KODI COOKED ’EM ALL!
DAY 3 of Diesel Power Challenge 2018 Presented by XDP featured what is arguably the most popular competitive segment of the six grueling stages that comprise the annual event: the worshipped-by-all chassis-dyno showdown to determine which player’s rig is superior when it comes to making rear-wheel horsepower and torque.
One day after the Mustang dyno at
ATS Diesel Performance proved to be more challenging than some competitors might have anticipated (four drivers failed to complete a grueling fuel-consumption drive), our nine teams returned to ATS with a ton of
confidence—the trash talk among them confirms this—and ready to take on DPC’s marquee performance test.
Making four-digit horsepower in the Diesel Power Challenge dyno test is the optimistic performance goal most competitors have each year. And, while their trucks certainly may be capable of making that type of big steam on their respective “home dynos,” such variables as the Denver area’s high elevation (5,800 feet above sea level at ATS) and the fact
“Making four-digit horsepower in the Diesel Power Challenge dyno test is the optimistic performance goal most competitors have each year.”
that our competition uses data that is not corrected for that altitude often leave participants scratching their heads in disbelief, questioning the dyno’s accuracy, or trying to conjure up some plausible excuse for performance that falls (sometimes far) below what they expected and/or boasted about.
Basically, where a truck might post 1,200 (corrected) horsepower on a competitor’s regularly used dyno (that is typically in a lower altitude), its uncorrected figure on the ATS Mustang unit will probably be a tick less than 1,000 hp.
Understandably, the difference is dramatic and can be a bit humbling (one crewmember/ tuner confessed his pride was a little hurt by his truck’s performance on the pump). But when a team makes all the right moves when preparing for DPC Dyno Day—specifically by focusing on calibrating the ECM with an optimal tune for making power in thin air and adding a lot of nitrous-oxide for much-
needed additional atmosphere—boasts of big power can be backed up.
Diesel Power Challenge alum Dmitri Millard proved this by tuning Kodi Koch’s (pronounced as “Cook”) ’01 Chevrolet Silverado 2500HD and coaching Kodi (it was his first time ever driving on a dyno) to a dominant win in the segment (1,400.4 hp/2,417.7 lb-ft). Uncorrected horsepower and torque values are combined, and the overall total is used in scoring this segment.
There were smiles (especially in the Koch camp), and there were frowns. But all in all, the dyno segment was an awesome display of diesel-engine performance and great competition.
With one mighty pull, Kodi Koch's ’01 Chevrolet Silverado 2500HD eliminated any thought that the Mustang chassis dyno at ATS Diesel Performance is inaccurate. While other competitors tried hard to make the magic "1,000 hp," Kodi's rig made blasting 1,400 uncorrected horsepower to the rear tires look easy.
Competitors listen intently as Editor KJ Jones covers the "rules of engagement" for DPC's all-important dyno segment.
We feel "smoke," the diesel hobby's nemesis, is common and actually OK in dyno tests, drag racing, and other competitive events like Diesel Power Challenge, that are not held on public streets.
Garrett Osen's ’10 Ford F-350 is another member of the DPC 1,000hp club. After Garrett sorted out a nitrous-oxide issue, his black beauty posted a 3,036.2 combined horsepower/torque score.