i88

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The Vi-PEC i88 has flexible options over the control of inputs and outputs, allowing 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.

Variable camshaft control for up to four camshafts. Control of camshaft position is very precise and time taken to advance from full retard to full advance is less than 1 second. Support for VVT and VANOS systems
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
Individual Cylinder Knock control, with support for two sensors. Knock control is user definable with flexible settings to allow precise knock control adjustable by ignition angle
E-Throttle (Electronic Throttle Control)
Peak and hold injector drivers are 10 amp. Both the peak Amps and hold Amps can be set separately in the software for optimum injector control.

Features Hardware Software Specifications Documents Support

Features

i88 Features

Trigger scope functionality
Internal Digitally Signal Processed (DSP) Knock Control
On board data logging has user selectable parameters and logging rates
On board logging can record continuously, overwriting oldest data when the memory is full
A log file downloader has been added that allows faster download of all or any part of the logged data
30 General Purpose Table Allocation Slots
Configurable temperature input pullup resistors (Temp 1 and 2) - this allows the use of higher value pullup resister as required for some sensors. The pullup resisters can be turned off completely for piggy back applications
ISO 15764 OBD. Can be used to connect to scan tools or mobile devices for display of ECU parameters. Skeleton functionality is implemented
Works natively in Lambda instead of Air to Fuel Ratio. The Stoichiometric ratio of the fuel currently used can be entered into the Stoich Ratio setting. This allows display of all Lambda values in AFR for tuning if required (refer to metric/imperial units help)
Uses metric units for all internal settings and calibrations. These can be easily converted to imperial units for display as required
More flexible configuration of CAN modules. Standard and extended CAN identifiers are supported as well as more data rates
Fully configurable custom transmit and receive CAN streams
OEM CAN modes are available on both CAN modules
Text strings can be stored to label inputs and outputs. Eg label a GP Input as "NOS Switch"
A memo text can be stored in the ECU with tuner specific information
Four wheel speed parameters have been added. These can be driven from a digital input or CAN
Various parameters including wheel speeds, EGTs, AC Evaporator Temperature and AC request can have their values assigned from CAN
Driven and non-driven wheel speeds can be configured in various ways to drive off the four wheel speeds
All functions that use speed don't require a digital input to be selected. They use either driven or non-driven wheel speed as appropriate
Starter Control function allows controlled activation of a starter motor solenoid. Allows a single push button to start and stop the engine or security systems to safely remote start the engine
AC Control function has simple and full modes. Simple mode uses only an AC Request signal to operate the compressor clutch. Full mode takes into account high side pressure and evaporator temperature
GP Outputs are evaluated every 20ms and have a resolution of 20ms on the switch off timers
PCL files can be locked to an ECU. This allows the tuner to configure a file, lock it, send it to you and it can only be installed in your ECU
Support for KMS CAN products
A dedicated parameter for Oil Pressure Switch
CDI CAN mode displays information from a Vi-PEC CDI. Eg Spark Energy, fault codes
Communications speed up to 625 kBaud. Gives much higher PCLink data rates and log downloading
The return to idle hold timer can be adjusted to control damping as RPM falls
Stepper direction for Idle Control, CL Stepper and Rotary Oil Pump. Allows reversing of stepper direction without altering wiring
OEM CAN mode for Polaris RZR 900
An adjustable timer to prevent the engine fan running forever when the engine is stalled
Volt based gear detection. This allows gear selection from a potentiometer sensor or switched resistor network
Status for indicating if the vehicle is in a driven gear. Can be used in conditional outputs (eg for engaging AWD solenoid)

Hardware

Hardware info

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

Main Connector 2 x 34 Pin waterproof.
USB data link connector plus CAN
Case, silver extruded aluminium, 169 x 172 x 42 mm (overall).
40 MHz Specialised 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 115k baud for fast cal down load & Log file upload (19sec typ for 112k bytes). 112k logging memory.
Internal Diagnostic light & optional remote light.
High efficiency power supply & output drivers for reduced power consumption and reduced self-heating.
Eight ignition outputs. Secquential to 8 cylinders and wasted spark up to 16 cylinders.
Software selectable mappable dwell or O/P pulse duration modes possible.
Eight coil dwell, software selectable.
Eight high current injector outputs.
Spare injector and ignition outputs can be used for Auxiliary output control.
10 Auxiliary Outputs
11 Digital Inputs
4 Temperature Inputs
11 Analog Inputs
3 Load Inputs (MAP, TPS, MAF)
2 Trigger Inputs (Reluctor, Optical or Hall Sensors)
2 Knock Inputs
Support for Reluctor and Hall effect crank and cam sensors.
Camshaft & crankshaft sensor inputs individually software configurable for hall effect & reluctor sensor types. Response speed is also software configurable for improved noise immunity.
Eleven general purpose digital Inputs with logic level sensitivity & pullup to +5volts. Useable for speed measurement or Switch Inputs. Four are useable for Camshaft position measurement.
Individual Cylinder Knock with support for two sensors.
Variable Camshaft control for up to four camshafts. VANOS and other VVT and VVT-i supported.
NTC or PTC air temp sensors, software selectable.
External 2.5 bar or 7 bar map sensor, software selectable.
Stepper motor idle control, two and three wire idle control.
Support for most idle valve type including 2 wire, 3 wire & stepper possible. Stepper pins can be used for spare outputs if not used for idle solenoid control.
Support for air flow meters.
Internal barometric pressure sensor.
Tacho & Diagnostic outputs.
E-Throttle (DBW, Fly by wire) option. No external controller required. The throttle control is built into the i88.

Software

Software info

Software	PC Link
Version	V5.6.8.3669
Firmware Version	V5.6.8.3671
Compatible Firmware	V5.0.0 to V5.6.8
Languages	English/日本語 English/Español English/中文

If you need an older version of PC Link, you can access it in our software archive 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, Mazda, Nissan, Suzuki, Mitsubishi, Ford and GM and Motronic.
Support for two, three or 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.
Fly by wire throttle control will full control over the settings and operation.

Specifications

i88 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, 7, 8, 9, 10 and 12 cylinders 1, 2, 3, 4 rotors
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 (v2 only)	L * W * H	170 * 130 * 42 mm 6.69 * 5.12 * 1.65 inches
Weight (v2 only)		678 g / 1.5lbs
Connectors		2 x 34 way 'AMP' water and dust proof socket

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