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- Plano, Texas, USA
Your 2024 CX-5 Signature has a 2.5T, and it doesn’t have cylinder deactivation.
Mazda is advertising CX-5 models without Cylinder Deactivation and i-stop
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- Plano, Texas, USA
You actually could be right that Mazda could have just added some software only to disable the cylinder deactivation functioning with CD hardware is still there. But I doubt Mazda would be doing this which will cost them more with additional CD components when they openly claim the parts shortage on CD and i-stop features.
Yes the cylinder head is different between the 2.5L NA with CD and without CD (if it isn’t software disabled). See here:
Buy the 2024 CX-5 NA to avoid cylinder head crack issue?
Driving like your grandma. Never revving the engine past 2500 rpm. That sort of thing.
The term applies more to standard shift cars than automatics.
Back when cars were 90% manual, people would shift early, and barely take the engine past 2,000 rpms. Running at 30 mile/hour in fourth gear with the engine barely above idle, and then trying to accelerate without downshifting. It would run like an old dog. Hence the saying "dogging it".
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- Plano, Texas, USA
2.5T has different cylinder head due to added turbo plumbing. There’re 3 different cylinder heads for Mazda’s 2.5L series.
The cylinder head for original 2.5L NA without cylinder deactivation has p/n PYY2-10-SJ0.
The cylinder head for later 2.5L NA with CD has p/n PYFA-10-100E. However, there’s a “loaded” head PYY4-10-SJ0 for easy head replacement to save labor cost; and p/n 0000-99-SCX5 further includes necessary gaskets and washers with the loaded head to replace the cracked head.
Finally, the cylinder head for the 2.5T has p/n PYY1-10-SJ0C which of course is the latest updated version to prevent head crack. There’re many revisions for turbo head, PY8W-10-100、PY8W-10-100A、PY8W-10-100B、PY8W-10-100D、PYY1-10-SJ0A、PYY1-10-SJ0B、PYY1-10-SJ0R-00, and then the current one.
Details:
For CX-5’s with 2.5T, the automatic transmission has beefed up to handle the bigger torque. Actually Mazda simply just uses the same heavier duty transmission from the 2.2L diesel which has been on the market since 2012 worldwide. It has the same multi-pack lock-up clutch (not the clutch pack for gears as you implied) in torque converter. However, the transmission used for 2.5L NA with CD has to switch to a single plate lock-up clutch in torque converter to save space for a fulcrum to reduce the CD vibration unfortunately which could contaminates the ATF with iron power due to excessive wear:
Automatic Transaxle on 3-4 upshift - Bulletin 05-005/23
And yes the front brakes are larger with dual-piston caliper, again, they’re from 2.2L diesel model.
Attachments
N7turbo
2023 CX-5 2.5T ... 2024 MX-5 RF GT
Not only that, but I wouldn't be surprised if port flow or combustion chamber designs were different. I'd love to see a comparison.
7eregrine
The man, the myth, the legend
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- Land of Cleve
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- 2016.5 CX5
LOL I would have thought it meant the opposite.
Massively cheaper for the turbo head... Another advantage. And you don't have to worry about deactivation either.
Funny... that's what I and close others in my circles always thought that meant too... treating a vehicle like POS at all RPMs and temps
I've never heard it termed that way toward those light on the throttle and lugging
I've never heard it termed that way toward those light on the throttle and lugging
Well, I'm an old fart, and dogging or lugging it meant what I said (this is years ago). With almost all cars being automatics, it's harder to lug it, as the tranny will downshift for you. Back in the day when 90% of cars were manual, it meant shifting early and keeping the engine at low revs where it had no pull.
propflux01
2024 CX5 Signature
Lugging and Dogging to me are two different things. Lugging is early shifting while loading the vehicle, not downshifting up hills with the gas pedal down, etc. Dogging the vehicle is driving hard without regard for engine temp, maintenance, cooling, bouncing off the rev limiter all the time, full throttle constantly, etc., just basically treating the vehicle like crap.
Interesting. I guess if you put the word hot in front of dogging, then I can understand that interpretation. Like I said, in my day, dogging it and lugging it amounted to the same thing. Either way, it's all good.
My Acura MDX Advance has idle stop and there is no option to disable it in vehicle settings. You have to press a button every time you turn the car on if you want to disable it. Or install an idle stopper. A lot of people have had problems with the car failing to restart, mostly because of aging batteries. I am so glad my 21 CX-5 GT-P does NOT have this horrid feature. MDX models without idle stop are marketed with 1mpg less fuel economy. Even 1mpg seems overrated. It's hard on batteries, hard on starters, and increases traffic backups. So thankful the cx-5 I have doesn't have that nonsense.
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- Plano, Texas, USA
If you dislike the i-stop, you should really hate the cylinder deactivation which not only makes the 2.5L NA so complicated, but also you can’t just press a button to disable it. You have an Acura MDX, the 3.5L V6 has Variable Cylinder Management™ (VCM®), a cylinder deactivation system which is having bad reputation with long term problems and many have installed an aftermarket device to disable it.
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- W WA
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- 2024 CX-5 Premium
Anyone know when we might start seeing the online parts catalogs be updated to include 2024 models?
