Diesel Performance Podcast

• 4.157 Horsepower? Yeah, You Read That Correctly. Josh McCormack Is Smashing Records

  Chris Ehmke and Tim Mahoney are joined by someone you have heard a few times on this show, Josh McCormack! Josh fresh off his UCC win earlier this spring decided he was done with wowing the masses and put down a new record on the dyno. 4,157 HORSEPOWER. Insanity. He walks the boys through how he accomplished it and what you can expect to see out of him in the future. 

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• The Future Of 2020+ Powerstroke Tuning

  Chris Ehmke is joined by the lead tuner at Calibrated Power, Tim Mahoney, to discuss how the 2020+ Powerstroke 6.7 liter world is about to change. They discuss what this means for your 2020+ 6.7L, the ease at which tuning for the end user will be, and how adding 100+ HP is going to feel a lot different in these newer Powerstroke trucks. 

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  25:59

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  25:59
• Chris Patterson Talks About His Massive Weekend At UCC 2025

  Show favorite, Chris Patterson, owner of Unrivaled Diesel, took second at the Ultimate Callout Challenge 2025! He sits to talk with host Chris Ehmke to discuss how grueling and how much it takes out of the competitors and their teams. The whole thing is about survival. Chris is a survivor, he put down a screaming 5.54 at the drags, 2,300 horsepower on the dyno, and 318 feet in the sled pull. He gives us all the details on this episode!

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  53:14

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  53:14
• UCC 2025 Winner Josh McCormack!

  Josh McCormack has won the Ultimate Callout Challenge 2025! He joins Chris to discuss the weekend. Family man, YouTuber, and an overall great guy. Josh lef it all out there and came back with first place. He breaks down the weekend, his big 3,100+ horsepower dyno run, racing, and his Sunday at the pull. Congrats on the win, Josh!    Follow him on Instagram & TikTok: @justacommonrail24v YouTube: Horsetorques Diesel 

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• We Love This Cummins - Patrick Brown UCC 2025

  You have to see Patrick Brown's Cummins he is bringing to his first run at the UCC event. Chris sat down and talked with him about what he expects to see it do. Patrick is no stranger to competitions with having his eyes one time set on the Diesel Power Challenge nd having competed at King Of The Streets, he's ready to throw down at the UCC. Humble, determined, and doing wild things with such a cool Cummins, we are stoked to see what Patrick accomplishes this weekend!

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