{{Short description|Small shovel for transferring coal to a furnace}} [[File:Boss302engine.jpg|thumb|A Ford Boss 302 engine with the optional factory shaker scoop]]
A '''shaker scoop''' (sometimes called a '''shaker hood scoop''' or a '''shaker hood''') is an automobile air intake for combustion air that is mounted directly on top of the engine's air cleaner and protrudes through a hole in the hood. Since it is fastened directly to the engine, it moves with the engine's movement and vibration on its mountings, hence the 'shaker' name.
==Design== Like all hood scoops, a shaker scoop is intended to provide a direct path for cool, dense air to reach an engine’s air intake, historically a carburetor.<ref name=CT-shaker/>
To the extent to which it is possible, a further desired gain is the 'ram air' effect, in theory taking advantage of the vehicle's speed to deliver high-pressure, cool air to the engine over a shorter, less restrictive flow path.<ref name=CT-shaker>{{cite web |url=https://www.carthrottle.com/post/what-is-a-shaker-hood-and-how-do-they-work/ |title=What is a shaker hood and how do they work? |author=Fernie, Michael |date=2016 |website=Car Throttle |access-date=27 October 2022}}</ref> However, because engines draw air in hundreds of cubic feet per minute, scoops may not raise intake pressures significantly at low speeds.<ref name=AW-shaker>{{cite news |url=https://www.autoweek.com/drives/a1907321/2014-dodge-challenger-r-t-shaker-review-notes/ |title=2014 Dodge Challenger R/T Shaker review notes |author1=Raynal, Wes |author2=Kozak, Graham |author3=Lingeman, Jake |date=October 6, 2014 |work=Autoweek |access-date=27 October 2022}}</ref>
===Origin=== thumb|Pontiac Firebird Sprint Turismo prototype, with visible shaker hood scoop
Although Pontiac performance technicians had been adapting intake setups on 1966 GTO’s that would later become known as the maker’s Ram Air packages, the earliest well-documented example of a shaker hood scoop was on the Pontiac Firebird Sprint Turismo prototype, often abbreviated as the PFST. Directed by John DeLorean, the PFST project received a shaker hood entirely out of necessity, when triple two-barrel carburetors were placed atop a straight-6 engine and topped with a large shop-built steel air cleaner. Because the air cleaner did not fit under the hood, the engineers simply cut a hole in it. This, however, is not the same as a true ram-air shaker scoop set-up, which sends air directly down a scoop attached to the engine into its carburetor.
An article on Hot Rod attributes the PFST's featuring in an issue of MotorTrend with Ford getting the idea to put the shaker hood to production.<ref name=HR-Pontiac>{{cite web |url=https://www.hotrod.com/news/how-the-pontiac-trans-am-was-born-part-1 |title=How the Pontiac Trans Am Was Born - Part 1 |date=2013 |website=Hot Rod |access-date=29 May 2025}}</ref>
===Factory-installed=== Larry Shinoda of Ford is credited with introducing the shaker hood scoop as a factory option and campaigning to make it functional. First available exclusively for the 1969 model year 428 Cobra Jet Mustang,<ref>{{cite news |url=https://www.motortrend.com/how-to/1610-show-quality-shaker-hood-scoop-detailing/ |title=Show-Quality Shaker Hood Scoop Detailing |author=Shaw, Tom |date=September 21, 2016 |work=Motor Trend |access-date=27 October 2022}}</ref> the option was expanded to other Mustang engines for 1970. Competitors quickly imitated Ford, and Chrysler offered one on the 1970 Plymouth 'cuda and Dodge Challenger, and Pontiac on the 1970{{frac|2}} Firebird Trans Am, which used a backwards-facing scoop to draw air from the high-pressure area at the base of the windshield.<ref name=Hemmings18>{{cite news |url=https://www.hemmings.com/stories/article/shaker-style-hood-scoops |title=Shaker-Style Hood Scoops |author=O'Clair, Jim |date=September 24, 2018 |work=Hemmings |access-date=27 October 2022}}</ref>
