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VF Engineering Supercharger Kit, Stage2 Upgrade, MK4 12v VR6
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VF Engineering Supercharger Kit, Stage2 Upgrade, MK4 12v VR6

Price: $1,250.00

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VF-Engineering is the first to develop and build a supercharger kit with true OEM quality and drivability for the Volkswagen MK4 chassis. It is also the first truly do-it-yourself and reversible conversion kit, using the famous "bullet proof" Vortech Engineering supercharger unit. The key to the design of this supercharger kit is the simplicity with which it can be bolted on. The kit is supplied with every part needed to get your car up and running supercharged on the same day.

The MK4 VR6 is a US & Canada model only, combining the VR6 engine from the MK3 into the MK4 chassis but with some special upgrades. For example the MK4 VR6 operates by "egas" also known as "drive by wire" and utilizes a new plastic variable runner intake manifold. This combination is an evolution of the VR6 engine first released in 1991 in Europe. With its narrow angle V-block and single cylinder head, the VR6 is a powerful and reliable engine design. In stock form, the VR6 is quick off the mark thanks to the variable intake, but loses acceleration at high rpms, making it an ideal candidate for centrifugal supercharging. The VF stage 1 supercharger conversion adds 80hp.

VF-Engineering used in house engineers to re-tune the ECU which makes this product a comprehensive tuned package raising the VR6 hp rating by almost 90% at the wheels! All testing and development was performed with Californian 91 octane gasoline and dyno numbers reflect this. VF engineers extensively re-wrote the ECU software using their own binary, assembly and disassembly algorithms written from scratch. Testing the software included extensive road and dyno test cycles, with acceleration and deceleration tests for driveability smoothness and ECU fuel management. All test cars were put through long term full throttle testing in conditions varying from wet cold climates to hot dry Arizona desert temperature for safe-optimal air fuel ratios and knock activity monitoring. Competently-written ECU software has allowed VF to fully explore the potential of the VR6 engine. In tests using higher octane pump gasoline, power output increased by an additional 5% and even higher with high octane race fuels.

Performance, reliability, and stock feel are major factors in the extensive R&D carried by VF-Engineering in Europe and the USA. The custom proprietary VF.VF software supplied with this kit safely re-aligns all fueling and engine management parameters. Unlike other forced induction solutions, VF-Engineering's kit is designed to work safely within Volkswagen's OEM parameters thus minimizing the likelihood of spurious DTCs (Diagnostic Trouble Codes) or Check-Engine Lights.

Every aspect of this kit has been fully engineered for high quality fitment and highly demanding performance and expectation. VF's in-house horizontal, turning and milling CNC's and plastic molding plant, VF's industry reputation and track record, and Vortech's reliability have been fully exploited to create a product with internationally un-rivaled material technology, quality, and performance.

Not all chassis dynos produce comparable results which is why it is important to consider the "delta", or relative power increase, measured on the same dyno before and after modification. Power gains shown by VF have been found to be accurate on test vehicles on 91 octane, with stock setups (i.e. throttle body, exhaust system, cams, etc.). The VF software adapts just as the OEM software and a slight increase in performance may be expected from the use of higher quality fuels such as 93 octane.

Stage 2 is an upgrade package designed to add onto stage 1. A complete combined stage 1&2 can be ordered if desired also. Stage 2 includes a boost increase kit and larger set of custom fuel injectors and upgraded ECU software. This is also a reversible and simple to fit conversion taking approx. 4 hours to fit.

Stage 2 features everything from stage 1, plus:

  • VF custom tuned stage 2 software
  • Boost increase from 6 to 8 psi
  • Power increase to 280hp and 250tq
  • Larger custom OEM injectors to fit under the stock manifold
  • Billet race bypass valve to replace bosch plastic valve

Note: ECU number will be needed for proper software with your kit. Please include that information in the motes section of the checkout page.

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