UPDATE: The Hydra unit is out of stock.
News: We have made the difficult decision to discontinue the Hydra Nemesis. We still think it's an excellent ECU and we will continue to support all of our customers, but it will no longer be available from Flyin' Miata once we run out of current stock.
The Hydra Nemesis offers the best engine management for the Miata. Two-stage knock control including a limp-home map, 32x32 maps for fuel and timing, wideband autotuning with long term trim, overheat protection, full control for AC, electronic boost control that includes gear-based boost targets and the ability to control water/methanol injection or alternate fuel maps such as race gas or E85.
But wait, there's more!
On-board datalogging, VVT control, launch control, water injection control, staged injectors, individual fuel and ignition trim for each cylinder...the list goes on, and it's all fully integrated without the need for extra boxes. The integrated wideband O2 sensor allows the ECU to run closed-loop fuel control even at high boost levels, and the autotuning will dial in your fuel delivery quickly and easily. It also has on-board datalogging that can be triggered with a button or a switch. We've seen horsepower gains across the board even when compared to other full ECUs.
There are several levels of Hydra with various amounts of ability. We use the Gamma level as it's the best combination of features for a Miata, but we can supply others.
If you're trying to decide between the Hydra and the FM221, the Hydra is better suited to a really high power build. It has a higher boost limit - 45 psi instead of 21, CAN communication for external dataloggers and gauges, and the ability to run our Big Spark kit.
Version 2.7 of the Hydra is here! The software has been completely rewritten for better performance and easier tuning. The biggest differences are in the challenging areas of cold start, AC control and idle, with much better engine speed stability and almost instant start. It also has long term fuel trim, so it will autotune itself to perfection without any work on your part - you won't even need to hook up a laptop to fine-tune the fuel. You will need a laptop to do the basic calibration when you first install it though. Hydra 2.7 software is compatible with Windows XP, Vista & 7. You can download the software from Hydra's website if you want to take it for a test drive.
Firmware upgrades can also be installed by you, so you don't have to take your car off the road to ship it in for an update.
All Hydras come pre-programmed by us for your car's specifications. This base map is based on hundreds of dyno runs, customer feedback from all over the country and the experience that comes from offering remote tuning support for over a decade. Your car will fire, run happily and start autotuning right away. It will be a little conservative so your engine is safe, though.
The package includes all sensors needed. You don't need a separate box for knock sensing, or a different wideband sensor. It's complete. If you're price shopping against other ECUs, make sure you take all this into account.
Included with each Hydra:
- air temperature sensor (except Mazdaspeed)
- wideband O2 sensor
- knock sensor
- all wiring and ECU connectors required for installation
- full FM tech support - it's difficult to stress how important this is.
- a base map designed for your car
- USB to serial converter
Also includes one of our Hydra mounting brackets designed specifically for your application.
A laptop is required in order to tune the Hydra. The Hydra does use a serial port for communication with your laptop, so we include a USB-to-serial converter.
Flyin' Miata is the exclusive distributor for the Miata version of the Hydra Nemesis in North America. We can also supply Hydras to the rest of the world other than Asia or Australia.