Swiss engineer Dr. Alfred Buchi is credited with developing the first exhaust-driven turbocharger, sometime around 1912. By 1915, he published a proposal for employing a turbocharger on a diesel engine, but the idea was mostly ignored for the next few years. The first real world applications were in aviation, where turbochargers helped aircraft engines build […]
LS Engine: Intro to Supercharging and Superchargers
Superchargers come in many different shapes and sizes, but they are related by a common attribute: They generate boost pressure via an engine-driven mechanism. Typically, superchargers are driven by a belt connected to the crankshaft. This Tech Tip is From the Full Book, HOW TO SUPERCHARGE & TURBOCHARGE GM LS-SERIES ENGINES. For a comprehensive guide […]
LS Engine: Intro to Forced Induction
In general terms, and assuming everything else is equal, an internal combustion engine with larger displacement flows more air than a smaller-displacement engine. The engine with the greater airflow makes more power. This Tech Tip is From the Full Book, HOW TO SUPERCHARGE & TURBOCHARGE GM LS-SERIES ENGINES. For a comprehensive guide on this entire […]
Ultimate LS Cathedral Port Cylinder Heads Guide
Cathedral port cylinder heads have been mistakenly dismissed by many in LS-series circles for being “old-tech.” However, their thin cross-section allows for a high-velocity and smaller-volume runner design with excellent flow. For a street car, this design means excellent throttle response, torque and average power. Dyno tests have proven that comparable aftermarket cathedral port heads […]
LS Cylinder Blocks Guide for High-Performance
The cylinder block is the foundation the rest of the engine is built upon. If incredibly high horsepower, torque, and RPM are the goal, the needs may surpass the capabilities of even the best factory offerings. This Tech Tip is From the Full Book, HIGH-PERFORMANCE GM LS-SERIES CYLINDER HEAD GUIDE. For a comprehensive guide on […]
LS Cylinder Head Supporting Components Guide
Of course no book on cylinder heads would be complete without discussion of its supporting components. Available intake manifolds and rocker arms should also be considered when choosing cylinder heads. It may add to the cost or help save money; it may add to the performance or take away from the performance of the heads. […]
LS Race Port Cylinder Heads Guide
This chapter covers any cylinder head that uses an intake or exhaust flange that is not compatible or consistent with OEM patterns. To put it in more simple terms, a typical set of LSX headers and exhaust manifolds do not bolt up and neither do any LSX intake manifolds. This Tech Tip is From […]
Ultimate LS Rectangular Port Cylinder Heads Guide
Rectangular port heads boast a clear advantage in the flow department and are ideal for high-RPM, big-cubic-inch, and purpose-built drag racing applications. Factory castings are capable of 360 to 400 cfm when ported properly, which can make it difficult to justify an aftermarket casting. However, aftermarket castings boast designs more suitable for both more extreme […]
LS Engine Rebuilds: Break-In and Tuning Guide
Congratulations on a job well done—you’ve got a newly rebuilt LS sitting on an engine stand! Though the work of this book is basically over, we wanted to leave you with some final information that will help ensure your engine enjoys a trouble-free reinstallation and startup, followed by a long useful life. This Tech […]
LS Engine Rebuilds: Final Assembly Guide
It’s been a long road to get to where you’re at right now. Think about it: you came up with a plan of action for your rebuild before even turning a single wrench. You acquired the tools that were needed for the project, then set about the dirty process of engine disassembly. You then inspected […]
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