CX5 and CX9 powertrain

U

Unobtanium

:
RDX Aspec Adv.
I found this interesting.


N/A model CX5, 2019

1st 3.552
2nd 2.022
3rd 1.452
4th 1.000
5th 0.708
6th 0.599
Reverse 3.893
Final Drive 4.325 (FWD) / 4.624 (AWD)
Tire diameter 28.5"



rpm at 70, based on this data: 2286



SIG/GTR CX5:

GEAR RATIOS (:1) Automatic transmission
1st 3.487
2nd 1.992
3rd 1.449
4th 1.000
5th 0.707
6th 0.600
Reverse 3.990
Final Drive 4.411
Tire diameter 28.7"


rpm at 70, based on this data: 2177


My question is...why? This doesn't strike me as significant in any way. Why alter the rations? That now involves 2 supply chains for the same "box". What ELSE is altered in the CX5 Turbo boxes? In fact...this does not seem like a CX5 box. It seems like a CX9 box.

CX9:
GEAR RATIOS (:1) 6AT
1st 3.487
2nd 1.992
3rd 1.449
4th 1.000
5th 0.707
6th 0.600
Reverse 3.990
Final Drive 4.411

So now comes the thought...this is from a vehicle 500# heavier or more. Does this mean it should be super overbuilt for use in the CX5? Akin to putting a Ford 9" in a 2004 Mustang GT with a stock engine, basically? Overbuilt is nice. But what real differences does the CX9 and CX5 SA transmission have between them? I cannot believe Mazda decided t o "mix it up for fun" or that 100rpm at 70mph was some deciding factor, especially since they kept the CX9 box in the much lighter CX5. No, the CX9 box has to have other changes in my opinion. Data? Details? Ideas?
 
I think it has been stated that the 2.5T is always mated to the same 6 speed found in the CX-9 and Mazda 6. The ratio's are different but it is supposed to be the same. The only transmission that Mazda uses that is "different" is the 6 speed in the Miata.
 
dougal said:
I think it has been stated that the 2.5T is always mated to the same 6 speed found in the CX-9 and Mazda 6. The ratio's are different but it is supposed to be the same. The only transmission that Mazda uses that is "different" is the 6 speed in the Miata.
Click to expand...

Why? Why differ the ratios so insignificantly? I feel like there must be some other changes? It makes no sense to have 2 sizes of gearings cut when one would do all, unless there are other differences.
 
Yeah so better question...liking the GT-R so far Uno?

And what color did you get? Also curious if the AWD is handling your driveway any differently from your 2015.
 
Last edited:
ColoradoDriver said:
Yeah so better question...liking the GT-R so far Uno?

And what color did you get? Also curious if the AWD is handling your driveway any differently from your 2015.
Click to expand...

My CUs under writers were not in Saturday, so the deal is getting finalized this Monday. Im in a 2018 GT fwd loaner. It gets parked at the top, lol! The feature I am liking most about this car are the headlights trackingnwith the steering. Amazingly nice!

Eta: machine grey. Its very similar to the gun metallic that my 2012 370z was, and I liked that color a lot.
 
Last edited:
Unobtanium said:
My CUs under writers were not in Saturday, so the deal is getting finalized this Monday. Im in a 2018 GT fwd loaner. It gets parked at the top, lol! The feature I am liking most about this car are the headlights trackingnwith the steering. Amazingly nice!
Click to expand...
Never had a car (or driven one) with moving headlights before. But always thought that was a neat feature.
 
Unobtanium said:
Why? Why differ the ratios so insignificantly? I feel like there must be some other changes? It makes no sense to have 2 sizes of gearings cut when one would do all, unless there are other differences.
Click to expand...
It makes much more sense if Mazda is trying to save money. It moves entire powertrain of the CX-9 into a CX-5 without changing anything, including gear and final drive ratios. Suspension and tire/wheel setup is another example. CX-5 2.5L turbo carries over exactly the same setup from naturally aspirated 2.5L CX-5 even though it gets 40~63 more hp and 124 more lb-ft of torque. The capacity of the fuel tank also keeps the same although the gas mileage is worse.
 
