As the only 2017 Ultimate Callout Challenge competitor running a P-pump mechanical injected Cummins engine for all three events, long time NHRDA competitor Todd Welch and his Power Driven Diesel team were fighting against the odds. Relying on the power from a massive mechanical injection pump on their Cummins based engine, Welch was the most unique competition truck at the 2017 UCC event. The 415 CI engine uses a Hamilton Cams solid block capped by a Hamilton Warhead cylinder head. They also use a Dodge 48RE built in-house by their own crew to handle 2,000+ HP as well as a Farrell Diesel monster injection pump with a Power Driven Diesel triple turbo system.
During their first UCC competition in 2017, the team experienced problems with the intercooler and pump timing gear during the drag race and dyno portions of the event. The team ended up coming in 24th place for the drag racing portion with a time of 15.757 seconds. They also came in 22nd place on the dyno with 754 HP, but that didn’t stop them from getting 1st place in the sled pull with 321 feet, 9 more feet than his approaching competitor. In one of the biggest surprises of the event, Welch and his team brought the truck to the line with cut tires. Taking things a step further, they brought six cut tires fitting dual cuts on the rear of the truck with a massive rear axle assembly. With his mechanical engine turned down for their first hook, Welch hammered the throttle putting the power to all six tires ending with longest hook of the event and took 1st place.
On the drag strip at the 2018 Weekend on the Edge in Utah, Welch’s pump ran away and the kill switch failed, causing him to throw the truck in neutral and rev the engine to 8,200 RPM. It was such an intense blow-up that it completely split the block in half and their stout 9/16 pushrods were the only component holding it up. This created the biggest/best/worst engine explosion anyone at the racetrack had ever seen! At UCC 2018, they came in 16th place on the drag strip with a time of 10 seconds. They also came in 7th place for the sled pull with 290.9 feet and hit 1,853 HP on the dyno landing them in 9th place. They came in 8th place for the overall competition and are proud to be rebuilding the same truck to compete at UCC 2019!
Welch has the support of his shop Power Driven Diesel and co-owner Will Terry, in addition to their family and friends to compete at the highest level of diesel competition. They also have the support of Diesel Performance Converters, Farrell Diesel Service, Hamilton Cams and Nyes Automotive. This shows the world that mechanical injection trucks can compete on the world stage. We don’t know whether Welch and his team will come out on top or not, but we certainly look forward to finding out at our 4th annual UCC 2019!