Dyno says Ford Shelby GT350 is more powerful than we thought

Ready for some alphanumeric soup? Hennessey Performance is prepping its HPE800 supercharger package for the 2016 Ford Mustang Shelby GT350, so it put a freshly produced sample on the dynamometer to establish a baseline. After revving well into the higher octaves, the newest pony car registered 482 horsepower and 407 pound-feet of torque. That’s an eight-percent HP difference from its rated output of 526 hp, and a five-percent drop in torque from its rated 429 lb-ft.

Comparing apples to slightly different apples, when Motor Trend put a different GT350 on the dyno the numbers that came back were 467 hp and 374 lb-ft. The track monster GT350R, with the same engine and power rating, managed 471 hp and 376 lb-ft on the same day. There are many possible reasons for the mild horsepower discrepancy and noticeable torque difference, but the most obvious are that Motor Trend tested its cars on a 100-degree day in the California summer using 91 octane gas. Hennessey’s test took place more recently in Texas, it probably wasn’t anywhere near as hot, and Texas has a ready supply of 93 octane gas.

Hennessey’s high-speed run was a more straightforward challenge, taking the GT350 from a standstill to an indicated 170 miles per hour. With a 0-60 mile per hour time of 5.4 seconds they weren’t going for all-out times, just a compelling charge to somewhere near the coupe’s “more than 175 mph” top speed. Once Hennessey finishes its supercharger package none of these numbers will matter: the Texas tuner predicts output will bound to 808 hp and 657 lb-ft, good for a 0-60 time of 3.3 seconds and the quarter-mile in 10.8. You can watch the dyno run above and the top-speed effort here.

[Source: Autoblog]

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