Its 103mm throttle body opening can be port matched to 105mm. We pit the stock LS3 intake vs the Edelbrock X-Ram vs the Speedmaster Downdraft 8-stack on a cammed LS. This stack set fits both the LS3 and LS7. The intake manifold also features two nitrous nozzle bosses per runner for clean and easy direct port system installations. FULL RESULTS Who Wins Stock LS3 vs 8 Stack vs X-Ram. The LSXHR 103mm Intake Manifolds interchangeable velocity stacks allow for the fine tuning of the LSXHRs powerband. The compound fuel injector angle aims the spray pattern for ideal atomization, resulting in maximum power production and superior drivability.Ī reversible top allows for forward or firewall facing throttle body installations. The FAST LSXHR™ 103mm Intake Manifold is designed specifically with boosted applications in mind and is rated for up to 45psi of continuous pressure. Testing has shown an average 30-horsepower gain between 5000-7500 RPM over competitor tunnel ram intake manifolds. Its polymer construction is not only lightweight and high strength but also virtually eliminates power-robbing heat soak that occurs with commonly available aluminum intake manifolds. This allows interchanging of the various runner lengths so racers can experiment with finding which combination makes the most power in their application. Tuning of the intake runner length to match the cam, head and exhaust combo. All the details of our ordering process can be found on the CONTACT page of this website and should answer all your questions.FAST LSXHR™ 103mm LS7 Intake Manifold 146204įAST® has developed the industry's first polymer tunnel ram-style intake manifold, ideal for generating maximum power in boosted and naturally aspirated engines.Īvailable for rectangular port LS3 and raised port LS7 engines, the FAST LSXHR™ 103mm Intake Manifold ships with a set of "Tall" removable velocity stacks, however "medium" and "short" stack options can be purchased separately. Shipping with the longer runner, optional velocity stacks offer different lengths. Please call to place your order by telephone. This second video was posted by Ken Ellison at Ellison's Machine in Glen Burnie, MD featuring a 525hp 289 Cobra engine being run on the stand. This video showcases the throttle response of Weber carburetion better than any I've ever seen. The first one is a Weber carbureted engine startup on a test stand by Power Hungry Performance. These videos were unsolicited and posted by these engine shops after installing our induction units. Here are two videos that show you our Weber-carburetion systems running. I wrote this manual specifically for anyone who has never done this before, so if you can read English and follow basic instructions, you will find it very simple. Fits Factory Air Flow Meter Sensor This Intake Kit Increase 60 Air Flow Compare to Stock Air Box. aircraft-quality fuel harness, a liquid-filled stainless pressure gauge, and a nicely-photographed, simple-to-follow instruction manual that guides you through the entire installation and setup procedure. CXRacing Cold Air Intake Pipe and Filter Kit For 10-15 Camaro 6.2L LS3 V8 4' Mandrel Bent Aluminum Pipe, Welded with 6' Opening Billet Aluminum Velocity Stack, Coupling with 6' High Flow Air Filter, Optimized for the Best Air Flow. Each unit includes a set of stainless intake bolts, an intake gasket set, a Synchrometer, low-pressure fuel regulator with the required fittings, a complete braided s.s. No shortcuts are ever taken.Įvery one is shipped 100% complete and ready to start, with nothing else to buy. Some of the customized systems take 2-3 days to build. The hi-ram design is suited to vehicles where height is not a. Every carburetor has been completely disassembled, prepared, and internally tailored to order. The intake runners are velocity stacked which provides higher air-speed over plain tubes. Now you can have all of the benefits of EFI and maintain the traditional looks of a carburetor. They by no means represent everything available.Įach assembly reflects a painstaking approach to detail. If you have been hesitant on switching to EFI because you like the traditional look of a carburetor There is no more need to worry Holley has you covered with the new Terminator Stealth Throttle Body Fuel injection System. I've tried to include at least one image for each type of unit, and as many photos as possible of the various options. The photos on this site show some of the units built here.
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