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VF Engineering Porsche 996 (99-01) VF425 Supercharger Kit (VFK12-01)

VF425 Supercharged 3.4 liter $8895 Power: 425 hp / 360 ft/lbs  6.0 PSI  V3 Si-Trim Vortech supercharger  Air/Water aftercooler  ECU software flash  VF Part# VFK12-01     The VF-Engineering designers set about designing the billet supercharger mounting bracket with CAD software creating solid models of parts to be CNC manufactured. The bracket was designed to utilize OEM bolt patterns and requires no alteration or relocation of any engine parts to be fitted. Made from 6061-T6 aircraft grade aluminum the bracket mounts to factory machined surface points on the aluminum engine block for a precision fit. A V3 model Si-Trim Vortech Engineering supercharger unit was chosen after consultation with Vortech engineers and matching the engine’s volumetric efficiency with supercharger compressor maps. The V3 unit contains helical-cut gears for super quite performance – virtually silent with the engine compartment lid closed. The V3 supercharger has a 20psi and 1000cfm maximum capacity and is an over-engineered part for this Porsche application which is geared to produce a conservative 6psi in the engine’s intake manifold. The fastidious design of the supercharger bracket, positions the belt driven supercharger to maintain use of the OEM spring loaded belt tensioner. The serpentine belt routing was designed to maintain the correct rotation of all the accessories and maintain optimal pulley wrap for maximum friction. The Vortech air to water intercooler (charge cooler) was integrated into the tight fit engine bay as means of reducing charged induction (boost) temperatures. Lower charge temperatures promote engine safety by reducing knock and improving the quality of the combustion cycle. Air charge (boost) from the supercharger is directed through the chargecooler core before entering the throttle body. The cooler core contains isolated channels circulating with water from a separate self contained system cooled by its own radiator. VF-Engineering integrated a Porsche OEM front radiator and front bumper vents into the kit. Water is circulated by means of an added OEM Bosch water pump through OEM Good Year water lines. Intake air temperatures in the manifold were measured to be approx 140 deg F even with ‘spirited’ driving at 118 deg F ambient temperatures in Arizona desert conditions mid-Summer. This dramatic drop in charge temperature helps the 996 create consistent power. For added safety the chargecooler is designed to perform continuously whilst the ignition is on. With all major components in place, VF-Engineering set about shaping the air ducts from the filter to the throttle body. The intake pipe is specially tuned for its air flow characteristics and pressure relief system. Production pipes are manufactured from a lightweight molded high temperature polymer. The thermal insulating properties of the plastic pipes prevent heat transfer into the cooled charged air traveling inside them. Engine management software was by written by VF with extensive testing performed on independent test cars. Multiple factors such as charge air temperatures, ignition timing, fuel trims, maps and injector performance were taken into account. The Carrera 2 and 4 test vehicles were extensively dynoed on the VF 4WD Mustang and monitored for wide band air fuel ratios at load levels often greater than would be experienced on the road. The results are an increase of upto 150 horsepower and 90 ft.lbs of fully usable torque. Software is programmed into your ECU using the “Hex-Flash” programming cable (except for 1998-99). You can program your ECU in 15 minutes yourself through the OBD2 connector on your dashboard. This tool also allows you to read and clear ecu codes. Vortech V3 Si-Trim supercharger Air water charge cooler system Polypropylene water reservoir OEM high density water radiator Bosch water pump Bosch EV14 fuel injectors Bosch bypass valve Hard anodized 6061-T6 aluminum bracket OEM serpentine belt K&N induction filter with air box Hex Flash ECU tuning programming cable Install time 14-16 hours approx Made in California, USA.
VF425 Supercharged 3.4 liter $8895 Power: 425 hp / 360 ft/lbs  6.0 PSI  V3 Si-Trim Vortech supercharger  Air/Water aftercooler  ECU software flash  VF Part# VFK12-01     The VF-Engineerin...
We’ve heard some pretty clever guesses: Vigorously Force-fed, Very Fanturbulous, Victorious Fanatics. In truth, we picked the V and F simply because the name VF-Engineering was available. The acronym doesn’t mean anything. Now what VF-Engineering stands for is far more important and it’s something no amount of clever marketing or pretty pictures can achieve. Microdata-measuring-arm-1-of-1 Every part, line of code or supercharger system that leaves with the VF label stands for the paragon in design, engineering and performance. It means your car is running the best there is. After years of spirited use, more than 93 percent of VF Supercharging Systems are still running strong, many on their second and third owners.That’s a great testament to solid design and robust fabrication. That’s what we want VFE to mean. VF Engineering has been located in Orange County, CA for nearly 20 years now. Our facility measures some 15,000 sq-ft and includes a Mustang AWD 500 chassis dyno, 4 Hunter lifts, a big photo studio, R&D room with a rapid prototyper, and a clean room for ECU board work. We’ve also got this big-ass red couch. Not sure where it came from but it has a magical effect on cars. They always make a few extra hp when the red couch is there.
We’ve heard some pretty clever guesses: Vigorously Force-fed, Very Fanturbulous, Victorious Fanatics. In truth, we picked the V and F simply because the name VF-Engineering was available. The acronym doesn’t mean anything. Now what VF-Engineer...

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