Winter time is a wonderful time for many reasons … and one of them is if you have a turbocharged vehicle. They absolutely love cold air. In Vancouver our winters are mild (without much snow) and we recently tuned a local and very clean 2007 MazdaSpeed 3 with the following set of modifications:

SURE Motorsports Products:
Torq 3 – Rear Engine Mount
Countershift – shifter weight
Anchors – shifter brushings
Shortcut – short shifter plate

Cobb Tuning Products:
Access Port vs2
Turbo Inlet Hose
XLE BPV – bypass valve
Short Ram Intake
Downpipe
Current map – Stage2+”Intake”+TIH 94 v210 <– (i think its 210 or 220 – basically the newest)

T1R products:
Carbon Fiber Oil Catch Can (used for the Cobb PCV fix to stop oil from burning in exhaust)

Denso Products:
ITV22 1 Step Colder Spark Plugs (gapped at 0.28)

CP-E Products:
MZR DISI 2.3 HPFpump
Triple Gauge Pod (with Boost, Oil -Pressure & Temp)

The car was well setup and on one of the COBB’s latest off the shelf calibrations. As I mentioned in previous posts, Vancouver fuel quality leaves a lot to be desired, so the tune had to strike a good balance between power and safety for the modifications installed.

The Virtual Dyno graph attached (click to enlarge) shows the progression from the beginning of the day (RED – COBB OTS Stage 2 map) to the final BLUE – Stratified tune. Lots of midrange power was gained (+35 ft lbs of torque, +10 whp) … but unfortunately the top end was robbed by poor fuel quality. The stock K04 just won’t flow up past 5500 RPM so the only way to make power is through timing advances and our fuel just won’t allow it without knocking. In the name of safety we had to keep timing conservative compared to the OTS map.

Happy New Year,

The Stratified Team