Triple Turbos, Billet Sigma—America’s Favorite Super Stock Puller Is Alive Again!
Triple 107s and a billet Sigma for WP Developments’ “O-Line” project, a former ODSS champion finds instant success in the dirt, and the growing problem of spinning the crank gear on the 6.7L Power Stroke.
As promised, WP Developments has converted the “O-Line” Super Stock puller to triple turbos and is putting the finishing touches on the conversion this week. A trio of 107mm Stainless Diesel chargers will supply boost now—and that big air will be matched with torrents of fuel. Hanging from the front cover on the other side of the Cummins, you’ll find an 18mm (and 2,350cc-capable) billet Sigma pump from Fair Valley Performance. Another notable mid-season upgrade included hub work to narrow the rear end. Now, O-Line’s wider front stance and tighter rear track width will combine to provide maximum traction in the dirt. You can hear O-Line’s new voice here.
In The Dirt
They Don’t Come Any Cleaner (Or Meaner) Than This
Square body Chevy. Duramax Power. Perfect. But beyond looks and cool factor, Renee Dean’s old-school Bow Tie delivers. On Thursday August 7th, she and the “Harvest Wrecker,” a 1980 Chevy body bolted to an ’06 HD chassis, got the Pro Street class win at the Ashtabula County Fair in Jefferson, Ohio. After dropping her first hook, Renee came back around at the end and put up a 304.5-foot winning distance. Under the hood, her square body packs a Wagler-built Duramax that breathes through a 2.6-inch smooth bore turbo. The well-fueled engine is fine-tuned by Hardway Performance’s Ryan Milliken courtesy of a MoTeC stand-alone ECU.
Longtime Drag Racer Hooks To The Sled
The Swiss Army knife effect never ends with diesel trucks, does it? Former ODSS drag racing champion, Ryan Riddle, hooked his 7.70 Index third-gen Cummins to the sled for the first time ever over the weekend—and he may have found his next motorsport addiction… Ryan showed up at the local Saturday night pull (the 2025 Ada Farmers And Merchants Picnic Pull in Ada, Ohio), entered his regular cab Dodge in the 8,500-pound Open Diesel class, took a few pointers from fellow drivers, and proceeded to finish fifth in a field of 17 trucks. Not a bad start to what could easily become a new, close-to-home hobby for Ryan.
On The Dyno (Testing For Mexico)
Team Crazyhorse Preps For Race Season
It’s been hot in Texas. Real hot. But the weather will soon be cooling off, which means no-prep racers will be crisscrossing the state (and beyond) chasing money, glory, and bragging rights. Not surprisingly, Nathan Wheeler is readying his D&J-powered Ford for a fall that he hopes will be chock-full of success. Late last week, with his Crazyhorse Super Duty in the care of Truck Source Diesel, it maxed out the chassis dyno (2,000 hp) with very little fuel needed to do it. On top of his regional racing schedule, you can bet that Nathan’s S&S fueled, MoTeC controlled, and Nitrous Outlet-fed Cummins will be ready for a repeat performance at Cleetus MacFarland’s AWD vs. RWD Shootout on October 1st.
Power Stroke PSA For The 6.7L
The Dreaded Spun Crankshaft Gear—And Its Fix
Strokers Diesel and Automotive recently shed some light on the growing problem of spinning the crankshaft gear in 6.7L Power Stroke applications. The crank gear is of the press-fit variety, with no keyway in place to keep it from spinning. Despite what you might’ve heard, it’s a problem that isn’t reserved solely for high-horsepower engines. In fact, a seized CP4.2 high-pressure fuel pump (a highly common issue on 6.7L Fords) can lead to this vital gear slipping. Any time the folks at Strokers Diesel and Automotive have access to the crank gear, they offer the permanent solution of TIG welding the gear in place.
Written by Mike McGlothlin
