Mailbag: The Difference Between Single-, Double-, and Triple-Pass Radiators
Q: What is a double-pass radiator? … A: In a single-pass radiator, coolant only crosses the radiator core one time. Fluid enters the inlet. It flows across the core in […]
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Mailbag: Is a 3-Row Radiator Better Than a 2-Row One?
Cooling Basics – Row Quantity vs. Tube Size In the radiator core, coolant flows through tubes. The tubes are joined together by the fins. More heat can be exchanged when […]
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Ask Away! with Jeff Smith: Building an L83 vs. LS Swapping an ’84 Corvette
I have an 1984 Corvette 350 that’s a real dog. What is the best way to get more out of it? I’d like to get 300 horsepower or more. — […]
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Mailbag: Explaining Gasoline Octane Ratings
Q: What do the different gasoline octane ratings mean? … A: The octane rating measures the performance of a particular fuel blend. The higher the number, the more compression it […]
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Mailbag: Advice for Building a Ford 427 Clevor Engine
Q: I’m building a Factory Five Mk4 Roadster and I would love to install a Boss Nine 427 engine, but it’s way out of my budget. Ford Performance offers a very […]
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Mailbag: Unibody vs. Body-on-Frame Chassis
Q: Which is better between a body-on-frame and unibody chassis design? … A: Most vehicles are built using either “body-on-frame” or “unibody” design. The terms refer to the style of […]
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Mailbag: Explaining Automotive Electric Relays
Q: What are the different types of electric relays? … A: An electric relay is a high amperage switch controlled with a small electrical input. Normally, the small input controls an electromagnetic […]
Q&A / Tech Articles
Ask Away! with Jeff Smith: Choosing a Transmission for Big Block-Powered Cruiser
I am building a ‘72 Caprice as a tribute patrol cruiser. I am pulling out the original 400 SBC and replacing it with a big-block 454 just so the look […]
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Mailbag: Explaining Thrust Angle for Both Street & Race Vehicles
Q: What exactly is the “thrust angle” on a vehicle, and why does it matter? … A: The thrust angle is an imaginary line that is precisely 90 degrees from […]
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Mailbag: Determining Tire Age by Serial Number
Q: How old are my tires? … A: The serial number of a tire is the most effective way to determine its age. The serial number may also be referred […]
