LOTUS EMIRA (2022 → PRESENT) 3.5L 2GR-FE SUPERCHARGED V6

STAGE 1 / STAGE 2 / STAGE 2+ ECU TUNING PACKAGE INCLUDING ECU UNLOCK SERVICE

AMT Tuning’s ECU calibration package for the Lotus Emira 3.5L 2GR-FE supercharged V6 is designed to improve power delivery, throttle response, torque and overall drivability while retaining the factory protection strategies required for reliable operation.

This package includes the ECU unlock service required before the factory ECU can be calibrated.

The ECU must be removed from the vehicle and shipped to AMT Tuning for the initial unlock and programming process.

VEHICLE APPLICATION / SPECIFICATIONS

• Vehicle: Lotus Emira
• Production Years: 2022 → Present
• Engine: Toyota 2GR-FE
• Displacement: 3.5L
• Configuration: Supercharged V6
• Factory Output: Approximately 400 HP / 310 lb-ft
• ECU Manufacturer: EFI
• ECU Types: T4E / T6E
• ECU Programming Method: Bench programming
• ECU Removal Required: Yes

PERFORMANCE SPECIFICATIONS

Calibration	Approx. Power	Approx. Torque
Stock	400 HP	310 lb-ft
Stage 1	420 HP	325 lb-ft
Stage 2	440 HP	340 lb-ft
Stage 2+	Pulley / hardware dependent	Pulley / hardware dependent

Actual output varies depending on fuel quality, vehicle condition, installed hardware, pulley diameter, ambient conditions and testing method.

Stage 2 and Stage 2+ vehicles are calibrated according to the actual hardware installed on the vehicle rather than using one universal calibration.

AVAILABLE ECU CALIBRATIONS

STAGE 1 — PERFORMANCE ECU SOFTWARE

Stage 1 is designed for stock vehicles and Emiras with mild bolt-on modifications while retaining the factory supercharger pulley.

Suitable configurations include:

• Completely stock vehicle
• Cold-air intake or upgraded intake
• Performance panel filter
• Cat-back exhaust
• Factory supercharger pulley

Stage 1 Calibration Includes

• Optimized ignition strategy
• Optimized fueling
• Improved torque control
• Improved throttle response
• Stronger mid-range performance
• Improved top-end power delivery
• Refined pedal mapping
• OEM-style part-throttle drivability
• Factory knock, lambda and temperature protection strategies retained

Fuel

Stage 1 can be calibrated for:

• 91 AKI
• 93 AKI
• 95 RON
• 98 RON

The calibration will be prepared specifically for the fuel selected at ordering.

Optional Pops & Bangs

Stage 1 with Pops & Bangs is available for vehicles equipped with an appropriate performance exhaust system.

STAGE 2 — HEADERS / FULL BOLT-ON CALIBRATION

Stage 2 is designed for vehicles with increased airflow and exhaust modifications while retaining the factory supercharger pulley.

Typical Stage 2 hardware includes:

• Performance headers
• High-flow or catless headers
• Performance cat-back exhaust
• Upgraded cold-air intake
• Other compatible bolt-on airflow modifications
• Factory supercharger pulley

Stage 2 Calibration Includes

• Stage 1 calibration features
• Calibration adjusted for increased engine airflow
• Revised fueling
• Revised ignition strategy
• Revised torque management
• Revised load modeling
• Calibration matched to the installed intake and exhaust hardware
• Rear O2 / DECAT calibration available for appropriate off-road applications

DECAT / Rear O2

Rear O2 / DECAT calibration is included with Stage 2 where required for the customer's hardware configuration.

Stage 2 vehicles using catless components are intended for off-road / motorsport use where permitted.

STAGE 2+ — SUPERCHARGER PULLEY CALIBRATION

Stage 2+ is specifically designed for vehicles equipped with a smaller supercharger pulley.

This calibration is required when increased supercharger speed and boost are introduced through a pulley upgrade.

