VEMS (Vanquish Engine Management System)

Improve Drivability, Fuel Economy, Power/Torque, Drivability, Idling and Operating Quality – Engine Management Systems precisely deliver the proper amount of ignition timing, acceleration fuel, and operational fuel resulting in increased throttle response. Ignition timing and fuel dispersion can be modified per rpm, load and throttle position. This flexibility optimizes engine efficiency throughout every rpm and load range. Throttle movement, whether forward or backward, signals acceleration or de-acceleration maps. Initial start-up/ warm-up fuel maps ease starting. Idle and operating quality can be enhanced by the following functions:

- Distributing highly atomized fuel in precise amounts
- Phasing the fuel timing
- Using injector bias with multiple injectors
- Sequentially “trimming” fuel delivery per cylinder
- IAC motor
- Correction tables for air temperature, and water temperature
- Correct ignition timing
- Sequentially “trimming” each cylinder’s ignition timing
- “Dwell times” from CDI ignitions
- “Wasted spark” systems

Fuel Economy – Exact fuel control for every rpm and load value increases overall fuel economy from 15% to 20%. In addition, high fuel pressure injects intensely atomized air/fuel charges, which increase volumetric efficiency.

Power/Torque - Power gains on average are 20% from 0-3000 rpm, 10% from 3000 to 4500 rpm, and 5% at full throttle. The ability to manage accurate fuel distribution and ignition timing for every rpm range and load range enables impressive engine efficiency, resulting in higher power output.

Longevity – By eliminating engine inefficiency, EFI prolongs engine life. Over-fueling and misfiring dilutes the lubricating system with fuel, causing wear and friction on piston rings, bearings, camshaft, valve train and valve guides. Highly atomized fuel/air mixtures prevent “rich or lean” conditions, which cause engine deterioration. A smoother running engine has a lower mechanical deterioration rate.

Protection – Protect your valuable engine investment by having this engine management system “alarm” you. This always ensure the engine operating within parameters such as, voltage, air temperature, water temperature, oil temperature, water pressure, oil pressure, fuel pressure, ECU temperature, knock sensing, and excessive rpm. Data is viewable for analysis.

Traction Control – By initiating a complete traction control system, the rider has the ability to limit rear-wheel spin at the flip of a toggle switch. Three traction control modes are available:

- Off, which allows for complete wheel spin and long, smokey burnouts
- Max. Acceleration, which provides an approximate 10% rear wheel slippage for maximum performance at the drag strip
- Full On, which allows zero wheel spin, making dangerous weather driving a safer experience.

VEMS - VANQUISH ENGINE MANAGEMENT SYSTEM

Our Systems integrates EFI Technologies electronic control units. The system is lap-top programmable and uses a Windows based program. The system eliminates EPROM type programming. The system has a broad and comprehensive range of abilities and components:

- Can be operated in “Speed density” or “Alpha-N”
- Controls batch fire, bank fire, or fully sequential fuel delivery
- Fully sequential ignition timing
- CDI or wasted spark ignition systems
- Fuel & ignition compensation tables
- Cold start enrichment tables
- Soft and hard rev limiters
- Controls up to 16 low impedance “peak and hold”-phased injectors
- IAC motors
- Variable cam timings
- Self–diagnostic testing
- Data feedback and alarm parameters
- “Closed loop” self-mapping or “on the fly mapping” real time tuning
- Diagnostic and data logging
- Multiple ignition coils with crank and cam triggers
- Ignition startup tables
- Acceleration rate fuel maps
- Operates idle air control motors for engines with superchargers and large camshafts
- Fires fuel injectors and ignition coils up to 16,000 rpm

This system is superior because of its processing speed, extreme reliability and durability.

The ECU’S are enclosed in a 6061 aluminum “O” ringed case and available in three models, 1.1, 1.5, and 1.9.

The Wiring Harnesses are custom made with NTFR heat shrink with TAT transitions. We also offer mill-spec harnesses.

Intake Manifolds are single plane, port injected. Custom intakes are available.

Injectors: various high and low impedance injector sizes are available.

Throttle Bodies are billet 1000 & 2000 cfm 4 barrel. Throttle position sensors and IAC motors are available. They can be progressive or one to one linkage.

TBI (Throttle Body Injector) are 700 or 900 cfm 4 barrel... Throttle position sensors and IAC motors are available. They can be progressive or one to one linkage. Various injector sizes are available. They can be aluminum or polished.

Fuel Rails are billet with billet hold down brackets and threaded for o-ring fittings.

Injector Plates are billet with angled injector positioning and are available in 8 or 16 injectors and in high polished form.

The fuel maps are graphically and 3-dimensionally viewed for editing. There are 40 columns of rpm break points and 20 rows of load breakpoints. 32 adjustable Breakpoints per axis enable custom designed fuel maps for engine tuning. Interpolation allows for smooth fuel curves. 800 “cells” compose a complete fuel map for every load and RPM range, supercharged or naturally aspirated. There are several maps which layer and interpolate between each other:
- Injection Phasing is the angular position during the engine cycle when injectors will fire.
- Injector BIAS controls when a second set of injectors will phase.
- Injector response compensates time for battery voltage.
- Sequentially “Trimming” each cylinder enables specific fuel consumption per cylinder.
- Fuel rev limiter rpms may be chosen.
- Cranking pulse times can be selected.
- Main Fuel maps may be compensated by barometric, altitude, water temperature, air temperature, and fuel temperature tables.
- Acceleration/ de-acceleration fuel maps allow enhanced throttle response.
- There are twenty fuel & compensation maps that interpolate between each other.

Ignition systems include “wasted spark,” which fires on power and exhaust stroke, Capacitive Discharge Ignition with multiple channels and power stages, multiple coils and standard single coil. All of the systems are controlled with the Ignition maps. Cam and Crank timing are sensed thru magnetic and hall-effect pickups. These systems can be stand-alone or integrated.

Knock control maps can retard timing when detonation is present. The amount of retard can be edited.

The Lambda tables are used for multiple sensor constants and corrections in closed loop operation. The system’s software has the unique ability to apply a self-learned lambda table to the fuel map to optimize the map across the whole operating range. The system operates multiple sensors at multiple breakpoints at extremely fast processing speeds.

The Idle speed can be programmed with an IAC motor. This controls the idle rpm and maintains that rpm thru water temperature and time tables.

Sensor Calibration Constants allow for exact sensor data. Sensors are temperatures, pressures, crank, cam, TPS, EGT, and lambda.

Up to 2 MB of Data logging and default values are recorded and are viewable internally. This feature ensures the engine operating within its parameters such as, voltage, air temperature, water temperature, oil temperature, water pressure, oil pressure, fuel pressure, ECU temperature, knock sensing, Lambda, airbox pressure, throttle position, hour meter, and excessive rpm. Diagnostics can be viewed for error codes of sensors and pick ups and minimum / maximums sensor values.