PERFORMANCE TUNING EXCELLENCE: THE TTS MASTERTUNE ADVANTAGE
To our Valued Customers,
When you invest in performance modifications for your Harley-Davidson—whether it’s a high-flow exhaust, a performance air cleaner, or a high-lift camshaft—the factory “brain” (ECM) no longer knows how to correctly manage your engine. To unlock the full potential of your investment, we utilize the TTS MasterTune system.
This document explains why we have chosen the most comprehensive and technically superior tuning device on the market for your motorcycle.
1. A Legacy of Performance
TTS is not just an aftermarket brand; they are the original architects of Harley-Davidson EFI tuning.
- The Original “SERT”: From 2002 to 2008, TTS developed and manufactured the Screamin’ Eagle Race Tuner (SERT) for Harley-Davidson.
- Unrestricted Access: While later factory tuners became “restricted” to meet corporate requirements, TTS released MasterTune—a professional version of that same technology that provides deeper, uncensored access to your bike’s ECM.
2. The Data Rate Advantage: Precision at Every RPM
Data is the foundation of a perfect tune. If a tuning tool samples data too slowly, it “misses” critical engine events. As shown in the Delphi Speed-Density EFI Performance Dashboard, TTS MasterTune significantly outperforms standard factory tools:
| Model Years | Standard HD Data Rate | TTS MasterTune Rate | The TTS Advantage |
|---|---|---|---|
| 2002–2011 (J1850) | 1.5 Frames/Sec | 7.0 Frames/Sec | 4.6x Faster |
| 2012–2016 (CAN 6-Pin) | 6.5 Frames/Sec | 35.0 Frames/Sec | 5.3x Faster |
| 2021 (All) | 4.0 Frames/Sec | 35.0 Frames/Sec | 8.7x Faster |
| 2023+ (Generic Data) | 1.5 Frames/Sec | 9.5 Frames/Sec | 6.3x Faster |
Why this matters: At 3,000 RPM, standard tools may only sample 6% to 24% of what your engine is doing. TTS MasterTune samples up to 240% in specific modes like “Cam Tune.” This eliminates guesswork and ensures your fuel and spark timing are perfect for your specific riding style.
3. Comprehensive Tuning Features
MasterTune doesn’t just “trick” the computer; it reprograms it.
- No Hardware Left Behind: We flash the ECM directly. There are no extra modules to fail, vibrate loose, or clutter your wiring harness.
- Flight Recorder: We can record 8 to 10 hours of high-speed data during a real-world test ride, capturing performance data that a stationary dyno might miss.
- Advanced Controls: We can adjust parameters many competitors cannot touch, including:
- Throttle Progressivity: Removing “lag” in fly-by-wire systems.
- Torque Management: Optimizing how power is delivered to the ground.
- Speedometer Calibration: Correcting your gauges for different tire sizes or gearing.
4. The Result: A Better Ride
By using the most thorough device available, we ensure:
- Lower Engine Temperatures: Proper fueling prevents lean-run overheating.
- Smooth Power Delivery: No more “flat spots,” surging, or low-speed bucking.
- Engine Longevity: A perfectly synced engine experiences less internal stress.
- Total Reversibility: We save a backup of your original factory calibration, so your bike can always be returned to stock.
Trust your performance to the experts. By choosing our shop and the TTS MasterTune system, you are ensuring your Harley-Davidson runs at the absolute peak of its capability.