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Tag Archives: Intake Manifold

Speed Secrets: How Much Power Do You Get From Heads/Cam/Intake on an LS1?

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Speed Secrets, COMP Cams, FAST, and RHS team up on this test to see how much horsepower you can get out of 5.7-liter LS1 when you upgrade the heads, camshaft, and intake manifold. Truth be told, this combination of upgrades can be applied to an LS engine to get similar results you will soon see from the test. From the ... Read More »

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 »

RHS® 24-Degree Aluminum Intake Manifolds for Big Block Chevy Applications

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Memphis, TN – New RHS® 24-Degree Aluminum Intake Manifolds for BBC Applications are proven to outperform competing products on the market. These manifolds are designed for maximum airflow and power with a 4500 Dominator-style carburetor flange. Engineered to fit most 24-degree style race cylinder heads, RHS® took additional efforts to ensure excellent port matching when paired with RHS® Big Block ... 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 »

Speed Secrets: FAST LSXR 102mm Intake Test!

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How much power are intake manifolds really worth is a commonly asked question. To try his hand at answering this question, Richard Holdener with Speed Secrets teams up with Comp Cams and Fast. The problem with this question is that even though it seems pretty straight forward, it’s really not. The reality is that the power gains from an intake ... 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 »

One Man’s Quest for a FAST-er Porsche

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The world of the Porsche is divided between the purists and the racers. One group wants to keep them all preserved in their factory form, and the other celebrates their heritage in motorsports. But, making fast cars faster will always be a constant, and through the years, tuners such as Singer, Magnus Walker, RUF, Lindsey Racing and Rogue have made ... Read More »