Off-Season or On-Season?
The phrase “off-season” implies that another year of excitement is over, whether that be football, baseball, basketball, or in this case, auto racing. It’s true, the racing season has come to an end for 2015, and the off-season is underway. However, while many drivers might have more free time now than they did during the race season, this time of the year is a very different beast for engine builders.
Tipping the Scales
The basics of engine balancing have not changed over the years, but some of the nuances have. The equipment used to balance crankshafts has also become more sophisticated, faster to learn and easier to use thanks to smarter software, better user interfaces and more informative display graphics.
Keep the Valvetrain on Track
The key to choosing the right valvetrain components is to match the parts to the application. It sounds simple enough, yet many valvetrain component suppliers tell us there are a lot of misconceptions about what kind of parts are best for different kinds of performance applications.
How Oil Change Habits Are Killing Turbos
Turbochargers are used to enhance an engine’s performance and optimize combustion. To achieve good and complete combustion in the engine, a mixture ratio of 2.2 lbs. fuel and approximately 33 lbs. air is necessary (stoichiometric fuel ratio). During turbocharging, the density of the intake air is elevated and the air volume increased. The volumetric efficiency
Connecting Rods
They say an engine is only as reliable as its weakest link. The connecting rods that join the pistons with the crank can be a strong link or a weak link depending on the rods that are used.
Motor Oil Issues
One of the challenges of building engines for a living is making sure that every engine you build has good oil pressure and suffers no lubrication-related issues once it goes out the door. Good oil pressure requires main and rod bearing clearances that are within your target specs for the application, a good oil pump and the “right” motor oil.
Stroker Mania
Years ago, it was a big hassle and expense to stroke an engine. But one reason stroking is so popular today, is the convenient availability of the parts – usually sold in kit form to acquire those extra cubes. Many different strokes are offered from many different suppliers.
Cam Bearing Selection and Installation
Replacing camshaft bearings during an engine rebuild is a no-brainer, but don’t take the process lightly. Simply knocking out the old bearings and installing fresh ones with little regard to bearing selection, sizing or alignment is a big mistake.
Camshaft Selection and Design
Choosing the right cam from all of the possibilities that are out there can make a significant difference in how well an engine performs. It’s all about balance and correctly matching the cam with the cylinder heads, compression ratio, intake and exhaust systems, and RPM range where you want the engine to produce the most torque and horsepower.
Choosing the Right Oil Pump
Choosing a replacement oil pump for an engine you are building or modifying is a process that requires some thought. Original equipment oil pumps are usually adequate for most stock applications – but some are not, especially if an engine is being modified.
DBB Acquisition LLC Acquires Dura-Bond Bearing Company
DBB Acquisition LLC has announced that it has completed the acquisition of Dura-Bond Bearing Company, a division of privately held Melling Engine Parts. Dura-Bond is a manufacturer of Cam Bearings, Bushings, Valve Seats and Hardware for engine and transmission rebuilding since 1947. The Company is based in Carson City, Nevada. Terms of the transaction were
Diesel Oils Will Soon Be Changing
With May’s Engine Builder focusing on performance diesel engine technology, it’s the perfect time to alert you of two new diesel engine oil performance categories that will appear on the market in 2017. These new categories are the direct result of our federal government asking diesel engine builders and truck manufacturers to reduce greenhouse gas emissions.
MAHLE Aftermarket Introduces More Than 80 New Part Numbers
MAHLE Aftermarket Inc. recently introduced 84 new part numbers in April for various types of bearings, gaskets, piston rings, thermostats and cylinder components, now available for a range of light vehicle and heavy-duty applications.
Why Diesels Have Become ‘Greener’ and How You Can Benefit
For several years now, clean air and better fuel economy have been the primary focus of the transportation industry. Back in the 1970s, the clean air agenda came into full swing and it literally crippled performance as well as reliability. At that time, the diesel industry wasn’t being regulated by any of these emissions standards, but changes were on the horizon.
What Does Ethanol Mean To Your Shop?
Although ethanol alcohol is mostly made from corn, it seems to be a real hot potato! Almost all pump gasoline today contains 10 percent ethanol (E10) because the Renewable Fuels Standard Act requires it. The reasons why are partially practical, partially political and partially economic.
More Power Inside – Muscle Cars
There are many aspects of the famous and desired muscle car engines of the 1960s and ‘70s. They have become the holy grail of factory performance engines, but they are getting more and more scarce as the years go by. For car owners, the engines have evolved in recent years into three different configurations. Read on to learn more.
World Products Merlin III Block with Added Deck Height
World Products American made Merlin III cast iron big block is now available with an extra .050″ of deck height. This new feature allows greater versatility in selecting connecting rods and particularly in selecting pistons with additional compression height to keep the ring grooves and wrist pin bore isolated.
Important Facts to Share for Your Customer’s Next Diesel Oil Change
For your diesel power plant customers, there are a few things to consider for their next oil change to know if they’re giving the proper cleansing the engine needs. Negligent oil changes often lead to unwanted engine sludge and possibly engine failure.
The Challenges and Opportunities of Variable Valve Timing
Variable Valve Timing (VVT) has been incorporated into many late model import and domestic engines, including single overhead cam (SOHC), dual overhead cam (DOHC) and even pushrod V8s such as GM’s GEN IV 5.3L and 6.0L engines. It is a technology that offers performance, emissions and fuel economy advantages for everyday driving, but it also creates some challenges for engine builders.
Porsche’s 918 Spyder eAxle System
Part of what makes the 918 Spyder so revolutionary is its hybrid and plugin capability, which enables performance not attainable from a normal setup. The highly advanced eAxle system used on the 918 Spyder was developed in conjunction with Swedish firm and drivetrain industry leader GKN. The eAxle that supplements the 918 Spyder’s hybridized 4.6-liter V8 is an evolution of the company’s innovative eAxle drive.
