IMPORTANT CLARIFICATION

EMS test stand validation is not a complete operational break-in.
This process confirms workmanship and assembly integrity only.

Final ring seating, load conditioning, and operational break-in must still be completed by the installer/end user in accordance with the EMS Break-In Policy.

Failure to complete required break-in procedures may affect warranty eligibility.

Warranty begins the day engine is shipped or picked up by customer.

Signing for a shipment without noting visible damage confirms that the engine was received in acceptable condition.

EMS cannot be responsible for shipping damage that is not documented at the time of delivery.

We strongly recommend inspecting all freight deliveries thoroughly prior to acceptance.

EMS PRE-SHIPMENT CRAFTSMANSHIP VALIDATION
(Sealed Engine Program Only)

Each EMS Sealed Engine is individually validated prior to shipment. This in-house validation cycle is performed to confirm craftsmanship, mechanical integrity, and assembly quality before the engine leaves our facility.

During Validation:

  • Engine is brought to full operating temperature
  • Engine is operated through variable RPM ranges
  • Controlled throttle load is applied
  • Oil pressure is verified
  • Fluid stability is confirmed
  • Engine is inspected for leaks
  • Mechanical integrity is evaluated

Conventional oil is used during this validation process.

Following validation, engine oil and filter are replaced prior to shipment.

This process confirms workmanship only and does not replace customer break-in requirements.

⚠️ Note for Mazda Block Engines: If your engine uses a Mazda (MZR) block and you’re running a stock-style turbo, the block must be ground (nub removed) prior to dressing, and a custom oil drain line is required. Contact EMS if you have questions about this process before installation.

INITIAL BREAK-IN OIL & FILTER REQUIREMENTS
(Mandatory for Warranty Compliance)

⚠️ EMS 2.3L ENGINES REQUIRE 7 QUARTS OF OIL.

FIRST 500 MILES

Approved Oil Requirements

  • Conventional (non-synthetic) engine oil is required
  • Break-in oil is acceptable
  • Synthetic oil is not permitted during the first 500 miles
  • Oil viscosity must fall within the 5W-30 to 10W-40 range unless otherwise specified by EMS

Oil Filter Requirement
Required Filter: MOTORCRAFT FL400S

  • Motorcraft FL400S oil filter is required
  • Non-OEM or aftermarket filters are not permitted during the break-in period

500-Mile Service
At 500 miles:

  • Replace oil and filter
  • Use Motorcraft FL400S filter
  • Continue using approved oil as directed by EMS
  • Retain all service documentation

INITIAL STARTUP DATA LOG REQUIREMENT
(Mandatory)

A startup data log must be completed before normal vehicle operation.

⚠️ DIRECT INJECTOR CHECK — REQUIRED BEFORE STARTUP
If the engine is being installed following any detonation event or AFR (air/fuel ratio) related issue, the direct injectors (DI) must be inspected, serviced, or replaced before initial startup. Faulty or contaminated injectors can cause lean conditions or detonation that will immediately damage a freshly built engine. The startup log reviewed by Ryan will help catch injector-related issues — however, do not rely solely on the log. Verify injector condition prior to startup, especially if any prior detonation or fueling problems have been present.

When To Log

  • Immediately after initial startup
  • After verifying proper fluid levels
  • Before normal driving

Recommended Parameters

  • Air Fuel Ratio (AFR)
  • Low Side Fuel Pressure
  • High Side Fuel Pressure (if applicable)
  • Ignition Timing
  • Knock Activity
  • Coolant Temperature
  • Engine RPM
  • MAP / Boost Pressure
  • Oil Pressure (if equipped)

Log Procedure

  • Record 5-10 minutes minimum
  • Monitor stable idle
  • Vary RPM between idle and approximately 2,500 RPM
  • Perform light throttle transitions
  • No wide open throttle
  • Remain at or below wastegate spring pressure

Log Submission Requirements

  • Startup log must be submitted to EMS within 24 hours of initial engine start
  • Include customer name
  • Include order number
  • Include engine configuration
  • Include vehicle platform
  • Include tuner information if applicable

Submit Logs To: sales@emsinc-tn.com

EMS reserves the right to request additional logs or documentation before approving continued operation.

Failure to submit startup data may affect warranty eligibility.

INITIAL 0-500 MILE BREAK-IN PROCEDURE
(Mandatory)

The first 500 miles are critical for ring seating and bearing stabilization.

RPM Limits

  • Do not exceed 4,500 RPM
  • Avoid sustained high RPM operation
  • Vary RPM frequently

Boost & Load Limits

  • No wide open throttle
  • Boost up to wastegate spring pressure (~10 psi) is acceptable and beneficial for ring seating — no wide open throttle
  • Avoid sustained boost events

Controlled moderate load with varying throttle input is recommended.

Driving Restrictions
During the first 500 miles:

  • Avoid extended steady highway cruising
  • Do not lug the engine under load
  • No hard launches
  • No racing or competitive driving
  • No dyno tuning
  • Practice engine braking as much as possible — downshift through gears when coming to a stop to help seat the rings

500-Mile Service
At 500 miles:

  • Replace oil and filter
  • Inspect engine for leaks
  • Inspect engine for abnormal conditions

Full load operation and final tuning may proceed after completion of the 500-mile service.

WARRANTY COMPLIANCE

Compliance with Sections 2, 3, and 4 is required for warranty consideration.

Required For Warranty Review
☐ Proper break-in oil usage
☐ Proper oil filter usage
☐ Startup log completed
☐ Startup log submitted
☐ RPM limits followed
☐ Boost limits followed
☐ 500-mile service completed
☐ Service documentation retained

Warranty May Be Affected By:

  • Missing startup logs
  • Excessive RPM during break-in
  • Excessive boost during break-in
  • Improper oil usage
  • Improper filter usage
  • Improper installation
  • Mechanical negligence
  • Detonation
  • Lean operation during startup

Each warranty claim is reviewed individually.

Even in situations where warranty coverage cannot be approved, EMS remains committed to supporting our customers.

Customer Name: _______________
Order Number: _______________
Engine Serial Number: _______________
Vehicle Platform: _______________
Startup Log Submitted: _______________
500-Mile Service Date: _______________
Customer Signature: _______________
Date: _______________

ENGINEERED MOTORSPORT SOLUTIONS INC.
ENGINEERED TO WIN
www.emsinc-tn.com | (423) 500-4901