A cranky carburetor can lead to a number of problems—excessive fuel consumption, rough idle, hard starting, and more. We covered some of these issues in our Carb Detective and Carb Checklist posts. While a more-accurate diagnosis of carburetor issues may require more time, tools, and patience, there are few simple, quick tests that will help you
(image © superchevy.com) Q: I am getting ready to pull the trigger on a supercharger for my 1966 Chevelle. What should I do about my carburetor? Do I need to go larger to accommodate the increased airflow requirements of the supercharger? What else can you tell me about achieving the right carb setup for my application? A:
To truly understand how carburetors work, you first have to know Daniel Bernoulli. Bernoulli was an 18th century scientist who discovered that pressure is inversely proportional to velocity. This principle, called Bernoulli’s Principle, was originally applied toward fluid dynamics (think fuel flow vs. fuel pressure), but it also pertains to airflow. Specifically, as air speed increases,
Before electronic fuel injection’s microprocessors and sensors revolutionized fuel delivery, carburetors fueled high performance machines using mechanical components like metering systems and boosters. Over the years, carburetor manufacturers have developed different metering systems which affect performance differently. According the Quick Fuel Technology, choosing the right metering system setup and booster style is key to optimizing the output and performance
Does size really matter when it comes to fuel lines? According to the fuel delivery system experts at Fuelab, it does. It’s because fuel line size and length have a direct effect on the amount of fuel pressure drop your fuel system will experience. Too much pressure drop can inhibit the performance of both carbureted and EFI systems
We’ve got the answers—the Summit Racing tech department tackles your automotive-related conundrums. This week, we’re helping to choose the proper carburetor for a 400-cubic-inch small block. D.N. Bedford, OH Q: I’m building a a Chevy 400 small block for my 1986 Camaro. I’ve got a set of ported and polished heads, and I believe they have
OK, Thursday. We’ll play along. We’re jumping on the Throwback Thursday bandwagon with some vintage photos and literature, starting with this 1920s-era carburetor brochure a friend found in his grandfather’s basement. We love the highly detailed, exploded view of the float-style carburetor. The Toledo, OH-based company was well known for its float-style and diaphragm-style carburetors,
Trick Flow Specialties Introduces New Race Carburetors The airflow experts at Trick Flow have teamed up with Quick Fuel Technologies to produce four-barrel carburetors capable of feeding high-horsepower street and race engines. Trick Flow® Street Heat™ Carburetor This carburetor features a billet aluminum throttle body and metering blocks. Replaceable idle feed restrictors, power valve channel
[portfolio_slideshow id=10792] Engines produce vacuum, and over the past 120 years, engineers have contrived ingenious ways to harness its power to the engine’s induction system. Through a labyrinth of small-bore drillings in the carburetor, the vacuum draws a potent mixture of air and fuel. So formidable is the mixture, it empowers naturally aspirated full-bodied 500-cubic-inch
Ah, the carburetor. For some guys, it’s a symbol of American automotive performance…a genuine hot rodder’s answer to the “evils” of modern fuel injection. For others, it’s a source of great intimidation and frustration. But it doesn’t have to be. With help from the tech experts at Summit Racing, we’re sharing some typical cures to
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