Stock 03/04 Cummins 305/555 Dyno curve

[JohncJordanIII]

I tried looking but see advertise from performance company's and they all are radically different and find just advertise peak numbers at a given number only. Does anyone have the actual curve for HP and Torque preferably the crank values not to the wheels? Or can at least someone verbally tell me values at given RPMs from idle/slight engine load to full pull? Loving the truck and doing more data logging slightly loaded 3-4k pounds mix of payload and empty trailer for 4-5 hours then to maxing out my combined weight at as close to 23k as possible for another 4-5 hours. Yes I'm burning fuel for 8-10 hours just for testing and playing/logging data while chilling with my wife celebrating my 29th birthday lol. Thanks guys

 

[Ozymandias]

I just have it from the ISB 325/600, that won't help you.

 

[promisedland]

I just have it from the ISB 325/600, that won't help you.

I would like to see it!

 

[JohncJordanIII]

It's all good! Not really a 911 but would be sweet to see at the crank how the 305 operates on a Dyno pull in stock form. I went to different Cummins forums but they all seem to be more into modified and bombing rather then just driving and operating. Granted I'll be going down that slippery road but right now I'm just relaxing and enjoying it stock

 

[Ozymandias]

I would like to see it!

There we are

#ad

 

[JohncJordanIII]

See I like that curve! I would be curious if the 305/555 is similar just lower on power as the ratings are lower. I normally never let me RPMs drop below 1800 if I can help it when crusing anywhere becuase I feel it pulls and operates better above 1800. Thanks OZY!

 

[Ozymandias]

Yes below 1800rpm you don't get full boost.
That's why the torque increases so step between 1600 and 1900.

 

[GCroyle]

These are from a 2003 sales brochure "2003 Dodge Commercial" page 15.

That what you're looking for?

 

[JohncJordanIII]

Works for me thanks Gcroyle!

 

[promisedland]

There we are.

Was this ^^^ a stock engine Ozzy? It's a lil higher then I expected.

 

[Ozymandias]

Yes that's the Baseline before we installed the Smarty JR.

The other runs are way more impressive. On Performance setting I'm pretty close to the todays 400/1000 from factory.

*but I can't use Performance setting because it's way above my transmissions, so we just did one run on the dyno. I drive with the Tow setting all time, that's what my lightly built transmission can take.

 

[cerberusiam]

These are from a 2003 sales brochure "2003 Dodge Commercial" page 15.

That is at the crank with all the safeties off, no where near what the engine does in the truck.

Ozy's graphs are more indicative on the curves but a little higher due to a tuned truck.

 

[JohncJordanIII]

I'm happy with both graphs they give me exactly what I need thanks again for both graphs!