We built the Banks Sidewinder Top Diesel Dragster to push diesel past record-setting pickups and into a purpose-built rail. The real challenge is using diesel’s hard off-idle hit without upsetting the chassis on launch, so this car uses a slip-joint design that lets the front of the chassis work and absorb that instantaneous energy. Power comes from a 6.6L Duramax, and at this stage the program was already at 1,280 horsepower on the dyno and still evolving. Just as important, the Banks/Bosch motorsport and marine engine control strategy is what makes the combination possible. The point of this car is bigger than one pass: prove diesel belongs on the dragstrip, over 200 mph, and in the mainstream performance conversation.
Banks began its modern diesel performance program by returning to a category it already knew well: pickup-truck land-speed racing. The team had previously held the pickup-truck record for 11 years with the GMC Cyclone-based Banks project, and the goal was to surpass that mark with a diesel-powered truck. Unlike a purpose-built vehicle that had to be trailered to the salt, this diesel racer was built to remain functional. It towed its own trailer to the salt flats, delivered 24 mpg, and still reached a peak speed of 222 mph.
That same truck later ran the Hot Rod Power Tour, where it was described as both the fastest and the most economical vehicle on the tour. From there, the program expanded into what Gale Banks characterized as a pickup truck on steroids: an S10-based diesel drag project. The first record-setting effort used a Cummins common-rail engine, and it was followed by a GM Duramax-powered S10.
According to Banks, that Duramax S10 became the first and only diesel drag-race pickup to run in the 7-second zone. Its best cited performance was a 7.72-second pass at 180 mph, putting it roughly half a second ahead of any competing truck at the time. Those pickup projects established the progression from high-speed street-capable diesel trucks to a dedicated dragster.
The next step was a full dragster, and Banks emphasized the work done by the team in developing it. For the chassis, he turned to longtime chassis builder Mike Spitzer, making several trips to Indianapolis to refine the concept. A major design concern was the diesel engine's strong off-idle torque and the amount of power applied immediately when leaving the line.
The resulting car used a 276-inch wheelbase, with overall length close to 300 inches. It also featured a slip-joint chassis. In this design, two sections of the chassis can move relative to the upper tubes, allowing the front of the car to arch under launch. The purpose is to keep the front wheels on the ground while absorbing some of the instantaneous launch energy through controlled chassis movement. Banks noted that the chassis includes two tuning points, reflecting the level of adjustability needed to manage diesel torque in a drag-racing application.
Spitzer's experience was a key part of the project. Banks said Spitzer had been building rear-engine dragsters for about 28 years, beginning around the same era as Don Garlits. The naming on the car was also intended as a tribute, with more than one individual being honored.
This vehicle was presented as an NHRA Top Dragster car, meaning it was built for Sportsman competition within the NHRA's official racing structure. Banks described it as the first diesel car specifically intended to compete in that series. He was aware of two other diesel dragsters that had been pursuing similar goals, and said one of them had exceeded 200 mph in the quarter-mile.
However, he pointed out that a single fast run does not establish a record under the relevant rules. To set a record, the performance must be backed up with a second run on the same day, and the two runs must fall within 1 percent of each other. Banks believed his team still had some room before others could formally claim that territory, and the immediate plan was to begin testing and development at Speed World in Arizona.
At the time of this presentation, the dragster's 6.6-liter Duramax had most recently produced 1,280 horsepower on the dyno, and Banks made clear that development was still ongoing. The engine-management system was described as a joint Banks and Bosch effort, and that control strategy was central not only to the dragster but also to a parallel marine-engine program.
Banks used the occasion to announce that Banks had become the exclusive worldwide supplier of the 6.6-liter Duramax to the marine industry under an agreement signed with GM Powertrain only a few weeks earlier. In anticipation of that agreement, the company had developed an ECU capable of operating the marine engine, and that same motorsport-and-marine control unit was also being used in the dragster. Banks presented that ECU as a foundational technology: without it, there would be neither a viable marine-engine package nor a competitive diesel dragster based on this platform.
The immediate objective for the dragster was to establish a diesel record by exceeding 200 mph in the six-second range before anyone else could do so officially. But Banks framed the project as more than a record attempt. In his view, the dragster was meant to demonstrate the full capability of diesel power in a mainstream racing context.
He connected that goal to the company's earlier FIA international pickup-truck speed record, which Banks said still stood. Their two-way FIA average was 217 mph and change, while challengers had been closing in for the previous five years. Banks believed the truck itself had the potential for 240 mph, but said the team had no intention of running it again unless someone actually broke the existing record. For now, the focus had shifted to the dragster and then to an even more ambitious streamliner program.
Banks said the streamliner had already reached 382 mph using a 300-inch, 1953 Studebaker engine fitted with a 12-71 blower and running about 40 percent nitro. He estimated that combination at roughly 950 horsepower. The challenge, as he described it, was not simply making power but making a diesel survive for 120 seconds at more than 1,000 horsepower. If that durability target could be met, he believed the team could knock on the door of 400 mph with a diesel-powered streamliner.
He characterized the concept as a traditional American hot rod in spirit: one engine and rear-wheel drive, but powered by diesel. Much of the technology path was said to be similar to the dragster's, even though the streamliner itself was radically different in form. It would be 32 feet long, only 28 inches wide, and fitted with a rear vertical stabilizer. In Banks' telling, the dragster was the near-term competition platform, while the streamliner represented the ultimate high-speed expression of the same diesel-performance philosophy.
Banks repeatedly returned to the broader purpose behind these race vehicles: moving diesel into the mainstream both on the street and on the track. He described a pipeline of projects extending well beyond the dragster, including a Volkswagen Jetta program being developed with Bosch. That car was positioned as an entry-level diesel platform, around $21,000 and capable of 40 mpg, with the aim of shifting diesel's image from merely practical to genuinely desirable.
He also pointed to work in heavier-duty applications, including Class A trucks and discussions with major fleets in the United States focused on fuel economy. In that context, Banks made one of his strongest technical endorsements of the Duramax platform in the dragster, calling it the most fuel-efficient engine he had ever tested in 50 years. His larger strategy was to take the high-speed diesel technology proven in racing and transfer it downward into the hot-rod and street-performance market.
That philosophy was summarized in the phrase "guilt-free performance," a term Banks said the company had trademarked. The idea was to combine performance, fuel efficiency, and cleaner diesel technology under one umbrella rather than treating diesel solely as a workhorse or economy solution. The dragster, the streamliner, the marine engine, the Jetta project, and the fleet work were all presented as parts of that same long-term effort.