N20 & N26 Turbo Upgrade Information

General Turbo Upgrade Guidelines

• Upgraded turbos require a custom map and can max out the stock HPFP and injectors depending on fuel used and climate
• Custom manifolds are expensive and time-consuming. A/R turbine housing is important when fitting an aftermarket turbo
• Twin scroll housing + twin scroll (divided) turbo manifold is recommended for optimal spool up
• For setups up to 550WHP: 0.64 A/R turbine housing is sufficient
• For setups up to 750WHP: 0.72 A/R turbine housing is recommended
• It is recommended to use internally waste-gated turbos for the platform
• When using external wastegate setups, the Turbo Smart Straight gate or VTT straight gate adapter allows OEM WG control using the electronic wastegate solenoid
• Stick to using the factory DME for tuning and management
• Port injection may be required depending on your power goals