I'd take the shorter gearing.. and I could appreciate that final drive as I tend to drive faster
 
yrwei52 said:
It makes much more sense if Mazda is trying to save money. It moves entire powertrain of the CX-9 into a CX-5 without changing anything, including gear and final drive ratios. Suspension and tire/wheel setup is another example. CX-5 2.5L turbo carries over exactly the same setup from naturally aspirated 2.5L CX-5 even though it gets 40~63 more hp and 124 more lb-ft of torque. The capacity of the fuel tank also keeps the same although the gas mileage is worse.
Click to expand...

...but why doesn't the CX5 NA use the same transmission, too? One less part...

what's different? I doubt the ratios are ALL.
 
The turbo G has high torque like a diesel and the diesel transmission is "stronger" than the NA G with extra clutches etc. Maybe they are using the diesel transmission on the turbo?
 
Unobtanium said:
I found this interesting.


N/A model CX5, 2019

1st 3.552
2nd 2.022
3rd 1.452
4th 1.000
5th 0.708
6th 0.599
Reverse 3.893
Final Drive 4.325 (FWD) / 4.624 (AWD)
Tire diameter 28.5"



rpm at 70, based on this data: 2286



SIG/GTR CX5:

GEAR RATIOS (:1) Automatic transmission
1st 3.487
2nd 1.992
3rd 1.449
4th 1.000
5th 0.707
6th 0.600
Reverse 3.990
Final Drive 4.411
Tire diameter 28.7"


rpm at 70, based on this data: 2177


My question is...why? This doesn't strike me as significant in any way. Why alter the rations? That now involves 2 supply chains for the same "box". What ELSE is altered in the CX5 Turbo boxes? In fact...this does not seem like a CX5 box. It seems like a CX9 box.

CX9:
GEAR RATIOS (:1) 6AT
1st 3.487
2nd 1.992
3rd 1.449
4th 1.000
5th 0.707
6th 0.600
Reverse 3.990
Final Drive 4.411

So now comes the thought...this is from a vehicle 500# heavier or more. Does this mean it should be super overbuilt for use in the CX5? Akin to putting a Ford 9" in a 2004 Mustang GT with a stock engine, basically? Overbuilt is nice. But what real differences does the CX9 and CX5 SA transmission have between them? I cannot believe Mazda decided t o "mix it up for fun" or that 100rpm at 70mph was some deciding factor, especially since they kept the CX9 box in the much lighter CX5. No, the CX9 box has to have other changes in my opinion. Data? Details? Ideas?
Click to expand...

Hi There

Anyone can give me the gear ratios for the 2015 CX-5 2.2 Diesel Auto Akera in South Africa.

Is it maybe the same as the above

SIG/GTR CX5:

GEAR RATIOS (:1) Automatic transmission
1st 3.487
2nd 1.992
3rd 1.449
4th 1.000
5th 0.707
6th 0.600
Reverse 3.990
Final Drive 4.411
Tire diameter 28.7"


rpm at 70, based on this data: 2177

Reason me asking is to work out the gear ratios if i decide to change tyre size from 225/55/19 to 245/50/19 or 255/50/19.
I want to see how much impact there will be on the transmission and how much it will be out.
 
Take a look at the tire revolutions per mile for the different tire sizes under specs on TireRack on line. Subtract the difference and divide by the stock number x 100 and you will get the effect in percent to your speedometer and odometer.
 
I could not find where someone posted their torque curves in each gear. I don't think ANY of them intersected within the 2.5 SA-G's rev range. The gap from 1st to 2nd was especially bad, and causes a noticeable drop in acceleration. Closing up the gaps between gears will give stronger acceleration without that sagging feeling.
 
ColtX-5 said:
I could not find where someone posted their torque curves in each gear. I don't think ANY of them intersected within the 2.5 SA-G's rev range. The gap from 1st to 2nd was especially bad, and causes a noticeable drop in acceleration. Closing up the gaps between gears will give stronger acceleration without that sagging feeling.
Click to expand...
Hence more gears is better. If Mazda is not willing to spend money developing an 8-speed or 10-speed automatic transmission, they should outsource one from Toyotas new 8-speed tranny found in Camry and RAV4 and its design philosophy is very similar to SkyActiv-Drive 6-speed AT.
 
ColtX-5 said:
I could not find where someone posted their torque curves in each gear. I don't think ANY of them intersected within the 2.5 SA-G's rev range. The gap from 1st to 2nd was especially bad, and causes a noticeable drop in acceleration. Closing up the gaps between gears will give stronger acceleration without that sagging feeling.
Click to expand...
I don't understand what you meant by your reply. Can you please elaborate on this.
 
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