{"id":17471,"date":"2015-08-14T16:02:40","date_gmt":"2015-08-14T23:02:40","guid":{"rendered":"http:\/\/www.racingjunk.com\/news\/?p=17471"},"modified":"2015-08-14T16:02:40","modified_gmt":"2015-08-14T23:02:40","slug":"nhra-announces-2016-pro-stock-efi-requirements","status":"publish","type":"post","link":"https:\/\/www.racingjunk.com\/news\/nhra-announces-2016-pro-stock-efi-requirements\/","title":{"rendered":"NHRA Announces 2016 Pro Stock EFI Requirements"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"17474\" data-permalink=\"https:\/\/www.racingjunk.com\/news\/nhra-announces-2016-pro-stock-efi-requirements\/holleyefi-nhra\/\" data-orig-file=\"https:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2015\/08\/HolleyEFI-NHRA.jpg\" data-orig-size=\"1120,745\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"HolleyEFI NHRA\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2015\/08\/HolleyEFI-NHRA-300x200.jpg\" data-large-file=\"https:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2015\/08\/HolleyEFI-NHRA-1024x681.jpg\" class=\"alignnone size-large wp-image-17474 aligncenter\" src=\"http:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2015\/08\/HolleyEFI-NHRA-1024x681.jpg\" alt=\"HolleyEFI NHRA\" width=\"638\" height=\"424\" srcset=\"https:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2015\/08\/HolleyEFI-NHRA-1024x681.jpg 1024w, https:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2015\/08\/HolleyEFI-NHRA-300x200.jpg 300w, https:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2015\/08\/HolleyEFI-NHRA.jpg 1120w\" sizes=\"auto, (max-width: 638px) 100vw, 638px\" \/><\/p>\n<p>The NHRA announced its rules and requirements for the 2016 Pro Stock class as the category converts to electronic fuel injection system (EFI). \u00a0<a href=\"https:\/\/www.holley.com\/\">Holley<\/a> has been named as the sole provider for the EFI systems. The changes are being made to move the category to a more technologically forward position as well as control costs by requiring an NHRA-controlled 10,500 Rev Limiter to the EFI.<\/p>\n<p>Beginning in 2016, NHRA also will require Pro Stock teams to remove all hood scoops and reduce the length of the wheelie bars to a length specified by the NHRA Tech Department.<\/p>\n<p>Here are the requirements for the EFI:<\/p>\n<p><strong><u>NHRA 2016 PRO STOCK EFI REQUIREMENTS<\/u><\/strong><\/p>\n<ul>\n<li>\u00a0<strong>Engine Control Unit:<\/strong><\/li>\n<\/ul>\n<p>o\u00a0\u00a0\u00a0 Holley HP ECU part number 554-129 mandatory<\/p>\n<p>o\u00a0\u00a0\u00a0 EFI closed loop functionality permitted<\/p>\n<p>o\u00a0\u00a0\u00a0 <strong>Rev Limiter:<\/strong><\/p>\n<ul>\n<li>NHRA hard limiter set to 10,500 rpm<\/li>\n<li>Teams have the ability to set soft limiter to desired rpm level<\/li>\n<\/ul>\n<ul>\n<li><strong>Throttle Body:<\/strong><\/li>\n<\/ul>\n<p>o\u00a0\u00a0\u00a0 Holley part number 112-123 mandatory (25 sq. inches)<\/p>\n<p>o\u00a0\u00a0\u00a0 Must be mounted forward facing and remain in the engine compartment<\/p>\n<ul>\n<li><strong>Fuel Injectors:<\/strong><\/li>\n<\/ul>\n<p>o\u00a0\u00a0\u00a0 Holley part number 522-568 mandatory<\/p>\n<p>o\u00a0\u00a0\u00a0 Maximum of 8 injectors permitted<\/p>\n<p>o\u00a0\u00a0\u00a0 Must be mounted externally on intake manifold runners<\/p>\n<p>o\u00a0\u00a0\u00a0 Injector tips may not be modified and diffuser plates may not be added<\/p>\n<p>o\u00a0\u00a0\u00a0 Use of standard Holley supplied extenders only