McLaren 765LT ECU Tuning – Stage 1 & Stage 2

McLaren 765LT ECU Tuning – Stage 1 & Stage 2

Unlock the extreme performance potential of your McLaren 765LT with Momentum Motorsports’ precision-developed ECU tuning packages. Both stages deliver dramatic increases in horsepower, torque, throttle response, and overall driving excitement—while maintaining safe parameters for the M840T twin-turbo V8 platform.

Stage 1 Tune

+100 HP / +100 TQ (Approx.)

Stage 1 provides a substantial power gain with no hardware modifications required. Ideal for owners who want significant performance while keeping all factory components intact.

Features:

• No hardware upgrades required

• Strong, linear gains throughout the rev range

• Sharper throttle response & faster turbo spool

• Smooth, OEM-like drivability with a much harder punch

• Optimized boost, fuel, ignition, and torque control

• Top speed limiter removed

Stage 2 Tune

+150 HP / +160 TQ (Approx.)

Stage 2 is engineered for owners seeking the most aggressive performance that the stock turbos can safely support. With optimized boost targets and airflow management, Stage 2 delivers harder acceleration and noticeably stronger top-end power.

Requirements:

• High-flow race downpipes (mandatory)

  • Reduces backpressure

  • Improves turbo efficiency

  • Lowers exhaust gas temperatures

Benefits:

• Larger peak gains across the entire powerband

• More responsive throttle mapping

• Higher sustained boost pressure

• More explosive acceleration at mid and high RPM

Optional Flame Feature:

• Flames available upon request for Stage 2 clients

  • Aggressive overrun tuning for visual flare

  • For off-road / competition use only

Recommended Upgrade: Turbo Inlets

For both Stage 1 & Stage 2—especially Stage 2—we highly recommend upgrading the OEM plastic turbo inlets, which are restrictive and prone to collapse under elevated boost levels.

Upgraded Inlets Provide:

• Increased airflow to the turbos

• Lower pressure drop

• Cooler, more consistent charge temperatures

• Improved long-term reliability

ECU Shipping Requirement

To ensure perfect calibration and data integrity, your ECU must be shipped to Momentum Motorsports for tuning. This process guarantees:

• Proper file extraction

• Safe and accurate flashing

• The highest-quality performance results

Why Choose Momentum Motorsports?

• Dyno-proven calibrations for the McLaren M840T

• Smooth OEM-like drivability with supercar-level gains

• Reliable tuning strategies developed in-house

• Trusted by McLaren owners worldwide