![]() ![]() However, it is actually that the intake valve is closing too late and the combustion chamber is simply overfilling and blowing back out the intake port, before the intake valve closes. It is commonly related that "stand off" (air–fuel mix that gets pushed back out of the port, usually at full throttle / low rpm) is somehow captured by installing a longer intake pipe (stack). Most current aftermarket stacks are designed to be run "in" the airbox and a company that does research well will have some applications that have all the same length and some applications that have differing lengths of stacks on different cylinders. The length of the stack is known to have a direct effect on a particular engine's boosted power range. Modified engines often have the original air box and associated ducting removed and velocity stacks are installed as accessories. Modify the dynamic tuning range of the intake tract by functioning as a resonating pipe which can adjust the frequency of pressure pulses based on its length within the tract.Allow smooth and even entry of air at high velocities into the intake tract with the flow stream adhering to the pipe walls known as laminar flow.It is unrelated to the noise maker or signaling air horn.įunction Illustration of the velocity stack principle It can be of differing lengths and fitted to both carbureted and fuel injected engines. ![]() JSTOR ( October 2019) ( Learn how and when to remove this template message)Ī velocity stack, trumpet, or air horn is a trumpet shaped device fitted to the entry of an engine's air intake system.Unsourced material may be challenged and removed. Please help improve this article by adding citations to reliable sources. Our experienced craftspeople maintain the highest standards of quality and precision.This article needs additional citations for verification. Our machine work is done by hand on good ol’ knee mills, drill presses and lathes. Once poured, these castings are then cleaned, deburred and Roto-blasted. Our aluminum-only foundry takes extra measures to assure the same excellent quality castings each and every time. We are located in Long Beach, a hotbed of automotive aftermarket activity. Proudly Made in the USA All of our parts are made in the USA, right here in Southern California. It’s my guarantee…you’ll be getting the bitchin’-est parts and pieces available for your Hot Rod! With ACE I now have the ability offer similar cast parts.Īlso, by spending a lifetime at my family’s businesses – ARIAS Pistons and ARIAS Racing Engines – and the 50+ years’ of mentoring by my Dad, Nick Arias Jr., I’m able to extend the experience gained by designing, manufacturing, and application of cast, forged and billet engine components. Their beauty and functionality left an lasting impression. From my earliest memories of two Hemi-powered top fuelers push starting towards the line at Lion’s Drag Strip – then marveling at their thundering, smoky, ear-splitting pass down the 1320 – the M/T valve covers, Scott injectors and Delta blower drives are what stood out most on these creations. Now under the capable ownership of performance aftermarket industry veteran Nick Arias III, ACE’s goal is to continue Richie’s legacy of high-quality components and exceptional customer service.īeing raised in a high-performance environment, it was hard not to appreciate the beauty and intricacy of aluminum castings. After acquiring many original Mickey Thompson (“M/T”) and “Parker” patterns and molds, Richie was able to expand his lineup with historical, period-correct items – and Drag Master’s popularity grew! Frank “Richie” Richards created his very first part – a small two barrel scoop – in 2011, and grew his line to seven different scoops/air cleaners, plus a variety of Chrysler Early Hemi, Chevrolet, Buick Nailhead, Ford Y-block and Pontiac valve covers, valley pans, timing covers, manifolds, fuel blocks, tank brackets – and more. What began in 2011 as Richie’s Nostalgic Auto Parts has evolved into a one-stop shop for cast and billet aluminum early domestic engine components. The name might be new, but the history behind ACE goes back over 50 years. ![]()
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