{"product_id":"turbosmart-compgate40-40mm-external-wastegate-genv","title":"WG40 CompGate40 GenV 40mm External Wastegate by Turbosmart","description":"\u003cp\u003e \u003c\/p\u003e\n\u003ch1 data-end=\"872\" data-start=\"820\" data-section-id=\"fitn8j\"\u003eTurbosmart CompGate40 GenV 40mm External Wastegate\u003c\/h1\u003e\n\u003cp data-end=\"1042\" data-start=\"874\"\u003eIf you're searching for a \u003cstrong data-end=\"918\" data-start=\"900\"\u003e40mm wastegate\u003c\/strong\u003e, a \u003cstrong data-end=\"936\" data-start=\"922\"\u003eCompGate40\u003c\/strong\u003e, or a compact external wastegate for a responsive turbo build — this is where smart boost control starts.\u003c\/p\u003e\n\u003cp data-end=\"1231\" data-start=\"1044\"\u003eThe Turbosmart CompGate40 GenV is a compact 40mm external wastegate designed for smaller turbochargers and tighter engine bays, delivering reliable boost control without unnecessary bulk.\u003c\/p\u003e\n\u003cp data-end=\"1417\" data-start=\"1233\"\u003eAt Walton Motorsport, the 40mm is often specified for fast spool street builds, smaller frame turbochargers and applications where packaging space is limited but control still matters.\u003c\/p\u003e\n\u003ch3 data-end=\"1463\" data-start=\"1424\" data-section-id=\"vzh7ix\"\u003eWhy Choose a 40mm External Wastegate?\u003c\/h3\u003e\n\u003cp data-end=\"1496\" data-start=\"1465\"\u003eA 40mm wastegate is ideal when:\u003c\/p\u003e\n\u003cp data-end=\"1679\" data-start=\"1498\"\u003e• Turbocharger size is small to medium\u003cbr data-end=\"1539\" data-start=\"1536\"\u003e• Engine bay space is tight\u003cbr data-end=\"1569\" data-start=\"1566\"\u003e• Quick response is prioritised\u003cbr data-end=\"1603\" data-start=\"1600\"\u003e• Moderate power targets are planned\u003cbr data-end=\"1642\" data-start=\"1639\"\u003e• A compact manifold design is used\u003c\/p\u003e\n\u003cp data-end=\"1814\" data-start=\"1681\"\u003eIt offers excellent control authority for appropriately sized turbo systems without the footprint of larger 45mm, 50mm or 60mm units.\u003c\/p\u003e\n\u003cp data-end=\"1926\" data-start=\"1816\"\u003eCorrect sizing is about matching bypass flow to turbo flow — not simply choosing the biggest option available.\u003c\/p\u003e\n\u003ch3 data-end=\"1953\" data-start=\"1933\" data-section-id=\"h8qpym\"\u003eThe GenV Advantage\u003c\/h3\u003e\n\u003cp data-end=\"2027\" data-start=\"1955\"\u003eThe GenV CompGate40 is a complete redesign over the previous generation.\u003c\/p\u003e\n\u003cp data-end=\"2132\" data-start=\"2029\"\u003eThe only feature retained from Gen4 is the mounting orientation, allowing direct upgrade compatibility.\u003c\/p\u003e\n\u003cp data-end=\"2220\" data-start=\"2134\"\u003eEverything else was engineered using CFD modelling and in-house flow bench validation.