Focused on Reliability, Safety, & Longevity for Yamaha’s in Aviation!
200HP Setting, 6500DA, Kitfox 45PB
Utilizing an aftermarket EFI system for your Yamaha in aviation takes the level of reliability, safety, and longevity to a whole new level. Our base Haltech EFI system is on-the-fly adjustable from 180HP to the factory rated 200HP. 210HP-250HP is an available option. No expense was spared developing this system. With over 80 channels of engine data being logged at any given time along with an extensive Dash / EMS (Engine Monitoring System) the amount of engine data available at any given time is amazing! This can be overwhelming, therefore the Dash monitors ALL of this data and automatically Cautions and/or Warns of potential issues when any parameter that is not within tolerance. Secondly, all of this data can be emailed to us for review. This is particularly helpful and heartwarming prior to that first flight!
Base Sidewinder EFI System
180HP, 190HP, & 200HP Selectable
$4495.00 + Options & Shipping
Not actual Haltech Sidewinder Harness
Haltech Nexus S2 ECM, 128MB onboard data logging, WiFi
*Loaded with BD Turnkey Engines developed Sidewinder specific tune.
All new Tefzel wire based wiring harness, built in-house in the USA
Includes Relays for EFI & 2 Fuel Pumps
3D Fuel Table referencing Alpha-N strategies and Boost
NTK Wideband Sensor for use with leaded and other exotic race fuels.
Mode Switch for on-the-fly HP / Boost control from 180-200 HP
210-250 HP optional*
Short Term (closed loop) Fuel Trims to rev limit
Long Term Fuel Trims (Learn), user controlled
Short Term (closed loop) Boost Control to rev limit
Long Term Boost Control (Learn), user controlled
Haltech Boost Control Solenoid included
Knock sensing & retard
Over 80 channels of engine data logged for over 2 hours
Remote tuning support included
BD Turnkey Engines extensive install manual including “how to’s” on all user controlled features, data logging, etc.
*Note: The “tune” loaded on the Haltech Nexus S2 is proprietary and all associated tables are locked with a passcode. Only “user controlled” features are accessible to the customer along with data logging and review. BD Turnkey Engines specific NSP Page Layouts are provided to simplify this task for the customer.
210HP - 250HP Option: +$650.00
This added cost is for the performance tune and the additional support that is inevitably needed for those that want to push this engine for higher performance or race applications. It retains stock injectors and is designed to still run on 91 octane fuel. It unlocks the “mode switch” from the base 3 positions to 8 positions giving power levels of 180, 190, 200, 210, 220, 230, 240, & 250HP. Pushing this engine beyond its factory rating of 200HP is completely at the discretion of the owner and no further guarantees are made.
Note: As of July 2025 there are a limited number of prop options that will support 200+HP on the Sidewinder with the Skytrax gearbox. The MMI (Mass Moment of Inertia) has to be considered. Although there are plenty of props that can handle 200+HP obviously they are too heavy for the Skytrax gearbox. The most common to use is the NR SR118 Reinforced Blades. These are custom made by NR and MUST be specified when ordering.
“Splash” Screen on initial bootup
DASH / EMS
5 Inch: $1400.00
7 Inch: $1700.00
Main Screen
Page 2
Page 1 of 2 Diagnostic Screens
Engine RPM
Prop RPM
MAP / Boost PSI
Target MAP / Boost PSI
Coolant Temp
Oil Temp
Gearbox Temp
HOBBS
EGT’s
Fuel PSI
Oil PSI
Volts
TPS (Throttle Position)
% Load of Engine
Ignition Timing
GPH (Gallons Per Hour), calculated
HP Target, based on Mode Switch position
Target AFR
AFR Actual
STFT (short term fuel trims)
LTFT (long term fuel trims / learn)
This is the additional cost for the AEM CD-5 or CD-7 Dash programmed as seen to read the CAN data from the Haltech Nexus S2 ECM. The layout has been developed over 100’s of hours of actual flight testing. It includes and extensive list of Caution (Yellow) and Warning (Red) features that will alert you if an engine parameter is out of specification for the given condition. It monitors all engine functions and are specific to the Yamaha Sidewinder.
