2005 Duramax 10/10 tune Dyno Results

[ILLWIN]

Alright, this is my first Diesel tune, done on my personal vehicle. Dyno was done on a Mustang Dyno.

I am posting this info so others can benefit from the information. None of the numbers are inflated.

Details:

-2005 Chevy 2500HD Duramax
-Stock airbox with K&N filter
-4 inch exhaust with muffler, no DPF

Tune:

-I went by the tuning tutorial found here in the Diesel tuning section. Roger ramjet and mecanicman are two of the most helpful posters I found.

-I added 10% more fuel
-I added 10% more boost
-I modified the injection timing to 50%before TDC/50% after TDC
-Under Engine-Torque management- I increased the torque to max values.

Seat of the Pants:

-Its a whole different truck now. LOTS more torque in the lower RPM's. On the dyno I could not lock the trans in 4th gear with VCM controls because we had to plug the autotap off of the dyno into the DLC in order to get a RPM reading. If you could lock it in gear and read from say 1500rpm and up, the torque would be way higher.

Stock settings-

The truck made 268hp/478tq and ran a [email protected] in the 1/4 mile

10/10 tune-

The truck made 299hp/586tq and ran a [email protected] in the 1/4 mile

During the 1/4 mile tests the weight of the truck was put in at 6900lbs

Dyno is located in west Georgia.

I have attached pictures of the 2 dyno graphs.

Enjoy!

[Tiffo60]

so 30hp increase? Thats minimal compared to most diesel tuners i think, most are 80-140hp increases?

[ILLWIN]

that is what they advertise, but the ones we have dyno'd sometimes make less than 10 more hp, but they all make more torque

[Tiffo60]

that is what they advertise, but the ones we have dyno'd sometimes make less than 10 more hp, but they all make more torque

good to know

[Johns98TA]

Thanks for posting, thats good info. If you put the trans in tow/haul mode (performance shift) it should lock the converter once you get rolling in 2nd gear.

[angrygoat]

Nice tq pickup. Thanks for posting

[ILLWIN]

More results!

In the quest for making more power i went from 50/50 timing to 40/60 timing. 50/50 timing made more power and the truck runs faster in the 1/4 mile.

I have attached a picture of the dyno screen with the 2 runs overlayed. The runs were done 15minutes apart.

Blue-50/50 timing

Red-40/60 timing

The largest differences were 12hp and 22ft lbs

[heavyevans]

Thanks for posting this...I asked if anybody ever checked this tune in a different thread.