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Tag Archives: Featured

FAST® XFI Sportsman™ Fuel Injection Kit for GM LS Applications

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Memphis, TN – The FAST™ XFI Sportsman™ Fuel Injection Kit for GM LS Applications is a fully software-tunable EFI system designed for LS engines. Featuring the XFI Sportsman™ ECU, this kit provides total flexibility in tuning and monitoring engine fueling, acceleration fuel, timing and air/fuel targets. While offering PC based, on-the-fly tuning, the system also provides a self-tuning strategy that ... Read More »

TCI® Racing Starters for LS Applications

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Ashland, MS – TCI® introduces two starters for LS engines, designed to provide reliable starting performance for even the highest compression performance and race LS engines. For any high performance application where a powerful, lightweight starter is desired, TCI® offers the finest quality racing starter available on the market. Offering big torque for the highest compression race engines, these starters ... Read More »

FAST® XFI Street™ EFI System with EZ-EFI® Throttle Body

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Memphis, TN – The latest fuel injection kit from FAST® combines the advanced PC tunability of the XFI Street™ ECU with the proven reliability and performance of the EZ-EFI® throttle body unit. With a self-learning capability similar to the XFI Sportsman™ and XFI 2.0™ Fuel Injection Systems, the XFI Street™ EFI System provides a cost-effective option for those who don’t ... Read More »

RHS® Intake & Cam Packages For GM LS Cathedral Port Engines

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Memphis, TN – Get huge power gains to maximize the performance potential of your GM LS Cathedral Port engine with these matched and dyno tested RHS® Performance Packages. Developed on the dyno to maximize horsepower and RPM without sacrificing low-end torque, the RHS® Intake & Cam Packages offer two stages for naturally aspirated setups and two stages for forced induction ... Read More »

RHS® Pro Action™ Cylinder Heads for GM LS Cathedral Port Engines

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Memphis, TN – RHS® introduces its new Pro Action™ LS Cathedral Port cylinder head as a premium replacement head, ensuring great power on any performance or stock engine build. Available bare or assembled with premium COMP Cams® valve train components, these LS Cathedral Port heads are engineered with the same architecture as the factory head, and all stock components will ... Read More »

SEMA Show 2019: The Cars, The Products, The Fun!

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The show itself was filled with interesting booths and wild cars! Check out just a small selection of the massive show below! The SEMA Battle of the Builders Winner is Crowned Ringbrothers was recognized with several top awards at the 2019 SEMA Show in Las Vegas, Nevada for its newest custom vehicle builds – a 1969 Chevrolet Camaro known as “VALKYRJA” and ... Read More »

Speed Secrets: 4.6L 2V COMP Cams XE274H Dyno Testing!

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Working with the experts at COMP Cams, the crew at Speed Secrets is on a mission to demonstrate the power gains of a cam swap in a 2-valve 4.6-liter modular Ford engine. Not only will you see the power gains from the swap, but the engine is thrown on the dyno both naturally aspirated, and under boost. Why show both? ... Read More »

Speed Secrets: Why Build a 5.3L Stroker?

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Can a junkyard 5.3-liter engine be transformed into a fire breathing 383 cubic inch stroker engine? It can if you have the right combo! Working with the experts at COMP Cams, the Speed Secrets crew manages to accomplish just that. The 5.3-liter engine has become a very popular choice for builds and swaps, and for good reason – these engines ... Read More »

Speed Secrets: COMP Cams LS Rocker Arms Explained!

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The rocker arms are often the most neglected part of an LS engine. That’s not to say that the factory LS rockers aren’t pretty good, they are a good design, but yours probably still need to be upgraded. Working with the experts at COMP Cams, we learn exactly why, and what COMP has to upgrade those rockers to. There are ... Read More »

Speed Secrets: Using ZEX Nitrous on a Built 5.3L

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On this episode of Speed Secrets, the experts at ZEX. Nitrous is awesome and works well with just about any engine or setup. In this nitrous test, it’s time to give a modified 5.3-liter engine. If you love nitrous, you’re not alone, so do we. This topic has been covered in depth in several previous videos, and many dyno tests ... Read More »