Myer just won the Ultimate Callout Challenge, and now that the documentary is out, the comments section has some strong opinions about it. Todd and Myer sit down together this week to work through the feedback and clear up a few misconceptions about what UCC actually is.

Most of the response has been positive, and the guys are genuinely grateful for it. But this episode digs into the comments they disagree with, starting with the drag race side of things. The truck runs a 48RE, a Dodge automatic out of the 2003 to 2006 trucks, built around the largest input shaft currently available in a 35 spline. They actually brought two built transmissions to the event on purpose, and they explain why.

On the dyno, a lot of people got upset about how fast the pulls looked and how much time the truck spent under load. They break down why that criticism misses the point. Competitors do not control the resistance on the dyno, the competition sets it, and every truck gets the same load. More power against a fixed resistance just means the run finishes quicker. They also cover why UCC moved away from scoring torque plus horsepower years ago, after competitors found ways to game that formula with gearing.

From there the conversation covers the aftermarket ECU running the whole truck, from injectors to timing, the mag valve controlling the second turbo, and why the nitrous stayed conservative until high rpm to keep the engine alive through the pass.

The sled pull gets its own breakdown too. Some commenters claimed the team ran three different trucks across the weekend. Todd and Myer clear that up. It is one drag chassis that also runs the dyno, then gets an axle and bracing swap for the sled. They also cover the sled weight box getting adjusted mid competition and why there is no out of bounds penalty in this class.

The bigger theme running through the episode is what UCC is actually built for. It is an invitation only event with almost no restrictions outside a weight limit and hitch height, designed to see what the industry can build without limits, not a street truck competition. If this episode got you fired up, subscribe on YouTube and follow along on your favorite podcast platform.

This build runs on parts that get proven under real pressure, not just talked about. If you want that same confidence in your own truck, PowerDriven.com is where to start.

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Kyle from Dark Iron Diesel flew his blown up 12 valve Cummins out to Power Driven Diesel so the crew could rebuild it from the ground up, and this episode follows the build while the guys dig into what actually separates a fast truck from a truck that just sounds fast.

Kyle's 12 valve made 650 horsepower before a nitrous mishap put a freeze plug through the block and warped the head. Instead of a simple repair, Todd, Will, and Myer turn it into a full stroker build, taking the 5.9 out to a 6.1 liter on a 6.7 Cummins crank that Power Driven now manufactures in house. They cover custom Wagler rods, ceramic coated pistons, a reconditioned head, a Colt Stage 4 cam, and an Aggressor 60/65 over 98 compound turbo setup aimed at 1100 to 1200 horsepower.

We filmed the full teardown, machine work, and stroker crank install start to finish, so keep an eye out for the build video covering every step of this engine in detail.

The crew also compares Myer's 1300 horsepower race truck against Kyle's Lamborghini Huracan, which he had on hand from a cross country supercar rally, breaking down 0 to 150 times and why horsepower alone does not tell the story without weight and traction factored in.

Kyle also talks about walking away from a potash mine job to do YouTube full time and his approach to dyno testing.

Subscribe on YouTube and follow along on your favorite podcast platform.

This episode covers a full engine build, parts, and machine work, all done in house at Power Driven Diesel. If you want to build something similar, the team can help you spec it out at PowerDriven.com.

Shop Power Driven Diesel: https://www.powerdriven.com

Todd, Will, and Myer dig into Fast 72, the new turbo limited diesel racing class that is already turning heads and stacking serious prize money. A single 72 millimeter turbo and a fuel only setup are producing six figure purses, and this episode breaks down why.

They start with the actual rules of the class. No nitrous, no water injection, no methanol, just engine, turbo, and chassis. From there they get into why the trucks making the biggest peak horsepower numbers on the dyno are not always the ones winning at the track, and why second gen Cummins trucks keep running away with it the same way they have been dominating UCC.

That leads into camshaft talk. Overlap, intake valve closing events, and how RPM range should dictate cam selection, and why a cam that makes huge peak numbers can actually bleed off boost and lose power down the track. The conversation then shifts to cylinder heads, covering valve sizing, port flow, and why a factory piston might outperform a forged piston at this power level.

There is also a quick detour into transmission durability, since the top two finishers in this class are both running stock automatics, plus a reminder that this is not a high dollar class. Anybody with an engineering mindset can be competitive here.

They close out talking about the next Fast 72 event in Texas this September, with a purse north of one hundred forty thousand dollars on the line for the season finale.

If you are into diesel performance, Cummins builds, or smart engineering beating raw horsepower, hit subscribe on YouTube and follow the show on your favorite podcast platform.

Everything the guys talked about when it comes to cams, cylinder heads, and turbo limited builds is the kind of work Power Driven Diesel lives in every day.

Head over to PowerDriven.com to check out the full catalog and get your own build dialed in.

Shop Power Driven Diesel: https://www.powerdriven.com