Taut and crisp with a good structure, the new CX9 should get back in the game against the Honda Odyssey and Toyota Sienna. The New Chrysler Pacifica – lately a benchmark as the now defunct Town and Country nameplate – is the unknown in a segment that while diminished is still substantial. GM and Ford ceded the field to their competitors.
Mazda Motor Corporation is now making the CX-9, a three-row mid-size crossover SUV, at its Ujina Plant in Hiroshima. The first vehicles are shipping to the U.S. and Canada which are predicted to account for 80% of its global sales forecast at 50,000 units annually. Sales of the long overdue CX-9 start during the spring 2016. (See Overdue Update of Mazda CX-9 Appears at LAAS)
This three-row seat CX-9 is long overdue for a major overhaul in an ultra-competitive field, but Mazda’s fragile financial position (net income -25% in Q1 of Japanese FY 2016) saw it mildly freshening the Ford Edge-based platform since its 2007 introduction. That’s a long time in car life years. Such vehicles turn into, well, dogs.
The people mover that has finally emerged is a highly-styled anti-SUV with an updated powertrain that joins the mainstream. CX-9 is designed for the North American market that is expected make up 80% of its global sales forecast. Arguably, this is justified since CX-9 is the first model to have Mazda’s new 2.5-liter direct-injection, turbocharged gasoline engine, whose marketing name is so absurd in North America, AutoInformed will not print it here. The forced-fed 2.5 is a complete rejection of Mazda’s previous anti-establishment approach that eschewed complicated and expensive turbocharging systems, optimizing instead existing naturally aspirated powerplants, itself a forced-fed decision caused by yen-sense.
However, impending fuel economy regulations and customer demands for improved performance now see Mazda introducing a turbocharged 2.5-liter four-cylinder with 227 horsepower (169kW) @ 5000 rpm and 310 lb.-ft. (420Nm) of torque at 2000 rpm. Remember you advertise and promote horsepower, but you drive torque, as any electric vehicle owner can tell you. The drive should be fun, at least on paper, or is that a computer screens these days?
Some segment firsts are claimed to overcome Mazda’s late (or last?) entry into forced induction. It’s the world’s first turbocharging system that can vary the degree of exhaust pulsation depending on engine speed, and a cooled exhaust gas recirculation (EGR) system that allows the engine to maintain an ideal air-fuel ratio 14.7:1 for gasoline (λ=1) over a wider output range.
Below 1620 rpm, the volume of the exhaust ports is reduced by closing a series of valves located just before the turbine that drives the turbocharger. This trims interference between exhaust pulses, and is said to maximize the energy of each pulse to produce a high turbine driving force. At higher engine revolutions, where there is sufficient energy in the exhaust flow the valves open, allowing the turbocharger to be driven by exhaust gases as in a traditional turbocharger. Whereas existing variable turbochargers adjust the speed or direction of exhaust gas flowing into the turbine, the so-called Dynamic Pressure Turbo is a unique technology that varies the degree of exhaust pulsation.
Cooled exhaust gas re-circulation takes some inert exhaust gas from the combustion process and reduces its temperature via a cooler before introducing it back into the engine’s air intake. This lowers the temperature of combustion in the engine, preventing or at least delaying the onset of knocking This expands the range during which the engine can maintain the ideal air-fuel ratio, reducing the need to retard ignition timing, which decreases output and economy.
It should be noted that variations of these approaches to fine-tune combustion are being pursued by all automakers. It is just a question of market introduction. Let the hype continue. The real results will be what is experienced on the road and at the pump by customers.
“Moving forward, Mazda will continue working to advance our entire product line-up, raise the appeal of the Mazda brand and build a strong emotional bond with customers,” says Masamichi Kogai, Representative Director, President and CEO of Mazda. He has no other choice; no matter what segment Mazda competes in against far larger auto groups.
