HTB LS Gen IV Perf on Dyno: Optimal Parts Combos for Maximum Horsepower

by Richard Holdener

Overview

Base your GM LS Gen IV engine build on proven dyno data so you can save time and eliminate guesswork.

Seasoned journalist and respected author Richard Holdener reveals effective, popular, and powerful equipment options for the Gen IV LS engine. With this information, you can select the parts to build a powerful and reliable engine. High-performance street, drag race, and other applications are covered. Then, the parts are dyno tested to verify whether they produce the desired and targeted performance increases. This comprehensive guide covers intakes, throttle bodies, manifolds, heads and camshafts, headers and exhaust, engine controls, superchargers and turbochargers, and nitrous oxide.

The GM LS engine has redefined small-block V-8 performance. It's the standard powerplant in many GM cars and trucks and it has been installed in a variety of muscle cars, hot rods, and specialty cars to become the undisputed sales leader of crate engines. The aftermarket has fully embraced the GM Gen IV LS engine platform, offering a massive range of heads, intakes, pistons, rods, crankshafts, exhaust, and other performance parts.

With so many parts available from a myriad of aftermarket companies, it's easy to become confused by the choices. This book shows you a solid selection process for assembling a powerful engine package and then demonstrates the dyno results of these packages. As such, How to Build LS Gen IV Performance on the Dyno: Optimal Parts Combos for Max Horsepower is an indispensable resource for anyone building GM LS Gen IV engine.

Product Details

ISBN-13:	9781613253403
Publisher:	CarTech
Publication date:	05/02/2017
Pages:	144
Sales rank:	233,537
Product dimensions:	8.30(w) x 11.00(h) x 0.50(d)

About the Author

Richard Holdener’s first automotive experience came at a young age with his father at a car show. He’s been hooked on horsepower ever since, owning a variety of performance cars and motorcycles. Richard has authored more than six different dyno testing books for CarTech, and he has also written numerous articles for Hot Rod, Car Craft, Super Chevy, Power & Performance, GM High Tech, and many other magazines.

Table of Contents

About the Author
Introduction

Chapter 1: Intake Manifolds
Test 1: Holley Single- vs Dual-Plane Intake on an LS3
Test 2: Fast LSXR vs Mast Carbureted Single-Plane
Test 3: Stock LS7 vs MSD Atomic for LS7, Modified LS7
Test 4: Stock LS3 vs Speedmaster IR on a Modified LS3
Test 5: Stock LS3 vs Speedmaster Fabricated Intake on a Mild LS3
Test 6: FAST Adjustable LSXR Intake on a Mild LS3
Test 7: Stock vs Kenne Bell 102-mm Throttle Body on a KB SC LS3
Test 8: Custom Dual-Plenum Adjustable-Runner Intake on a 468 Stroker

Chapter 2: Cylinder Heads
Test 1: Stock LS3 vs Chevy Performance CNC L92 on a Stock LS3
Test 2: Stock LS3 vs AFR 245 on a 408 Stroker
Test 3: Chevy Performance vs Brodix vs LPE on an LS7 495 Stroker
Test 4: Effect of Chamber Volume: TEA vs Speedmaster on an LS3
Test 5: Stock LS3 vs TEA vs Speedmaster LS3 on a 468 Stroker
Test 6: Chevy Performance vs TS vs SDPC on an LS7 495 Stroker
Test 7: Stock LS3 vs TFS Gen X 255 on a Modified LS3

Chapter 3: Camshafts
Test 1: Stock LS3 vs Comp Cams 281LRR on a Modified LS3
Test 2: Stock LS3 vs BTR Stage IV on an LS3
Test 3: LS9 vs LJMS Stage 2 Turbo on a Short-Stroke LS3
Test 4: NA vs BTR Stage IV Blower Cam on an SC LSX
Test 5: Effect of LSA on a Supercharged LSX
Test 6: Effect of LSA on a Stroker LS3
Test 7: Carb vs EFI Cam on a 417 LS3 Stroker

Chapter 4: Headers and Exhaust
Test 1: Stock Exhaust Manifolds vs Shorty Headers on an LS3
Test 2: Shorty vs Long-Tubes on a Modified LS3
Test 3: 13⁄4-inch vs 17⁄8-inch on a Mild LS3
Test 4: 13⁄4 and 17⁄8 vs 17⁄8 Steps on an LS7
Test 5: 13⁄4 vs 17⁄8 SC B15 LSX
Test 6: Effect of Collector Length on a 6.0 LS3 Hybrid
Test 7: Shorty vs 17⁄8 Hooker KB SC LS3

Chapter 5: Supercharging
Test 1: Kenne Bell ZL1 Upgrade at 13 and 18 psi
Test 2: Effect of Boost (Pulley Swap) on a Whipple Supercharged B15 LSX at 16 vs 23 psi
Test 3: 408 LS3 Hybrid Stroker: NA vs Vortech YSi at 13.5 psi
Test 4: LSX 376 B15-NA vs Magnuson TVS at 10.2 psi
Test 5: NA 427 LSX vs Procharger F1A at 17 psi
Test 6: 417 Stroker: NA vs Whipple 3.3 at 22 psi
Test 7: LS3 and Stroker: NA vs Vortech at 7.7 and 13.3 psi
Test 8: 427 LS3 Stroker: NA vs Kenne Bell 3.6 at 21 and 26 psi

Chapter 6: Turbocharging
Test 1: Effect of Ignition Timing on a Turbo 4.8/LS3 Hybrid
Test 2: 6.0 LS3 Hybrid: NA vs Single Turbo at 6.8 and 9.8 psi
Test 3: Turbo Cam: LS9 vs BTR Stage II 4.8/LS3 Hybrid
Test 4: Turbo Sizing: Big vs Small 76-mm
Test 5: Effect of Boost on a Turbo LSX B15 (14.6 vs 19.5 psi)
Test 6: 4.8 LS3 Hybrid: NA vs Single Turbo at 9.8 psi
Test 7: Turbo LS: Effect of Snow Water/Methanol Injection

Chapter 7: Nitrous Oxide
Test 1: Modified LS3: NA vs Nitrous Using 100- and 150-hp Shots
Test 2: 408 Hybrid Stroker: NA vs Zex Wet EFI Nitrous Using 100-hp Shot
Test 3: Mild LS3: NA vs Nitrous Works Using 100-hp Shot 114 Test 4: LS3-Headed 6.0L: NA vs Nitrous Using 100-hp Shot
Test 5: LS3 Stroker: NA vs Nitrous Using 150-hp Shot
Test 6: Stock LS3: NA vs Zex Nitrous Using a 200-hp shot
Test 7: Cam-Only LS7: NA vs Nitrous Express Using 125- and 175-hp Shots
Test 8: 468 LS7 Stroker: NA vs NOS Nitrous Using a 250-hp Shot

Chapter 8: Engine Builds
Test 1: LS3 Chevy Performance Crate Engine
Test 2: 600-hp Short-Stroke LS3
Test 3: Stock LS3 vs 416 LS3 Stroker
Test 4: LS3 vs 408 LS3 Hybrid Stroker
Test 5: Supercharged GM B15 LSX 376
Test 6: Stock vs 468 LS3 Stroker
Test 7: LS7-Headed 427 LSX
Test 8: RHS 495 LS7 Stroker

Source Guide