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Cadillac News: 2020 Cadillac CT4-V and CT5-V Aren't As Powerful As Their Predecessors

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2 hours ago, dwightlooi said:

Because is very hard to do a wide ratio with a small number of speeds. Or, rather, it'll take a very large diameter planetary gear set. Most automatics get to >7 to 1 by using three planetaries in series. With 1 planetary set you can only get 3~4 speeds. By the time you put in all the additional planetary gear sets you may as well get more speeds from them. More gear sets in the same length however means smaller gear widths. Smaller gear widths means lower torque capacity.

So in theory, if each set can get 4 speeds and manufacturers are putting 3 sets in, the maximum number of ratios is 12?

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Posted (edited)
49 minutes ago, Drew Dowdell said:

So in theory, if each set can get 4 speeds and manufacturers are putting 3 sets in, the maximum number of ratios is 12?

Not really...

The GM-Ford 10-speed uses a total of four planetary gear sets and 6 clutches, although no more than 4 clutches and 3 sequential ratios are ever engaged at any one time (not counting the axle ratio). It is impractical to try to use every single element as input and output to one another.

Edited by dwightlooi
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Yeah... except they don;t sell the Escala. They sell the CT5 with a Mazda nose and a Honda Accord C-Pillar which copies, of all things, the stupid ipad on the dash design of unimaginative car interiors. They stuff it with a pair of WEAK SAUCE engines which took a great leap backwards in performance compared to the previous generation despite heaps of complexity and technology like the Tri-Power cam switching valve train.

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I don't know if the 2020 numbers are finalized/correct ~
2018 CTS 2.0T : 268/295
2020 CT5 2.0T : 275/295

2018 CTS 3.6TT : 420/420
2020 CT5 3.0TT : 404/400

IF correct, those certainly do not depict "great leaps backwards" in power. What remains, of course, is the V8 version's output. Everyone seems wrapped around the 'V' badge as opposed to looking at the comparative engines.

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1 hour ago, balthazar said:

I don't know if the 2020 numbers are finalized/correct ~
2018 CTS 2.0T : 268/295
2020 CT5 2.0T : 275/295

2018 CTS 3.6TT : 420/420
2020 CT5 3.0TT : 404/400

IF correct, those certainly do not depict "great leaps backwards" in power. What remains, of course, is the V8 version's output. Everyone seems wrapped around the 'V' badge as opposed to looking at the comparative engines.

Where did you get those numbers??? As announced, the CT5 numbers are:-

  • 2020 CT5 2.0T:        237hp / 258 lb-ft
  • 2020 CT5 3.0TT:     335hp / 400 lb-ft
  • 2020 CT5-V 3.0TT: 355hp / 400 lb-ft
  • 2020 CT5-V "High Performance" Edition:  Vaporware

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