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Steel Vs. Aluminum Rocker Arms: Does It Make A Difference?
Rocker arms are an essential part of overhead valve engines. But how essential is it to keep track of whether they're made out of steel or aluminum?
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The 90-Degree Torque Problem: How Engineering Bent Power Around Corners
Torque naturally prefers to move in a straight line. So how does the engine manages to overcome 90-degree bends to deliver that torque to the wheels?
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Smokey Yunick's Hot Vapor Engine Was Equally Genius And Horribly Unsafe
While engines can be inefficient with burning fuel, Smokey Yunick created a Hot Vapor design that could have solved this issue if it wasn't also dangerous.
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Why The Porsche 930 Is Known As The Widowmaker
In the 1970s, the Porsche 930 started a long line of turbo-powered beasts. But it gained the "Widowmaker" nickname for reasons that weren't so positive.
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Why Toyota Only Built Two Convertible 2000GTs
The Toyota 2000GT was rare, even when it was new, but the convertibles were so scarce just two were ever made. We decided to find out exactly why.
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How Bosch's Magneto Ignition Device Made Spark Plugs Possible
Bosch managed to create a timeless design when it introduced spark plugs to the masses. But it would have never come to pass if not for another invention.
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The Biggest Pros And Cons Of GM's Vortec Engines
Vortec engines have lasted for over three decades. There are reasons as to why they lasted so long, but there are also reasons as to why they fell out of favor.
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What's The Difference Between Honda B-Series And K-Series Engines?
Honda's B-Series and K-Series engines are popular among wrenching enthusiasts, but there are compelling reasons for choosing one over the other.
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Chrysler Playing With The Idea Of Bringing Back A Sedan To Double Its Lineup Size
There's a roadmap laid out to revive the brand that'll be revealed during an upcoming investor presentation in May.
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What's The Difference Between Platinum And Double Platinum Spark Plugs?
Platinum spark plugs are already a step up from copper. Double platinum plugs might seem like a straightforward upgrade, but it's not as simple as it seems.
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Volvo's Redblock Engine Is Basically Sweden's Chevy Small-Block
Volvo once created an engine known as the redblock. Its production didn't continue into the 2000s, but it's still regarded as a fantastic engine today.
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There Are Five Ways To Open The BMW i7's Doors
You can get the BMW 7 Series with doors that automatically open, and it's a real Sophie's Choice of how to do so.
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Ram's New America250 Special Editions Are Nonpartisan And Apolitical, And Don't You Dare Suggest They Aren't
Ram boss Tim Kuniskis would probably prefer it if you ignore just how MAGA America250 has become.
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2027 Infiniti QX65's Most Interesting Attributes Are Its Red Paint And Headrests
It's a coupe version of the QX60 crossover, with a variable-compression turbocharged engine that has a heart-pounding 268 horsepower.
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New Ford Mustang EcoBoost TLD Signature Edition Has Amazing Retro Graphics, And Only 550 Will Be Made
The graphics were created by Troy Lee Designs, who has been painting helmets for race car drivers for decades.
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New Mercedes-AMG GT Black Series Will Be Even More Extreme Than The GT3 Race Car It's Based On
The yellow-accented car seen here is the production Black Series, and it has a wilder aero package than the racer does.
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The 1996 Honda Civic Was The Largest And Most Powerful Car To Come With A CVT, And It Was Quicker Than The Automatic
Continuously variable transmissions (CVTs) aren't popular among enthusiasts, but cars like the 1996 Civic prove that they might be the quicker choice.
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New Renault Twingo's Wheel Options Put Other Hubcap Designs To Shame
The Twingo's Evolution trim level comes with "Domino" hubcaps, and they're some of the best hubcaps I've ever seen.
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2027 Mercedes-Maybach S-Class Sticks With The V12 And Looks Even Flashier
The V8 still comes standard, but why would you want that?
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9 Cool Cars Powered By GM's Legendary 3800 V6
The 3800 V6 never got as much attention as its V8 stablemates did, but it provided ample power for some of the coolest cars of the late '90s and early 2000s.
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Why Shouldn't You Use Multi-Vehicle ATF In Your Automatic Transmission?
Multi-vehicle automatic transmission fluid might seem like something that's easy to use with any vehicle. But it's better to use more specific fluid.
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ZF 8 Speed Vs. Aisin 8 Speed Transmissions: How Do They Compare?
ZF and Aisin make two of the most popular and most successful eight-speed gearboxes on the market, but how do the two transmissions stack up side by side?
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The OG Four-Door Porsche Sports Sedan Wasn't Even Built By Porsche
More than 40 years before the Panamera went into production, a four-door Porsche had already been conceived. But it was the brainchild of a Texan, not a German.
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Chevy LT1 V8s: A Comparison Of Three Small Blocks
The General Motors LT1 engines might be long-running, but the mills it has adorned are quite different. So which LT1 is which, and what are the differences?
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The '80s Car Feature That Would Fit Perfectly In The AI Hellscape Of Today
Modern cars are making use of artificial intelligence for plenty of features today, but one feature from the '80s feels like it came from the modern era.
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Cadillac Phases Out Torque Badges After 6 Years Of Nobody Understanding What They Mean
The numeric badges on the back of Cadillac's cars signified how much torque they had, in newton-meters, rounded up to the nearest 50. Yes, it was a dumb idea.
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This Weird Street-Legal Quad Is The Coolest Thing I Saw At Daytona Bike Week
Seeing a quad at a bike show isn't ultra rare, but seeing this custom street-legal quad from a defunct manufacturer might be the highlight of your day.
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