Stage 2+ includes all Stage 2 calibration changes plus additional calibration specifically for the pulley configuration.

Stage 2+ Hardware

Typical configuration:

• Smaller supercharger pulley
• Performance intake
• Performance exhaust
• Headers or upgraded exhaust manifolds where applicable
• Appropriate belt for the selected pulley
• Proper cooling system condition

Stage 2+ Calibration Includes

• Calibration matched to the exact supercharger pulley
• Revised engine load modeling
• Revised ignition strategy
• Revised fueling
• Revised torque management
• Compensation for increased supercharger speed and airflow
• Factory knock and temperature protection strategies retained and recalibrated as required

Pulley Information Required

When ordering Stage 2+, please provide:

• Pulley manufacturer
• Exact pulley diameter
• Percentage reduction if known
• Current intake system
• Header / exhaust configuration
• Catalyst configuration
• Fuel grade

The pulley size must be provided before calibration so the software can be prepared for the actual hardware installed on the vehicle.

UPGRADING FROM STAGE 2 TO STAGE 2+

Customers already running an AMT Stage 2 calibration do not need to purchase the complete tuning package again when adding a supercharger pulley.

When the pulley is installed, the existing Stage 2 calibration can be upgraded to Stage 2+.

The Stage 2 → Stage 2+ calibration upgrade is based on the difference between the two tuning levels.

This allows customers to tune their vehicle in stages without having to purchase the entire package again.

CUSTOM REMOTE / DATALOG TUNING

Our Custom Tuning package is intended for advanced vehicle configurations requiring additional logging, analysis and calibration development beyond the normal Stage 1, Stage 2 or Stage 2+ packages.

The Custom Tuning package includes an additional ECU logging device.

Typical applications may include:

• Advanced pulley combinations
• Water / methanol injection
• Unusual hardware combinations
• Vehicles requiring extensive datalog analysis
• Dedicated motorsport builds
• Configurations requiring multiple calibration revisions

A normal intake / exhaust / header vehicle does not require Custom Tuning.

A normal supercharger pulley configuration can be supported with Stage 2+.

Please contact AMT Tuning before ordering Custom Tuning if you are unsure whether your vehicle requires this service.

HARDWARE REQUIREMENTS

Stage 1

Required:

• Vehicle in proper mechanical condition
• Premium fuel appropriate for the selected calibration

Optional:

• Performance intake
• High-flow filter
• Cat-back exhaust

Factory supercharger pulley is retained.

Stage 2

Designed for vehicles with additional airflow modifications.

Typical hardware:

• Cold-air intake
• Performance exhaust
• Performance headers
• High-flow or catless exhaust components where applicable

Factory supercharger pulley is retained.

Stage 2+

Designed for vehicles equipped with a smaller supercharger pulley.

Typical hardware:

• Stage 2 supporting modifications
• Smaller supercharger pulley
• Correct drive belt
• Proper cooling system condition
• Premium fuel appropriate for the selected calibration

The exact pulley size must be supplied when ordering.

ECU LOCATION & REMOVAL — 3.5L V6

The engine ECU on the Lotus Emira 3.5L Supercharged V6 is located on the left-hand side of the rear engine compartment, near the airbox / intake assembly.

The ECU is secured to its mounting bracket and uses three main electrical connectors.

Access may be possible from the top of the engine compartment after removing the appropriate engine-bay trim. On some vehicles, access to the ECU mounting hardware may also be easier through the left rear wheel-arch area.

Before removing the ECU:

• Switch the ignition fully OFF and keep the vehicle key away from the vehicle.
• Allow the vehicle electrical systems to shut down before disconnecting the ECU.
• Do not pull on the wiring harnesses.
• Release the ECU connector locking mechanisms carefully before removing the plugs.
• Take a clear photo of the ECU label before shipping it to AMT Tuning.
• If you are not comfortable removing the ECU, have the work performed by a qualified technician.

The ECU does not need to be opened by the customer. Send the complete, unopened ECU to AMT Tuning.

