The MPG MAX® Stage 3 Boost Cooler® is unmatched for increases in fuel economy AND power. Key to this is the incredible accuracy and adjustability designed into the system. Usable on all VW/Audi EFI engines (except those with direct injection) the controller features an LCD display and interface easy on-the-fly adjustments.
The main difference between this version and the normal Boost Cooler Stage3 is that MPG MAX produces a "controlled leak" of high-pressure spray. During lighter engine load states, the controller injects through a very small nozzle. This evaporates inside the combustion chamber and improves fuel efficiency. Under the heavier load states, a larger secondary nozzle (or series of them in a direct port arrangement) is triggered. Both stages are fully mapped to engine load state (vs. crude on/off actuation).
A Dual Nozzle Mount Package is recommended for direct fitment of the two nozzles.
Extremely simple to set up and dial in, the software creates a delivery map based on boost pressure (up to 4.5bar/65psi), injector duty cycle, or blend of both signals -all via set points the driver punches in while seated. We recommend that initial tuning be done on boost pressure alone. Then, fine tune via trimming by duty cycle. Engines with fast-spooling turbos are well served with a 50/50 MAP/IDC scheme whereas those with bigger/laggier chargers could go with a 70/30 bias. In any case, the amount of spray delivered is a more exact match to the engine's load state. This allows the tuner to more safely ride the razor's edge. -to generate more power with greater safety and to also decrease overall fluid consumption.
The LCD screen also functions as a guage with full display of boost pressure, fuel injector duty cycle, and water-methanol injection amount. Low profile design allows for discrete mounting in line of eye site or tucked away in a glove box, etc. Also see our plug n' play Tap Harness kit that makes duty cycle a cinch to pick up.
• UHO (Ultra High Output) pump
• 3 quart reservoir
• LCD Screen: pushbutton digital variable mapping controller
• 2 Nozzles to cover a wide range of horsepower
• 10 feet high-pressure tubing (1200psi burst)
• Flow control solenoid
• Dual Nozzle upgrade included
• All required hardware meeded for installation
• Comprehensive Instructions
Nozzles MUST be sized properly to match total fuel flow, boost levels, and intercooling setup. Please contact USRT for help with this critical aspect of kit configuration. Other companies randomly provide nozzles that they have in stock with the lazy and false assumption that "one size fits all" applications. They abandon the user to to determine final setup on their own via trial and error. Dyno time is expensive and so are engine internals. Consult with our tech support to get it right from the very beginning.