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During the final round of the Stick Shift class at I-29 No Prep in 2017, the Unicorn C5 Corvette — finally dialed in after a round of suspension and tire changes — caught fire mid-pass when a loose injector o-ring sprayed fuel onto the engine bay. A competing Subaru driver’s fast thinking with a fire extinguisher kept real damage to a minimum, and 1320video walks through exactly what went wrong and why. The car lived to race another day. Watch to see how close it came to not.
A routine nitrous pass off Mexico Racing League’s camera turns into a real-time lesson in why a 100-shot kit needs its own dedicated fuel system to survive. What starts as a hard, loud launch ends with something under the hood giving way in an instant, and a comment section full of tuners explaining exactly why. The failure has nothing to do with the car being cheap and everything to do with basic nitrous fueling math. See what actually went wrong.
Gearhead Garage breaks down 11 of the most common muscle car upgrades that actually hurt performance, safety, or resale value — from oversized wheels to spool rear ends. Some of these mods are things owners save years to install. According to this list, that might be the problem. Watch Part 1 to see the full breakdown.
This 1978 Pontiac Trans Am checks nearly every box serious collectors look for: the handling-focused WS6 package, the rare four-speed manual, and the big-block-adjacent 400 four-barrel, all still together after more than four decades. Viewers are already piecing together its origin story from small details, including a telling clue about why its interior plastics never baked in the sun. Filmed on a real road test with Rob at Street Machines, not a static show floor. Watch to see how it actually drives.
A viewer’s engine ran smooth, started fine, and seemed simply low on power, until he pulled a worn camshaft and found some valves barely opening at all. Engineering Explained’s Jason Fenske breaks down the four things every gasoline engine needs to make power, and why each one quietly fades with age. One fix turned into a bigger power gain than anyone expected. What’s actually happening inside an engine that feels “just old”?
At an RT66 Test N Tune event in 2015, Rich Kent’s E85-fueled 1962 Mercury Comet did something a brand-new 707-horsepower Dodge Challenger Hellcat never expected: it beat it clean off the line. The video’s own description reveals the Hellcat had run nearly three seconds quicker just a week earlier, turning a simple grudge race into a years-long argument about driving versus horsepower. Watch to see the run that started the controversy.
A 1939 Buick sits silent for forty years, and John Haelig finally turns the key on camera. The handful of viewers who watched are split between a simple, all-caps reaction and a sharper question about whether the engine cranked slower than it should have. Behind that single detail is a real, high-stakes revival process, dried seals, gummed-up fuel, and an engine that could be damaged in seconds if brought back to life the wrong way. Was this prewar straight-eight actually ready to run again?
ChrisFix’s guide to restarting a car that’s been sitting for months has racked up more than eleven million views, and the checklist inside it explains why — oil, fuel, locks, and cooling systems all degrade in ways that can wreck an engine if you just turn the key. Along the way, ChrisFix and his crew stumbled onto something in the engine bay nobody expected to find. Watch to see what it takes to bring a long-dormant car back safely — and what was waiting under the hood.
This thirty-minute compilation from Vantaa Cruising, a recurring car meet in Tikkurila, Finland, captures a night of burnouts, custom hot rods, and modified American muscle that one Oregon-based commenter admitted could never happen back home. There’s not a single Mustang in the lineup, but there is a rubber duck mounted as a hood ornament. Watch to see how seriously Finland’s underground muscle car scene takes American car culture.
Modern muscle cars like the Hellcat twins hit numbers the original 1960s and 1970s era never touched, but they get there through supercharging and computer control instead of big cubic inches and low compression. Here’s a closer look at how Detroit’s horsepower war came back in the 2010s, and what changed in the engineering between the original muscle car boom and its modern revival.
Saabkyle04 gives the 1970 Ford Mustang Mach 1 the same in-depth, first-person treatment he brings to everything from vintage Impalas to Lamborghinis — start-up, exhaust note, and a full walkthrough of what changed when Ford swapped in the 351 Cleveland V8. One commenter’s memory of staring at his brother-in-law’s Mach 1 for hours in 1972 says as much about this car’s legacy as any spec sheet could. Watch the full review to hear that exhaust note for yourself.
A 1968 Dodge Charger body, a twin-turbo Viper V10, and a Corvette chassis underneath — this Swedish-built hybrid took five years to complete and reportedly left Jay Leno speechless. Street-legal and rated around 1,000 horsepower, it’s the kind of build that mixes three unrelated platforms into something none of their original manufacturers ever intended. Commenters keep coming back to one detail above all else: the sound. Watch to hear why.
International Dyno Authority walks a rough-idling 1969 Camaro Z28 through a full carburetor tuning session, chasing a damaged choke plate, float adjustments, and jetting changes one dyno pass at a time. The result: a 20 percent horsepower gain and 12 percent torque gain, entirely from tuning — no new parts required. It’s a clear, step-by-step reminder of how much power a poorly adjusted carburetor can quietly hide.
This 1969 Chevelle SS had already been through a full restoration before the V8 Speed & Resto Shop crew tackled its next upgrade: a Tremec TKO 600 five-speed overdrive conversion behind its 454 big-block, rated to handle 600 pound-feet of torque. The install keeps the shifter in its factory location and drops highway RPM dramatically, a detail one viewer calculated out to roughly 1,750 rpm at 60 mph. Watch the full install to see what it takes to give a numbers-matching muscle car an overdrive gear Detroit never offered.