While many "high-flowed" options exist on the market today ,utilizing rebuild OEM turbochargers and oversized wheel combinations, our bolt-on Turbochargers for RB20/25 are in a category of their own.
Instead of relying on the old, problematic journal bearing OEM CHRA, we build our RB turbochargers around the same dual-Ceramic Ball-Bearing Cartridge as the rest of our High-Performance Turbocharger line. This modern CHRA does require upgrading of the oil and water lines, and we offer this installation kit along with the turbocharger to ensure simple and straightforward installation.
*** Please note - if selecting the SM400 or SM450/R options listed as "requires OEM Turbo Core" we will require you to send us your OEM Compressor and Turbine housing for Media Blasting, CNC Machining, and Porting. We sometimes have core on hand for exchange, but please email to confirm.***
SM400/R- Torque and response
Utilizing a wheel combination unique to this turbocharger, the SM400/R is well suited for both stock RB20's wanting more power and reliability than the OE turbo can produce, as well as RB25 applications needing increased response, torque, and power. As with every SM/R turbocharger, this kit is designed to be a full bolt-on to your existing exhaust manifold, downpipe, and compressor connections. A fantastic street and drift combo for your lightly modified skyline, at a very competitive price. Pump-gas output of 350BHP on RB20 and close to 400BHP on RB25 can be expected with supporting mods
SM450/R- More flow, More power.
taking the entry level kit a step further, the SM/R500 kit utilizes a larger 54mm Billet Compressor to increase horsepower capabilities further. While still providing near stock spool characteristics, this setup is better suited to RB25 applications, or RB20 vehicles with upgraded cams and Head Gasket. Larger, 55mm Exducer Turbine helps reduce Exhaust Manifold Pressure at high boost levels. Turbine Housing comes standard with Cerakote Ceramic coating.
SM505/R - Ultimate Power delivery.
Beyond the horsepower range possible on the OEM Turbine Housing and Internal Wastegate, our SM505/R Turbocharger utilizes a larger, .82 A/R Turbine with either large-diameter internal Wastegate, or integrated 38mm V-band Tial Wastegate and V-band, 3" stainless Turbine Outlet Pipe. Standard configuration includes recirculated wastegate dump and 3" inlet compressor housing as a further improvement 55mm Billet Compressor Wheel. This Turbocharger represents our best all-around OEM fitment Turbocharger, and helps bridge the gap in power between bolt-on Turbochargers and Top-mount Tubular Manifold / Single Turbo Configurations.
SM555/R - Next-Generation Features and Performance
Our Max-effort bolt-on Turbocharger kit for the RB20/25 is built around our newly-released 58/LPR ball-bearing Turbocharger. This Compressor features a high-trim, low-Inertia 58mm Compressor Wheel with a high degree of blade backsweep. The result is up to 60lb/min of airflow in a compact package, with increased efficiency at low-to-mid range Pressure Ratio and very good Surge resistance. This turbo features an all-new CHRA and can be built around an either Iron or Aluminum Bearing Housing, reducing mass and allowing for the unit to be fully corrosion resistant. Improved cooling jacket and stainless heat shield improve durability at high temperatures, and twin piston rings on both sides of the rotor group increase sealing effectiveness. While this larger Compressor can support a significant increase in airflow, response is still surprising... with full boost available before 4kRPM.
Please note: OEM turbocharger core charge is applicable for SM400/R and SM450/R kits, and utilizes the existing OEM compressor and turbine housing castings, re-machined to fit a new ball bearing CHRA.