\u003c\/p\u003e\n\u003ch2 data-end=\"2242\" data-start=\"2227\" data-section-id=\"1ma7m6t\"\u003eKey Features\u003c\/h2\u003e\n\u003cp data-end=\"2580\" data-start=\"2244\"\u003e• Class-leading thermal performance\u003cbr data-end=\"2282\" data-start=\"2279\"\u003e• CFD-optimised and bench validated flow path\u003cbr data-end=\"2330\" data-start=\"2327\"\u003e• Nitronic 60 valve guide\u003cbr data-end=\"2358\" data-start=\"2355\"\u003e• High-temperature 347 stainless steel body\u003cbr data-end=\"2404\" data-start=\"2401\"\u003e• 17-7 PH stainless steel springs\u003cbr data-end=\"2440\" data-start=\"2437\"\u003e• Modular actuator housing with 360° rotation\u003cbr data-end=\"2488\" data-start=\"2485\"\u003e• Optional liquid cooling ports\u003cbr data-end=\"2522\" data-start=\"2519\"\u003e• Strap-type V-band clamps\u003cbr data-end=\"2551\" data-start=\"2548\"\u003e• Collar-locking cap system\u003c\/p\u003e\n\u003cp data-end=\"2695\" data-start=\"2582\"\u003eThe result is improved durability, reduced heat transfer and more consistent boost control under real-world load.\u003c\/p\u003e\n\u003ch3 data-end=\"2736\" data-start=\"2702\" data-section-id=\"xr76gy\"\u003eCompact Doesn’t Mean Compromised\u003c\/h3\u003e\n\u003cp data-end=\"2776\" data-start=\"2738\"\u003eA properly sized 40mm wastegate helps:\u003c\/p\u003e\n\u003cp data-end=\"2987\" data-start=\"2778\"\u003e• Prevent boost creep on small turbine housings\u003cbr data-end=\"2828\" data-start=\"2825\"\u003e• Maintain stable base boost levels\u003cbr data-end=\"2866\" data-start=\"2863\"\u003e• Improve turbo response\u003cbr data-end=\"2893\" data-start=\"2890\"\u003e• Deliver predictable torque management\u003cbr data-end=\"2935\" data-start=\"2932\"\u003e• Support reliable daily-driven performance builds\u003c\/p\u003e\n\u003cp data-end=\"3069\" data-start=\"2989\"\u003eEspecially in tight installations where larger gates would complicate packaging.\u003c\/p\u003e\n\u003ch3 data-end=\"3112\" data-start=\"3076\" data-section-id=\"1f0yb6i\"\u003eDirect Upgrade for Gen4 CompGate40\u003c\/h3\u003e\n\u003cp data-end=\"3194\" data-start=\"3114\"\u003eThe inlet and outlet mounting orientation remains unchanged from Gen4, allowing:\u003c\/p\u003e\n\u003cp data-end=\"3301\" data-start=\"3196\"\u003e• Simple replacement upgrades\u003cbr data-end=\"3228\" data-start=\"3225\"\u003e• Compatibility with existing manifolds\u003cbr data-end=\"3270\" data-start=\"3267\"\u003e• No flange redesign required\u003c\/p\u003e\n\u003cp data-end=\"3336\" data-start=\"3303\"\u003eModern internals. Proven fitment.\u003c\/p\u003e\n\u003ch3 data-end=\"3371\" data-start=\"3343\" data-section-id=\"13xiwd1\"\u003eWhat’s Included in the Box\u003c\/h3\u003e\n\u003cp data-end=\"3620\" data-start=\"3373\"\u003e• GenV CompGate40 Wastegate\u003cbr data-end=\"3403\" data-start=\"3400\"\u003e• Full spring kit (3, 5, 7, 14 psi)\u003cbr data-end=\"3441\" data-start=\"3438\"\u003e• One spring pre-installed\u003cbr data-end=\"3470\" data-start=\"3467\"\u003e• SS316 valve seat\u003cbr data-end=\"3491\" data-start=\"3488\"\u003e• V-band clamps\u003cbr data-end=\"3509\" data-start=\"3506\"\u003e• Inlet and outlet weld flanges\u003cbr data-end=\"3543\" data-start=\"3540\"\u003e• Collar locking tool\u003cbr data-end=\"3567\" data-start=\"3564\"\u003e• 1\/8” NPT plugs and fittings\u003cbr data-end=\"3599\" data-start=\"3596\"\u003e• Mounting hardware\u003c\/p\u003e\n\u003cp data-end=\"3671\" data-start=\"3622\"\u003eEverything required for installation is included.