Question of the Week: Is the 10-speed in the Raptor a good idea?
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Question of the Week: Is the 10-speed in the Raptor a good idea?
The 2017 Ford F150 SVT Raptor will introduce the world to the 10-speed automatic transmission that was designed in conjunction with General Motors. The Raptor will likely be put through more rigorous real-world testing than any other model, so was it a wise idea to introduce a brand new transmission in this high performance model?
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Just a question (may be another stupid one too): Why not develop a Continuously Variable Transmission (CVT) instead of creating something as complicated as a 10-speed? One with that many gears is going to be doing a lot of "work" in day to day driving. Seems like it would have a lot of things to go wrong.
- Jack
- Jack
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#8
Just a question (may be another stupid one too): Why not develop a Continuously Variable Transmission (CVT) instead of creating something as complicated as a 10-speed? One with that many gears is going to be doing a lot of "work" in day to day driving. Seems like it would have a lot of things to go wrong.
- Jack
- Jack
From what I'm hearing the new 10 speed box will be like a lot of the new higher gear count boxes and it will skip gears to maintain the best possible gear ratio. Instead of going 1-10 and 10-1 it might go 1, 2, 4, 6, 8, 10 or something like that depending on the load requirements.
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Edit: I know some automakers have not had success with them, but that doesn't mean they are not an idea worth working on.
- Jack
Last edited by JackandJanet; 02-21-2015 at 11:57 AM.
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I don't think so, Jim. As I heard it, the dynaflow was pretty much like a total torque converter. The CVT uses a belt with pulleys that expand or contract to change the effective diameter. It allows the engine to operate at the ideal RPM regardless of speed and load (although it DOES have a torque converter too, so you do get higher RPM during acceleration or other heavy load).
Edit: I know some automakers have not had success with them, but that doesn't mean they are not an idea worth working on.
- Jack
Edit: I know some automakers have not had success with them, but that doesn't mean they are not an idea worth working on.
- Jack
I think the 10-speed - on this truck - is just a marketing 'because we can' gimmick. With that powerplant you could use a 3-speed tranny (with a TC, of course) lol. Engineering excess driven by 'cachet' ... imho.
MGD
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When you have a vehicle with a 400+ft-lb torque curve from just above idle to redline, I'd dearly like to know what the 'ideal rpm' is
I think the 10-speed - on this truck - is just a marketing 'because we can' gimmick. With that powerplant you could use a 3-speed tranny (with a TC, of course) lol. Engineering excess driven by 'cachet' ... imho.
MGD
I think the 10-speed - on this truck - is just a marketing 'because we can' gimmick. With that powerplant you could use a 3-speed tranny (with a TC, of course) lol. Engineering excess driven by 'cachet' ... imho.
MGD
I'm certainly not saying that CVTs don't have weaknesses - they probably do, but automatics have weaknesses too and adding gear ratios to them seems to me to be a questionable "improvement".
- Jack
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If the torque curve is truly flat, then I suppose it would be a point that gives best fuel economy. I know fuel economy is a driving force in the development and adoption of CVTs.
I'm certainly not saying that CVTs don't have weaknesses - they probably do, but automatics have weaknesses too and adding gear ratios to them seems to me to be a questionable "improvement".
- Jack
I'm certainly not saying that CVTs don't have weaknesses - they probably do, but automatics have weaknesses too and adding gear ratios to them seems to me to be a questionable "improvement".
- Jack
MGD
#15
A CVT seems a simpler concept, at least to me. But, I have no idea how reliable they currently are over the long term.
- Jack