4 pages are available at any given time. The Main page automatically is active on startup and shows the most common engine data needed during flight. Page 2 shows the HOBBS along with a secondary display of AFR and EGT data. Pages 3 & 4 are Diagnostic and give all the main engine data at a quick glance.
Haltech EGT CAN Module with 3 Sensors: $800.00
OPTIONAL SENSORS
EGT CAN Module w/ 3 Sensors: $800.00
Oil Temp Sensor w/ Adapter: $110.00
Fuel Pressure Sensor w/ Adapter: $240.00
Gearbox Temp Sensor: $95.00
WiFi Android & Apple App
Haltech does offer their Connect App for both Android and Apple phones. Full disclosure: I have not used this app or even tried it as I’m more of a laptop guy. So although the S2 ECM has this capacity, as of November 2024 I really can’t give an honest opinion or info on this feature.
HALTECH NSP SOFTWARE
Custom NSP Page Layouts including this “Dash” specific for the Sidewinder is provided to customers. This page shows all the “Vitals” of the engine.
User controlled functions of TPS Calibration, Wideband Calibration, Long Term Fuel Trims (Learn), & Long Term Boost Control (Learn) is all controlled via the Haltech NSP Software.
BD Turnkey Engines specific page layouts are provided via download or email to aid the customer in any of these features and processes.
HALTECH HISTORY
Haltech is literally one of the first aftermarket EFI companies in the world with their origins going back to 1986. All of their products are designed, built, and tested in their facility in Australia. Watch this video and learn 10 things about Haltech, it’s quite impressive. You can skip to min 11:50 for “Built to Last”!
HALTECH SIDEWINDER DEVELOPMENT
May 2025: Spring has "sprung" in the high desert of the west. About 35 hours on the 250HP Sidewinder Haltech EFI system and absolutely loving it. Standard SR118 NR Props are limited to 200HP so I have an order in for some reinforced 300HP rated blades but sure that will take a few months. But honestly, testing at 200HP on this size plane is insane and really don't think the average pilot needs anymore. I experienced a bit of torque roll today on take-off at that 200HP level. It jumps off the ground so fast you really have to be ready for it.
April 2025: Haltech Nexus S2 on the Sidewinder continues. This engine & EFI combination is an absolute dream not to mention a BEAST!
February 2025: First actual flight of the Sidewinder Haltech EFI system. Many hours of inflight testing and tuning to come. I have settle on using the latest Nexus S2 ECM from Haltech. It is about the same price in all but incorporates the Wideband O2 controller allowing NTK sensors that are more tolerant to leaded fuels. Additionally it uses standard USB-C connection eliminating the need for power or key on to connect. Other features include WiFi and App connectivity.
See link below to specific Haltech Nexus S2 Release
July 2024: Moving forward with EFI development for the Yamaha engines and specifically the Sidewinder & Nytro we will be using Haltech.
Haltech is not new to EFI as it was established in 1986 in Sydney Australia. All of Haltech components are designed, built, and tested in their own facility. Although the Haltech systems will be more expensive as an appropriate Haltech ECM alone is almost +$800 over the AEM Infinity 3 we used, NTK Wideband O2 Sensors are available to use along with more advanced ECM/PDM units. The NTK O2 Sensor is much more robust to leaded and exotic race fuels and Haltech’s new series of Nexus ECM/PDM units are vey full featured
The Haltech Nexus R3 combines their typical ECM like the Elite 1500 with a PDM (Power Distribution Module). All of this combined with modern CAN protocol can eliminate a lot of wiring and complexity while monitoring electrical loads. Additional features like WiFi connectivity and an onboard O2 Sensor driver really brings the Nexus to the forefront of modern ECM’s and their capacity.
Dash / Engine Monitoring
July 2024: Haltech makes a very nice line of Dashes for Engine Monitoring but at this time they are not configurable enough for our use in aviation for some of the more unique data we have come accustom to monitoring. They did just release an update that utilizes the new NSP software but I have yet to evaluate it and initial online reports are saying its still not as customizable as the AEM Dashes I’ve been using. Therefore for the time being and testing I will continue to use the AEM Dashes. But this may and probably will change as time goes on and the Haltech community demands the flexibility as seen with the AEM units.