Z1 2023+ Nissan Z VRX70B Bolt-On Ball Bearing Turbochargers

Introducing VRX70B Ball Bearing Turbochargers, the newest evolution of Z1's VRX turbos tailored for the 2023+ Nissan Z. These turbochargers closely resemble the original VRX70 Turbochargers designed for Infiniti's VR30 powertrain, but now integrate ball-bearing CHRA's for enhanced spool time and response.

Precision-engineered for exceptional power gains and thrilling driving experiences, VRX70 turbos boast a 100% new turbo assembly. Unlike their predecessors, they recycle ZERO parts from the frame or cartridge, eliminating the need for a core charge or return and making them the most cost-effective and convenient upgrade option available.

Featuring a high-efficiency billet compressor wheel, advanced turbine blade design, and a larger .70 A/R turbine housing, these turbochargers significantly increase airflow, supporting over 700 horsepower with suitable fuel systems and other modifications. Not only do they deliver remarkable performance enhancements, but they are also built to endure. Constructed with high-quality materials, the Z1 VRX70 Turbochargers are engineered to withstand rigorous driving conditions and maintain peak performance for years to come.

These turbochargers offer a seamless installation as a direct bolt-on upgrade, complete with all necessary components, including new oil and water lines, gaskets, and hardware.

Why larger turbos?

As you read that, you probably found yourself thinking, "I want more power, obviously," but what if we told you there's more to gain from larger turbos than just raw horsepower?

The stock turbos on your VR30 are pint-sized. We're talking "looks like they belong on a Honda Fit" small. Sure, they're great for engine response, but at higher RPMs, especially with increased boost from a tune, they start to falter. A boosted Z feels lively and responsive, but as you push past peak power in the rev range, it starts to struggle, losing power rapidly. Why? Because those stock housings can't flow enough air to keep up with the engine's demands. Tuners often compensate by cranking up the boost, but that just leads to pre-turbine pressure overload, raising temperatures and increasing the risk of detonation. This is where upgraded turbos step in: larger turbos flow more air with less restriction.

Enter Z1's VRX70 Turbos with their .70 A/R turbine housing, offering a significant boost in flow compared to the stock .53 A/R housings. This means they're more efficient at generating power and require less boost pressure for the same output. Lower boost levels also mean reduced turbine speeds, making it easier to manage turbo-generated heat. More crucially, it helps the engine churn out more horsepower towards the peak of the rev range, right where sports cars thrive. To tackle boost creep, we've maximized the wastegate port's surface area with a unique port shape. In this iteration of our VRX Turbo, we've employed ceramic ball bearing CHRA's to further enhance response and reduce spool time.

Installation Note: The VRX70 reuses your Z's existing wastegate actuator and speed sensor (on Red Sport applications) and must be configured properly when installed. Please understand this is a critical process, and failure to install and adjust the wastegate actuator properly will result in issues when operating and tuning the car. For this reason, we recommend these turbos be installed by a competent and reputable performance shop.

OPTIONS

When you install Z1's VRX70 Turbochargers, you won't be able to use the factory diverter valves. The larger compressor housing takes up the space where the factory diverter valves used to sit. Therefore, to run our VRX70 turbochargers, you'll need a VRX-specific blow-off valve kit. In the product options, you can select and add any of the following blow-off valve kits.

THE GAINS

The dyno graph below represents what we consider to be a safe limit for 93-octane fuel on the VR30, making 503whp and 469wtq at only 17PSI!. This was completed on Z1's Q60 with VRX turbo's and basic bolt-on modifications.

The dyno graph below shows the upward potential of the VRX70 with higher octane fuel. This tune was completed on the exact same car with 104-octane race gas and was tuned to the limits of the MAP sensor, making 670whp and 595wtq.

Is 670whp just not enough? Then the dyno sheet below may satisfy you. Our friends at SOHO took the VRX70 even further, pushing them to 754whp and 587wtq, an astounding figure for a street-driven car.

Specifications:

• Ceramic Ball Bearing CHRA
• Turbine Housing
  • .70 A/R (vs .53 A/R Stock)
  • Material - Industry Leading D5S
• Turbine Wheel
  • Inducer – 53.9mm
  • Exducer – 47.0mm
  • Material – Inconel 713C
• Compressor Housing
  • .60 A/R (vs. .52 A/R stock)
• Compressor Wheel
  • Inducer - 49.8mm
  • Exducer - 67.6mm
  • Material - Billet 7075 Aluminum

Features:

• No core required
• Track tested
• VSR balanced rotating assembly
• Custom billet compressor wheel
• Custom turbine wheel
• Reuses factory wastegate actuator
• Direct bolt-on replacement for factory turbos
• Compatible with factory cats and any aftermarket cats that use stock flange placement
• Capable of supporting beyond 700+hp with proper fueling and supporting mods.

Fits:

• 2023+ Nissan Z