\u003c\/p\u003e\n\u003ch3 data-end=\"3671\" data-start=\"3622\"\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch3 data-end=\"3759\" data-start=\"3713\" data-section-id=\"h074zd\"\u003eDo I need to use the liquid cooling ports?\u003c\/h3\u003e\n\u003cp data-end=\"3764\" data-start=\"3761\"\u003eNo.\u003c\/p\u003e\n\u003cp data-end=\"3878\" data-start=\"3766\"\u003eLiquid cooling is optional and generally only required for extreme endurance or restricted airflow environments.\u003c\/p\u003e\n\u003cp data-end=\"3910\" data-start=\"3880\"\u003eThe GenV already incorporates:\u003c\/p\u003e\n\u003cp data-end=\"4026\" data-start=\"3912\"\u003e• CFD-optimised thermal management\u003cbr data-end=\"3949\" data-start=\"3946\"\u003e• Thermal isolating ceramic spacers\u003cbr data-end=\"3987\" data-start=\"3984\"\u003e• A highly thermally stable diaphragm\u003c\/p\u003e\n\u003cp data-end=\"4098\" data-start=\"4028\"\u003eFor most street and performance builds, liquid cooling is unnecessary.\u003c\/p\u003e\n\u003chr data-end=\"4103\" data-start=\"4100\"\u003e\n\u003ch3 data-end=\"4145\" data-start=\"4105\" data-section-id=\"ru32m4\"\u003eCan the actuator housing be rotated?\u003c\/h3\u003e\n\u003cp data-end=\"4151\" data-start=\"4147\"\u003eYes.\u003c\/p\u003e\n\u003cp data-end=\"4208\" data-start=\"4153\"\u003eThe GenV CompGate40 allows full 360° actuator rotation.\u003c\/p\u003e\n\u003cp data-end=\"4344\" data-start=\"4210\"\u003eThis provides flexibility when routing boost reference hoses and helps avoid running lines near turbo manifolds or other heat sources.\u003c\/p\u003e\n\u003cp data-end=\"4406\" data-start=\"4346\"\u003eIt also improves installation neatness in tight engine bays.\u003c\/p\u003e\n\u003chr data-end=\"4411\" data-start=\"4408\"\u003e\n\u003ch3 data-end=\"4464\" data-start=\"4413\" data-section-id=\"45dql1\"\u003eWill the GenV CompGate40 fit where my Gen4 did?\u003c\/h3\u003e\n\u003cp data-end=\"4470\" data-start=\"4466\"\u003eYes.\u003c\/p\u003e\n\u003cp data-end=\"4573\" data-start=\"4472\"\u003eThe inlet and outlet mounting orientation remains identical to Gen4 for direct upgrade compatibility.\u003c\/p\u003e\n\u003chr data-end=\"4578\" data-start=\"4575\"\u003e\n\u003ch3 data-end=\"4614\" data-start=\"4580\" data-section-id=\"1fdyppz\"\u003eHow do I change the spring(s)?\u003c\/h3\u003e\n\u003cp data-end=\"4658\" data-start=\"4616\"\u003eThe GenV uses a collar-locking cap system.\u003c\/p\u003e\n\u003cp data-end=\"4772\" data-start=\"4660\"\u003eYou must use the supplied collar tool and apply downward pressure to the cap before removing the locking collar.\u003c\/p\u003e\n\u003cp data-end=\"4842\" data-start=\"4774\"\u003eThis design improves vibration resistance and long-term reliability.\u003c\/p\u003e\n\u003cp data-end=\"4894\" data-start=\"4844\"\u003eAlways follow installation instructions carefully.\u003c\/p\u003e\n\u003chr data-end=\"4899\" data-start=\"4896\"\u003e\n\u003ch3 data-end=\"4945\" data-start=\"4901\" data-section-id=\"12liet9\"\u003eWhat size are the boost reference ports?\u003c\/h3\u003e\n\u003cp data-end=\"5014\" data-start=\"4947\"\u003eAll boost reference and optional liquid cooling ports are 1\/8” NPT.\u003c\/p\u003e\n\u003cp data-end=\"5110\" data-start=\"5016\"\u003eStainless hose tail barbs are included, and -3AN or -4AN motorsport fittings can also be used.