{"id":22661,"date":"2022-09-24T10:38:27","date_gmt":"2022-09-24T14:38:27","guid":{"rendered":"https:\/\/discountrcparts.com\/index.php\/product\/lrp-zr-28-spec-4-nitro-engine-w-pull-start-lrp32803\/"},"modified":"2026-03-27T21:18:51","modified_gmt":"2026-03-28T02:18:51","slug":"lrp-zr-28-spec-4-nitro-engine-w-pull-start-lrp32803","status":"publish","type":"product","link":"https:\/\/discountrcparts.com\/index.php\/product\/lrp-zr-28-spec-4-nitro-engine-w-pull-start-lrp32803\/","title":{"rendered":"LRP ZR.28 Spec. 4 Nitro Engine w\/Pull Start LRP32803"},"content":{"rendered":"<p>The LRP\u00a0Nitro Engine ZR.28 Spec. 4 Pull Start features many updates compared to the Spec. 3 nitro engine. The pull start, cooling head and carburetor slide have all been improved to provide more power and durability. While this engine is a .28 it will fit in a .21 engine mount allowing for a wide range of uses. Package includes one nitro engine, one R5 glow plug and one collet.<\/p>\n<p><strong>Features:<\/strong><\/p>\n<ul>\n<li>Big block size<\/li>\n<li>Updated cylinder head<\/li>\n<li>XTEC 15S-2 carburetor<\/li>\n<li>LRP Platinum\/Iridium R5 glow plug included<\/li>\n<li>XTEC T6 engine housing<\/li>\n<li>Ultra strong pull start<\/li>\n<\/ul>\n<p><strong>Specifications:<br \/>\n<\/strong><strong>Class:\u00a0<\/strong>1\/8th Offroad Buggys\/Truggys<br \/>\n<strong>Displacement:\u00a0<\/strong>.28 (4.57cc)<br \/>\n<strong>Bore:\u00a0<\/strong>18.50mm<br \/>\n<strong>Hub:\u00a0<\/strong>17.00mm<br \/>\n<strong>Power:\u00a0<\/strong>3.93 HP<br \/>\n<strong>RPM:\u00a0<\/strong>33,900 RPM<br \/>\n<strong>Ports:\u00a0<\/strong>5 + 1<br \/>\n<strong>Glow Plug:\u00a0<\/strong>LRP Standard R5 (LRP35051)<br \/>\n<strong>Carburetor:\u00a0<\/strong>XTEC PowerCarb3 15S-2 with 9mm Venturi<br \/>\n<strong>Weight:\u00a0<\/strong>420g<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The LRP\u00a0Nitro Engine ZR.28 Spec. 4 Pull Start features many updates compared to the Spec. 3 nitro engine. The pull start, cooling head and carburetor slide have all been improved to provide more power and durability. While this engine is a .28 it will fit in a .21 engine mount allowing for a wide range [&hellip;]<\/p>\n","protected":false},"featured_media":22524,"template":"","meta":[],"product_brand":[],"product_cat":[407],"product_tag":[406],"class_list":{"0":"post-22661","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-lrp","7":"product_tag-nitro-engine","8":"product_shipping_class-free","10":"first","11":"outofstock","12":"taxable","13":"shipping-taxable","14":"purchasable","15":"product-type-simple"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>LRP ZR.28 Spec. 4 Nitro Engine w\/Pull Start LRP32803 - Discount RC Parts<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/discountrcparts.com\/index.php\/product\/lrp-zr-28-spec-4-nitro-engine-w-pull-start-lrp32803\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"LRP ZR.28 Spec. 4 Nitro Engine w\/Pull Start LRP32803 - Discount RC Parts\" \/>\n<meta property=\"og:description\" content=\"The LRP\u00a0Nitro Engine ZR.28 Spec. 4 Pull Start features many updates compared to the Spec. 3 nitro engine. 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