Mazda6 Signature
- Thread starter banjos-n-beer
- Start date
Could be that. Or more likely, the MotorTrend driver didn't know that you have to push through the 1st stop on the petal to get full acceleration
Octane would not effect it as much. It's the way Mazda have tuned the engine.
Remember this engine was designed for the CX-9 and Mazda said that they tailgated/followed lots of parents with children who pick up/drop off children at school, go to shopping centres etc during the development phase and determined that most of the power & especially torque is needed in the bottom half of the rev range. This is the area these people do most of the driving at. Therefore they didn't see any need to have more power / torque in the top end.
In the Mazda 6's case, they have just transplanted the engine straight in without altering it's power/torque delivery. So the same characteristics apply here with the exception of hauling less mass. Therefore the 0-60 time is faster than the CX-9 but behind other makes & models.
While it is the same engine that's in the CX-9, it is was specifically refined and tuned for the 6...its not a direct transplant from the CX-9, it is easy to map and tune the same base engine differently for different applications on different vehicles...
https://insidemazda.mazdausa.com/th...ce-torque-horsepower-new-turbocharged-mazda6/
All that information was said for the CX-9 from memory. It is a direct transplant. No changes were made and AFAIK Mazda actually never mentions anywhere they tuned it for the 6.
Without delving to deeply, here is the description from Mazda's website:
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The power delivery is essentially the same for the 6 & CX-9. Max power and max torque are delivered at the exact same rev range for the engine regardless of which vehicle it is in. (170KW at 5000rpm, 420NM at 2000rpm)
Even the gear ratios are the same except for the only difference being the final drive ratio for the 6 (4.090) and CX-9 (4.411)
Even the gear ratios are the same except for the only difference being the final drive ratio for the 6 (4.090) and CX-9 (4.411)
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- 2021 CX-9 Sig
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- 2021 CX-5 GT
All that information was said for the CX-9 from memory. It is a direct transplant. No changes were made and AFAIK Mazda actually never mentions anywhere they tuned it for the 6.
Without delving to deeply, here is the description from Mazda's website:
Yeah, it is the exact same engine. Part of me hopes that like the 2.0 in the Mazda Miata, they will eventually get to tuning it for the Mazda 6.
All that information was said for the CX-9 from memory. It is a direct transplant. No changes were made and AFAIK Mazda actually never mentions anywhere they tuned it for the 6.
Without delving to deeply, here is the description from Mazda's website:
This is a quote per Mazda's website,
" The SKYACTIV-G 2.5T engine has been in Mazdas lineup since 2016 when it went on sale in the CX-9 crossover SUV, winning the prestigious WardsAuto 10 Best Engines award, among others. Even in the short time the SKYACTIV-G 2.5T engine has been available, it has already been refined and tuned specifically for the Mazda6. "
So Mazda is saying in their own website that they tuned it different for the 6...So, should I assume your saying that they are lying on their own website to their customers?
It is marketing.
No review I have seen (you can check online if you so wish) has said they have updated it specifically for the 6. They have said they have dropped it in from the CX-9. They also basically said the power delivery is pretty much the same as the CX-9. It's a gradual surge rather than push back into the seat.
Even our Mazda 6 brochure makes no mention of it being specifically tuned for it. Just says:
The first turbocharged engine to join the SKYACTIV-G series, the SKYACTIV-G 2.5T delivers both outstanding low and mid-range torque, with excellent fuel economy. The Dynamic Pressure Turbo system controls exhaust pulses to produce a huge 420Nm of torque and 170kW of power. Meanwhile the Cooled Exhaust Gas Recirculation (EGR) cycles cooled exhaust gas back into the air intake system, lowering the engine’s fuel consumption and improving economy.
For comparisons sake, here is an extract from our CX-9 brochure:
S K YA C T I V - G 2 .5 T E N G I N E
The ground-breaking new petrol engine delivers the torque of a 4.0 litre V8, yet does so with impressive fuel efficiency from 8.4 litres of fuel per 100km.* It offers excellent dynamic performance in the mid-to-low rpm range, which is where the majority of everyday driving occurs. World-first Dynamic Pressure Turbo controls the degree of exhaust pulsation depending on engine speed. Driven by a constant pressure flow at higher rpms, the system reroutes the energy in every exhaust pulsation to maximise drive force at lower rpms. This means you get turbocharged performance, without the lag.
