Motorsport features
Motorsport features
Whether you’re chasing lap records, fine-tuning on the dyno, or battling for the podium, Link puts ultimate control in your hands.
Link ECUs are engineered for victory—combining razor-sharp performance control with uncompromising engine protection. From the split-second precision of a drag launch to the relentless demands of endurance racing, these advanced features keep your engine at peak output while safeguarding it against the limits.
With competition in mind, some of the following motorsport-specific features could be vital for you.
"My naturally aspirated 3-rotor RX7 using a link ECU and three CAN Lambdas allows for individual cylinder tuning via exhaust gas temperatures. Individual cylinder trimming means we can make as much power out of the engine as possible! The car is super reliable, fast and responsive" Andy Duffin, 3 Rotor Racing.
Most Link ECUs are capable of the following motorsport features, as long as the car set-up supports them.
Power Delivery
Fuel Management
High-resolution, load- and RPM-based fuel mapping with trims for temperature, gear, and more—supporting precise injector and fuel pressure control for power and longevity. (Also see Flex Fuel & wideband control below.)
Flex Fuel Capability
Blend maps seamlessly when switching fuels (e.g., pump gas ↔ E85) for consistent performance and protection across fuel types. (G4X platform highlights Flex Fuel as a core capability.)'
Throttle Response Tuning
Shape pedal-to-throttle behaviour (especially useful off-road or in drift) for smoother modulation on loose surfaces or razor-sharp response on circuit.
Shift, turbo and response
Turbocharger / Supercharger Control & Boost Control
Closed-loop boost control with multiple 3D tables, trims by gear, IAT, coolant temp, and external high/low switches. Supports advanced strategies like boost-by-gear/RPM/speed for precise, repeatable torque delivery.
Throttle Response Tuning
Fine-tune electronic throttle sensitivity for sharper response in drifting or smoother delivery in difficult condition
Variable Valve Timing
Full ECU control of VVT for optimized torque and power across the rev range.
Gear-Shift Control (Flat-Shift & Auto-Blip)
Enables clutchless upshifts via timed or closed-loop ignition cut (sequential or dog boxes) and downshift auto-blip via e-throttle or blip solenoid for quicker, safer shifts.
Anti-Lag System (ALS)
Keeps the turbo spooled during off-throttle moments to slash lag for rally, drift, and drag applications (available on all Link ECUs except Atom). Expect aggressive response—and understand increased turbo wear is normal for ALS setups.
Traction & Launch
Traction control
Traction control helps limit tire slip in acceleration on slippery surfaces. Traditionally, drivers have had to feather the gas pedal to prevent the drive wheels from spinning wildly on slippery pavement or under extremely heavy acceleration. Aftermarket ECU’s however, can be programmed to control / limit power delivery for the driver, eliminating wheel slip and helping the vehicle drive forwards when the throttle is open.
Traction control actively limits wheel-spin by trimming spark or fuel, closing the throttle (with e-throttle), or reducing boost on turbo cars—so you can put power down on variable surfaces without feathering the throttle.
An experienced Link ECU tuner will be able to assist you in implementing these functions to give your vehicle the traction it needs in varying surface conditions.
Launch control
Eliminating wheel spin and wheel hop, maximizing traction and power off the line, and building boost before launch in a forced induction car are all critical components in the launch of any vehicle.
Hold a target launch RPM at full throttle to minimise wheel-spin and wheel hop, build boost in turbo setups, and deliver repeatable, hard launches
If you want more consistent launches without wheel spin, or have a boosted car and you wish to build boost before you take off for more powerful launches, then launch control would be very useful for you.
Nitrous Control
Integrated safety-focused nitrous management, fully mapped for maximum performance.
Sensors, Safety & Data
Data Logging
Record engine and chassis channels during dyno and track sessions, then analyse in PC Link. Typical channels include RPM, lambda, ignition, speed, temps, boost and more. (The current page details onboard logging and PC Link analysis; G4X highlights up to 512 MB logging with up to 250 channels at high sample rates.)
Wideband O₂ Sensor Support
Closed-loop lambda with wideband input provides precise AFR control for maximum power and reliability under varying conditions.
Voltage & System Monitoring
Keep electricals stable for consistent fuel pump and ignition performance; set alarms/strategies for low voltage scenarios.
Engine Protection and Optimization
Cooling Fan Control
Command fans via ECU logic to maintain target temperatures during gridding, queuing, or back-to-back passes—critical for heat-soaked drag and time-attack efforts.
Altitude Compensation
Automatically adjusts fuelling/ignition for changing air density to maintain performance and safety when climbing to higher elevations.
Idle Control
Stable cold-start and low-speed operation for better drivability and recovery after big electrical or cooling loads.
Individual Cylinder Tuning
Adjust fueling and ignition per cylinder to account for distribution, temperature, or hardware differences—improving power consistency and reducing risk under sustained load.
Ignition Timing Control
Fine-tune timing vs. load, RPM, AFR, and IAT to maximise torque while maintaining knock safety. Per-cylinder trims help balance combustion across cylinders for power and durability.'
Motorsport Build Stories using G5
Motorsport Build Stories using G4X
The product page of each Link ECU lists the features available to make selecting the appropriate ECU for your application easier. For more tuning advice to make the most out of these features in your car, contact an authorized Link ECU dealer.