{"product_id":"306563-atomic-barra-street-chain-tensioner","title":"306563- Atomic Barra Street Chain Tensioner","description":"\r\n\t\t\r\n\t\t\r\n\t\t\u003cstyle type=\"text\/css\"\u003e.csC697EEB{23pt;font-weight:normal;color:#232323;font-style:normal;Arial;} .cs94E766B{14pt;font-weight:bold;color:#232323;font-style:normal;Arial;} .cs39940DB{46pt;font-weight:normal;color:#E4622B;font-style:normal;Arial;} .cs79DB84B{14pt;font-weight:normal;color:#232323;font-style:italic;Arial;} .csA5E8B8B{18pt;font-weight:normal;color:#232323;font-style:normal;Arial;} .cs117FDC4{border-bottom:1pt #EBEBEB solid;border-top:1pt #EBEBEB solid;border-left:1pt #EBEBEB solid;padding:7.5pt 10.5pt 7.5pt 10.5pt;border-right:1pt #EBEBEB solid} .csBAC001B{27pt;font-weight:bold;color:#0A0A0A;font-style:normal;Arial;text-transform:uppercase;} .csA5E80CB{14pt;font-weight:normal;color:#232323;font-style:normal;Arial;} .csC697B9B{14pt;font-weight:normal;color:#232323;font-style:normal;Arial;} .csFEA1ADB{14pt;font-weight:bold;color:#000000;font-style:normal;Arial;text-transform:uppercase;} .csF7E766B{13pt;font-weight:bold;color:#232323;font-style:normal;Arial;} .cs1E1C9DB{14pt;Arial;color:#232323;text-decoration: underline;font-style:normal;font-weight:normal;} .csBE25054{margin:0pt 0pt 15pt 0pt;text-align:left;text-indent:0pt} .csFC9B19C{14pt;font-weight:normal;color:#232323;font-style:normal;margin:0pt 0pt 0pt 26pt;text-align:left;line-height:1.15;list-style-type:disc;Arial} .csFF9850B{30pt;font-weight:normal;color:#333333;font-style:normal;Arial;} .cs3270F94{margin:0pt 0pt 0pt 0pt;text-align:left;text-indent:0pt} .csA5E870B{30pt;font-weight:normal;color:#232323;font-style:normal;Arial;} .cs9F2FDB4{border-bottom:1pt #EBEBEB solid;padding:7.5pt 10.5pt 7.5pt 10.5pt;width:252.95pt;border-top:1pt #EBEBEB solid;border-left:1pt #EBEBEB solid;border-right:1pt #EBEBEB solid} .csB52D36B{18pt;font-weight:normal;color:#232323;font-style:normal;SEGOE UI EMOJI;} .csCED8894{margin:0pt 0pt 0pt 0pt;text-align:center;text-indent:0pt} .cs95B300B{11pt;font-weight:normal;color:#000000;font-style:normal;Calibri;} .cs5EFC95B{18pt;font-weight:normal;color:#232323;font-style:normal;SEGOE UI SYMBOL;} .csE5E8ADB{23pt;font-weight:normal;color:#E4522B;font-style:normal;Arial;} .cs8B9857B{14pt;font-weight:bold;color:#232323;font-style:normal;Arial;} .cs94A4054{margin:0pt 0pt 15pt 0pt;text-align:center;text-indent:0pt} .cs3388614{text-align:left;margin:0pt 0pt 10pt 0pt;line-height:1.15;text-indent:0pt} .csE41F62B{14pt;font-weight:bold;color:#232323;font-style:normal;Arial;} .csECD52B{23pt;font-weight:normal;color:#E4522B;font-style:normal;Arial;} .csB0E75DB{30pt;font-weight:normal;color:#333333;font-style:normal;Arial;} .csFC9B10C{14pt;font-weight:normal;color:#232323;font-style:normal;margin:0pt 0pt 3pt 26pt;text-align:left;line-height:1.15;list-style-type:disc;Arial} .cs44E65FB{23pt;font-weight:normal;color:#E4522B;font-style:normal;Arial;text-transform:uppercase;} .csFC269B{14pt;font-weight:normal;color:#232323;font-style:normal;Arial;} .cs{}\u003c\/style\u003e\r\n\t\r\n\t\u003cp class=\"cs3270F94\"\u003e\u003cspan class=\"csBAC001B\"\u003eAtomic Barra Street Chain Tensioner\u003c\/span\u003e\u003c\/p\u003e\u003ch1 class=\"cs3270F94\"\u003e\r\n\t\t\t\u003cspan class=\"cs39940DB\"\u003eAtomic Barra Street Chain Tensioner\u003c\/span\u003e\n\u003c\/h1\u003e\r\n\t\t\u003cp class=\"cs3270F94\"\u003e\u003cspan class=\"csA5E80CB\"\u003eOEM+ Replacement | Billet Steel Construction\u003c\/span\u003e\u003c\/p\u003e\u003ch3 class=\"csCED8894\"\u003e\r\n\t\t\t\u003cspan class=\"cs5EFC95B\"\u003eâš \u003c\/span\u003e\u003cspan class=\"csB52D36B\"\u003e️\u003c\/span\u003e\u003cspan class=\"csA5E8B8B\"\u003e CRITICAL WARNINGS\u003c\/span\u003e\n\u003c\/h3\u003e\r\n\t\t\u003cp class=\"cs94A4054\"\u003e\u003cspan class=\"csF7E766B\"\u003eDO NOT ADD CLICKS TO THE RATCHET. DO NOT FORCE OUT THE PISTON OR LEVER THE GUIDE. INSTALL THE TENSIONER AND PULL THE 'GRENADE PIN' ONLY.\u003c\/span\u003e\u003c\/p\u003e\u003cp class=\"csCED8894\"\u003e\u003cspan class=\"csA5E80CB\"\u003eModification of any part of the tensioner voids the warranty. Removal of the check valve system or any other component (other than the retention pin which is removed during install) will void warranty. \u003c\/span\u003e\u003c\/p\u003e\u003ch2 class=\"cs3270F94\"\u003e\r\n\t\t\t\u003cspan class=\"csA5E870B\"\u003eA Durable OEM+ Solution\u003c\/span\u003e\n\u003c\/h2\u003e\r\n\t\t\u003cp class=\"csBE25054\"\u003e\u003cspan class=\"csA5E80CB\"\u003eThe Atomic Barra Street Chain Tensioner is designed as a drop-in OEM+ replacement to offer a \u003c\/span\u003e\u003cspan class=\"cs94E766B\"\u003esignificantly more durable and refined solution\u003c\/span\u003e\u003cspan class=\"csA5E80CB\"\u003e for factory and performance street applications. \u003c\/span\u003e\u003cspan class=\"cs94E766B\"\u003eMachined in Sydney\u003c\/span\u003e\u003cspan class=\"csA5E80CB\"\u003e from Billet Steel, it improves upon the factory design's kinematics, damping, and material strength all of which improve load bearing ability and therefore durability.\u003c\/span\u003e\u003c\/p\u003e\u003cp class=\"csBE25054\"\u003e\u003cspan class=\"csA5E80CB\"\u003eWhile we have heavily improved how the tensioner regulates chain tension and dampens harmonics, it is designed to operate optimally up to \u003c\/span\u003e\u003cspan class=\"cs94E766B\"\u003e85psi of oil pressure\u003c\/span\u003e\u003cspan class=\"csA5E80CB\"\u003e. You \u003c\/span\u003e\u003cspan class=\"cs79DB84B\"\u003ecan\u003c\/span\u003e\u003cspan class=\"csA5E80CB\"\u003e run more oil pressure than that, but doing so will subject you to the same limitations as the factory tensioner: over-tensioning the chain. The more oil pressure you have, the more tension you put on the chain. \u003c\/span\u003e\u003cspan class=\"cs94E766B\"\u003eOver-tensioning can cause the timing chain or chain guide to snap due to excessive force\u003c\/span\u003e\u003cspan class=\"csA5E80CB\"\u003e. The total load capacity of the timing system is reduced as you introduce more spring pressure, aggressive cam profiles, increase RPM and introduce other shocks like harsh limiters or poor harmonic damping.\u003c\/span\u003e\u003c\/p\u003e\u003cp class=\"csBE25054\"\u003e\u003cspan class=\"cs1E1C9DB\"\u003eAt 85psi, we are confident this tensioner will not have the same reliability issues as factory units.\u003c\/span\u003e\u003cspan class=\"csA5E80CB\"\u003e Our comprehensive testing program included such tests as revving to 6000rpm and hold on a harsh rev limiter instantly from a dead cold start. We've tried. Multiple times. \u003c\/span\u003e\u003c\/p\u003e\u003ch2 class=\"cs3270F94\"\u003e\r\n\t\t\t\u003cspan class=\"csA5E870B\"\u003eKey Capabilities\u003c\/span\u003e\n\u003c\/h2\u003e\r\n\t\t\u003cul start=\"1\" style=\"margin-bottom:0;margin-top:0;\"\u003e\r\n\t\t\t\u003cli class=\"csFC9B10C\"\u003e\n\u003cspan class=\"cs94E766B\"\u003eApplication:\u003c\/span\u003e\u003cspan class=\"csA5E80CB\"\u003e Factory replacement, performance street builds. Compatible with all factory parts.