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Dodge Challenger SRT Demon TransBrake eliminates the need for brake torquing

Performing the perfect launch is key to drag racing. In order to get consistent starts, the engineers behind the Dodge Demon developed TransBrake, a system that holds the output shaft of the automatic transmission to keep the vehicle stationary until launch. Rather than the traditional method of two-foot brake torquing, the system is triggered by pulling the shift paddle for quick and consistent launches. According to Dodge, the main benefit of TransBrake versus a two-foot setup is a quicker power delivery and higher engine launch torque potential. The system gives brake-free launches up to 2,350 RPM, a 105-percent increase in launch boost pressures, and a 120-percent increase in engine launch torque. Dodge also claims that using the paddle provides a 30-percent better reaction when compared to using your feet. In addition to shifting duties from your feet to your hands, the Demon's TransBrake will preload the driveline. Torque is loaded at the wheels, not the transmission. That means full torque delivery 150 milliseconds after the shift paddle is released. It should also help reduce the driveline shock that occurs when those 315 section rear tires get near-instant grip. The reveal is coming near. Continue checking out Autoblog and ifyouknowyouknow.com every Thursday until the New York Auto Show. Related Video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. New York Auto Show Dodge Coupe Performance drag racing dodge demon dodge hellcat drag strip

Jeep Wrangler 4xe's hybrid powertrain: Could it be headed to other FCA products?

On its own, the 2021 Jeep Wrangler 4xe plug-in hybrid is a big deal for the brand and the model line. It's the most powerful and most efficient Wrangler by significant margins, and it doesn't give up the off-road capability that makes the Wrangler so special. But another great thing about this hybrid powertrain is its potential to be transplanted into other FCA vehicles. Just to recap, the layout of the Wrangler's hybrid powertrain, front to back, is as follows: engine, clutch, electric motor, clutch, transmission. The engine is the same 2.0-liter turbocharged four-cylinder that's a standalone engine for the Wrangler. The transmission and electric motor are sort of one unit, with the motor and clutch replacing the torque converter of the transmission. And the transmission itself is the ubiquitous eight-speed ZF automatic gearbox. Its transmission code name is 8HP75PH. The ZF eight-speed is available in every FCA product with a longitudinally-mounted engine and rear-wheel drive or four-wheel drive, with variations in the amount of power and torque it can handle. Not only that, but the Ram 1500 and 2500 and the Jeep Wrangler and Gladiator all have powertrains that utilize the non-hybrid version of the 8HP75 transmission specifically. Even the gear ratios for that transmission as well as the 8HP70 used in the Jeep Grand Cherokee, Dodge Durango, Dodge Charger and Chrysler 300 are nearly identical to those in the 8HP75PH. And a Fiat-Chrysler representative confirmed that the transmission portion of the hybrid drivetrain is basically carry-over from the regular 8HP75. So a transplant could be a relatively simple process. As for which of these models would be the most likely to receive the hybrid powertrain first, the Jeep Gladiator and Ram 1500 would seem like good bets, since they likely have the most similar transmissions, and the Gladiator in particular because of its closely-related underpinnings to the Wrangler. Both are also highly profitable trucks that sell well and could justify the development costs of adapting another powertrain. And in the case of the Ram, there's the impending F-150 hybrid to think about. Although Ram isn't going after a fully electric model, a PHEV could be a nice middle ground. A potential limiting factor would be whether the hybrid powertrain would be sufficiently robust to handle heavy payload and towing demands, particularly over longer periods.

Tesla Model S P85D shows 707-hp Dodge Challenger Hellcat how to drag race

Street Car Drags hosted a bang-up event at the Palm Beach International Raceway last weekend, with a list of massive horsepower ICE cars going up against one another and a trio of Tesla Model S P85Ds. One of those duels pitted the 691-horsepower Tesla against a 707-horsepower Dodge Challenger SRT Hellcat, and the result was an old-school beatdown and a world record for electric cars. The Model S P85D ran the quarter in 11.6 seconds at 114.6 miles per hour, the new mark for BEVs at the drag strip. Proving its pace, it ran three more times in 11.69, 11.72 and 11.76 seconds. It got from the start line to 60 miles per hour in 3.1 seconds. The Hellcat, well, it wasn't a race, really. It was the Hellcat's driver's first time at a drag strip and his first time trying to launch it, so after an excellent burnout ahead of the lights, he rolled to the line, almost jumped the start, balked at the real start and spun his tires for the first 100 feet down the strip. The theory is that he overheated his street tires during that burnout, and the resulting greasy rubber did what greasy rubber does. By the time he got to the other end 17.46 seconds later the Tesla driver had showered and was enjoying a funnel cake. When things go right, though, Dodge estimates the Hellcat will do 11.2-second runs on street tires and it has been clocked at 10.85 seconds at 126.18 mph on street-legal drag radials. There's video of the not-quite-a-race above, and Drag Times says there'll be a rematch between the two in a couple of weeks. News Source: Street Car Drags via YouTube Green Motorsports Dodge Tesla Coupe Electric Luxury Performance Videos Sedan drag racing dodge challenger srt hellcat