Engine Tech / 170 posts found
How To Build Racing Engines: Cylinder Heads
When selecting a cylinder head for a particular application it is important to closely match the desired RPM range based on port dimensions that include port length, cross section, and mid- and high-range flow rates...
565ci Dart BBC Race Build
Our sample engine build is a 565-ci big-block Chevy based around a Dart Big M cylinder block and Dart Big Chief Pro 1 aluminum cylinder heads. Following the step-by-step procedures is designed to simplify the mating of all the important components in the engine...
Holley Pro Stock Electronic Fuel Injection Debuts at Winternationals
Anticipation finally crested as the NHRA Pro Stock entries began qualifying for the Circle K NHRA Winternationals on February 12th. Day one was a success as a full field of 16 cars showed up to qualify. All but one car made successful qualifying runs and indications point to some close racing...
Understanding Dynamic Compression Ratio
Your engine actually has two compression ratios, static compression ratio and dynamic compression ratio.
Turbocharged Y-Block for Bonneville
A turbocharged Ford Y-block in a GMC pickup truck seems a rather illogical choice for racing at first glance, but that's the nature of class racing at Bonneville and the El Mirage dry lakes. No other venues offer the broad choice of classes and...
Dart Reveals New Billet LS Cylinder Head
Dart Machinery has revealed some details of its forthcoming all-new billet LS cylinder head which breaks new ground by coming with full water jacketed cooling. Its the last of the OEM level pushrod style engines that offers grass root enthusiasts...
Why is the Speed Demon So Damned Fast?
Exclusive! What makes George Poteet's awesome Speed Demon streamliner consistently able to crack off seemingly effortless 400 mph plus runs on the Bonneville salt flats?
Lingenfelter C7 Intercooler Manifold
Lingenfelter Performance Engineering's liquid to air intercooler intake manifold for turbocharged or centrifugal supercharged 2014-2015 C7 Corvettes with the LT1 engine offers a unique combination of performance enhancements...
Chevy’s New 405 HP ZZ6 Smallblock
Chevrolet introduces the newest member of the small-block family, the ZZ6 Turn-Key crate engine. Delivering a solid 405 horsepower and 406 lb-ft of torque at 4,600 rpm, the ZZ6 remains a solid competitor...
New Boost Lock Prevents Boost Loss
Boost Lock is an innovative new product specifically designed to prevent the separation of inlet boost tubes under high boost conditions. When this occurs during a race you lose...
A Few Hot Engine Pics from the 2015 Street Nats
Engine guys love looking at hot engines to see what everyone else is doing. Here's a selection of great looking engines that were seen that the 2015 Street Machine Nationals. No doubt, you'll find more than few to your liking...
Holley Ultra HP Now For E85
Holley has raised the bar on E85 race carburetors. Holley's popular 4150 Ultra HPs are now available with components and calibrations making them ready for ethanol. They’re available in 600, 650, 750, 850 and 950 CFM and all come in the exclusive Hard Core Gray hard-anodized finish...
RTST Ported Flow Testing Valves
The RTS kit permits precise mapping of the airflow values around the circumference of the valve at any lift value. It helps identify shrouded...
Supercharged! Design, Testing and Installation of Supercharger Systems
Corky Bell is widely acknowledged for his expertise in turbocharging and supercharging. His new book Supercharged! Design Testing and Installation of Supercharger Systems is the ideal reference book for both novice and experienced forced induction fans. The book primarily covers fuel injected applications with very little mention of carbureted setups. That said, many of the calculations and math still apply and a dedicated effort can still make use of them. In effect this is a near textbook treatise on fuel injected forced induction and it includes the planning, construction and implementation of an intercooled BMW engine with electronic fuel injection […]
World’s First DOHC, 4-Valve per Cylinder Racing Engine
The key concept to this timeless racing masterpiece is the airflow enhancing inclined 4-valve top end operating in a pent-roof combustion chamber and actuated by dual overhead camshafts. One hundred years and millions of racing miles later this configuration is still the most desirable racing design...
Holley Introduces Vent Tube Spill Reduction Valves
Holley's new Vent Tube Spill Reduction Valves feature an internal valve ball that reduces fuel spillage from carburetor vent tubes in crash situations and reduces fuel slosh from vent tubes during hard launches/stops or while traversing rough terrain in...
Lunati Bootlegger Cams
The most powerful series of street performance cams ever produced by the Lunati design team. They build on the popular Voodoo® Series, but feature even faster opening rates, a controlled closing and far more area under the lift curve.