Engine Tech / 151 posts found
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...
Wiseco’s New Boostline Connecting Rods
Weisco's new extreme duty BoostLine connecting rods are designed for up to 2000 horsepower applications in boosted domestic V8s and an large assortment of imports as well. The rods are intended for extreme duty, highly boosted applications and...
Aeromotive’s New EFI to Carb Regulator
Aeromotive’s New EFI to Carb Regulator (P/N 13220) allows any car or truck, originally equipped with a return-style EFI-powered engine, to affordably convert to a standard carburetor while retaining the full, stock EFI fuel system components...
Profiling JE Pistons for Maximum Performance
There's a lot that goes into piston design and one of the most important aspects is the skirt design. Less drag created by the skirt in the bore equals more power. Take a look at how JE continues testing different skirt profiles for maximum power and performance..
A 735hp 438ci Small-Block Ford Bullet
This 438ci 735 HP Ford drag racing engine represents Hardcore Horsepower's unconventional, but forward-thinking effort to create a strong single four-barrel engine based on an all Windsor parts collection. The result is one bad ass...
Digitizing Combustion Chambers to Increase Engine Power
Extracting maximum power from racing engines requires extraordinary attention to small details that may be forgotten or easily overlooked. JE Pistons offers precision chamber digitizing so the piston designer can optimize the piston to...
One-Piece Rear Main Seals for Big Block Chevys
Rear main seal leakage remains a problem on engines that still use 2-piece rear main seals. We all know the time honored method of offsetting the seal parting lines so they do not match the main cap to block interface...
Building the 750 HP Ford Cobra Jet
Ever wonder how carefully your Cobra Jet drag racing engine gets assembled at the factory? No doubt you've seen old newsreels with sweaty line workers ramming pistons into cylinder blocks on an endless conveyor line or...