rel="nofollow" href="#ulink_96dd0daa-ebee-501c-aca0-dedc04bd8758">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: 1¾-inch vs 1⅞-inch on a Mild LS3
Test 4: 1¾ and 1⅞ vs 1⅞ Steps on an LS7
Test 5: 1¾ vs 1⅞ SC B15 LSX
Test 6: Effect of Collector Length on a 6.0 LS3 Hybrid
Test 7: Shorty vs 1⅞ 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
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
It is hard to believe that all of this dyno madness started with a phone call to then-editor of Turbo magazine, Kipp Kington. Who would have guessed that a simple story about his adventures at the Silver State Open Road race would send Richard Holdener on a completely different career path? Much to the dismay of his parents, the advertising degree was not utilized in some fancy office on Madison avenue. Instead, he decided to follow his passion for all things automotive.
First as a reader then as a writer, Holdener was fascinated by genuine testing. Forget all the advertising (and now Internet) hype about a product; he said “Let’s put it on the dyno and see how she does!” For his first day on staff, he was the guy pushing for dyno testing and acceleration testing the performance potential of products. As you might imagine, this type of verification was met with some resistance from advertisers. According to Holdener, “The readers deserved to know what works and what doesn’t.”
If you want to find Richard Holdener, look no further than on the dyno at Westech Performance. For more than 25 years, he has worked as a technical editor for a wide range of automotive magazines, both on staff and in a freelance capacity. Richard has specialized in direct back-to-back dyno testing of performance products. He is the crazy guy who compared every factory LS cam, 20 different LS intake manifolds, and dyno (and flow) tested no less than 30 different LS cylinder heads. He is also the guy who performed the Big Bang Theory test, where they cranked up the boost on a stock LS short-block to find out how much power it could withstand. He is the reason so many 1,000-hp stock, short-block LS engines exist.
Unfortunately, you can also thank him for the price increase on LS engines from the wrecking yard, as after the results of the Big Bang Theory, guys were swarming the wrecking yards gathering all the LS motors they could to install turbos. Always looking to illustrate what really works, Holdener even went so
