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Tech Feature: Taking it to the Streets
We have all seen in our industry that a "streetable" racing engine or a "raceable" street engine appeals to a broad spectrum of potential engine buyers because of its flexibility. Yet, everyday street driving is not the same thing as serious drag racing. More
Racing Report: NASCAR Belt Technology is 'On Track'
Goodyear engineer Mike Gregg has played a part of the four-straight championship trophies the No. 48 team has hoisted — not to mention the great racing all NASCAR teams entertain fans with every weekend. More
Tech Feature: The Variables of Valve Timing
Today's cylinder deactivation designs are used to reduce the fuel consumption and emissions of an internal combustion engine during light load operation. More
Tech Feature: Northstar Supernova
Introduced in 1993, GM's 4.6L 32-valve dual overhead cam all-aluminum V8 engine - housed in the Cadillac Allante, Eldorado and Seville STS - was considered a quantum leap forward for U.S. automakers. Initially rated at 295 horsepower, the Northstar V8 has grown over the years to an incredible 469 hp at 6,400 rpm (STS-V Supercharged Northstar engine). More
Tech Feature: Detecting Misfires in OBD II Engines
With OBD II, there's no missing misfires. Most engine control systems with OBD II monitor the speed of the crankshaft between cylinder firings to detect misfires. The powertrain control module (PCM) notes the relative position of the crankshaft via the crankshaft position sensor (CKP) each time a trigger pulse is sent to the ignition system. More
When Parts Collide: Volkswagen and Audi Engine Repairs
In the early 1970s, VW/Audi designed a small, efficient and reliable engine that was easy to work on and made use of the then fairly new technology of a rubber timing belt without the possibility of damage if it failed. This two-valve-per-cylinder engine produced excellent power and economy, and really set the standard that many other manufacturers couldn't match. More
Tech Tip: An Economical And Effective Way To Refinish A Seal-Worn Shaft
Grooves from shaft wear can allow oil to leak out, which can result in bearing damage and failure. More
Tech Feature: Cooler 'Heads' Prevail - Pouring Over GM's LT1 Engine and Reverse-Flow Technology
The LT1 engine was used in a variety of General Motors models, including 1992-'96 Corvette (Y-body), 1993-'97 Camaro and Firebird (F-body), and 1994-'96 Chevy Caprice and Impala (B-body), Buick Roadmaster and Cadillac Fleetwood (D-body). More
Tech Tip: Toyota: MIL ‘On’ DTC P1349; VVTI Actuator
Under certain conditions, customers with various 2002 Camry and Solara, and 2001-’02 Highlander and RAV4 vehicles may experience an MIL on condition with DTC P1349, indicating a variable valve timing (VVTi) malfunction. In some cases, the cause of this DTC may be the VVTi actuator. Use the procedures in this bulletin to verify the operation of the actuator. Production Change Informat... More
Tech Feature: Engine Builders Have More Options Than Ever
The foundation of every engine is the cylinder block. Whether you are rebuilding a stock engine or building up a street performance engine, a circle track engine, drag engine, marine engine or whatever, you have to start with a good, solid block that's machinable and free from cracks and other defects. That's becoming more and more of a challenge in recent years because good cores for popular domestic... More
 
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