Audi S4 V8 VF500 Supercharger
Base: 340 hp / 302 ft/lbs
Engine: 4.2 V8
ECU: Bosch ME7.1.X
Power: 496 hp / 434 ft/lbs
Cast intake manifold
Eaton TVS1900 supercharger
ECU software flash
VF-Engineering chose to supercharge the Audi S4 4.2 liter to provide a blistering
launch from a standstill with a water cooled roots type Eaton TVS1900 supercharger.
Only a roots supercharger will give the level of torque increase needed to satisfy
the avid enthusiast. The 1900cc supercharger unit was chosen for its efficiency
when coupled to the 4.2 V8 motor and provide plenty of potential for further
Maintaining the the original Audi
quality, smoothness and reliability were the key factors in the VF design. VF
have harnessed reliability of Eaton superchargers with their 15 years of supercharging
experience and state of the art production techniques to create the ultimate
water cooled supercharger system for the Audi S4.
All key components are 100% made
in California. This system has been fully road tested and dyno tuned on the
Mustang MD500AWD. The Audi S4 supercharger kit is setup at 5.0 psi and creates
as much, if not more power than similar products running greater levels of boost.
VF engineers spent several years
developing, testing and refining the Audi S4 supercharger kit for consistency.
Software flash technology and latest Audi file versions have all been combined
to provide the cleanest and most reliable method of end user software installation
using the “Hex-Flash” programming cable. 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 Audi S4 engine.
The Eaton TVS1900 supercharger is
mounted with a CNC machined aluminum cast intake manifold with an integrated
water cooling heat exchanger. VF’s approach to supercharger development
is quite unique when it comes to design and production style. The unit is accurately
positioned in line with the original serpentine belt which is replaced with
a longer OEM belt.
All supercharger systems are designed
at VF-Engineering using state of the art technology. An example of this engineering
is the employment of a Faro CMM to position and align the supercharger unit
and offset for precise belt alignment. Exact belt alignment determine long term
reliability of the drive belt, bearings and accessories. The supercharger unit
is dowel pinned to the manifold and the manifold is dowel pinned to the cylinder
heads to ensure optimal alignment consistency.
The key to this design is the OEM
active-spring belt tensioner introduced by VF which minimizes belt slip and
gives continuous drive for the supercharger. The supercharger intake is created
for maximum air flow and draws through the throttle body, making the supercharger
“pump” integral to the engines function. The integrated boost overrun
system is designed for smooth off-throttle cruising and deceleration. The crankcase
ventilation system is designed to cope with positive pressure. Higher capacity
OEM fuel injectors are supplied fully assembled with new high capacity fuel
rails and cross over fuel line which connects to the OEM fuel feed. The VF supercharger
system remains fully OBD2 compliant and is supported by a 1 year unlimited mileage
warranty on the product only.
- Eaton TVS1900 roots supercharger
- 6061 Aluminum intake manifold
- Internal bypass system
- High flow cast supercharger inlet
- Air water charge cooler system
- Polypropylene water reservoir
- High density water radiator
- Bosch water pump
- Hard anodized 6061-T6 aluminum
- OEM serpentine belt and tensioner
- Bosch high capacity fuel injectors
- Hex Flash ECU tuning programming
- Fully reversible
- Made in California, USA.