permitted<\/p>\n<p>o\u00a0\u00a0\u00a0 Holley HP Smart Coil-Near-Plug Smart Coil (8 ea.) Holley part number 556-112 mandatory<\/p>\n<ul>\n<li><strong>Fuel Delivery System:<\/strong><\/li>\n<\/ul>\n<p>o\u00a0\u00a0\u00a0 90 psi Max<\/p>\n<p>o\u00a0\u00a0\u00a0 <a href=\"http:\/\/www.summitracing.com\/parts\/ear-jv270204erl\/overview\/\">Earl&#8217;s Performance<\/a> Dry Break Coupler part number JV270204RL mandatory<\/p>\n<p>o\u00a0\u00a0\u00a0 Coupler must be remotely mounted on the fuel line between the fuel pressure regulator and fuel rail<\/p>\n<p>o\u00a0\u00a0\u00a0 Coupler must be easily accessible by NHRA Technical Department<\/p>\n<ul>\n<li><strong>Hoods:<\/strong>\n<ul>\n<li>Must be original OEM design, any variations to the hood must be submitted by the OEM and accepted by NHRA Technical Department prior to running in competition<\/li>\n<li>Maximum hood height from ground will be determined at a later date<\/li>\n<\/ul>\n<\/li>\n<li><strong>Air Intake<\/strong><strong>:<\/strong>\n<ul>\n<li>Must be located below top of front grill<\/li>\n<li>Opening in body (location and dimensions) must be submitted by the OEM and accepted by NHRA Technical Department prior to running in competition<\/li>\n<\/ul>\n<\/li>\n<li><strong>Sensors (mandatory):<\/strong><\/li>\n<\/ul>\n<p>o\u00a0\u00a0\u00a0 Holley Hall Effect Crank Sensor Holley part number 554-118<\/p>\n<p>o\u00a0\u00a0 Holley Hall Effect CAM Sensor Holley part number 554-127<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<div class=\"mh-excerpt\"><p>New requirements for the NHRA Pro Stock&#8217;s transition to EFI have been announced, including the designation of Holley as the provider.<\/p>\n<\/div>","protected":false},"author":17,"featured_media":17472,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[3465,3470,16,3399],"tags":[2,15,2367,3243,7,4801],"class_list":["post-17471","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-drag-racing","category-news","category-pro-stock","category-nhra","tag-drag-racing","tag-holley","tag-holley-efi","tag-new-nhra-requirements","tag-nhra","tag-pro-stock"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2015\/08\/HolleyEFI-NHRAFeature.jpg","jetpack_shortlink":"https:\/\/wp.me\/p42YSK-4xN","jetpack_sharing_enabled":true,"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/www.racingjunk.com\/news\/wp-json\/wp\/v2\/posts\/17471","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.racingjunk.com\/news\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.racingjunk.com\/news\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.racingjunk.com\/news\/wp-json\/wp\/v2\/users\/17"}],"replies":[{"embeddable":true,"href":"https:\/\/www.racingjunk.com\/news\/wp-json\/wp\/v2\/comments?post=17471"}],"version-history":[{"count":2,"href":"https:\/\/www.racingjunk.com\/news\/wp-json\/wp\/v2\/posts\/17471\/revisions"}],"predecessor-version":[{"id":17477,"href":"https:\/\/www.racingjunk.com\/news\/wp-json\/wp\/v2\/posts\/17471\/revisions\/17477"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.racingjunk.com\/news\/wp-json\/wp\/v2\/media\/17472"}],"wp:attachment":[{"href":"https:\/\/www.racingjunk.com\/news\/wp-json\/wp\/v2\/media?parent=17471"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.racingjunk.com\/news\/wp-json\/wp\/v2\/categories?post=17471"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.racingjunk.com\/news\/wp-json\/wp\/v2\/tags?post=17471"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}