In the 2000s, factory-fitted shaker scoops were reintroduced with the 2003 Ford Mustang Mach 1<ref>{{cite web |url=https://performance.ford.com/enthusiasts/collector-vehicles/mustang/mach-1/2003.html |title=2003 Ford Mustang Mach 1 |publisher=Ford Performance |access-date=27 October 2022}}</ref><ref>{{cite web |url=https://performance.ford.com/enthusiasts/collector-vehicles/mustang/mach-1/2004.html |title=2004 Ford Mustang Mach 1 |publisher=Ford Performance |access-date=4 December 2024}}</ref> and 2014 Dodge Challenger ("Shaker" and "Mopar" models).<ref name="AW-shaker" /><ref>{{cite news |url=https://www.caranddriver.com/news/a15367124/dodge-declares-2014-the-year-of-the-challenger-introduces-shaker-and-mopar-14-models-2013-sema-show/ |title=Dodge Declares 2014 the Year of the Challenger, Introduces Shaker and Mopar '14 Models [2013 SEMA Show] |first=Alexander |last=Stoklosa |date=November 5, 2013 |work=Car and Driver |access-date=4 December 2024}}</ref> The 2003–04 Mustang Mach 1 was equipped with a model-specific 32-valve 4.6 L V-8 engine,<ref>{{cite news |url=https://www.hemmings.com/stories/2003-2004-ford-mustang-mach-1/ |title=It's Almost a Classic: 2003-'04 Ford Mustang Mach 1 |first=Terry |last=Shea |date=March 22, 2024 |work=Hemmings |access-date=4 December 2024}}</ref> to fill the performance gap between the less-powerful Mustang GT and the flagship Mustang SVT Cobra.<ref>{{cite news |url=https://www.motortrend.com/reviews/2003-ford-mustang-mach-1-2/ |title=2003 Ford Mustang Mach 1 |first1=Jack |last1=Keebler |first2=David (photographer) |last2=Freers |date=January 17, 2003 |work=Motor Trend |access-date=4 December 2024}}</ref> For the 2014 model year, Dodge announced the shaker scoop Challengers as limited-production models at the SEMA show in November 2013;<ref>{{cite press release |url=https://media.stellantisnorthamerica.com/newsrelease.do?id=15054 |title=HEMI 'Shaker' Returns — 2014 Challenger R/T and Mopar '14 Challenger Models Deliver Power, Performance and Even More Heritage-inspired Style For Hardcore Dodge and Mopar Enthusiasts |date=November 5, 2013 |work=Stellantis North America Media |access-date=4 December 2024}}</ref> shaker scoop availability was extended in 2015.<ref>{{cite news |url=https://www.caranddriver.com/news/a15357606/whats-shakin-dodge-announces-and-prices-new-shaker-challengers/ |title=What's Shakin'? Dodge Announces and Prices New Shaker Challengers |first=Rusty |last=Blackwell |date=February 17, 2015 |work=Car and Driver |access-date=4 December 2024}}</ref> The shaker package was available through the 2023 model year,<ref>{{cite web |url=https://cdn.dealereprocess.org/cdn/brochures/dodge/ca/2023-challenger.pdf |title=2023 Dodge Challenger (brochure |publisher=Fiat Chrysler Automobiles US, LLC |access-date=4 December 2024}}</ref> when the Challenger was discontinued.<ref>{{cite news |url=https://www.caranddriver.com/news/a46236136/2023-dodge-challenger-charger-last-built/ |title=The Last 2023 Dodge Challenger and Charger Have Been Built |first=Caleb |last=Miller |date=December 27, 2023 |work=Car and Driver |access-date=4 December 2024}}</ref> {{clear}}
==Examples== <gallery mode=packed heights=120px widths=200px> File:1971 Plymouth Cuda 440-6 Hardtop (24452748914).jpg|1971 Plymouth Barracuda with 440 6-BBL and shaker scoop File:CudaShaker6pack.jpg|alt=1970 Dodge 440 Six Pack Shaker Scoop|440 Six Pack Shaker Scoop in factory Argent Silver File:429Shaker.jpg|alt=429 Super Cobra Jet 1970 Torino Shaker Scoop and Intake|Shaker Scoop and Intake on 1970 Ford Torino with 429 Super Cobra Jet engine File:1969 Ford Mustang Mach 1 428CJ (22865677869).jpg|1969 Ford Mustang Mach 1 428 CJ File:1970 Ford Mustang Boss 302 (14376335324).jpg|1970 Boss 302 Mustang File:'70 Plymouth Barracuda Hemi (Auto classique).JPG|1970 Plymouth 'cuda File:1970 Dodge Challenger RT (14922593932).jpg|1970 Dodge Challenger File:1970 Ford Torino GT (27755459004).jpg|1970 Ford Torino GT File:1970 Pontiac Firebird Transam (17736059759).jpg|1970 Pontiac Firebird Trans Am File:1971 Ford XY Falcon GTHO Phase 3 Sedan (9956968536).jpg|1971 Ford Falcon XY GTHO Phase III File:1974 Pontiac Ventura with GTO option - factory original condition 2of6.jpg|1974 Pontiac Ventura (GTO) File:1977 Pontiac Can Am with TA 6.6 at 2015 Macungie show 1of3.jpg|1977 Pontiac Can Am File:2003 Ford Mustang Mach 1 Coupe (14370242858).jpg|2003 Ford Mustang Mach 1 File:2020 Dodge Challenger RT 50th Anniversary Edition (cropped).jpg|2020 Dodge Challenger R/T 5 </gallery>
Cars available with factory-installed shaker scoops included: * 1969 Ford Mustang Cobra Jet * 1970 Boss 302 Mustang * 1970 Plymouth Barracuda * Dodge Challenger * Ford Torino * Pontiac GTO * Pontiac Firebird Trans Am * Pontiac Can Am Grand Am * Ford Falcon XY GT Phase III * 2004 Ford Mustang Mach 1
== References == {{reflist}}
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{{DEFAULTSORT:Shaker Scoop}} Category:Automotive accessories Category:Automotive styling features