[Stingray]

It's been dyno'd.... http://wot.motortrend.com/hear-the-s...-the-dyno.html

At over 100° F and 20% humidity.... there was less than 12% loss = 467 whp and 374 lb/ft tq

The GT350 is rated at 526 hp and 429 lb-ft of torque. Because we're using a chassis dyno, the output we measure will be less than that, as it takes into account losses in the drivetrain. Additionally, the ambient temperature at the time of the test was more than 100 degrees with only 20 percent relative humidity. Although these are SAE-corrected numbers, we'd expect higher output at lower temperatures.

GT350 DYNOJET RESULTS:
467 hp (wheel) @ 7,200 rpm
374 lb-ft (wheel) @ 4,900 rpm

The GT350 put down 467 hp and 374 lb-ft to the wheels. Given the ambient temperature especially, that's a very healthy result.

As always, peak numbers are just one set of data points. It's the shape of the curve that matters. Notice that at very low revs, the V-8 struggles to make torque. At 1,500 rpm, it's producing just 238 lb-ft—not a lot for a big-displacement, long-stroke V-8. In real-world driving, that output is accompanied by occasional stumbles; it's clear the engine isn't happy at low revs. Torque builds slowly, however, until 3,250, when something big happens.

Very big. From 3,250 to 3,750 rpm, torque output jumps by a huge 27 percent. And from there to about 6,250 rpm, it's essentially a huge plateau of peak torque with a few bulges likely caused by resonances in the intake system. Even then, torque starts to fall only slowly all the way to the fuel cut. Ford quotes that as happening at 8,250, but our GT350 cut fuel earlier—8,200 rpm was the highest we saw, and even that only occasionally. Our best run made it only to 8,050 rpm before the limiter kicked in.