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Tag Archives: FAST Intake

Speed Secrets: What’s So Great About the FAST LSXR Intake?

Speed Secrets: What’s So Great About the FAST LSXR Intake?

When GM designed the LS1 engine, they didn’t give it an intake to do it justice. Thankfully, FAST came up with a solution. Richard Holdener explains the magic behind the FAST LSXR intake in this episode of Speed Secrets. Read More »

FAST® LSXHR™ 103mm Intake Manifold

LSXHR 103mm Intake Manifold

Memphis, TN – FAST® has developed the industry’s first polymer tunnel ram-style intake manifold, ideal for generating maximum power in boosted and naturally aspirated engines. Available for rectangular port LS3 and raised port LS7 engines, the FAST® LSXHR™ 103mm Intake Manifold ships with a set of “tall” removeable velocity stacks, however FAST™ also offers “medium” and “short” stack options that ... Read More »

All Dialed In: What is Tuning Worth?

Tuning is an important element when looking to maximize the power output of any combination, but what happens if you miss on the tune?

Words and Photos: Richard Holdener When we run tests on intakes, camshafts or cylinder heads, one of the questions we often get is, do you tune each combination? The obvious answer is yes, as tuning each combination to maximize the power output is the only way to know the true difference between them. This becomes even more critical when the ... Read More »

Is Bigger Always Better: 92 vs 102mm Throttle Body Test

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Words and Photos: Richard Holdener The question on the table today, is bigger really better? The quick answer is almost always yes, especially when it comes to things like throttle bodies. I mean really, doesn’t a larger throttle body flow more than a smaller one (of equal design)? True enough, the larger 102-mm FAST throttle body certainly flowed more than ... Read More »

FAST vs Dorman Intake Test

Equipped with the FAST LSXRT intake and Big Mouth throttle body, the 5.3L produced 479.2 HP at 6,800 RPM and 421.6 lb-ft of torque at 4,900 RPM.

Words and Photos: Richard Holdener The internet is great for a number of things, not the least of which is spreading rumors. The information superhighway is certainly king when it comes to getting info out to a vast audience, but therein lies the problem. As efficient as it is at getting info to millions of people almost instantly, it is somewhat ... Read More »

Fast Under Boost: LS Intake Test Part 2

Run with the FAST, the normally aspirated 5.3L also produced 486 HP, but at 6,800 RPM. Torque production was up with the FAST intake, to a peak of 425 lb-ft at 5,000 RPM.

Words & Photos By: Richard Holdener Back in Part 1, we compared a couple of popular intake manifolds on a normally aspirated 5.3L. The FAST LSXR and LSXRT have long been the go-to intake of choice for performance LS applications, but with so many new intakes available, we wanted to see if the FAST design was still a player. More ... Read More »

Fast as Ever: LS Intake Test Part 1

With so many intakes now available for LS applications, is a FAST intake still the hot set up?

Words & Photos By: Richard Holdener For some time now, the LS engine family has been the proverbial hot button of the automotive industry. The LS took the reins from the original small-block Chevy and has never looked back. Even after the introduction of the direct-injected, Gen V LT engine, the LS remained the engine of choice among Chevy enthusiasts, ... Read More »