly.


Comparing the AV10098 to the AV10104...

<- I would much rather think that this would be the best tune for a heavy haul highway truck long term, and NOT the 2050 tune that only has an advantage in low rpm while hammering hard at the liners. This would be a much better choice in the end if longevity was a concern at all, and there would be no measurable difference from the AV10103 at higher rpm (1650) where the engine should be worked at its hardest. I.E. - you get the same 600-HP without all the hammering in the low end.