Nissan Coaxes 400hp from 88-pound, 3-cylinder Turbo Engine for Hybrid Racecar
January 28, 2014 10:17 AM
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Engine will power the ZEOD RC hybrid race car
When it comes to racing cars, lighter is always better as long as the components can survive the stresses of racing. In keeping with the “lighter is better” mantra, Nissan has unveiled one of the smallest engines that has ever been used on the racetrack. The new 1.5-liter, 3-cylinder engine will be used to power Nissan’s entry into the 24 Hours of Le Mans this year.
The tiny engine, which is called the DIG-T R, weighs only 88 pounds and uses a turbocharger to develop an impressive 400 hp and 280 pound-feet of torque. The engine produces 4.5 hp per pound giving it a better power to weight ration than the new turbo 1.6L V6 engines that will be used in F1 this year.
The little engine will be used to help power the Nissan ZEOD RC racecar. The drivetrain in the racing car will be able to switch between electric and gas power during the race, with the battery packs charged by regenerative braking.
The engine will be mated to a 5-speed gearbox, which will manage power from both the electric and gas engines.
"Our engine team has done a truly remarkable job with the internal combustion engine," said Darren Cox, Nissan's Global Motorsport Director. "We knew the electric component of the Nissan ZEOD RC was certainly going to turn heads at Le Mans, but our combined zero emission on demand electric/petrol powerplant is quite a stunning piece of engineering.”
According to Nissan, for every hour driven the car will be able to complete a single lap on battery power alone.
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1/29/2014 4:31:12 AM
Different driving styles is all well and good, but it doesn't change physics.
why do you think Cosworth made those cams you put in your car?
Well if you think it was to create a narrow power band you are wrong. Torque was down 18% at red line (8300 RPM, fully built engine) from the peak on the stock cams. With the Cosworth cams I'm only down 11% peak to red line; they helped broaden the torque range. Why? Cause that's what you want in an engine! For most driving conditions.
One of my friends got all crazy and put an enormous turbo in his STi (also pushed out the displacement a bit). A side effect of this is a very narrow power band due to lag, but when the turbo hits, it's violent. On C16 he's tuned to the high 700HP range. At the drag strip, it's no contest; out of the hole I look good, but then that huge snail spools and he walks me like I was standing still. But on a relatively, compact road course without a long straight, he can't keep up. His ~250 peak horsepower advantage that helps him dominate in the quarter, is trumped by the wider power band in a tight road course.
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