The T6 flanged, S500-based atmosphere unit shown uses a 94mm compressor wheel, a 104mm turbine, and a 1.15 A/R exhaust housing to get the job done. SoCal Billet Inc.’s Larry Steele built the compound turbo system around the use of sizeable chargers from Bullseye Power. The pistons are factory bore, Mahle cast-aluminum pieces that’ve been de-lipped and flat cut, and a stage 3 (S3R) ported intake manifold from Odawgs Diesel sits in place of the stock unit. However, there is no real rocket science involved in making the engine-assembled by David Ferguson-produce and survive 1,500-plus horsepower. With Wagler forged rods, triple O-ringed heads fitted with RCD Performance valvesprings, RCD pushrods activated by a Colt stage 3 cam, and ARP Custom Age 625+ head studs (torqued to 300 ft-lbs), Austin’s 6.0L is pretty serious. Sticking with the factory 5R110 TorqShift platform, Austin’s five-speed automatic is the pride of Red Diamond Diesel’s David Ferguson, who lends Austin a huge hand both in the pits and behind the scenes.
His ’06 Super Duty goes down the track safely and effectively thanks to a roll cage and front and rear four-link suspension built by Lyn Miller and Cody Fisher of Firepunk Diesel. After ending the 2019 racing season as a 6.70 competitor, Austin Denny pulled out all the stops for 2020 when he decided to bump up to 5.90 Index. Find out which is which in the pages that follow, along with what parts make both of these 1,500hp 6.0L’s so competitive. One is four-linked front and rear while the other still rides on the front coil springs and rear leafs. One truck relies on a 4R100 to handle its shifts while the other retains the 5R110. One utilizes a compound turbo setup and uses very little nitrous while the other sports a big single and huffs quite a bit of it. So how are these two getting away with campaigning the 6.0L Power Stroke in one of drag racing’s fastest classes? Are they still HEUI-injected? How much nitrous do they spray? What transmissions do they run? How light are their trucks? And how reliable are the engines? The answers may surprise you. Now these 5,000-rpm thoroughbreds can run the number consistently.
by bumping up the nitrous until running a best of 5.85 at 117 mph. Signed up for the 5.90 Index class, Austin’s ’06 F-250 put up a 5.76 at 120 mph right off the bat, while Charlie and his purple Super Duty nicknamed “Lucky” trimmed tenth after tenth off of their initial 6.20 E.T. All of that changed in May, however, when Austin Denny and Charlie Fish met at our first COVID ‘660 drag race at Wagler Motorsports Park.
Several were knocking on the door, but all had yet to officially pull off the feat. In the spring of 2020, no 1,500hp 6.0L Power Stroke had ever gone 5’s in the eighth-mile. These 5-second Fords are Bucking All Convention in Diesel Drag Racing
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