Testing carburetors on an engine dyno can sometimes be misleading. We've all seen tests showing large-cfm carburetors making more power—even on a small engine that nobody in their right mind would run ...

We put both engines on the dyno to see which made more horsepower and torque. It didn’t go as planned. Over the past year, we assembled two very mild small-blocks aimed at the typical hot-rodder ...

Featuring Screamin’ Eagle Extreme CNC-ported cylinder heads, an SE8-517 high-lift cam, new high-compression forged pistons, a high-performance cam bearing, high-performance tappets, patent-protected 4 ...

The Corvette ZR1’s 5.5-liter LT7 twin-turbo V8 may actually produce nearly 1,200 hp. If the ZR1’s engine delivers that much power, the ZR1X could reach up to 1,350 hp. According to Chevrolet, the new ...

Ford’s Godzilla 7.3-liter V8 is a potent performance engine-swap option. Brian Wolfe fortified one for boost, and it belted ...

If you want to dyno test your tuner car, you can probably find a couple of good facilities in any nearby major city. If you want to do similar testing at a smaller scale, though, you might find it’s ...

“The 2025 Kawasaki KX250 engine runs better in the midrange rpm and has better roll-on power, but it may not rev quite as far as last year’s model,” test rider Allan Brown said. “This is all OK ...

This video features a dyno test of the BMW P65 V8 race engine, originally used in the BMW Z4 GT3. The session highlights measured power figures and the distinctive exhaust sound of this ...

“The 450 SX-F’s engine package is excellent,” test rider Allan Brown said. “It offers good all-around power that builds controllably. Roll-on is manageable and it revs well too. This powerplant is one ...

We’ve all been there, right? There’s a modified sports car on Bring a Trailer. It’s supercharged, lowered, and on the right wheels, plus there are the words “dyno verified” in the listing. That gets a ...