FrostByte WMI Controller

Upgrade your methanol system or build your own. With fuel table-like control of methanol flow, this system is sufficient for almost all water/meth injection setups. Offering much superior control over traditional two knob "progressive" systems, this THE "missing link" of tuning. You get all the top tier features and absolutely none of the extraneous fluff. Each output is rated at 3.5A and that produces a lot of control options:

3D table for MAP vs RPM vs Meth flow
Injector Duty Cycle follower and multiplier
Pulse fast acting RACE valves
Pump pulse control
Failsafe on Pressure Sensor or Tank Level Switch
Independent map sensor supported
Fully progressive linear system
Datalog with graphing abilities
Can pulse fuel injectors

| Modern mappable water/meth control

How it works:
Frostbyte taps into your map sensor and your fuel injector or tachometer signal and then converts that into live information to control fuel flow from a 3D table such as the one below:

| Mappable WMI that's EASY to do FrostByte makes water/meth data analysis easy. FrostByte's display panel makes WMI monitoring easy.
| Simple + smart 2D mapped WMI control FrostByte controls a water/meth pump or solenoids

FrostByte offers vastly superior flow control over regular meth systems
Less time adjusting fuel in the ECU’s main table
No dripping from nozzle
Less worry about choosing correct nozzle sizes
Low level and low pressure failsafes

FrostByte + USRT Failsafe Pressure Sensor

USRT direct port WMI system


FrostByte is ideal for controlling fast solenoids such as USRT's celebrated RACE valves. -especially in the direct port injection configuration. This is how perfect octane delivery and auxiliary fueling are achieved (as well as huge air temperature reduction).


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  • Model: WAIFROSTB
  • Manufactured by: Tuner Nerd

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