It must be dyno season! Another one of our customers just hit the rollers with a Stratified tune. The tune was a little out of date as he’s added a front mount intercooler and downpipe since the last update but the numbers are very respectable for a K04 powered MazdaSpeed3 in the summer. This one’s a strong runner and I think with a couple’ more tweaks we’ll clear 300whp even with the summer heat! His final numbers were 294 whp and 340 ft lbs of torque at the wheels.
Just completed a tune for a customer in Ontario, Canada on his 2011 Speed3 with the following modifications:
cp-e HPFP
cp-e SRI
cp-e TIH
ETS 3.25“ intercooler
cp-e downpipe
cp-e catback exhaust
Denso ITV22 (1 step colder plugs)
Petro-Canada/Sunco Ultra-94 (94 octane)
The customer gained ~20whp and ~35 ft lbs of torque across the board.
It is also worth noting that the original OTS plot was taken with 17 degrees F (8 degrees C) cooler boosted air temperatures compared to the Stratified final map plot. In cooler temperatures gains will be greater as the higher air density really helps out the small K04 turbo. Now that it’s summer and this customer’s BATs were peaking at 130+ degrees F, we know this car has 300whp in it during the winter with a nice fat power band.
This tune was completed by the new member of our tuning team – Brad! 
We had a request come in for a custom tune for a CX-7 from Russia. This car has a built motor, Garrett GT3071R turbo, FMIC, exhaust and intake manifolds … the works.
As some of you may know the CX-7 shares the 2.3L DISI Turbo motor with the MazdaSpeed3, MazdaSpeed6, and MPS3/6 vehicles. VersaTuner offers an excellent interface for tuning the 2007-2009 CX-7 so we went to work and hope to get this Russian beast around 400whp when done. Will update later with final results.
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At Stratified we have recently launched a product called the Guardian Angel which is an overboost protection device for any gasoline fueled turbocharged vehicle.
We get a lot of questions about what such a device does and how it is better than the fuel/ignition cut that is available in most ECUs – so I thought I’d highlight how such a device can be effectively used.
The first thing to remember is that this device is DECOUPLED from the ECU as well as the boost control (both mechanical and electronic) system installed in the car. This makes it a true safety net should something happen.
For example, if a wastegate line pops off, the control system may reduce wastegate duty cycle, may initiate fuel cut, or may do both. However these responses often have delays built into them and do not IMMEDIATELY release boost pressure at the manifold which is what the Guardian Angel does. Whether your wastegate is not working, lines pop off, or you’re playing with the car’s tune and miss a number, the Guardian Angel will always be watching over the vehicle’s boost and preventing a catastrophic condition which often leads to a blown motor or bent rods. The rods below were bent from a 30psi boost spike on a Mazda DISI motor. The ECU just couldn’t react quickly enough to prevent the damage.
We’re not all expert tuners and most importantly we all make mistakes (even the pros) with the installation of parts and tunes. Parts fail all the time – at my most recent dyno day we had a wastegate line pop off that caused a 30psi+ spike – not something healthy for the motor. The last thing we watch at a track day is the boost gauge and this is what the Guardian Angel is constantly doing. It takes the worry out of driving the car in all conditions, installing new parts, and modifying tunes.
The Guardian Angel is easy to install and it works with any ECU or turbo configuration as long as the car is equipped with a push type/piston or diaphragm bypass or blowoff valve. So you can take this from a Mazda to a Honda to a Toyota and it will work the same way. If the device is triggered, you get a visual indicating (via the LED) and the overboost protection is a very gentle one. The ECU can only cut fuel/spark which is very hard on the motor and drivetrain. The Guardian Angel reduces boost but still allows you to keep your foot in it should you be in the middle of a pass for example. Last thing you want is to lose all power with incoming traffic. The Guardian Angel gives you the option to investigate the overboost condition when it is safe. See it in action in the videos below.
As an additional feature, we offer a external trigger for the Guardian Angel. Water/Methanol injection users that have failsafes try and reduce boost using the wastegate if the system fails or tank runs dry. This can be slow and if the wastegate fails it will be ineffective. Instead, you can attach your external trigger wire to the Guardian Angel from the WMI controller or any other ECU.
There have been a few independent review and install articles for the Guardian Angel and these are posted below. Remember that this device is universal to all turbocharged gasoline engines. If you have any questions, please Contact Us.
Happy and safe boosting!
The Stratified Team
