Hi Tim,
Welcome, us CX7 owners are a rare breed.
Maybe we can vie for title of Australia's fastest CX7, I don't think there is much other competition.
I have been researching heaps so feel free to ask questions.
Here is my build thread http://www.ozmpsclub.com/forum/membe...-cx7-mods.html
The weaknesses of the MZR engine are the HPFP (high pressure fuel pump), timing chain and VVT actuator and air conditioning compressor. Otherwise they are good for up to 400 ft.lb and 400hp on stock internals (bottom end pistons and rods etc).
The main weaknesses of the CX7 are high fuel consumption due to vehicle weight and spirited performance and no top end power due to a faster spooling version of the K04 turbo. They also can leak transmission oil from the transfer case. The turbo details are in a sticky FAQ thread on the Mazdaspeed Forum.
My understanding is that Versatune is the only tuning software that works on the CX7 ECU. I hope to be ordering mine soon, maybe as soon as tax refund arrives.
CX7 - The younger, taller and sexier replacement for the MPS6 and the first car designed around the MZR DISI
2007 CX7 2.3 DISI AWD Ice Blue | HID's | ETS TMIC | Cobb XLE BOV | CX9 20" wheels | 245/50/20 Scorpion STR's | CS HPFP | CX9 Brakes | Pedders Sports Ryders -40mm | CS Turbo | JBR 3.5" WPI | Cooling Mist WMI |Versatune