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Tag Archives: FAST

Speed Secrets: LSXR vs. Stock Truck Intake Dyno Test! Which Makes More Power?

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Working with the experts at FAST, it’s time to test the factory 5.3-liter intake manifold against the LSXR intake manifold. If this goes like any of the prior testing, the FAST manifold is going to be a tough one to beat. This is even truer with heavily modified engines, but how well will it work on a milder 5.3-liter engine? ... Read More »

Speed Secrets: Does a Larger Throttle Body REALLY Gain Horsepower?

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Working with the experts at FAST, it’s time to talk about airflow – not just any airflow, but throttle body airflow. There’s a lot of misunderstanding around the engine building community about intake manifolds and throttle bodies. When a FAST intake manifold was tested against a stock manifold, you’ll see big gains – the misconception is that those gains are ... Read More »

FAST® XR Series Ignition Coils for 2006+ Dodge 5.7L-6.4L Hemi Engines

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Memphis, TN – FAST® adds to the XR Series Coil line with coil-on-plug setups for 2006+ Dodge 5.7L-6.4L Hemi Engines. The FAST® XR Series Ignition Coils provide 15% more spark energy over OEM coils, as well as firing performance approaching 40,000 peak volts due to their use of premium, ultra-pure copper alloy windings. Proven to perform in some of the ... Read More »

Speed Secrets: Why Air-Fuel Ratio Matters When Tuning

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Working with the experts at FAST, the Speed Secrets crew sets out to get the down and dirty when it comes to tuning, specifically, the air/fuel ratio aspect of it as timing be covered later on.  When expert tuners and engine builders put a car or engine on a dyno to do tuning, they are constantly monitoring air/fuel ratio, but ... Read More »

Speed Secrets: Everything You Need To Know About Fuel Injectors

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When building an engine, everyone knows that the right head and cam combinations and/or boost can equal big power. With so much focus on the big things, it is easy to over look the basics. The root concepts that make up an internal combustion engine, like air, spark, and fuel. Although, everyone wants to make big power, no-one wants an ... Read More »

Speed Secrets: Understanding Timing For Your Best Tune

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So you’ve done your research and picked out the perfect parts for your application, put it all together, and now all you’ve gotta do is find a way to control the beast. That’s where FAST comes in with their impressive XFI management system. No matter the engine or combination, when it comes to tuning there are really two major elements ... Read More »

Speed Secrets: FAST Intake Manifolds Short Intake Runner Test

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The LSXR LS3 intake manifold is the result of extensive EFI research and development by Fast, the industry leader in fuel injection aftermarket performance parts. More flow and more power are among the many benefits this incredible intake manifold has to offer, but it doesn’t end there. The really great part about the FAST LSXR LS3 intake is its adjustability ... Read More »

FAST® E7 Programmable Ignition & E93 Coil Kit

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Memphis, TN – The FAST® E7 Programmable Ignition delivers the power and precision required when dealing with the high compression, screaming RPM and power adders used in today’s racing engines. And it’s now paired in a kit with the FAST® E93 Coil for the best spark output.  The capacitive discharge ignition provides up to 160mJ of energy and +- ½ degree ... Read More »

FAST® Universal EFI Fuel Sump Kit

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Memphis, TN – The FAST® Universal EFI Fuel Sump Kit is the easiest way to provide consistent, high fuel pressure to any fuel injection system being retrofitted to a vehicle with an existing low pressure, carbureted-style fuel system. The fuel sump kit is fully adjustable from 35-90 psi and works in conjunction with the factory carb fuel pump to supply ... Read More »

Speed Secrets: 408 Fast Intake Test

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Single plane carbureted intakes are notorious for making big peak power, and the Fast LSXR intake is the best of the best when it comes to LS EFI applications, but how do the two compare? To find out, on an episode of Speed Secrets Richard Holdener and the guys from Fast stage an intake shoot out. For a test engine, ... Read More »