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<\/p>\n<\/p>\n
It sure looks like Vance & Hines, together with Monster Heads did too good a job with their new Suzuki four-valve engines encased in Hayabusa bodies. NHRA is clamping down on the Pro Stock Motorcycle class – again – because tenacious developers and builders are doing such a good job as to make the two-valve Suzuki engines and S and S Buell\/EBR engines irrelevant during the 2023 NHRA Camping World Drag Racing Series.<\/p>\n
There have only been two races in this class held to date. Pro Stock Motorcycle\u2019s third race of the year takes place in two weeks at Route 66 Raceway in Joliet, IL. a suburb of Chicago. Gaige Herrera, who joined Vance & Hines this year after a half-season that started at last year\u2019s U.S. Nationals, has won at both the season starter in Gainesville and at last week\u2019s 4Wide contest in Charlotte.<\/p>\n
Still, NHRA wants to see more parity in the class and has made weight changes to both the Buell and Suzuki engines – both the latter\u2019s two- and four-valve entities.<\/p>\n The changes begin with NHRA-accepted S and S engines. There are two iterations of these engines, a Gen 1 and Gen 2. Their sizes range to a maximum of 160 cid; both have a 60-degree angle, are two-valve pushrod mills and, henceforth, both of them will hit the water box weighing an unchanged 635 pounds.<\/p>\n On the Suzuki side, again with all engines meeting NHRA stipulations, the maximum 113cid 2-valve Suzuki lost 20 pounds and has gone from a minimum weight of 590 pounds to 570 pounds. On the four-valve side, there are different weight penalties for the Vance & Hines vs Monster heads. The V&H four-valve engine must weigh a minimum of 635 pounds, a net gain of 10 pounds, while the Monster head-employed Suzuki four-valve gains only five pounds, from 625 to 630 pounds.<\/p>\n These changes were made, NHRA said, strictly to control performance and maintain parity in the category. The question is whether the superb tuners whose job it is to make sure their motorcycle beats anyone else\u2019s will find a way to offset these changes at the upcoming race in Joliet, or whether they\u2019ll have issues on their hands.<\/p>\n One thing NHRA didn\u2019t address in this class is runaway bikes, like Marcus Hylton\u2019s Round 1 trip to the Charlotte sandbox on his Buell motorcycle. And no, putting chutes on these motorcycles isn\u2019t the best idea. Nearly every rider and team uses the best brakes available so they don\u2019t end up in the sandbox and Hylton\u2019s issues in Charlotte shouldn\u2019t be the impetus for yet another rules change.<\/p>\n","protected":false},"excerpt":{"rendered":" It sure looks like Vance & Hines, together with Monster Heads, did too good a job with their new Suzuki four-valve engines encased in Hayabusa bodies<\/p>\n<\/div>","protected":false},"author":65,"featured_media":90860,"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":[3465,3470,5029,3399],"tags":[9524,9693,8055,74,5759],"class_list":["post-90856","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-drag-racing","category-news","category-racing","category-nhra","tag-gaige-herrera","tag-monster-heads","tag-nhra-camping-world-drag-racing-series","tag-pro-stock-motorcycle","tag-vance-hines"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2023\/05\/NHRA-Camping-World-logo-min-e1683328129825.jpg","jetpack_shortlink":"https:\/\/wp.me\/p42YSK-nDq","jetpack_sharing_enabled":true,"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/www.racingjunk.com\/news\/wp-json\/wp\/v2\/posts\/90856","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\/65"}],"replies":[{"embeddable":true,"href":"https:\/\/www.racingjunk.com\/news\/wp-json\/wp\/v2\/comments?post=90856"}],"version-history":[{"count":5,"href":"https:\/\/www.racingjunk.com\/news\/wp-json\/wp\/v2\/posts\/90856\/revisions"}],"predecessor-version":[{"id":90873,"href":"https:\/\/www.racingjunk.com\/news\/wp-json\/wp\/v2\/posts\/90856\/revisions\/90873"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.racingjunk.com\/news\/wp-json\/wp\/v2\/media\/90860"}],"wp:attachment":[{"href":"https:\/\/www.racingjunk.com\/news\/wp-json\/wp\/v2\/media?parent=90856"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.racingjunk.com\/news\/wp-json\/wp\/v2\/categories?post=90856"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.racingjunk.com\/news\/wp-json\/wp\/v2\/tags?post=90856"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}![\"\"](\"https:\/\/www.racingjunk.com\/news\/wp-content\/uploads\/2023\/05\/Marc-Ingwersen-and-Ryan-Oehlers-Buells-min.jpg\")
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