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Midwest Dyno Day At Randall's Performance

20 Diesels Spin the Rollers in Search of the Truth

Text By , Photography by Courtney Finch,

It’s a shop most would say is out in the middle of nowhere—yet there always seems to be 15 to 20 Fords, Dodges, and Chevys in the parking lot. If trucks don’t show up at Randall’s Performance and Accessory to be repaired, turned up, or accessorized, they’re there to run on its state-of-the-art SuperFlow chassis dyno. This is why the folks at Randall’s host an annual open house and dyno day, during which their customers and other diesel enthusiasts get a chance to see how much real-world horsepower their rides are actually making.

We headed to its facility, located in Gladstone, Illinois, to attend one of its all-day dyno events. We saw some impressive trucks grace the rollers and have provided the power-making recipes for the top three finishers. If you find yourself in the greater western Illinois or southeastern Iowa area next July, make sure you stop by and check out the event for yourself.

871hp Dodge Brian Randall

Truck: ’06 Dodge Ram 2500
Engine: 5.9L Cummins
Internal Parts: Industrial Injection competition engine, balanced rotating assembly, 14mm main studs, crankcase girdle, Crower billet-steel connecting rods, 0.020-inch-over Mahle steel, fly-cut pistons, ported and fire-ringed head, upgraded valvesprings, billet bridges, roller rockers, pushrods, 625 ARP head studs, ZZ Custom Fabrication intake manifold
Tuning: Smarty SSR
Fuel: Exergy 150 percent nozzles (300 hp), twin Industrial Injection 85-percent-over CP3s, modified fuel rail and feed tubes, AirDog lift pump
Air: Midwest Truck Products triple-turbo (two 63mm S300s over a 66mm S300)
Transmission: Goerend 48RE with all billet shafts

667hp Ford Corey Finch

Truck: ’06 Ford F-350
Engine: 5.9L Cummins (’05 engine)
Internal Parts: Hamilton camshaft, pushrods, valvesprings, and ARP head studs
Tuning: Smarty TNT
Fuel: Dynomite Diesel 90hp injectors, Industrial Injection 85-percent-over CP3, AirDog 150-gph lift pump
Air: High Tech Turbo 62mm over S475
Intercooler: Banks
Transmission: ZF-6 six-speed with South Bend dual-disc clutch (3600)

615hp Dodge Tim Svob

Truck: ’06 Dodge Ram 2500
Engine: 5.9L Cummins
Internal Parts: 625 ARP head studs
Tuning: Smarty TNT
Fuel: Flux 2 (100hp) injectors, Wicked Diesel Arson III CP3 upgrade kit, AirDog II 165-gph lift pump
Air: Source Automotive compounds—S362 over S475
Transmission: Sun Coast 48RE with all billet-steel shafts, flexplate, triple-disc converter, Kevlar and ceramic clutches, TransGo shift kit built by Performance Transmission in Clinton, Illinois

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