Features

Spitronics Mercury3 has just been released. Now with Bootloader, no programmer needed! Upgrades to firmware from 3.6 to 3.7 with new software features to follow shortly, as well as updates to this site regarding the product.

Mercury3 ECU Features

Note: Some features may be in the development process in the near future. The hardware already has the capability for this development. Also note that not all features may be included on the same ECU, as there is a limited number of drivers available. Some hardware classes may not include certain features due to price constraints. See the selection chart for the ability of the different classes.

Fuel Delivery
· Accurate fuel amount and injection timing give better performance and fuel consumption due to constant atomization on each cylinder.
· Injection methods such as Batch, Split Batch, Split Sequential, and Full Sequential are offered with the Mercury3.
· Different Tuning options, such as a graph or matrix, can be selected.
· All graphs or matrix data are interpolated to smooth fuel calculation accuracy for the best performance throughout the operating ranges.
· Fuel is calculated with MAP or TPS sensor signals versus RPM or a combination of the two. This will accommodate most engines ranging from street to racing and from economy to performance.
· Other sensors that are used to alter the fuel mixture are Water, Air, Altitude, Lambda, Battery Volts, Fuel Pressure, and throttle response from the driver.
· Fuel injection timing is adjustable on gear-type crank angle sensors as low as 12 pulses per revolution. This will result in a 30° angle resolution or smaller.
· Adjustable MAP sensor, reading angle for multiple throttle body systems.
· Dual injectors can be used in two methods. Staged injectors, namely the Ratio Adjust or Graph Fazed method.
· Fuel pressure control can be done with pressure compensation maps.
· Injector trimming up to 8 injectors can be used for Full Sequential Injection.
· Fuel enrichment can be adjusted during Launch, RapidFire, or retard functions.

Ignition Spark & Timing
· The Mercury3 can manage Distributors, Wasted Spark coil packs, Wasted Spark COP coils or Full Sequential spark systems.
· Mercury3 uses standard automotive coil packs found on engines. No need to change them.
· Most Smart Coils with built-in drivers can be connected directly.
· Basic Coils are connected via the Mercury Coil drivers, which are sold separately in different versions. Coil drivers can be stacked to accommodate V12 systems and V8 Dual Coil engines. The latter has 16 coils.
· The Mercury3 high-performance firing module ensures a high-quality spark adequate to ignite most mixtures of different fuels. It also has built-in protection against overload conditions.
· Mercury3 has very accurate ignition timing, especially with the gear-type triggers.
· Timing is calculated with MAP or TPS sensor signals versus RPM or a combination of the two. This will accommodate most engines ranging from street to racing.
· Other sensors that are used to alter the ignition timing are water, air, and altitude.
· Battery Volts is used to compensate for coil charge time.

Sensors
· Mercury3 can use most standard sensors on the engine – No need to do modifications on distributors or converter boards.
· Custom Bolt-On Timing Gears may be used for older engines that run carburetors or engines with incorrect setups. Gear-type triggers do make timing more accurate and responsive during blip conditions. This is the preferred method for racing applications.
· Sensors can be calibrated to accommodate the different types found on the engines.

Idle Control & Cold Start – These functions will ease the starting of a cold engine and keep the RPM’s constant when air conditioners or automatic transmissions draw power from the engine. Idle control is included on board for one and two-wire idle valves. The Spitronics stepper control units can be connected to control quad and bipolar stepper motors.

Launch Control – This feature will increase boost pressure during pull-off to eliminate Turbo Lag. Various methods are available to activate launch-like buttons, clutch switches, TPS position, etc. It can also do a delayed launch recovery to improve traction.

Anti-Lag Control – This feature will increase boost pressure during racing to eliminate Turbo Lag on corners. Newer firmware has an output option to activate EGR valves to bypass turbo pressure to the exhaust. This will help with engine braking in corners and to keep boost pressure high for accelerating out of the corner.

Flat-shift Control – This feature will momentarily cut engine power during wide-open throttle to assist in manual gear shifting.

RapidFire – This launch feature will make a machine gun sound in the exhaust, which is desired by the drifting crowd. The frequency is adjustable, and the amount of flames displayed at the outlet.

General Purpose Outputs – Up to 10 GP drivers can be used if there are enough available. They can be used for injectors, fan control, shift light, Aircon Cut-Out on Pull-Off, or Up-Hill, etc.

Standard Harness – No need to keep several harnesses in stock for different engines. Level 2 harnesses will include relays and fuses that will ease installation and save time. All the input wiring harnesses use screened cables for neatness of installation and to prevent electromagnetic interference, which may cause erratic behavior of the ECU.

Compact Electronics – This will make the ECU easy to install under the dashboard, as it takes very little space.

Complete Firmware for Most Engines.

Cost-Effective – No need to buy expensive systems as all the necessary features are included with the ECU.

Rotary Systems – The 2 & 3 rotor engines are covered by this Mercury2. 4 & 6 Rotors can be done as well.

External Map Sensor – Easy to change between 1Bar, 2.5Bar, 3Bar, 4Bar & custom configurations. External sensors are used to reduce the delay in the vacuum signal. It makes the ECU more versatile to adapt to standard MAP sensors found on engines.

Altitude Compensation – This feature is important as the ECU will automatically compensate for differences in pressure.

Fuel Pressure control – This will control the speed of the fuel pump, which eliminates the need for the mechanical fuel pressure regulator and return fuel line. It also compensates injector time versus fuel pressure to ensure accurate mixtures during blip conditions.

Standard Tuning Software – All the products use the same software. The features that are not used or allowed in the firmware will be blanked out.

Easy DIY Instructions – Save money on installation if you are a person who is up to the challenge.

Start-Up Maps included – This will make for easy start-up & tuning with the help of a Lambda sensor.

User-friendly tuning software, which is extensively explained in the manual.

The tuning map can be locked to prevent tampering. Useful for engine builders who give guarantees.

No Dyno Required – Tune your own vehicle with the help of the data logger in the software and save money. Just following the instructions in the manual carefully.

(Note that the last five points are for the person who is handy with tools and understands wiring and the operation of an engine. If you are not sure, download the software, the map, the manual, and the drawing, and experiment with it first. It’s free of charge!)