V44

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The base model of the Vi-PEC range, the V44 is fully featured and very flexible.

The Vi-PEC V44 is our budget model. Despite this, the V44 is very capable with control of up to four variable cams and support for engines up to twelve cylinders. Software has very flexible options over how the inputs and outputs are controlled, and allows the user to design their own functions to control all sorts of devices. Precise control of injectors and ignition angle are guaranteed at very low or high RPM or manifold pressures. A very high level of protection from interference and tolerance of trigger input errors has been built into this ECU, ensuring a smooth running engine even under the most demanding conditions.

Motor Sport features include: Antilag, Flatshift, Launch control and traction control in first gear.
Individual Cylinder Knock control, when external digital knock amplifier used.
Peak and hold injector drivers. Both the peak Amps and hold Amps can be set separately in the software for optimum injector control.
Closed loop control of idle speed and boost pressure makes for a "factory" idle speed stability, and precise control of boost pressure. Boost control can be setup to provide a different boost in each gear or switch between boost control tables.

Features Hardware Software Specifications Documents Support

Features

V44 Features

Ignition Outputs	4
Injector Outputs	4
Auxiliary Outputs (PWM or On/Off)	8
Analog Input Voltage	5
Analog Input Temperature	2
Digital Inputs	4
Knock Sensor Input	0
Peak & Hold Injector Drives	Y
Internal MAP Sensor	4 Bar
User Define GP On/Off	Up to 8
User Define GP PWM Tables	Up to 8
Variable Cam Control	Up to 4
Idle Control for 2 & 3 Wire Valves	Y
Idle Control, 4 & 6 Wire Stepper	Y
Boost Control	Y
Antilag	Y
Flat Shift	Y
Launch Control	Y
Logging Memory (ECU)	4MB
Closed Loop Narrow Band	Y
Closed Loop Wideband WOT (External wideband controller required)	Y
E-Throttle (DBW) (Extender controller required)	Y
Knock Control (External amplifier required)	Y
QuickTune	Y
PC Memory Logging	Y

Hardware

Hardware info

The original product will have been shipped with the following hardware setup:

Main Connector 34 Pin waterproof.
USB data link connector plus CAN
Case, silver extruded aluminum, 142 x 172 x 42 mm (overall).
40 MHz Specialized Automotive Microprocessor.
Ignition control to 0.1 degree, fuel to 0.01 ms -
32 Bit Calculation -
10 Bit ADC Resolution
Max 20000 RPM
ECU to PC data link operates at up to 57600 baud for fast data update an logging using PC logger
High efficiency power supply & output drivers for reduced power consumption and reduced self-heating.
Four ignition outputs. Sequential to 4 cylinders and wasted spark up to 8 cylinders. Support for engines up to 12 cylinders with distributors.
Software selectable dwell or O/P pulse duration modes possible.
Four coil dwell, software selectable.
Four low current injector outputs. Optional Peak and Hold drivers available.
Spare injector and ignition outputs can be used for output control.
8 Auxiliary Outputs
4 Digital Inputs
4 Analog Voltage Inputs
2 Temperature Inputs
3 Load Inputs (MAP, TPS, MAF)
2 Trigger Inputs (Reluctor, Optical or Hall Sensors)
Camshaft & crankshaft sensor inputs individually software configurable for hall effect & reluctor sensor types. Response speed is also software configurable for improved noise immunity.
Four general purpose digital Inputs with logic level sensitivity & pullup to +5volts. Useable for speed, switch input and camshaft position measurement.
Variable Camshaft control for up to four camshafts. VANOS and other VVT and VVT-i supported.
NTC or PTC air temp sensors, software selectable.
Internal 4 bar map sensor. External map sensor support.
Internal baro sensor. Corrections for barometric changes in real time.
Stepper motor idle control, two and three wire idle control.
Support for air flow meters.
Tacho & Diagnostic outputs.
Communication with PC software via USB cable. (No need for Serial to USB adapters)

Software

Software info

Software	VTS
Version	V4.10.2.1784
Firmware Version	V4.10.2
Compatible Firmware	V4.8.4 to V4.10.2
Languages	English

If you need an older version of VTS, you can access it in our software section

Some of the features that come in the software include:

Tuning tools, QuickTune Mixture Table, Maths Key.
Launch Control (two step rev limiter based on vehicle speed).
Flatshift (change gears without clutch at WOT using standard gearbox).
Antilag (keep turbocharger on boost during gear changes) with turbo cooldown function.
Selectable ignition tables.
Up to 440 Zone Fuel Table with configurable load and RPM centres. MGP, MAP and load options.
5D Fuel Mapping.
Many correction tables for precision fuel & ignition adaption.
Digital Trigger Decoding.
Reluctor, Optical or Hall Sensors.
Programmable filtering and arming thresholds.
Configurable trigger patterns or preset triggering options, such as, Multi tooth, missing tooth, Subaru, Nissan, Mitsubishi, Ford, Mazda, GM, Suzuki and Toyota triggers. Software selectable trigger angle.
Support for up to four rotor engines with ignition split.
Dedicated idle control with additional settings for better adaption to changing operating condition and a more stable idle.
Open loop boost control, switch boost pressures, different boost in each gear.
A/C compressor control.
Closed loop narrow band.
Closed loop wideband at WOT.
Tacho and speedo sweep function.
Cooling fan control.
General purpose control modules for O/P control. (use for variable fuel pump, power steering, inlet manifold air valves, extra temperature control devices etc) some of these are capable of PID feedback control.
Mapping via manifold pressure, throttle position, manifold and throttle or manifold

Specifications

V88 Specifications

Microcomputer		40 MHz Specialised Automotive Microprocessor
Supply Voltage	Normal Operation	6.2V to 23V DC continuous
Supply Voltage	Safe limits	+/- 24V (5 min) +/- 80V alternator load dump (0.5 sec) +/- 1000V inductive spike (10 usec)
Current Drain	At engine idle	< 1 Amp
Current Drain	At max engine load	< 16 Amp (less depending on injector type and number
Operating Temperature Range	Min	- 40 deg C
Operating Temperature Range	Max	+ 85 deg C
Engine Cylinder Number Settings	Number of cylinders	1, 2, 3, 4, 5, 6, 8, 10 and 12
Engine RPM Range	0 to 20,000 RPM	Engines up to 12 cylinders
Injection Duration Timing	Mix	0.65 msec
	Max	50 msec
	Accuracy	+/- < (10 usec + 1%)
	Setting resolution	0.1% approx
Injection Timing	Range	0 to 720 deg (crank angle)
	Accuracy	+/- < (1.4 deg + 0.3 msec)
	Settings resolution	2.8 deg
Ignition Timing	Advance range	0 to 45 deg (crank angle)
	Accuracy	+/- 0.2 deg (crank angle)
	Setting resolution	0.5 deg (crank angle)
Fuel Delivery and Ignition Mapping	No. load sites	16 (max) - Freely selectable
Fuel Delivery and Ignition Mapping	No. RPM sites	32 (max) - Freely selectable
Data Logging Memory	Size	4 MB
Size	L * W * H	142 * 127 * 42 mm 5.5 * 5 * 1.65 inches
Weight		500g / 1.3lbs
Connectors		34 way 'AMP' water and dust proof socket. USB Socket CAN bus socket for dash display.

Documents

Support

V44

The base model of the Vi-PEC range, the V44 is fully featured and very flexible.

V44 Features

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