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"csFC9B10C\"\u003e\n\u003cspan class=\"cs94E766B\"\u003eOil Pressure Limits:\u003c\/span\u003e\u003cspan class=\"csA5E80CB\"\u003e Recommended Max 85psi.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\r\n\t\t\u003cp class=\"cs3270F94\"\u003e\u003cspan class=\"cs94E766B\"\u003eDeck Height Limits:\u003c\/span\u003e\u003cspan class=\"csA5E80CB\"\u003e Tolerates +\/- 1mm deck height variations.\u003c\/span\u003e\u003c\/p\u003e\u003ch2 class=\"csCED8894\"\u003e\r\n\t\t\t\u003cspan class=\"csFF9850B\"\u003eEngineering Enhancements\u003c\/span\u003e\n\u003c\/h2\u003e\r\n\t\t\u003ch3 class=\"cs3270F94\"\u003e\r\n\t\t\t\u003cspan class=\"csC697EEB\"\u003eMaterial \u0026amp; Alignment\u003c\/span\u003e\n\u003c\/h3\u003e\r\n\t\t\u003cul start=\"1\" style=\"margin-bottom:0;margin-top:0;\"\u003e\r\n\t\t\t\u003cli class=\"csFC9B10C\"\u003e\n\u003cspan class=\"cs8B9857B\"\u003eBillet Construction:\u003c\/span\u003e\u003cspan class=\"csC697B9B\"\u003e Billet steel body, piston, and EN steel ratchet for vastly improved tolerances, finish and strength.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"csFC9B10C\"\u003e\n\u003cspan class=\"cs8B9857B\"\u003eRevised Geometry:\u003c\/span\u003e\u003cspan class=\"csC697B9B\"\u003e Improved kinematics and orientation for lower noise, vibration and harshness.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"csFC9B19C\"\u003e\n\u003cspan class=\"cs8B9857B\"\u003eEnlarged Piston:\u003c\/span\u003e\u003cspan class=\"csC697B9B\"\u003e Increased size improves contact surface and tooth size, reducing tensioner tooth wear through better engagement.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\r\n\t\t\u003ch3 class=\"cs3270F94\"\u003e\r\n\t\t\t\u003cspan class=\"csE5E8ADB\"\u003eDamping \u0026amp; Hydraulics\u003c\/span\u003e\n\u003c\/h3\u003e\r\n\t\t\u003cul start=\"1\" style=\"margin-bottom:0;margin-top:0;\"\u003e\r\n\t\t\t\u003cli class=\"csFC9B10C\"\u003e\n\u003cspan class=\"cs8B9857B\"\u003eICV \u0026amp; TFD:\u003c\/span\u003e\u003cspan class=\"csC697B9B\"\u003e Integrated Check Valve \u0026amp; Tuned Flow Damping circuits to enhance absorption of chain whip.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"csFC9B10C\"\u003e\n\u003cspan class=\"cs8B9857B\"\u003eCold Start Flow:\u003c\/span\u003e\u003cspan class=\"csC697B9B\"\u003e Improved air bleeding speeds up damping function, especially critical on cold starts.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"csFC9B10C\"\u003e\n\u003cspan class=\"cs8B9857B\"\u003eMain Spring:\u003c\/span\u003e\u003cspan class=\"csC697B9B\"\u003e Increased stiffness aids cold starts on modified engines.