ECU UNLOCK SERVICE

The Lotus Emira factory ECU requires an unlock procedure before performance calibration can be installed.

This tuning package includes the required ECU unlock service.

The ECU must be removed from the vehicle and shipped to AMT Tuning.

ECU SHIPPING PROCESS

1. Remove the ECU

The ECU must be removed from the vehicle using the correct removal procedure.

If you are unfamiliar with ECU removal, we recommend having the work performed by a qualified technician.

2. Package the ECU Carefully

Protect the ECU with sufficient padding and place it in a strong shipping box.

The ECU must not be allowed to move freely inside the package.

3. Ship the ECU to AMT Tuning

Ship to:

AMT Tuning Ltd
6 – 25 Edilcan Dr.
Concord, Ontario
L4K 3S4
Canada

We recommend using a reliable tracked carrier such as UPS, FedEx or DHL.

The customer is responsible for shipping costs and any applicable duties, taxes or brokerage charges.

4. ECU Inspection & Unlock

Once received, the ECU is inspected and processed through the required unlock procedure.

We do not recommend opening, modifying or attempting an unsupported unlock procedure on the ECU before sending it to AMT.

Previously opened or modified ECUs must be disclosed before shipment because previous work may affect whether the ECU can be processed.

5. Calibration & Programming

After the unlock procedure is completed, the ECU is programmed with the selected AMT calibration:

• Stage 1
• Stage 1 + Pops & Bangs
• Stage 2
• Stage 2 + Pops & Bangs
• Stage 2+
• Stage 2+ + Pops & Bangs
• Custom Tuning

The calibration is matched to the information supplied with the order.

6. Return & Reinstallation

Once programming is complete, the ECU is prepared for return shipment.

The customer or installer reinstalls the ECU and performs the appropriate vehicle checks before operation.

TURNAROUND

Bench programming itself can normally be completed once the ECU reaches the programming stage.

Total turnaround depends on:

• ECU unlock queue
• Current workload
• ECU condition
• Shipping time
• Hardware configuration
• Whether additional calibration development is required

Please do not schedule vehicle work around a fixed completion date unless a turnaround has been specifically confirmed by AMT Tuning.

ORDERING INFORMATION

Please provide the following when placing your order:

• VIN
• Model year
• Transmission:
  • 6-speed manual
  • 6-speed IPS automatic
• Current intake system
• Exhaust system
• Header configuration
• Catalyst configuration
• Fuel grade
• Current vehicle modifications

For Stage 2+ also provide:

• Supercharger pulley manufacturer
• Exact pulley diameter
• Percentage reduction if known

The more accurate the vehicle information supplied at ordering, the more accurately we can prepare the calibration for the vehicle.

FUEL OPTIONS

Available calibration fuel selections:

• 91 AKI
• 93 AKI
• 95 RON
• 98 RON

The ECU calibration will be developed for the selected fuel grade.

Do not select a higher fuel grade based solely on the use of an octane booster.

If 91 AKI is the highest consistently available pump fuel in your area, select the 91 AKI calibration.

IMPORTANT INFORMATION

Stage 2, Stage 2+, Pops & Bangs and emissions-related calibration options may not be legal for road use in all jurisdictions.

Any calibration intended for off-road or motorsport use must be used only where legally permitted.

Customers are responsible for ensuring that their vehicle complies with applicable local emissions, noise and road-use regulations.

NEED HELP SELECTING YOUR TUNE?

If your Emira is stock or has only an intake / cat-back exhaust:

Choose Stage 1.

If your Emira has headers, a high-flow or catless exhaust and related bolt-on modifications while retaining the factory supercharger pulley:

Choose Stage 2.

If your Emira has a smaller supercharger pulley:

Choose Stage 2+.

If your vehicle uses water/methanol injection or has an advanced custom hardware configuration:

Contact AMT Tuning before ordering so we can determine whether Custom Remote / Datalog Tuning is required.

AMT Tuning Team
sales@amttuning.com
1-877-469-9440