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Megajolt Engine management systems

We are now pleased to be able to offer the latest Megajolt V4 systems. If you can't find a system for your engine please get in touch with us or use the configurator below to create yourself a bespoke kit.

Megajolt ECU V4

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The Megajolt Lite Jr. (MJLJr) is a fully configurable, stand-alone 3D ignition controller designed to control ignition via one of our EDIS kits. Suitable for 4, 6 or 8 cylinder engines.

Our systems are fully built and include connector pre-wired with loom tails ready for connecting into your vehicle. Also included are full instructions and RS232 cable to connect to your PC.

10 x 10 ignition map, with full linear interpolation between values
Load axis calibrated by on-board Manifold Pressure (MAP) sensor or external Throttle Position Sensor (TPS)
Four user-defined output switches, triggered on RPM or load
'Shift light' output- for driving a dash-mounted shift light
External Rev-Limit trigger output
Modern, easy to use, and customizable Windows-based configuration software
- Load, modify and save Ignition Configuration
- View, log and interact with engine runtime data
- Interactively visualize and tune ignition map
Dual, on-the-fly switchable ignition configuration
Configurable cranking RPM advance

For more information on the Megajolt ECU:

Documentation and How-To:

http://www.autosportlabs.net

Community Forums:

http://www.autosportlabs.org

Hard cut rev limiter

Hard cut rev limiter board for Megajolt systems

The megajolt ECU includes an ignition retard rev limiter as standard. The hard cut module works with the existing soft rev-limit and fits inside the ECU case. When installed the soft-limit of the ECU automatically retards ignition timing to zero degrees 100 RPM before the hard limit activation point. This makes for a progressive application as you reach the rev limit.

Tacho Driver

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Tacho driver module for coil-driven rev counters

Suitable for Megasquirt, Megajolt and many other ECUs the tacho driver allows you to retain your existing coil driven rev counter. If you have a recent rev counter accepts the 5 volt output of most ECUs then you do not need one of these.

For 4-cylinder, wasted spark installations or two-cylinder independent coils use the 2-input version.

For 6-cylinder wasted spark or 3-cylinder triple coil installations use the 3-input version.
For 8-cylinder wasted spark or 4 cylinder coil-per cylinder setups use the 4-input version.

USB-serial adaptors

USB-serial adaptor for computers lacking a serial port.

Many new laptops and PCs do not come with a serial port. These adaptors plug into a USB socket and allow you to connect up to your ECU.

Many cheaper adaptors give problems, these adaptors use a premium FTDI chipset and tested to work with Megajolt, Megasquirt and Emerald ECUs.

Megajolt mounting brackets

Anodised alloy mounting flanges to fit megajolt V4 ECUs.