Diesel Power Challenge 2012

[Kennedy]

The 7.1 refers to the billet stroker crank yes.

[Kennedy]

Well guys we're in. Thanks for voting!

Now I just need to make this darn thing shift. Getting frustrated and might actually have to ask for help. It just doesn't act the way that it should.

[DieselDavy]

Congrats John!
Now What?

[Kennedy]

Now I need to work on my shifting so I can turn a decent ET.

I made some progress last week, but not enough. Managed 3 passes on the low tune and then the water pump let go. Good to get that one out of the way...

[More Power]

I heard last night that JK's truck produced nearly 1500-hp during the dyno portion of the challenge... Way to go John! I also heard that there was another truck that produced just a little more....

It'll be interesting to hear the rest of the story....

[Kennedy]

Lots of stories from the Challenge. I had the honor of going first on the dyno. I set the bar high, just not high enough for the win. Ended up in 3rd place.


Run 1 - 981.9 / 1686 (my 800HP tune on fuel only)
Run 2 - 1202.9 / 2000.2 (my 1025HP tune fuel only)
Run 3 - 1471.2 / 2466.2 (my 1025HP tune plus some juice)


Interestingly, if you took the uncorrected number from run 1 it is 796HP. It is my belief that CF can be thrown out the window. In this case CF was 22% or more. I've always disputd correction factors and this more or less supports my theory. Spool up lage etc definitely come into play, but once underway...


Running in the #1 slot can be advantageous but also leaves one vulnerable to being overtaken. Advantage in that others may expire trying to best the numbers. Disadvantage in that I did not know how hard to juice it plus teh upcoming trucks knew where they had to be to top me. Would have been nice to have numbers kept secret so that everybody brings their best...

[More Power]

Lots of stories from the Challenge. I had the honor of going first on the dyno. I set the bar high, just not high enough for the win. Ended up in 3rd place.

Run 1 - 981.9 / 1686 (my 800HP tune on fuel only)
Run 2 - 1202.9 / 2000.2 (my 1025HP tune fuel only)
Run 3 - 1471.2 / 2466.2 (my 1025HP tune plus some juice)

Interestingly, if you took the uncorrected number from run 1 it is 796HP. It is my belief that CF can be thrown out the window. In this case CF was 22% or more. I've always disputd correction factors and this more or less supports my theory. Spool up lage etc definitely come into play, but once underway...

Running in the #1 slot can be advantageous but also leaves one vulnerable to being overtaken. Advantage in that others may expire trying to best the numbers. Disadvantage in that I did not know how hard to juice it plus teh upcoming trucks knew where they had to be to top me. Would have been nice to have numbers kept secret so that everybody brings their best...

Correct me if I'm wrong, but I always assumed the "correction factor" was more about altitude correction for a non-turbo application. When a turbo'ed engine/vehicle is run on a dyno, the turbo is self-correcting from sea level up to nearly 10,000' elevation, so a CF doesn't really apply. But.... a CF figure is more entertaining...

You're right, the numbers should be kept secret till all trucks had run. I see it all the time at dyno events, where subsequent truck owners throw more at the dyno to beat someone whose truck ran before them.

Congrats.... Still awesome numbers...