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DPC 2017/Day 3: Dyno Performance

Diesel Power Challenge 2017: Day 3

KJ Jones
Jun 7, 2017
Photographers: KJ Jones, Anthony Soos, Brett T. Evans, John Lehenbauer, Ben Cooper
As Diesel Power Challenge events go, the demonstration of horsepower and torque on the chassis dyno arguably is the most feverishly anticipated segment of the competition, and it has been so for more than a decade.
Photo 2/32   |   McCoy Black’s ’95 Dodge Ram rose from the bottom to the top, literally overnight. After taking a DNF in Day 2’s fuel-consumption/drivability test, McCoy’s rig put up a field-leading 3,387.6 (combined) horsepower-and-torque score.
In what seems like just a few short hours after concluding Day 2 activity on the pump (for the uninitiated, “the pump” is an old-school, but still-cool term used for a dyno) at ATS Diesel Performance (for the fuel-consumption/drivability test), nine competitors returned to the Arvada, Colorado-based diesel center to have their trucks strapped down on the rollers once again. This time, however, the second go-‘round was strictly for the purpose of seeing exactly how they all match up performance wise, in Day 3 of Diesel Power Challenge Presented by XDP.
Photo 3/32   |   For years, Diesel Power Challenge has been an event that went unseen by enthusiasts and fans, until the release of a DVD, several months after the event. That all changed on Day 3, when DPC 2017 “went live” on the Internet, with continuous real-time coverage that was broadcast on Facebook and right here on trucktrend.com.
That’s right; the all-hallowed dyno clash was the only competitive segment on the agenda. However, the landmark happening that really made the air electric on DPC 2017’s third day, was the launch of LIVE coverage of the Challenge (made possible by Fleece Performance Engineering), via video streamed on www.trucktrend.com and the Diesel Power Magazine Facebook page, as well as across countless other social media pages.
Photo 4/32   |   Dpc2017 Day 3 Dyno
While there was an assumed expectation by all crews and staff for Charlie Keeter’s ’04 Ford F-250 to be one of the heavier-hitting, if not the most dominant rig in the dyno session, the 2016 DPC champ’s 1,099.9 hp and 1,722.3 lb-ft of torque (2,822.2 combined) landed him in Fourth place. The position was a surprise to many folks in attendance (and also viewing the feed), but Charlie took not reaching the podium in great stride, and we’re sure he immediately began plotting next steps for achieving high scores in the remaining segments.
The dyno competition definitely was filled with surprises. McCoy Black’s ’95 Dodge Ram 2500—a 5.9L Cummins-powered truck that was completed just three weeks before the Challenge—leapt out of the event’s scoring basement with a phenomenal 1,255.8 hp, 2,131.8 lb-ft (3,387.6) run. On the previous night, McCoy left the dyno with concerns about a superheated engine, and carrying a last-place DNF score for the fuel-consumption test.
Finishing closely behind McCoy was Tim Jahn, who’s ’08 Ford F-250’s 6.4L Power Stroke engine blasted out 1,315.7 hp and 1,999.4 lb-ft (3,315.1). Patrick Whitcomb’s ’08 F-450 dualie rounded out the Top-3 dyno scores for the day, posting very solid 1,147.5 hp and 1,860.3 lb-ft (3,007.8).
Photo 5/32   |   “Calculating” Charlie Keeter kept a close eye on his competition’s performance on the dyno, logging each driver’s data (and matching it against his own) to get a ballpark estimate of where he stands in the overall scoring.
All in all, everything ran smoothly and without any carnage (with the exception of a leaking rear transmission seal in McCoy’s rig, which the team repaired at ATS Diesel Performance. No radical breakage is a bit atypical for DPC’s power-and-torque test, but the issue-free dyno pulls helps ensure that nine trucks will be ready to go for on-track events at Bandimere Speedway in Morrison, Colorado, on Day 4 of Diesel Power Challenge 2017 Presented by XDP.
Photo 6/32   |   For a second-straight day, McCoy Black and his team had to perform repairs on his ’95 Dodge Ram 2500 (the alternator and battery were replaced on Day 2). A leaking rear transmission seal was discovered after the dyno test, so a new one was popped in.
Enjoy the following photos, and complete breakdown of each competitor’s dyno results. And, to tune into our live coverage of DPC 2017, through the Diesel Power Magazine Facebook page.
1stMcCoy Black1995 Dodge Ram 250091,255.82,131.83,387.6
2ndTim Jahn2008 Ford F-25081,315.71,999.43,315.1
3rdPatrick Whitcomb2008 Ford F-45021,147.51,860.33,007.8
4thCharlie Keeter2004 Ford F-25011,099.91,722.32,822.2
5thLevi Krech2006 Dodge Ram 250031,018.31,758.32,776.6
6thShaun Doran2012 Ford F-2506876.21,321.82,198.0
7thKevin Jacob2005 Dodge Ram 25005757.81,270.22,028.0
8thRich Strube2005 GMC Sierra 3500HD4761.31,169.51,930.8
9thMike Bunkelman2004 Dodge Ram 35007586.31,119.81,706.1



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