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"csFC9B19C\"\u003e\n\u003cspan class=\"cs8B9857B\"\u003eGuaranteed ICV sealing\u003c\/span\u003e\u003cspan class=\"csC697B9B\"\u003e: Every unit is machine tested before being packaged to guarantee perfect check valve function  \u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\r\n\t\t\u003ch3 class=\"cs3270F94\"\u003e\r\n\t\t\t\u003cspan class=\"csC697EEB\"\u003eFailsafes \u0026amp; Protection\u003c\/span\u003e\n\u003c\/h3\u003e\r\n\t\t\u003cul start=\"1\" style=\"margin-bottom:0;margin-top:0;\"\u003e\r\n\t\t\t\u003cli class=\"csFC9B10C\"\u003e\n\u003cspan class=\"cs8B9857B\"\u003eSingle Tooth Ratchet:\u003c\/span\u003e\u003cspan class=\"csC697B9B\"\u003e Significant improvement to ratchet tooth design using a single, deeper 90° engagement tooth. Not only does this increase the load-handling ability of the tensioner, but we have also slightly increased the tooth spacing\/damping window. This reduces the harshness introduced when the ratchet lock takes the force, allowing hydraulic damping to properly dissipate the energy BEFORE it smashes into the locker.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"csFC9B10C\"\u003e\n\u003cspan class=\"cs8B9857B\"\u003eReduced Tooth Count:\u003c\/span\u003e\u003cspan class=\"csC697B9B\"\u003e Reduces 'over-ratchet' which over-extends the piston and forces the guide to absorb chain harmonics.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"csFC9B10C\"\u003e\n\u003cspan class=\"cs8B9857B\"\u003eMechanical Backstop:\u003c\/span\u003e\u003cspan class=\"csC697B9B\"\u003e The body acts as a backstop in the event of ratchet or oil supply loss.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"csFC9B19C\"\u003e\n\u003cspan class=\"cs8B9857B\"\u003eOver-extension Protection:\u003c\/span\u003e\u003cspan class=\"csC697B9B\"\u003e Added to avoid piston pump-up and guide\/chain snaps.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\r\n\t\t\u003cp class=\"cs3270F94\"\u003e\u003cspan class=\"csB0E75DB\"\u003eFactory vs. Atomic Tooth Design\u003c\/span\u003e\u003c\/p\u003e\u003ch3 class=\"cs3270F94\"\u003e\r\n\t\t\t\u003cspan class=\"cs44E65FB\"\u003eechnical Specifications\u003c\/span\u003e\n\u003c\/h3\u003e\r\n\t\t\u003ctable class=\"cs\" cellspacing=\"0\" border=\"0\" cellpadding=\"0\" width=\"844\" style=\"border-collapse:collapse;\"\u003e\r\n\t\t\t\u003ctr\u003e\r\n\t\t\t\t\u003ctd class=\"cs9F2FDB4\" width=\"338\"\u003e\u003cp class=\"cs3270F94\"\u003e\u003cspan class=\"csFC269B\"\u003eComponent\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd class=\"cs117FDC4\"\u003e\u003cp class=\"cs3270F94\"\u003e\u003cspan class=\"csFC269B\"\u003eSpecification\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\r\n\t\t\t\u003ctr\u003e\r\n\t\t\t\t\u003ctd class=\"cs117FDC4\"\u003e\u003cp class=\"cs3270F94\"\u003e\u003cspan class=\"csE41F62B\"\u003eBody\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd class=\"cs117FDC4\"\u003e\u003cp class=\"cs3270F94\"\u003e\u003cspan class=\"csFC269B\"\u003eCNC Billet Steel\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\r\n\t\t\t\u003ctr\u003e\r\n\t\t\t\t\u003ctd class=\"cs117FDC4\"\u003e\u003cp class=\"cs3270F94\"\u003e\u003cspan class=\"csE41F62B\"\u003ePiston\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd class=\"cs117FDC4\"\u003e\u003cp class=\"cs3270F94\"\u003e\u003cspan class=\"csFC269B\"\u003eCNC Billet Steel\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\r\n\t\t\t\u003ctr\u003e\r\n\t\t\t\t\u003ctd class=\"cs117FDC4\"\u003e\u003cp class=\"cs3270F94\"\u003e\u003cspan class=\"csE41F62B\"\u003eRatchet\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd class=\"cs117FDC4\"\u003e\u003cp class=\"cs3270F94\"\u003e\u003cspan class=\"csFC269B\"\u003eCNC Billet EN Steel\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\r\n\t\t\t\u003ctr\u003e\r\n\t\t\t\t\u003ctd