Engine Tech / 158 posts found
495-cid Pontiac Powerhouse
Von Neal goes all-in with a Kauffman MR-1 iron block to accommodate a SCAT 4.5-inch forged stroker crank yielding 495 cubic inches for his 1965 Pontiac Tempest project...
New API Lubrication Standards Published
Working with the auto industry, oil marketers, additive companies and others, the American Petroleum Institute (API)...
Understanding Tribology
The tribologists at Total Seal use a tool called the Stribeck curve to engineer low friction piston rings. The Stribeck curve utilizes the formula Viscosity x Speed / Load to generate the lubricant film parameters.
Edelbrock Supercharger Kits for 2014-2020 GMC Yukon Denalis Deliver Top Performance
Edelbrock offers a, 150 horsepower, 50-State legal E-Force Yukon Denali...
Your Oil’s Best Friend – The Piston Ring
Have you ever wondered why automatic transmission fluid is “fill-for-life” and motor still has to be changed every 5,000 to 10,000 miles? The simple answer is contamination...
850 HP HELLCAT KILLER!
"We're calling it The Hellcat Killer", says Mike Petralia, owner and chief engine builder at Hardcore Horsepower & Dyno...
JESEL Reintroduces Premium Stud Rocker Systems
Jesel has built its brand of valvetrain innovation with shaft rocker systems there are some race sanctioning bodies that still prohibit shaft rocker conversions such as NHRA and IHRA Stock Eliminator classes. Despite their extreme sophistication in many respects, these “stockers” are still required to run stud rockers.
ARP’s Secret Fastener Technology Lab
ARP's test lab has quantified the potential for a 20% or more loss in clamping force with used nuts...
540ci All Motor Pump Gas Brute
The new AFR cylinder heads are the central component of this remarkable piece; a real world engine designed to deliver off the hook performance without expensive power adders and in the face of fluctuating fuel quality...
Blown Hi-Torque E85 Chevy Small Block
The key to power for this 628 HP 383ci blown street small block was the 177-cid Roots-style Weiand supercharger combined with E85 pump gas.
383 Chevy: Beyond the Crate!
Is the 383 Chevy the Most Popular Small Block Ever? That's easy to believe based on the number of rotating assemblies sold by Scat Enterprises. It's also noteworthy that the 383 originated from the performance community in the late seventies and became so popular that...
Understanding the Rod Length and Pin Height Connection
The relationship between connecting rod length, piston compression height and compression ratio is often misunderstood, largely due to the misuse of the term “compression”. In all honesty it probably shouldn’t be applied to piston terminology at all except as it relates to the shape of the piston crown surface....
Direct Injection Piston Damage? Check Your Oil
Low Speed Pre-Ignition or LSPI is a previously unrecognized combustion anomaly that leads to severe engine damage on late model turbocharged engines operating at low engine speeds and high loading. Driven Racing Oils...
All New Merlin IV Big Block Chevy
World Products has completely redesigned the famed Merlin Big Block Chevy casting, incorporating numerous improvements and new features to virtually every area of the block. Thicker decks and new deck height options increase the versatility of the Merlin...
Holley Releases 1050 CFM Gen 3 Marine Dominator Carbs
Holley/MSD is pleased to announce the release of Holley 1050 CFM Gen 3 Marine Dominator Carburetors, which exceed performance demands whether you're out for high-speed fun or just hitting the lake for an easy cruise...
Mercedes F1 Engine Achieves 50% Thermal Efficiency
The current Mercedes Formula 1 engine achieves over 50 percent thermal efficiency, a major performance milestone for IC engine technology. Check out the accompanying videos to see how it is done and how they are using it to win races in 2018.
Mopar Debuts Supercharged Hemi Crate Engine
Mopar brand unleashed a new 6.2-liter supercharged Crate HEMI® Engine Kit that injects 707 horsepower and 650 lb.-ft. of torque under the hood. The “Hellcrate” HEMI Engine Kit, is the first-ever supercharged, 707-horsepower factory-backed crate engine kit...
Are Your Pistons Round?
A piston’s operating environment strongly influences its overall shape and that form becomes complex when the piston is asked to perform multiple tasks while enduring a high order of abuse in performance applications. The piston’s job is to capture cylinder pressure via ring sealing...
GEN III Hemi Lifter Tick Solved
It’s no secret among engine builders and enthusiasts that hydraulic lifter and associated valvetrain issues have plagued GEN III Chrysler Hemi engines for years. Internet forums are awash with tales of engine failures, high repair bills and annoying noises often referred to as the “Hemi Tick”.
Speed Demon’s A/Blown Fuel Streamliner Motor
Engine builder Kenny Duttweiler's thoughtful approach to torque-managed small block LS power and rear wheel drive may soon deliver the first piston powered 450 mph speed record at Bonneville. And we just showed you how they're going to do it...
Factory 409 Fuel Injection: No Really!
In a bid to improve power and economy, GM engineering staff undertook extensive research on fuel injection options for W-motored cars and trucks back in the day. This research was conducted in the late fifties as you will note from the accompanying GM memo...
1290 HP, 421ci Small Block Chevy Build
Sportsman racers have pretty much gone big league thanks to a broad performance market that offers a remarkable variety of supercharging options and supporting components. Whether carbureted or fuel injected, the responsive aftermarket has provided...
Mystery Motor Development Engineer Bill Howell Tells All
Our first story on Chevrolet’s legendary mystery motor generated a lot of new questions and a few sour comments by desktop experts still insisting it was a revised 409 W-motor. So we decided to solicit more facts straight from the horses’ mouth. We consulted an old...
Chevrolet 427 Mystery Motor
Most of the testing and development was done with 409ci versions. Development engineers were able to generate the required power at that displacement, but in October of ‘62 negotiations with NASCAR resulted in approval to enlarge it to 427ci to gain parity with Ford. A mad rush ensued to design longer 3.65-inch...
Understanding Engine Fastener Quality with ARP
To some its just nuts and bolts, but the science behind the parts plays a critical role in keeping your high performance engine and other performance components together under high stress dynamic conditions. No one understands this better than ARP...