{"product_id":"td06-20g-turbo-for-subaru","title":"Tomioka Racing TR TD06-20G Bolt On Turbo Stock Replacement for Subaru WRX 2002-2007 \u0026 STI 2004-2020","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"font-size: x-small;\"\u003e** Attention: All of our turbocharger now comes with billet wastegate actuator. The brass wastegate actuator will be phased out. Picture(s) of turbo or turbo kit(s) with the brass wastegate actuator will be replaced as soon as the new picture(s) become available. If you have any questions, please contact us ** \u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe TR TD06-20G turbo is designed for the newer models of Subaru with fly-by throttle turbo design. This turbo is made for high-end power while maintaining the bolt on design as much as possible. This turbo can handle 500 HP for all your racing needs. Upgraded engine internals is strongly recommended for this turbo. \u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e2002-2007 WRX\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e2004-2020 STI\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContents of Kit:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 1.4em;\"\u003eTurbocharger\u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 1.4em;\"\u003eActuator\u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 1.4em;\"\u003eOil Pipe\u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 1.4em;\"\u003eWater Pipe\u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 1.4em;\"\u003eGaskets\u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 1.4em;\"\u003eHardware kits\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWastegate actuator spring choice: 1.1 bar vs 1.3 bar (what customers need to know)\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eWhat the spring actually controls (and why it matters)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOn a pneumatic internal wastegate, the actuator spring sets your gate pressure (often called base boost): the boost level where the wastegate starts to open because boost pressure overcomes spring force. Haltech describes it simply: changing spring pressure changes the default boost pressure, and when boost exceeds spring pressure the valve opens and begins regulating boost.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose 1.1 bar (16.1 psi) \/ Red if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou want a lower boost map (street\/traction\/valet) around the mid-teens. Remember: you can’t go under the spring.\u003c\/p\u003e\n\u003cp\u003eYour normal target boost is roughly 18–22 psi and you want good controller authority and flexibility.\u003c\/p\u003e\n\u003cp\u003eYou’re building a setup where drivability and multiple boost modes matter (daily + weekend map).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoose 1.3 bar (19.1 psi) \/ Silver if:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou will not run low boost—your “low boost” is still ~19 psi or higher. (If you need 15–17 psi sometimes, don’t pick this.)\u003c\/p\u003e\n\u003cp\u003eYour normal target boost is roughly 22–28 psi and you want:\u003c\/p\u003e\n\u003cp\u003eless “work” from the boost control system to hit target, and\u003c\/p\u003e\n\u003cp\u003etypically better resistance to the wastegate being pushed open early (especially in higher load \/ backpressure situations).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThere are two different “maximum boost” questions people ask:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e1) Maximum boost your boost control can hold consistently\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUsing the GFB rule-of-thumb (target boost ≤ ~2× gate pressure) :\u003c\/p\u003e\n\u003cp\u003eWith a 1.1 bar \/ 16.1 psi spring, the “control stability ceiling” is roughly ~32 psi (2 × 16.1).\u003c\/p\u003e\n\u003cp\u003eWith a 1.3 bar \/ 19.1 psi spring, the “control stability ceiling” is roughly ~38 psi (2 × 19.1).\u003c\/p\u003e\n\u003cp\u003eReality check: that does not mean “safe to run 32–38 psi.” It means beyond ~2× gate pressure, boost control tends to get inconsistent because the actuator isn’t receiving enough meaningful reference signal for correction. GFB explains that once you go beyond double, boost control becomes less stable and more affected by variables like RPM\/load\/backpressure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2) Maximum boost your turbo\/engine can safely run\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThat’s not spring-limited. It’s limited by:\u003c\/p\u003e\n\u003cp\u003eturbo efficiency and speed\/heat,\u003c\/p\u003e\n\u003cp\u003efuel quality and knock margin,\u003c\/p\u003e\n\u003cp\u003eintake temps\/intercooling,\u003c\/p\u003e\n\u003cp\u003eexhaust backpressure,\u003c\/p\u003e\n\u003cp\u003eengine\/clutch\/trans limits,\u003c\/p\u003e\n\u003cp\u003etuner strategy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFAQ:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I run less boost than the spring rating?\u003c\/strong\u003e\u003cbr\u003eNo. Spring pressure is the lowest boost level you can reach.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes a stiffer spring automatically mean higher peak boost?\u003c\/strong\u003e\u003cbr\u003eNot automatically. It mainly raises minimum boost and changes how the wastegate behaves. Boost above spring comes from the control strategy.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy do people say “don’t exceed 2× the spring”?\u003c\/strong\u003e\u003cbr\u003eBecause boost control gets less stable as target boost gets too far above gate pressure; beyond ~double you tend to lose correction authority.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat spring gives the best spool and boost stability?\u003c\/strong\u003e\u003cbr\u003eA spring that puts gate pressure about 10–20% under your target boost is a strong general guideline for best performance.\u003cbr\u003e\u003c\/p\u003e","brand":"Tomioka Racing","offers":[{"title":"1.1 bar","offer_id":48881542889624,"sku":"9IU4Y","price":1550.0,"currency_code":"USD","in_stock":false},{"title":"1.3 bar","offer_id":48881542922392,"sku":"9IU4Z","price":1550.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0564\/0867\/0360\/files\/dsc_4367_front_for_web.jpg?v=1776410725","url":"https:\/\/frsport.com\/products\/td06-20g-turbo-for-subaru","provider":"FR SPORT","version":"1.0","type":"link"}