\u003c\/p\u003e\n\u003chr data-end=\"5115\" data-start=\"5112\"\u003e\n\u003ch1 data-end=\"5150\" data-start=\"5117\" data-section-id=\"1dhvdrr\"\u003eIs a 40mm Wastegate Big Enough?\u003c\/h1\u003e\n\u003cp data-end=\"5192\" data-start=\"5152\"\u003eFor many responsive street builds — yes.\u003c\/p\u003e\n\u003cp data-end=\"5243\" data-start=\"5194\"\u003eA 40mm external wastegate is typically ideal for:\u003c\/p\u003e\n\u003cp data-end=\"5380\" data-start=\"5245\"\u003e• Small to medium turbochargers\u003cbr data-end=\"5279\" data-start=\"5276\"\u003e• 300–600hp applications (system dependent)\u003cbr data-end=\"5325\" data-start=\"5322\"\u003e• Fast spool setups\u003cbr data-end=\"5347\" data-start=\"5344\"\u003e• Tight packaging installations\u003c\/p\u003e\n\u003cp data-end=\"5493\" data-start=\"5382\"\u003eIf you’re unsure whether a 40mm, 45mm, 50mm or 60mm gate is correct for your build, contact us before ordering.\u003c\/p\u003e\n\u003cp data-end=\"5571\" data-start=\"5495\"\u003eWastegate sizing is part of boost system design — not just a parts decision.\u003c\/p\u003e\n\u003chr data-end=\"5576\" data-start=\"5573\"\u003e\n\u003ch1 data-end=\"5611\" data-start=\"5578\" data-section-id=\"8e8uw9\"\u003eWhy Buy From Walton Motorsport?\u003c\/h1\u003e\n\u003cp data-end=\"5652\" data-start=\"5613\"\u003eWe don’t just sell Turbosmart products.\u003c\/p\u003e\n\u003cp data-end=\"5800\" data-start=\"5654\"\u003eAs a UK-based turbo manifold manufacturer, we design and build systems where wastegate selection directly affects boost stability and reliability.\u003c\/p\u003e\n\u003cp data-end=\"5820\" data-start=\"5802\"\u003eWe understand how:\u003c\/p\u003e\n\u003cp data-end=\"5899\" data-start=\"5822\"\u003e• Manifold design\u003cbr data-end=\"5842\" data-start=\"5839\"\u003e• Turbo sizing\u003cbr data-end=\"5859\" data-start=\"5856\"\u003e• Turbine A\/R\u003cbr data-end=\"5875\" data-start=\"5872\"\u003e• Exhaust backpressure\u003c\/p\u003e\n\u003cp data-end=\"5941\" data-start=\"5901\"\u003e…all influence correct wastegate choice.\u003c\/p\u003e\n\u003cp data-end=\"5985\" data-start=\"5943\"\u003eIf you want it right the first time — ask.\u003c\/p\u003e","brand":"Turbosmart","offers":[{"title":"Black \/ 7psi","offer_id":48881200103754,"sku":"TS-0552-1002","price":389.94,"currency_code":"GBP","in_stock":true},{"title":"Blue \/ 14psi","offer_id":61298220859722,"sku":"TS-0552-1011","price":389.94,"currency_code":"GBP","in_stock":true},{"title":"Black \/ 14psi","offer_id":61298220892490,"sku":"TS-0552-1012","price":389.94,"currency_code":"GBP","in_stock":true},{"title":"Purple \/ 14psi","offer_id":61298220925258,"sku":"TS-0552-1013","price":389.94,"currency_code":"GBP","in_stock":true},{"title":"Red \/ 14psi","offer_id":61298220958026,"sku":"TS-0552-1014","price":389.94,"currency_code":"GBP","in_stock":true},{"title":"Sleeper \/ 14psi","offer_id":61298220990794,"sku":"TS-0552-1015","price":401.94,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/9602\/5418\/files\/TS-0552-1012-Top.jpg?v=1772345934","url":"https:\/\/waltonmotorsport.com\/products\/turbosmart-compgate40-40mm-external-wastegate-genv","provider":"Walton Motorsport","version":"1.0","type":"link"}