class=\"cs117FDC4\"\u003e\u003cp class=\"cs3270F94\"\u003e\u003cspan class=\"csE41F62B\"\u003eDamping Tech\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd class=\"cs117FDC4\"\u003e\u003cp class=\"cs3270F94\"\u003e\u003cspan class=\"csFC269B\"\u003eICV (Integrated Check Valve), TFD (Tuned Flow Damping)\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\r\n\t\t\t\u003ctr\u003e\r\n\t\t\t\t\u003ctd class=\"cs117FDC4\"\u003e\u003cp class=\"cs3270F94\"\u003e\u003cspan class=\"csE41F62B\"\u003eTarget Oil Pressure\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd class=\"cs117FDC4\"\u003e\u003cp class=\"cs3270F94\"\u003e\u003cspan class=\"csFC269B\"\u003eMax 85psi\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\r\n\t\t\t\u003ctr\u003e\r\n\t\t\t\t\u003ctd class=\"cs117FDC4\"\u003e\u003cp class=\"cs3270F94\"\u003e\u003cspan class=\"csE41F62B\"\u003eRecommended Guide\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd class=\"cs117FDC4\"\u003e\u003cp class=\"cs3270F94\"\u003e\u003cspan class=\"csFC269B\"\u003eAtomic Billet Street Chain Guide\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\r\n\t\t\u003c\/table\u003e\r\n\t\t\u003ch3 class=\"cs3270F94\"\u003e\r\n\t\t\t\u003cspan class=\"csECD52B\"\u003e🔧 Installation Advice\u003c\/span\u003e\n\u003c\/h3\u003e\r\n\t\t\u003cul start=\"1\" style=\"margin-bottom:0;margin-top:0;\"\u003e\r\n\t\t\t\u003cli class=\"csFC9B10C\"\u003e\n\u003cspan class=\"csE41F62B\"\u003eLoctite\u003c\/span\u003e\u003cspan class=\"csFC269B\"\u003e all mounting bolts.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"csFC9B10C\"\u003e\n\u003cspan class=\"csE41F62B\"\u003ePrime oil system\u003c\/span\u003e\u003cspan class=\"csFC269B\"\u003e by cranking prior to start to fill the head and tensioner with oil.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"csFC9B10C\"\u003e\n\u003cspan class=\"csE41F62B\"\u003eNormal Operation:\u003c\/span\u003e\u003cspan class=\"csFC269B\"\u003e The tensioner may make a buzzing noise for several seconds after first start as air bleeds out of the system. This usually only repeats if the engine is not started for extended periods. \u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"csFC9B10C\"\u003e\n\u003cspan class=\"csE41F62B\"\u003eDO NOT\u003c\/span\u003e\u003cspan class=\"csFC269B\"\u003e attempt to add more tension to the guide manually\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\r\n\t\t\u003cp class=\"cs3270F94\"\u003e\u003cspan class=\"csE41F62B\"\u003eRotate engine by hand\u003c\/span\u003e\u003cspan class=\"csFC269B\"\u003e before sealing up. Tensioner may extend one click so please note tensioner movement and resting position. We recommend taking a photo for future reference. This will also help with troubleshooting or warranty claims if difficulties arise.\u003c\/span\u003e\u003c\/p\u003e\u003cp class=\"cs3270F94\"\u003e\u003cspan class=\"csFEA1ADB\"\u003e306563\u003c\/span\u003e\u003c\/p\u003e\u003cp class=\"cs3388614\"\u003e\u003cspan class=\"cs95B300B\"\u003e \u003c\/span\u003e\u003c\/p\u003e","brand":"ATOMIC","offers":[{"title":"Default Title","offer_id":44253390209085,"sku":"20060077","price":304.99,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0562\/9224\/5565\/files\/20060077_1.png?v=1793594832","url":"https:\/\/performancepartsplus.com.au\/products\/306563-atomic-barra-street-chain-tensioner","provider":"Performance Parts Plus","version":"1.0","type":"link"}