VF-Engineering chose to supercharge the BMW Z3 2.3 and 2.5 to improve throttle response and mid-to-top end power with the centrifugal Vortech supercharger. Maintaining the the original BMW quality, smoothness and reliability were the key factors in the VF design. This is where the GIAC software comes into full play. VF has harnessed reliability of Vortech superchargers and quality of GIAC custom software with their 10 years of supercharging experience and worldwide OEM supply contacts to create the ultimate supercharger system for the ultimate drivers car.
All key components are 100% made in California. This system has been fully road tested and dyno tuned on both the GIAC Mustang MD500AWD and in-house Dynojet 224xLC dynamometers with and without engine load. All stage 1 kits are setup at 6 psi and create as much, if not more power than similar products running greater levels of boost.
VF engineers spent over 12 months software testing the BMW Bosch and Siemens ECUs and resolved "stalling and MAF issues" faced by other supercharger systems. Software flash technology and latest BMW file versions have all been employed to provide the cleanest and the most reliable method of software installation. GIAC 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 BMW engine, making over 40% more power in most applications.
VF chose to mount the Vortech supercharger with an in-house CNC machined aluminum bracket system. The unit is positioned in line with the original serpentine belt which is replaced with a longer OEM belt. The key to this design is that the OEM active-spring belt tensioner remains fully functional and eliminates belt slip or the need to manually tension the belt. The supercharger air ducts are custom molded in-house from plastic to give an OEM appearance, quality and fit. The incorporated Bosch boost overrun system is designed for smooth off-throttle cruising and deceleration with clean emissions. The crankcase ventilation system is designed to cope with positive pressure and high flow OEM injectors are supplied to fit as direct replacements without modification to the injector rail. A removable plastic air box is provided with the K&N induction filter for those who use their vehicles in persistently wet climates.The VF supercharger system remains fully OBD2 compliant and is supported by a 3 year unlimited mileage warranty on the product only. Installation can be performed in approximately 8 hours and is non-intrusive, allowing it to be fully reversible.
Every aspect of this kit has been fully engineered for high quality fitment and highly demanding performance and expectation. VFs in-house horizontal, turning and milling CNCs and plastic molding plant, GIACs industry reputation and track record, and Vortechs reliability have been fully exploited to create a product with internationally un-rivaled material technology, quality, and performance.
Stage 1 is set up to create 6psi manifold pressure at peak boost. VF engineers tested and found 6psi to be the optimal induction charge limit without aftercooling.
Not all vehicles respond identically to engine modifications 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 at sea level, with stock setups (i.e. throttle body, exhaust system, etc.). The GIAC 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. Power gains may vary according to factors such as altitude or vehicle condition.
Horsepower: 170 to 271 (Gain of 101 HP)
Torque: 181 to 235 (Gain of 54 ft/lbs)
- GIAC custom tuned stage 1 software
- RPM limiter increased
- Soft rev limiters and top speed governor removed
- Vortech V2 Super Quite SC trim polished supercharger
- 3 year unlimited mileage limited product warranty
- VF- CNC machined 6061 aluminum bracket system
- OEM BMW idler pullies
- OEM High flow fuel injectors
- VF- Custom molded polypropylene ducting
- VF- Custom tuned supercharger intake
- Bosch overrun bypass valve system
- Custom crank case ventilation system
- 4 ply silicon couplers with OEM screw clamps
- VF- CNC oil fittings with high pressure OEM oil lines
- Replacement OEM serpentine belt
- K&N induction filter with cold air intake and optional air box
- Comprehensive installation CD-ROM
- Compatible with automatic transmission (please specify)
- Precision Made in California, USA
WARNING: Cancer and Reproductive Harm
Since 1999, VF Engineering has been leading the industry in developing complete bolt-on supercharger systems for European sports cars. The company has been supercharging 5.2-liter V10 engines since 2010, and now offers HEX Tuning off-road race tunes for Audi, BMW, Ferrari, Lamborghini, and more!
VF’s management and engineering team draw upon their immense experience of high-performance superchargers to create top-rated products. VF Engineering has been working on modern sports cars in joint and proprietary projects and partnerships with firms in the United Kingdom, Switzerland, and the USA. Such has given VF the opportunity to promote its product lineup in Europe, U.S., and world markets. VF Engineering is dedicated to staying up to date with the latest information and technology. Moreover, it has access to new models as they roll off the assembly lines in Germany through important OEM connections, clients, and manufacturer organizations.
VF Engineering is located in Orange County, California, where it has remained since its inception. The facility measures approximately 15,000 square feet and includes a Mustang AWD 500 chassis dyno, four Hunter lifts, a large photography studio, an R&D room with a rapid prototype, and a room for ECU board work.
Interestingly enough, the acronym in VF Engineering does not mean anything; the name was chosen merely from availability. What VF Engineering stands for is far more important and something that no clever marketing scheme could achieve. Every single part, line of code, and supercharger system that leaves with the VF label stands for the epitome of design, engineering, and performance. Seeing the VF label on a part means that your car will be running the best it can.
More than 93 percent of VF Engineering’s supercharger systems are still running strong even after years and years of spirited use. In fact, many of these systems are already on their second and third owners! That is a true testament to the solid design, durable construction, and remarkable performance that VF parts boast.
To unleash the true power and potential of your vehicle, you need a supercharging system from VF Engineering. Vivid Racing is proud to carry a large inventory of performance-enhancing parts from VF, including complete bolt-on supercharger systems and HEX tuners for a variety of makes and models. You will notice the difference immediately and wonder how you ever drove with a factory power output. If you have any questions regarding VF’s superchargers, please call our expert parts team at (480) 966-3040.
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