Not that different from each other.
The information I quoted aka power/torque figures or gear ratios does not say anything different between the 6 and CX-9 except the final gear ratio.
If you find any reviews that say otherwise then happy to stand corrected.
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Furthermore, Mazda's current track record is basically lifting engines from one model to another with minimal change (like for like as in fwd to fwd) with the exception of gear ratios. The 2.5 NA (pre cylinder deactivation) is essentially the same in the Mazda 3 and 6 and fwd CX-5. The 2.2 D (talking about high output not low output which is available in only certain markets) is the same in the Mazda 6 and Mazda CX-5.
Both these engines have pretty much identical power delivery.
So there is no reason why Mazda would deviate from this policy with the 2.5T.
Until we see comparative power/torque delivery graphs for both the 2.5T in the CX-9 and the 2.5T in the 6, the default position of same power and torque delivery for the engine in both vehicles (with the exception of final gear ratios) applies.
Both these engines have pretty much identical power delivery.
So there is no reason why Mazda would deviate from this policy with the 2.5T.
Until we see comparative power/torque delivery graphs for both the 2.5T in the CX-9 and the 2.5T in the 6, the default position of same power and torque delivery for the engine in both vehicles (with the exception of final gear ratios) applies.
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- 2021 CX-9 Sig
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- 2021 CX-5 GT
Heck, leaving out one bolt is enough to call it tuning. It is the exact same engine in the exact configuration. Mazda made a nice car that is selling well but it is not a speed demon or what people hoped for - which in some ways could be considered unrealistic.
Nowadays tuning and remapping is done via software through the ECU, no internals are touched or changed. Like I said in my original comment most manufacturers these days use the same base engine across a number of vehicles and then tune and remap ECU differently for each specific vehicle they put base motor in...so no the 6 isn't tuned the same way as the CX-9, and seeing how through the ECU they can make changes to everything the engine is doing all the way through the piston cycle, looking at generalized spec sheet of the engine wouldn't really give enough info as to the software tuning changes made...so yes generally speaking you guys are right that the 6 turbo shares the same engine with the cx-9, but technically speaking it isn't exactly the same as the CX-9, because the ECU was remapped and tuned for the 6...and no Mazda wouldn't go out of their to explain that because it is common practice in the auto industry to use one base engine for several type of vehicles and just remap and tune the ECU's differently for each vehicles intended purpose because it is cheap and efficient way to get the most out of their engines.
Ok. But generally speaking the way the engine performs in the 6 is pretty much identical to the CX-9. ECU remapping hasn't made any difference to this. The core charactersitics of the engine are the same regardless of it being in the 6 or CX-9.
mazdadude
ZOOOOOOOOOM ZOOOOOOOOOM
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- '16.5 Mazda CX-5 Touring
Sounds like the tire slip at launch and after 4k rpm was a contributing issue with the lackluster acceleration times. They (Motor Trend), comment on the disappointing traction available with the SUV tires Mazda supplied on the 6.
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mazdadude
ZOOOOOOOOOM ZOOOOOOOOOM
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- '16.5 Mazda CX-5 Touring
The Mazda6s performance is particularly impressive when you consider the Ziex ZE001 is a crossover/SUV tire.
Wait, hold the phone. The Mazda6 comes with an SUV tire? Same tire as the Nissan Rogue and Subaru Ascent? What on earth for? We asked Mazda, and a spokesperson told us, The Falken Ziex ZE001 A/S was chosen as the OE 19-inch tire for the 2018 Mazda6 for a variety of reasons, including stable controllability, refinement, quietness, lower fuel consumption, and braking characteristics. While there are off-the-rack versions of the Falken Ziex ZE001 A/S available, the tires equipped on the 2018 Mazda6 were specifically designed in collaboration with Falken, engineered to specification with the program objectives in mind to deliver a refined experience that complements Mazdas capable chassis dynamics.
Here is the article that it is quoted from.
http://www.motortrend.com/cars/mazda/mazda6/2018/2018-mazda6-signature-25t-first-test-review/
Huh. Lucky our Mazdas ride on Bridgestone Turanzas
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I think your trivializing ECU tuning and remapping...it can and does make big differences in performance, that is why customers line up and pay big bucks for remapped and retuned ECU chips on the aftermarket...
