Note: This item includes ONLY the High HP interchangeable runners, without the intake manifold.
LSXR™ 102mm Intake Manifolds from FAST® now have the capability to shift torque and horsepower gains to a higher RPM than the original version, making them the most flexible options on the market.
About FAST®
The Leader In Fuel Air Spark Technology
Since the 1990’s, FAST® has been recognized as the industry leading developer of aftermarket electronic fuel injection technology. Year after year, FAST® engineers have released innovative products, driving the growth of the aftermarket EFI marketplace. With a technical support staff beyond comparison, FAST® has built close relationships with its customers by responding to their aftermarket EFI product support and development needs.
In 2001, FAST® became a member of the COMP Performance Group™. With the resources of CPG’s extensive R&D and Engineering department, the fuel injection innovator has consistently developed industry changing products; taking their EFI technology from the racetrack directly to the street.
Today, FAST® continues to drive the aftermarket fuel injection industry through ceaseless new product development. With a complete line of industry-leading fuel injection products including self-tuning and programmable EFI systems, polymer intake manifolds, billet throttle bodies, and tuning tools complementing the extensive CPG catalog of performance valvetrain and drivetrain components, FAST® is committed to bringing the best fuel injection experience to both racers and street enthusiasts worldwide.
Due to a patented removable runner design and the introduction of two additional runner sets, LSXR™ 102mm Intake Manifolds from FAST® now have the capability to shift torque and horsepower gains to a higher RPM than the original version, making them the most flexible options on the market. In addition to the original FAST® LSXR™ 102mm Intake Manifold & Runner Set, High HP and Race versions are now available. The new interchangeable, complementing runners are designed specifically for LS3, L99, L76 and L92* engines that are built for high performance applications. The High HP Runner Set is based on Daytona Prototype intakes and utilizes newly designed runners, which are shorter and straighter than conventional versions. The High HP version has been proven to make 8-10 horsepower over the original LSXR™ manifold with a 500-1000 RPM shift up in peak horsepower on LS3 performance engines. However, it maintains all of the same features and benefits of the standard LSXR version. The Race Runner Set features a short and straight runner design that rivals aluminum four-barrel intakes on horsepower potential. This manifold setup utilizes a race version of standard runners designed for all-out high RPM performance. It is ideal for race vehicles with serious performance modifications and race converters. The Race version provides a 15-30 horsepower gain with a 1000-2000 RPM shift up in peak horsepower, but will lose some low-end torque. The runners are interchangeable and available in kits so manifolds may be configured as the original LSXR™ with standard street runners, or the new HP or Race models. A master kit is also available featuring an intake manifold assembly and all three runner options.
Speed Secrets: How Much Power Do You Get From Heads/Cam/Intake on an LS1?
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 4.8-liter, through to the 7.0-liter engines, these engines respond! In all reality, the same concept is true for any make of engine you’re looking to upgrade – import or domestic.
To back it up, are you wondering why you would upgrade the heads, cam, or intake on an engine? It’s because the source of added power primarily comes from these systems. That’s not to say the majority of the power doesn’t come from the displacement and bottom end, but if you want to take that power to a new level, it’s time to upgrade these three parts.
Obviously, people do upgrade just one of these, with the camshaft being the most popular engine upgrade for LS owners. However, after you upgrade the camshaft, you’re still leaving a lot of power on the table if you leave the other two stock. Actually, after you’ve upgraded one, the other two are even more important to upgrade than they were in a stock application.
The test engine in this video is an LS1 crate engine from an early Camaro. After getting a baseline on the dyno, it was time to do the upgrades from RHS, COMP, and FAST.
RHSprovided a pair of 205 heads to replace the factory LS1 cylinder heads, and a healthy54-459-11 COMPcamshaft with a .617/.624 lift, 231/239 duration, and 113 LSA. AFAST LSXRintake manifold and 102mm throttle body.
The result is a gain of 125-horsepower and 46 lbs/ft of torque. Watch the video now to see the full test and final power figures!
