NASCAR’s director of vehicle systems, Brandon Thomas, says the new transmission “will reduce shift times for the drivers who are bold enough and smooth enough to go after it.” A full underwing improves NASCAR Next Gen aerodynamics Prototype NASCAR Next Gen car in the Daytona International Speedway garage. Once moving, drivers usually match their next gear to their RPMs and shift without using their clutch. ![]() But like the sixth-generation cars, drivers will likely only use the clutch to shift into first. ![]() The NASCAR Next Gen cars will still have three pedals. They can also lift the lever to disable the lockout and shift into reverse. Racers can pull the lever backward to shift their Next Gen car up a gear and push it forward to downshift. Instead, the floor-mounted gearshift lever will only move forward and backward. Not only will it have one more gear than the outgoing transmission, but the gearshift lever will not move in the traditional “H” pattern. The Xtrac P1334 is a five-speed (plus reverse) manual sequential transmission. Since the 2022 season, all NASCAR Next Gen transaxles have been built by longtime NASCAR supplier Xtrac. The NASCAR Next Gen transaxle will be a five-speed sequential manual NASCAR drivers Denny Hamlin and Cole Custer testing Next Gen cars | James Gilbert/Getty Images This makes the NASCAR Next Gen cars much capable in the corners. The transaxle drivetrain balances this weight between the front and back axles. The new NASCAR Next Gen cars weigh just 3,200 pounds, 3,400 with driver and fuel. Recent front-engine transaxle cars include the Cadillac XLR, Aston Martin DB9, and Mercedes Benz SLS AMG. In 1997, the Corvette converted to a transaxle layout, and Chevrolet has never looked back. The Pontiac Tempest leveraged a transaxle layout from 1961 through 1963. In the 1950s, Lancia followed suit, then Ferrari in the 1960s, and Alfa Romeo in the 1970s. They also found that combining the transmission and rear differential into a single unit saved weight overall.īugatti pioneered a front-engine car with a transaxle in 1929. The result is a front-heavy vehicle: the weight over the front wheels negatively affects the car’s handling.Įarly sportscar engineers discovered they could better balance a front-engine car by moving the transmission to the back of the vehicle. This layout placed a V8 motor and a manual transmission at the front of the vehicle and the drive axle at the back. The first six generations of NASCAR stock cars featured a traditional front-engine, rear-wheel-drive layout. A transaxle car’s weight is balanced NASCAR testing Next Gen cars | James Gilbert/Getty Images It even revolutionzed their aerodynamics. The NASCAR Next Gen transaxle impacted how the new cars corner, shift, and pass. These cutting-edge stock cars feature a transaxle–a combination transmission and rear axle unit–similar in concept to the gearbox in the Chevrolet Corvette. ![]() ![]() Tiptronic, Steptronic) there is only possible to manually control the electronically controlled automatic gearbox but only with certain disadvantages: losses in hydro-dynamic inverter (lower dynamics, higher fuel consumption, non-sport programming, electronic limits avoiding engine over-revving or under-revving).NASCAR’s Next Gen race cars debuted for the 2022 season. This system can not be mistaked with widespread systems combined with automatic gearboxes where a manual mode is available (e.g. When using the serial gearbox, use of the clutch remains unchanged when shifting. It is suitable for sports and tuning fans but also in the racing area, e.g. This feature brings newfound freedom due to faster shifting. The SEQSHIFT enables sequential shifting of the standard 5 and 6 speed gearbox forward or backward with shorter run than for standard H-type shifting. Sport sequential shifting for stock manual gearboxĪvailable for Mk4 Golf, Bora, New Beetle, Polo Mk5, Audi A3, Audi TT, Skoda Octavia, Skoda Fabia, Seat Toledo & Seat Leon.
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